ASMT - S-tronic(R) Transmission, Leaks From Transmission

35 0B5 7 Speed S-tronic, leaks from transmission

35 13 09

2028085/3

April 1, 2013

Supersedes Technical Service Bulletin Group 35 number 12-07 dated December 21, 2012 for reasons listed below.





Vehicle Information





Condition

Customer may report that there is oil leaking under the vehicle.

Technical Background

There are a number of possible sources for the leak, including:





^ Leaking from the oil pan seal (Figure 1).





^ Crack in the oil pan (Figure 2).





^ Leak between gearbox housing and intermediate housing (Figure 3).

Tip:
The source of the leak may be confused with 0- ring of drain plug.

Production Solution

Not applicable.

Service





1. Locate the leak by first thoroughly cleaning and drying the stained area. Then, apply talcum spray (or similar) to the area that was stained with oil (Figure 4).

2. Warm up the vehicle (test drive) and re-check for leaks.

3. If the leak is around the oil pan, remove the oil pan and check the gasket for imperfections or damage. If the oil pan is undamaged, only replace the oil pan seal.








4. If the oil pan is damaged (Figure 5), check the mechatronics for loose bolts (Figure 6). Replace any loose bolts and torque according to the repair manual instructions. Also, replace the pan and seal.

5. If pan is cracked as in Figure 2, and no loose bolts on the mechatronics unit are found, replace oil pan and seal.

6. If there is a leak between gearbox housing and intermediate housing as in Figure 3, reseal the case by following instructions in ELSA >> Repair manual >> Transmission >> S Tronic Transmission Internal Components �35 Gears, Shafts >> Removal and Installation >> Sensor Module with Transmission In put Speed Sensor -G612-, -G632-, -G676- and Circuit Board 3.

Note:

These instructions require transmission case disassembly. Audi Academy course # 950224 is required viewing before attempting repair service. Complete the course and the assessment # 950224B before attempting repair or warranty claim may be denied. The course and assessment can be found on the Audi Academy CRC site.





Tip:
Use caution when lifting or lowering intermediate housing to avoid damage to components (Figure 7).

7. Assemble according to the repair manual and check/correct the oil level.








Warranty





Required Parts and Tools

Additional Information

All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information.