Gearbox Repair — Basics (Mercedes-Benz C-Class W201)

Manual transmission repair is a difficult job for a DIYer. The repair requires removing and installing many small parts. Numerous gaps must be accurately measured and, if necessary, changed using selective spacers, spacers and spring rings. Therefore, if there are problems with the transmission, then even a car enthusiast can remove and reinstall it, but it is better to entrust the repair to a specialist. You can try to get a rebuilt transmission; in any case, the time and money spent on repairs will almost certainly exceed the cost of the rebuilt unit.

However, this does not mean that an inexperienced car enthusiast cannot restore a gearbox at home. To do this, you need to have a set of special tools and work slowly, step by step, so as not to miss anything important.

Tools needed for the repair include: circlip pliers, a bearing puller, an impact driver, a set of punches, a dial indicator, and possibly a hydraulic press. A large, sturdy workbench with a vice or a transmission stand is also required.

As you disassemble the transmission, take careful notes on how each part comes off, where it fits in relation to other parts, and how it is held in place.

Before disassembling the transmission, it is a good idea to have some idea of where the fault is located in the transmission. Some problems may be associated with specific components of the transmission, making it easier to check and replace parts. Information on possible causes of failure is provided in the Troubleshooting section at the end of this book.

[Material borrowed from an online resource: mercedesman.ru]