VW transaxle Technical Articles

Tech Article – Swing Axle Tranny Removal and Replacement

Parts you might need – link to category Transaxle Parts

Note: You can remove and install the axle tubes and axleshafts with the transaxle installed in the vehicle, but it s not recommended. In order to determine the clearance at the inner end of the axle tube, you need to be able to swing the axle tube around freely. That s hard to do with the transaxle installed on the vehicle. It s also hard to install new gaskets or shims from under the vehicle without damaging them. Lastly, it s really hard to prevent dirt from getting into the differential.

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Parts you might need - link to category Stock Transaxles

There is knocking noise at low speeds.

The driveaxle constant velocity (CV) joint(s) are worn.

Noise most pronounced when turning.

There is differential gear noise.

Clunk on acceleration or deceleration

The engine or transaxle mounts are loose.

The differential pinion shaft in case if worn.

The damaged driveaxle CV joints are worn.
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Fluid leakage

The automatic transmission fluid is a deep red color. The fluid leaks should not be confused with the engine oil, which can be blown onto the transaxle by airflow really easily.

In order to pinpoint a leak, you ll need to first remove all the built-up dirt and grime from the transaxle housing with degreasing agents and/or steam cleaning. After this, drive the vehicle at low speeds so the airflow will not blow the leak far from its source. Raise the vehicle and determine where the leak is coming from.

The transaxle fluid brown is or has a burned smell.

The transaxle fluid is burned.
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