DIY Mercedes manual transmission repair

In detail: do-it-yourself Mercedes manual transmission repair from a real master for the site my.housecope.com.

User
Messages: 3860
Registration: 11.6.2012
From: bum

simply and easily . the main thing is to disassemble it without breaking anything .. at autopsy it is better to mark it. what where if the first time is the parsing process .. and most importantly. DON'T BE AFRAID TO DO WHAT YOU NEVER DO. AFRAID TO DO WHAT IS IMPOSSIBLE TO DO. and everything will be. I believe in you

User
Messages: 6848
Registration: 30.3.2010
From: Gatchina Len region

Blessed is who the young E. Bet and in old age calmly bears
who regularly drinks vodka and does not trust anyone on credit.

The dispute on the forum is like an Olympiad among the mentally disabled, even if you won, you are still d (at) booeb.

W220 S350 2004; POLO 5 Hatch 2011; Kawasaki ZZR600 2008

Moderator
Messages: 7078
Registration: 12/31/2008
From: M.O. Pushkino

Administrator
Messages: 10885
Registration: 13.7.2007
From: Minsk

I'm not afraid of anything, it just makes sense to know the cost of the repair part. And also a busy garage for an indefinite period of time, when as a garage it is now a source of income for me.

To remove to put the box is 2 days of fucking from morning to evening. Where is the guarantee that the box will be better, or even not worse than mine?

Installation warranty. And I wrote above to install it on ashka. and then the lover should immediately buy the seals of the semi-axles and buy oil, the last 235.10 pezdets which is not cheap.

I also thought about this, but you look at the prices for the same synchronizers and their clips, the price of 2 boxes is poured out there.

As for the vis, everything seems to be extremely clear. But the troubleshooting of bearings and all the same synchronizers is not described. How to check them, I haven't seen new ones, xs how it should look.

Video (click to play).

User
Posts: 1873
Registration: 3.7.2010
From: Nizhnevartovsk -> Minsk

User
Messages: 6848
Registration: 30.3.2010
From: Gatchina Len region

The motor, the box is given a 1 month warranty with us. I can ask you too.

Post has been edited wheelchair – 5.1.2013, 11:05

Blessed is who the young E. Bet and in old age calmly bears
who regularly drinks vodka and does not trust anyone on credit.

The dispute on the forum is like an Olympiad among the mentally disabled, even if you won, you are still d (at) booeb.

W220 S350 2004; POLO 5 Hatch 2011; Kawasaki ZZR600 2008

Moderator
Messages: 7078
Registration: 12/31/2008
From: M.O. Pushkino

User
Messages: 3860
Registration: 11.6.2012
From: bum

W220 S350 2004; POLO 5 Hatch 2011; Kawasaki ZZR600 2008

Moderator
Messages: 7078
Registration: 12/31/2008
From: M.O. Pushkino

Moderator
Posts: 23113
Registration: 24.1.2007

W220 S350 2004; POLO 5 Hatch 2011; Kawasaki ZZR600 2008

Moderator
Messages: 7078
Registration: 12/31/2008
From: M.O. Pushkino

User
Messages: 3848
Registration: 22.12.2010
From: Barnaul

User
Messages: 4860
Registration: 9.1.2007
From: Ukraine

You need to prepare yourself technically. understand what needs to be changed and what needs to be repaired.
People who are engaged in the repair of boxes - EARN.
That is. renovation brings income.
It makes sense to repair itself always if you have the strength.
If you can earn more in the time spent on repairing the box, then it is better to give it to specialists.

Himself personally repaired * an unprofitable 4-mortar * satisfied, it works. I got great pleasure from the repair.)))

Administrator
Messages: 10885
Registration: 13.7.2007
From: Minsk

They die only on the way, on ashki I personally bought 2 boxes for people. On whites, too often.
On the 202nd shed I also had problems with the box before the sale.
And what about to do, you yourself understand depending on how and what to do.

We also give it, if I take it from my own, then they will give it 3 months. Only blea, in the case of a bad box: I get on the oil seals, oil, the backstage repair kit, the rear switch is about Franklin and -2 days of life.

I also thought so, when I was sorting out the motor, I poured it into the Titan box according to the tolerance (it was not on the bank in the brochure), with warming up to operating temperature or with a 10-minute drive on the MKDA, the gears stopped normally, the rubber curtain was installed.Replaced with the original, tk. I did not do anything with the box, i.e. I could not push anything, everything became normal. Then he compared this titanium with the original, they differ decently, both in smell and in ductility. Titanium is worth something in the region of $ 8 a liter, the original is more than 30 euros.

I do not believe that in St. Petersburg the officials do not have it available, we do not even have the officials.

The flywheel is new, the clutch is new, the stage has been moved, the clutch hydraulics have been replaced. Korobas is 100%.

Everything brings income if you have something to think in your head)

Yes, there is more than enough strength and desire, in fact every now and then I do not trust anyone. Around only buggers are crooked.

Mercedes produces automatic transmissions on its own. This is done to make the cars and their behavior more in line with the company's vision of what a luxury car should be. Among modern competitors, the latest Mercedes automatic transmissions are quite reliable, but not at all eternal, like some Toyota ones. And if they fail, their repair is always very expensive and problematic. This is due to the complexity of the automatic transmission design and the very high cost of spare parts for cars of this class.

Automatic transmission Mercedes does not like aggressive driving, frequent shifting of the gear selector and dirty oil. These cars are designed for comfortable and imposing travel around the city and highway. Despite the powerful engines, these cars are anything but sporty.

These four- and five-speed automatic transmissions were produced until the mid-nineties for Mercedes S, C and E class in 140 and w 124 bodies with engines up to 6 liters. Automatic transmission 722 5 version for Mercedes in 140 and w124 bodies differs from 3 only in the presence of the 5th gear and mechanisms for its provision. For the four-stage variation, the automatic transmission repair of such a Mercedes was rarely required.

Unfortunately, the introduction of 5th gear in 140 and w124 bodies has significantly reduced gearbox life. The fifth gear in 140 and w124 bodies was the most unreliable place of this automatic transmission. Friction discs and some other paper-coated parts took 10-12 years to wear out completely, then they just crumbled. By modern standards of life, automatic transmission is still very good. In such a situation, one of the speeds usually stopped working. For the third version, the repair of the Mercedes 124 automatic transmission was rarely required before the expiration of these 10 years. The same goes for the newer 140 bodywork.

The pressure regulator in 140 and w124 bodies, if damaged, could squeeze the transmission fluid into the intake. Repairing these transmissions for the 140 and w124 bodies is so expensive that it was easier to buy a new one, especially now when parts are no longer easy to find. So it's better not to look at old Mercedes in 140 and w124 bodies without new boxes, repairs can easily exceed a couple of thousand dollars. Spare parts for them are rare and expensive.

Four-stage version of the 722.3 box for small engines of Mercedes E class. Their designs have very similar breakdowns: crumbling clutches, a pressure modulator, a centrifugal pressure regulator, if it breaks down, then the selector knob does not allow the first gear to be engaged.

This five-speed gearbox was created to replace previous generations of gearboxes.

According to experts, this box is the most problematic of the entire line of Mercedes, since in almost all cases it requires a major overhaul. Sad statistics arose due to the frank dampness of the development and from the fact that many parts from the factory were of insufficient quality. The main reasons for the failure of these boxes are the rupture of the clutch band and the failure of the hydraulic plate.

Sliding bush. Until 1999, the slide bushings were the weakest point of the box, they broke one after another. The more powerful the engine was, the faster it collapsed and stopped connecting the input and output shafts, immobilizing the car. At first, a backlash formed, without any symptoms and signs, then the sleeve collapsed along the way, contaminating the entire box with its remnants.

Automatic transmission 722 6 series for Mercedes S, E and C class

After 2001, Mercedes engineers, trying to fit the automatic transmission under the new label of maximum efficiency, made it work faster. This was achieved by reducing the thickness of the friction discs, which now easily broke together with the gearbox at the slightest slip.

Factory defects of the spool led to slippage when changing the first gears. The input and output shaft sensors became a headache; The automatic transmission was taken out of emergency mode without being removed, however, not for long. The sensors still needed to be changed.

Spare parts for this automatic transmission will not be cheap. It is better not to buy used or reconditioned ones. Shafts and bearings that have worked will no longer have the strength with which they were released at the factory.

This is a five-speed automatic transmission, installed on Mercedes A class, w168, for example. Their design differs markedly from the rest of the line of automatic transmissions familiar to Mercedes. The w168 box resembles a three-shaft mechanic. Automatic transmission for w168 is the first of the Mercedes ECU developments. The unit was placed in the body of the automatic transmission itself and combined with a hydraulic plate (almost mechatronic). This "ingenious" decision led to the fact that in the event of failure of any component of the valve body, it was necessary to change it entirely in the body of the w168. Now inside the valve body there were: an electronic control unit, solenoid valves, sensors, etc. The more complex the mechanism, the easier it breaks.

Mercedes W168 with automatic transmission 722 7 series

The variator was installed on Mercedes A and B class. The electronic control unit fails, microcracks appear in the pump.

The seven-speed electro-hydraulic automatic transmission, which replaced the 722 of the sixth version, has been installed since 2005 on Mercedes E, S, and C class, for example, in the body of 211. The first series for the 211 body was so crude that not a single transmission was finalized before the end of the warranty period. Unlucky Mercedes 211 car owners, who rarely operated their executive class cars and drove their 40,000–60,000 km, were forced to repair them at their own expense after the warranty expired. Spare parts for 211 bodies are very expensive. After reworking almost all the mechanical parts for the 211 bodies, the transmission became quite reliable.

Valve body for automatic transmission 722 9 series for Mercedes E, S and C class

The body electronic control unit 211 is, according to the new concept, located next to the valve body. An immobolizer is mounted in it, which controls the ability to start the engine and change gear, which greatly complicates the repair. The electronic control unit is the most problematic place of the new 722. They generate a lot of software control errors and firmware, solenoids, speed sensor malfunctions or breakage of connecting lines. The interruption of the communication lines of the solenoids on 211 occurs directly on the integrated microcircuit, which is impossible to fix - everything is so small that it is simply impossible to find or solder the interrupted fragment with the help of human hands and eyes. The control unit has proven to be so technologically advanced that hackers now have the ability to hack it and erase the binding to cars. Fortunately, such control units were discontinued after 2010 for the 211 body.

The main malfunction of the mechanical part is the destruction of the rubber coating of the first gear clutch piston, which leads to slippage when the selector is switched in first and second gear. In second place is the destruction of the planetary gear set and sun gear.

Torque converter for automatic transmission 722 9 series

Less problematic, but still of poor quality, is the torque converter. Or rather, its frankly weak rivets on the damping system. Diesel variations of Mercedes have big problems when the torque converter lock-up works, jerks and jerks when picking up speed, these problems arise due to the slip of the lock, which turns on immediately at the start of the movement,at this time, the motor torque is very large and it abrades it. Locking wear can be determined by the loss of dynamics at speeds over 80 km / h. When the blocking is erased, the automatic transmission control unit, based on the sensor readings, will clamp the power without signaling any malfunctions.

DO NOT SPEND MONEY ON REPAINING!
Now you yourself can remove any scratch from the body of your car in just 5 seconds.

This four-speed automatic transmission was installed on Mercedes Vito 638 and W168. Automatic transmissions Mercedes Vito 638 and W168 have two main faults. The first is the resolution of the sun gear bearings. The second main malfunction of the Mercedes Vito 638 and W168 automatic transmission is the failure of the torque converter lock and the subsequent breakdown of the oil pump and hub.

Automatic transmission ZF 4HP 20

Over time, automatic transmissions Mercedes Vito 638 and W168 wears out the turbine sliding support washer. Its remains contaminate and disable the valve body on the Mercedes Vito 638 and W168 automatic transmissions. The pressure regulator fails next and on the automatic transmission Mercedes Vito 638 and W168 3 and 4 speeds disappear.

In some cases, reverse gear disappears on automatic transmissions Mercedes Vito 638 and W168

Automatic transmission Mercedes Vito 638 and W168 is not serviced and does not imply an oil change. The owners of Vito 638 and W168 as a result regard these boxes as "eternal", but this, of course, is not so.

After the symptoms of abnormal behavior of the Vito 638 and W168 boxes become obvious, it is too late to go to the service and repair the Mercedes automatic transmission.

Automatic transmissions from Mercedes are of their own production and differ from their counterparts. They are considered difficult to diagnose and repair, especially new ones. It is often difficult to find a service station that will take care of repair work or carry it out properly. The repair itself costs about the same as for other automatic transmissions, but the cost of spare parts is always very high. Each Mercedes automatic transmission comes with a comprehensive instruction describing the principle of operation of the box, its mechanisms and basic repair procedures, which is a significant advantage. If the car owner has the necessary knowledge and the right tool, he can try to repair the automatic transmission on his own, but it is better to leave it on the shoulders of experienced professionals. Even if the motorist had solid experience in self-repairing the mechanical part of the car, he is unlikely to be able to repair the valve body on his own. You can only carry out an oil change on your own and take the box out of emergency mode.

Mercedes-Benz Mers 124 gearbox repair

Mercedes-Benz W124 Mercedes 124 E 2.6 REPAIR manual transmission part 1

Andruha 01 Dec 2011

Hello.
How to disassemble a box on a Mercedes-Benz 230 GE, 102 engine?

Andruha
Welcome to the forum!
Typewriter here:
c. rCP & CODE = 22
prescribe.

Hands with tools. It is possible with songs, it is possible in silence. It is possible with beer.
Aren't you afraid that your next topic will be “how to assemble the box”?
Look here:
showtopic = 50587
Good luck !

Say thanks

I do not like

Andruha 02 Dec 2011

And so we bought a used box, we will deliver it today. I think it's all the same to sort out my own.

Post has been editedAndruha: 02 December 2011 - 12:58

Repair of a Mercedes transmission (gearbox) can be major or partial. Repair of a box (manual transmission) Mercedes must be done only after initial diagnostics in a car service. Very often, a third-party opinion that the box needs to be repaired turns out to be erroneous. It can also be caused by the clutch, flywheel, and gear selector.

We offer two options for repairing a transmission (manual transmission):

Partial (local) repair of the Mercedes gearbox - we remove the box, disassemble it, wash and defect. Troubleshooting the box is the determination of the cause of its failure, indicating a specific malfunction.A list of spare parts for this malfunction is also provided. After agreement, we make repairs to eliminate the specific malfunction that the client has contacted. We do not touch the rest of the components and spare parts in the gearbox.

Overhaul of the Mercedes checkpoint - as well as with partial repairs, the box is removed and completely disassembled, washed and defective. In this case, we are not looking for a specific cause of the breakdown, but we are doing a complete defect diagnosis. All units and spare parts with increased wear, all bearings, oil seals and gaskets are determined and changed.

Repairing a manual transmission is a rather complicated procedure. Although twenty years ago, many car owners repaired manual transmissions on their own in garages, now this procedure has become much more complicated, since technological progress has stepped forward and the manual transmission device has changed a lot.

Before you start repairing, you need to identify the malfunctions of the manual transmission, and only a thorough diagnosis of the manual transmission can help in this matter. After its completion, it will be clear whether it is worth repairing the box or whether it will be cheaper to purchase a new one. It should be remembered that even if the cost of spare parts is 50 percent of the cost of a new box, repairs at a service station will easily “eat up” the remaining amount.

In order to identify manual transmission malfunctions, you need to conduct a thorough diagnosis of this unit. After all, starting the repair of the manual transmission, focusing only on your guesses and assumptions, you can waste time and money, changing one after the other the serviceable parts of the manual transmission.

Since the devices of any manual transmission are approximately the same (domestic cars and foreign cars), diagnostics are carried out according to the same algorithm. If your car is equipped with an on-board computer, then most of the errors associated with the operation of the manual transmission can be deciphered. It also happens that errors do not indicate a specific malfunction, but only indicate a general breakdown.

Breakdowns of manual transmissions can be different, but they can be divided into several varieties:Often, a simple flushing with oil helps to avoid problems with the manual transmission. There is no need to dismantle the box during this procedure. It is enough to drain the old oil and fill in the new one. After this procedure, you should start the car and drive at a calm pace. This procedure will help the new oil to penetrate into all parts of the gearbox. Sometimes it is necessary to rinse several times, as there can be a lot of dirt inside the box.Now the stores sell special reducing additives for oil in manual transmissions. Do not abuse them, as their action at the checkpoint is not always predictable. It is better to pour in the additive for a while, and then drain it along with the oil.When the manual gearbox starts to screw up, and the gears do not change or are knocked out on the go, you should urgently repair it. Driving a faulty car with a breakdown is not only unpleasant, but also unsafe. You can entrust the repair of the gearbox to professionals at the service station, but not all service stations are engaged in such work. In addition, the owner is often not allowed into the repair area, and unscrupulous mechanics can replace only one worn out gear, saying that they have overhauled the entire box.For those who know well the device of the car and have a garage with a set of tools, it makes sense to repair the manual transmission on their own. This will save you a ton of money and help eliminate the jittery riding style. For this procedure, you will need an assistant, since the weight of the gearbox is quite impressive.Before directly dismantling the gearbox, make sure that all cables, rails and levers are connected and move without jamming. It may also be that your vehicle jerked due to poor connection of the elements. In this case, it will be enough to connect or develop them.

If you decide to repair the manual transmission yourself, then it is better to replace all bearings and couplings immediately, since their real wear cannot be determined by eye. The bearings are carefully removed and the new gears are checked for runout. If the gear knocks on the shaft, then the shaft will also have to be replaced.

Assembly and installation of manual transmission takes place in the reverse order of disassembly. Nuances worth paying attention to:

When the clutch is installed, do not forget about the stopper;
Bearings are installed respectively grooves and grooves;
The box must be cleaned of dirt and the edges must be coated with sealant before closing the lid.

Repairing manual transmissions is a rather complicated procedure, but you need to remember that many garage craftsmen even sort out automatic transmissions, which is much more difficult.

Legendary and desirable for everyone German car Mercedes Benz amazes with its merits any motorist and master. However, no one has invented a perpetual and perfect engine yet. The same can be said when the gearbox is jammed or the manual transmission crackle suddenly frightens in the most unforeseen situations.

It should be noted that Mercedes manual transmission repair may not be necessary if shifting speeds are smoother. As you know, the German manufacturer likes everything in the car in its place. If the box is jammed, then first of all you should focus on your handling of the speeds. It is better to entrust the search for the causes of transmission faults to professionals. In the event that the manual transmission is jammed, the cause may be bearing wear. Also, poor-quality operation of the friction discs can cause the box to not switch gears. In this case, the pressure in the system changes, and the repair of the Mercedes-Benz manual transmission ends with the replacement of discs. As you know, sedans of the brand have been especially popular in Russia for more than one year. Mercedes-Benz 190,230; A-KLASSE, C-KLASSE: C 180, C 200, C 220, C 230 - are not inferior either; CL-KLASSE: CL 500; CLK-KLASSE; CLS-KLASSE; E-KLASSE: E 200, E 220, E 230, E 240, E 280, E 320, E 350; G-KLASSE: G 500; GL-KLASSE: GL 320; GLK-KLASSE; M-KLASSE: ML 320, ML 350; S-KLASSE: S 320, S 350, S 500; SL-KLASSE; SLK-KLASSE; V-KLASSE; VIANO.However, the torque converter must always be in good working order in any car. And it is worth remembering that even a timely change of the Mercedes manual transmission oil plays an important role in the high-quality operation of the transmission.

Not always, if the manual transmission does not switch speed, the torque converter is also to blame.In any case, manual transmission diagnostics Mercedes-Benz starts with the simplest analysis. If the manual transmission is stuck or a crunch is heard in the box, then this does not mean at all that the breakdown of the manual transmission is significant. Also, manual transmission problems are directly related to the clutch. The need to repair the Mercedes-Benz gearbox repair of the Mercedes-Benz gearbox is more often identified by the service center specialists during the tough operation of the car. So, replacing the Mercedes clutch can solve all the problems. If clutch replacement Mercedes-Benz did not affect the operation of the car, then manual transmission malfunctions may lie in the incorrect operation of the synchronizer or gear shift fork. It is worth noting that many fans of auto mechanics rely mainly on their own strength if the manual transmission is stuck or periodically the manual transmission jerks when driving during a switch. Experts, on the other hand, recommend that manual transmission repairs be carried out under the close supervision of professionals.

Among all foreign cars, Mercedes cars always stand apart due to their undoubtedly high characteristics. The owner has the right to expect the highest reliability from such a car. This also applies to the operation of the transmission. Cars of this brand are equipped with not only automatic, but also mechanical transmissions. And many car owners prefer them, for various reasons. The main task, the solution of which is assigned to the gearbox, regardless of its type and features of its operation, is the transfer of torque from the car engine to those of its wheels, which are leading. The gearbox of Mercedes cars does an excellent job with this task, and does not need to be repaired for a long time. If Mercedes manual transmission repair in Moscow nevertheless it was required, and you want its quality to correspond to the quality of the car itself - we suggest that you turn to the services of our service.

Repairing a transmission, whether automatic or mechanical, should begin with a diagnosis. It involves the use of visual and instrumental examination methods, as well as, if necessary, a drive test. In the course of diagnostics, the main malfunctions of the transmission are revealed.

The owner of a Mercedes car can suspect a transmission malfunction for several reasons. In particular, these are jerks of the car with each transition from a lower gear to a higher one. A similar phenomenon indicates the wear of the friction discs, and the need repair manual transmission Mercedes... The distance between the discs changes due to wear, which leads to a change in the level of pressure in the system. Such breakdowns are usually eliminated by replacing discs, sometimes it is necessary to replace certain consumable items as well.

Another cause of transmission failure is bearing wear. It occurs after a long and rather hard operation of the car.

As practice shows, subject to the rules of operation, Mercedes manual transmission repair may be required no earlier than after 300 thousand kilometers. Experienced specialists of our service will provide a full range of services related to the diagnosis and repair of gearboxes of Mercedes cars of any model and year of manufacture.

Probably the most complex mechanism in a car is the gearbox. When the gears start to "fly out" (when driving in a gear, the lever jumps to the neutral position), when the gear does not turn on well or does not turn on at all, something must be done. Repairing a box at a service station is not only an expensive procedure, but not every service station will undertake such work. You can repair the gearbox with your own hands, the main thing is to be careful, strictly follow the repair instructions and everything will work out. It is highly desirable to have an assistant, since it is very inconvenient to remove / put the box alone.

We drive the car into a hole, tighten the handbrake, and install supports under the wheels;
Remove the engine crankcase protection;
Remove the battery terminal;
In the cabin, unscrew the plate that secures the gearbox knob and remove the knob itself;
Drain the oil from the gearbox;
We unscrew the gearshift knob drive, and all the other bolts that hold the box. An assistant is needed here to hold the box;
Together we swing the box and slowly pull it out of the seat;
We place the box on a table with good lighting for further disassembly.

Unscrew the bell and the 5th gear cover:
We inspect the gear forks for wear, replace them if necessary;
We take out the shafts and remove the coupling;

We inspect for chips and wear of gears and splines;

Step 3. Replacing worn parts

When disassembling the manual transmission, it is better to replace synchronizers, bearings and gear couplings, even if the coupling or guide teeth have little wear: the factory wear tolerance is 0.2 - 0.5 mm, and in the absence of a special tool, it is difficult to determine the real wear;
We remove the bearings for replacement carefully using screwdrivers. It is undesirable to use a hammer. In roller bearings, the roller should not fall out of the cage, since a falling roller indicates wear or rejection;
Check the new gears for runout: if the new gear knocks on the shaft, the shaft must also be replaced;

Stage 4. Assembly and installation of manual transmission

We install the clutch of the 1.2 transfer, orienting the protrusions against the latches on the synchromes;
After installing the coupling, do not forget about the retaining ring;
We install roller bearings carefully, paying attention to the position of the groove and grooves;
We clean the box from dust and dirt, clean the pallet magnet and, having lubricated the edges with sealant, assemble the bell and the fifth gear cover.
We install it on the car and check if all the gears are included.

Almost everywhere now you can find a variety of advice on repairing and replacing an automatic transmission, comparing five- and four-speed, the praises of a six-speed, a battle between supporters of “joysticks” and “levers” and explanations of verbal neoplasms like “car mouse”. However, no one canceled the existence of a mechanical gearbox, and Mercedes manual transmission repair is still a hot topic in services. Let's first figure out what is the essential difference between automatic transmission and manual transmission, which of them is easier to repair, and why do Russians still prefer manual transmission or semiautomatic transmission?

Like the automatic transmission, the mechanics change the torque, this is the same multi-stage gear reducer, only it is switched manually. What are its advantages: the manual transmission provides high dynamics of vehicle acceleration and fuel efficiency; it is easy to maintain; the engine and transmission can be completely decoupled; no need for a separate cooling system. In general, if you find yourself in places where Mercedes repairs are carried out using a chisel and a screwdriver, it is better that you have a mechanic. Insofar as Mercedes manual transmission repair even in the most remote corners of the world, it is many times easier to implement than complex electronic automation.

Difficulties with the manual transmission for the owner begin when he gets into the car, where he has to think about changing gears. It is not for nothing that in some countries double licenses are required if you are going to drive a mechanic - it is considered that this is a much more difficult skill. In the USA and Canada, for example, the vast majority of service station clients cannot cope with a manual transmission, where the standard of driving is the ability to work with an automatic transmission. In Russia, Belarus, Ukraine and Pakistan, on the contrary, the ability to cope with a mechanical box is taken as a standard. We have plenty of cars with manual transmission, this is what determines the popularity repair manual transmission Mercedes: if in Europe such cars baffle the driver, our, Russian, motorists do not experience such difficulties.Compared to automatic and semi-automatic, manual gearbox requires regular oil changes and replacement of worn out parts. To understand that Mercedes manual transmission needsunder repair it is possible if the car starts to move in jerks, well, or if the diagnostics show critical wear of the units. This defect manifests itself when the friction discs or bearings are worn out, and even then, if the car literally worked for wear and tear, and the owner preferred a tough, sporty driving style. Generally, manual transmission repair YourMercedes may be required after about 300 thousand kilometers, which eliminates the need to constantly diagnose the transmission and regularly appear at the service station in order to repair it.The appearance of the gearbox was caused by the need to synchronize the engine speed with the wheel speed and select the optimal engine operating mode for various driving modes. What is the manual transmission?The manual transmission is part of the mechanical system that connects the motor to the drive wheels of the car. The function of the gearbox is to convert and transfer torque from the crankshaft of a running engine to the wheels of the vehicle.A mechanical gearbox is a set of gears that are located in the crankcase on several shafts. Changing the torque ratio is done manually using the gear lever. And the design of the automatic transmission includes traditional gears with planetary reducers, friction clutches and a hydromechanical transformer. The implementation of a complex kinematic scheme and the presence of various units make the repair of automatic transmissions much more expensive than repairing manual transmissions with your own hands.Do-it-yourself manual transmission repair begins with diagnostics. In the course of external examination and tests, a conclusion is made about the degree of damage to the transmission unit. The main symptom of malfunctions is the presence of noise or knocking inside the manual gearbox, as well as a violation of the gear engagement and engine oil leakage. In order to replace the deformed elements, it is necessary to dismantle the gearbox from the machine. After eliminating the detected defects and installing new elements instead of damaged ones, the gearbox is installed in place.The final stage of manual transmission repair with your own hands is to check the gearbox when driving at different speeds. It is worth noting that it is better not to do repairs with your own hands without work experience and trust professionals to do it at the stations. As a rule, in addition to high-quality repairs, good service stations provide a guarantee for the work done. Image - DIY Mercedes manual transmission repair

Image - DIY Mercedes manual transmission repair

It should be noted that Mercedes manual transmission repair may not be necessary if shifting speeds are smoother. As you know, the German manufacturer likes everything in the car in its place. If the box is jammed, then first of all you should focus on your handling of the speeds. It is better to entrust the search for the causes of transmission faults to professionals. In the event that the manual transmission is jammed, the cause may be bearing wear. Also, poor-quality operation of the friction discs can cause the box to not switch gears. In this case, the pressure in the system changes, and the repair of the Mercedes-Benz manual transmission ends with the replacement of discs. As you know, sedans of the brand have been especially popular in Russia for more than one year. Mercedes-Benz 190,230; A-KLASSE, C-KLASSE: C 180, C 200, C 220, C 230 - are not inferior either; CL-KLASSE: CL 500; CLK-KLASSE; CLS-KLASSE; E-KLASSE: E 200, E 220, E 230, E 240, E 280, E 320, E 350; G-KLASSE: G 500; GL-KLASSE: GL 320; GLK-KLASSE; M-KLASSE: ML 320, ML 350; S-KLASSE: S 320, S 350, S 500; SL-KLASSE; SLK-KLASSE; V-KLASSE; VIANO.However, the torque converter must always be in good working order in any car.And it is worth remembering that even a timely change of the Mercedes manual transmission oil plays an important role in the high-quality operation of the transmission.

Video (click to play).

Not always, if the manual transmission does not switch speed, the torque converter is also to blame. In any case, manual transmission diagnostics Mercedes-Benz starts with the simplest analysis. If the manual transmission is stuck or a crunch is heard in the box, then this does not mean at all that the breakdown of the manual transmission is significant. Also, manual transmission problems are directly related to the clutch. The need to repair the Mercedes-Benz gearbox repair of the Mercedes-Benz gearbox is more often identified by the service center specialists during the tough operation of the car. So, replacing the Mercedes clutch can solve all the problems. If clutch replacement Mercedes-Benz did not affect the operation of the car, then manual transmission malfunctions may lie in the incorrect operation of the synchronizer or gear shift fork. It is worth noting that many fans of auto mechanics rely mainly on their own strength if the manual transmission is stuck or periodically the manual transmission jerks when driving during a switch. Experts, on the other hand, recommend that manual transmission repairs be carried out under the close supervision of professionals.

Rate the article:

Grade 3.2 who voted: 85