In detail: steering rack audi a4 b6 DIY repair from a real master for the site my.housecope.com.
On the Audi A4 of the first and second generation, two versions of rails were installed - made by ZF and manufactured by Koyo. It is impossible to say which specific option you have in advance. You need to look in and see who the manufacturer of your rail is. Accordingly, these rails have various typical faults.
At repair of the A4 steering rack Corrosion is the first thing that ZF has to deal with. The metal rack of the ZF steering rack is highly susceptible to corrosion. When even a small fistula forms in the anthers, outside air enters the steering rack and brings moisture. Moreover, in steering rack A4 corrosion appears. Oil seals cannot work on a rusty surface for a long time and begin to leak. As some say: the steering rack "ran".
The shaft-rack damaged by corrosion is restored at Gidrolab without any problems. We have all modern methods of shaft-rack corrosion protection. Minor corrosion (no more than 0.2 mm deep) is removed free of charge. More details about corrosion and methods of its elimination here: Corrosion of the shaft-rack.
Corrosion in steering racks A4 made by ZF can also damage the shaft teeth. If the teeth in the steering rack are severely rusted, then they can no longer be operated and it is dangerous. The shaft will have to be changed. As a last resort, we have spare shafts in stock.
Repair of a steering rack A4 from Koyo has very different typical faults.
The main trouble of these rails was the backlash and wear of the distributor crankcase. The situation when the oil turns black very quickly, the pump deteriorates, and the A4 steering rack begins to wedge on a cold car, very often on A4. Moreover, if you have steering wheel wedges on the Audi A4, then you almost certainly have a steering rack made by Koyo.
Video (click to play).
The Gidrolab company is one of the few in Moscow that successfully and inexpensively restores the distributor crankcase when repair of the A4 steering rack according to its proprietary technology and gives 13 months warranty .
The distributor crankcase cranking method using proprietary technology and special materials does not just prolong life steering rack A4 , but makes this knot eternal. Everything else can break, and the crankcase will not wear out again!
Backlash is the second problematic point of the A4 steering rack made by Koyo.
In addition to the A4 steering rack bushings, backlash is formed in the cracker, which presses the teeth of the shafts to each other. The cracker on Koyo racks wears out quickly, after which it begins to move up and down in its crankcase and ceases to rigidly hold the rack shaft in the vertical direction.
Repair of steering racks A4 With the wear of the rusks and its crankcase, the Gidrolab company is made using proprietary technology. This technology guarantees excellent fixation of the shaft-rack against vertical movement and the complete absence of backlash after repair.
More details: "Wear of a biscuit and its crankcase". For all work - 13 months warranty !
At repair of steering racks A4 with the wear of the distributor crankcase, unfortunately, the question arises about the harm that the aluminum that has been erased from the distributor crankcase has done to the pump. It does not disappear anywhere, but accumulates in the power steering system. To eliminate the consequences, Gidrolab will flush the power steering system from metal particles in the oil and replace the tank.
Repair of a steering rack A4 in the Gidrolab company does not cause difficulties and is very well developed. Come and see for yourself!
One of the main components of the car is the control system. Almost all foreign-made cars are equipped with automatic control of malfunctions.Thanks to him, the operation of the vehicle will be blocked when serious malfunctions are detected. If the steering rack breaks down, the ECU will generate an error, further operation of the car will be impossible until the problems have been eliminated. The specialists of our service center will help you to solve them in a short time.
Audi A4 cars represent the middle class. Power units of the longitudinal type are installed on them, in addition, they can have four-wheel or front-wheel drive. The basic configuration provides for the presence of a power steering and a special system that stabilizes the traction of the power unit.
The steering rack of this vehicle is a single well-coordinated mechanism, and the car's control unit immediately reports malfunctions in its operation. When an error signal is received from the sensor that controls the steering angle, the car will not move.
Vehicles from German manufacturers are reliable and easy to drive. But nothing is eternal, and they sometimes fail. Signs that should alert the car owner and force him to seek professional help, as a result of a malfunction of the Audi A4 B5 steering rack:
while driving, there is a beating of the steering wheel, this feeling is enhanced on an even road surface or minor bumps. This occurs as a result of improper functioning of the steering rods;
after parking, oil stains remain under the front of the vehicle. The reason for this is leaking power steering or oil seals. The hydraulic booster experiences the greatest loads when turning the wheels to extreme positions, it is then that the greatest pressure is created in it, which leads to the formation of leaks;
there was a decrease in steering performance: the car does not obey it, does not immediately respond to its turns. Or the steering wheel becomes difficult to turn. This situation indicates a problem with the rail. There are also extraneous noises under the hood in the front of the car.
In the event that you notice at least one of the listed signs or there are some suspicions of improper operation of your vehicle, do not delay contacting a specialized service center. Run advanced diagnostics. This will help prevent the creation of accidents. In addition, a timely found and repaired malfunction will cost several times cheaper than a complete restoration of the control system.
Even the highest quality and most reliable equipment can break during use. All units in the car are interconnected. For this reason, vehicle repairs must be carried out by highly qualified specialists.
The reasons for the failure of the steering rack can be:
long-term use and sufficiently large vehicle mileage;
penetration of air or water into the system;
violations during replacement of steering assemblies;
perforation of the hydraulic booster or malfunction of the connecting elements;
During the repair, non-original, poor quality parts were installed.
To repair the steering rack of the Audi A4, it is required to perform a preliminary diagnosis of all nodes of the control system. It allows you to determine whether it is worth dismantling the rail for a more thorough check at a special stand.
If a malfunction of this unit is identified, the master completely disassembles it in order to troubleshoot and replace faulty parts. If the rack shaft and other elements are damaged by corrosion to an insignificant extent, our masters will be able to restore the steering rack of your Audi A4. If the degree of damage is high, it will have to be replaced.
Our masters with the help of professional equipment in your presence will conduct:
full diagnostics of malfunctions of the steering mechanism. Check the tightness of the assembly elements when the pressure rises, using a special stand. If a leak is detected, the damaged seals will be replaced;
the steering wheel will be thoroughly inspected and, if necessary, restored. If there is too much free play, its cause may be a malfunction of the steering column cross;
the performance of the hydraulic booster will be checked. If necessary, the gaskets will be replaced, and if necessary, the power steering will be completely replaced;
for a steering rack with an electric power steering, our masters will carry out computer diagnostics, which will help to identify and fix problems.
If the inspection reveals a slight deformation of the rail or reveals cracks on the anthers, our craftsmen will carry out work to restore the damaged elements. The repaired units will be installed according to their regular places and work will be done to adjust them.
If any of the components of the control system is badly damaged, you will be offered to replace it with a new original or repaired, used one. You will also receive our guarantees for such parts.
We must not forget that on Audi A4 cars, the rail must be adjusted not only after dismantling and installation, but also without fail after repair measures.
still in the process of writing This report consists of materials madeiva99380798(for which many thanks to him.) Well, and my ad-libbing. I ask you not to pay attention to the arrows and instructions on the borrowed photos, because info taken from this post - https://my.housecope.com/wp-content/uploads/ext/1317/showthread.ph. = 1 # post2068729
Background. For some time now, I began to notice that with a sharp acceleration, something began to knock on the right side. Moreover, it does not depend on a straight line or with inverted wheels. And recently, the flow of the reiki itself was added Story.
Since walking is not quite hunting, I began to look for the rail in an inoperative state. The guys loaded up exactly the same as mine ZF 7852501328 VAG number 8d1 422 066 F.
At the Audi forum, at one time they figured out for a long time which repair kit is suitable for this rail.
In the end, this is what happened
Nameplate on the rail, indicating its affiliation to the manufacturer and the original VAG number
this is how she looks on the car
It turned out that the tubers were already engaged in the bulkhead of such a rail, let me think and I'll try
