In detail: peugeot 307 do-it-yourself gearbox repair from a real master for the site my.housecope.com.
The Peugeot automobile concern is one of the main French and European car manufacturers, part of the Peugeot-Citroen concern. The history of the Peugeot brand began more than a century and a half ago. The first Peugeot cars were assembled back in 1892. Since the 70s of the twentieth century, Peugeot cars have consistently ranked among the top three European Automobiles of the Year. Peugeot specializes in the production of inexpensive but modern city cars. The Peugeot brand is well known in Russia. For its cars, Peugeot uses both its own automatic transmissions and the developments of firms specializing in their production: Aisin, Jatko, ZF.
Peugeot 308 with automatic gearbox
Peugeot 206 and 308 cars were equipped with four-speed automatic transmissions AL4 from the Peugeot-Citroen association. This automatic transmission has been produced since 1999 and is designed for front-wheel drive vehicles with engines up to 2 liters. The AL4 is still used in a wide variety of vehicles in a wide variety of versions on a wide range of vehicles from a wide range of manufacturers. AL4 is quite successful and independent development of French engineers. It was she who made it possible to popularize automatic transmissions in the vastness of Europe.
The AL4's weakest point is its cooling system. The AL4 cooling system uses a heat exchanger, and the transmission itself is constantly working at the extreme temperature regime. In the summer and in traffic jams, the Peugeot 206 automatic transmission overheats, the electrician and the valve body suffer from this. After a mileage of 80,000, the problem becomes very urgent and requires the attention of the car owner.
Video (click to play).
If the AL4 does not overheat, it will run almost forever. But if it is subjected to exploitation at too low or, conversely, high temperatures - expect trouble. Such a design of the cooling system carries such problems.
AL4 automatic transmission for Peugeot 206 and 308
The heat exchanger is also very sensitive to the purity of the oil. Dirt clogs its insides, and the pipes themselves and the heat exchanger simply stop cooling the transmission.
The heat exchanger itself is not at all cheap, and you can just get tired of the constant cleaning procedures. Therefore, the first thing that the owners of the Peugeot 206 do with these automatic transmissions is to change the heat exchanger to a radiator with a fan and all the necessary sensors. Moreover, the radiator can be supplied and reinforced.
The oil filter is disposable, and experts recommend changing it along with the oil as often as possible. Numbers from 20,000 to 60,000 kilometers are heard. Some even argue that it can not be changed. Indeed, it is possible, but only after 200,000 kilometers, the box will need to be changed along with the oil. Repair of automatic transmission Peugeot 308 and 206 in this case will no longer be relevant.
Repair kits are usually ordered original, and they fit all vehicles with this transmission. Together with them, during any repair or in the event of the release of one of the packages, all clutches are changed. A set of pistons is often ordered for them. Their rubber coating in these boxes dies pretty quickly.
For electrics, automatic transmission Peugeot 206 is among the leaders in replacing the solenoid pressure regulator. It is advisable to change them with any intervention in the box, they work in an overloaded mode and do not serve for a long time.
It also does not hurt to change the bushings. If they are already worn out, the solenoids will die one by one. Bushings are an important element of automatic transmission, they act as seals. If they wear out, they begin to leak pressure. As a result, the electronic control unit opens all the valves in the valve body to the full, driving a huge amount of oil through it. Which, in turn, abrades all the insides of the valve body with remnants of gearbox mechanisms and debris.The pump runs at maximum load, the solenoids die, and the clutches burn before our eyes. It is better to change the bushings to non-original ones, from Sonnax, they last longer.
The hydraulic block changes very often under these conditions. He really does not like overheating and dirty oil. If overheated, the metal of the hydraulic block can lead, and this will mean the need to replace it. Repairing a damaged one will be more expensive than ordering a new one.
If the clutches are burnt out, they are changed only as a set. If at least one bag is burnt out, it will saturate all the oil and then the rest of the clutches, which will also inevitably burn out.
Hydraulic block, automatic transmission AL4
Teflon rings are ordered less often - for drivers who loved slipping.
If the box was rolling on burnt oil, order a brake band.
A little less often the oil seal and pump seals fail. Usually wet seals indicate a tired torque converter.
Iron rarely flies and mainly touches the second speed clutch package.
Older cars may require replacement of the rear planetary gear set and rear cover. This automatic transmission is very simple and easy to repair.
Peugeot 406 cars were equipped with a four-speed automatic transmission 4HP20 made by ZF. This transmission has been used for a huge range of front-wheel drive vehicles around the world with engines up to three liters. This transmission is the main AL4 alternative for higher class vehicles.
Automatic transmission Peugeot 406 - very, very reliable. The main number of calls for repairs is associated with the Peugeot 406 automatic transmission with the replacement of tired sealing elements, gaskets and oil seals. The manufacturer claims that the oil in the Peugeot 406 automatic transmission is designed for a service life of ten years; the filter does not need to be changed either. And this is one of the few automatic transmissions where the manufacturer does not cheat, and the car can really drive its ten years before a major overhaul without changing the oil.
Rubberized pistons, oil seals and pump cuffs are the most common spare parts for automatic transmission Peugeot 406.
Usually, all transmissions arrive at the service with a tired torque converter. Together with it, the oil pump fails.
For iron, one of the weak points is the bearings of the drive gear caliper. Relevant for drivers who like to "squeeze" the car.
On the electrical side - a valve body clogged with dirt and shavings. Solenoids can live for about eight years.
Increased fuel consumption often indicates wear on the torque converter clutch. If you do not pay attention to this, then soon a small nuisance will turn into a chain of problems and expensive repairs.
The only thing that can actually kill this box ahead of time is aggressive driving. Not fast, but aggressive. Smooth acceleration even up to 240 km / h on the highway is not scary at all. But the gas to the floor at every traffic light and at every opportunity and then the brake is scary for any box.
Peugeot 307 and 407 cars were equipped with six-speed automatic TF80SC from Aisin. This transmission has been improved since 2001 and is designed for cars with engine displacement up to 4 liters. By itself, this automatic transmission is simply brilliant.
Valve body TF80SC for Peugeot 307 and 407
Engineers were able to fit it into the engine compartment and take a place equivalent to a manual transmission. Than engineers could play for a successful layout and weight distribution of the engine. This transmission is close to 100% efficient and shifts gears quickly and smoothly for maximum fuel economy and acceleration performance. At the same time, the shifts remain smooth, almost imperceptible, and the reliability remains at the level of the old unkillable automatic transmissions. The advent of this automatic transmission returned hydraulic transmissions back to service and made them competitive again, displacing fashionable robotic transmissions.
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Repair of the Peugeot 407 automatic transmission usually includes the repair of the torque converter. This is the only really weak point of the automatic transmission data.Like all six-speed and more. He's working too hard. And this automatic transmission still uses outdated friction linings, not bearings. True, the settings of this automatic transmission do not use the torque converter lock as actively as modern counterparts of this automatic transmission, which prolongs its life.
Repair of the Peugeot 307 automatic transmission is usually necessary if the automatic transmission has been running for some time on dirty and burnt oil.
The valve body suffers greatly from it, which is the second weak point of this box. The oil usually gets contaminated just from the torque converter, so these problems are closely related.
Like all automatic transmissions, Peugeot products are highly complex mechanisms. Do-it-yourself repairs will require experience, knowledge, the necessary tools and equipment. However, on the AL4 transmission, for example, many European masters learned to repair automatic transmissions.
