Oil Distribution
- There are two different versions regarding the lubrication of the final drive and the self-locking center differential.
Courtesy of AUDI
- For transmissions with a shared oil system, the oil chambers in the front final drive -3- and in the transfer case -1- are joined via the protective pipe -2-.
- The side shaft runs in gear oil in the protective pipe -2-.
- Transmissions with a single oil system do not have an oil overflow hole -arrow-.
 Courtesy of AUDI
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- A transmission with separate oil system can be identified by the oil overflow hole -arrow-.
 Courtesy of AUDI
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- On transmissions with separated oil system the protective pipe is free of oil, the transmission as well as the front final drive are sealed with a gasket to the side shaft.
- Always pay attention to the different control and filling specifications.
- Refer to GEAR OIL, DRAINING AND FILLING