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Tech Tips

Does Your Customers AUDI Oil Appear To Be Leaking?

Here are the service procedures required for when oil leaks from the transmission pan gasket or the transfer case.

Models

  • 2011-2016 A4
  • 2011-2017 A5  
  • 2011-2017 Q5
  • 2012-2018 A6
  • 2012-2018 A7
  • 2011-2018 A8 
  • All have the 0BK transmission.

CONDITION

There is an oil leak from underneath the vehicle. The leak may appear to be from the transmission oil pan gasket or the transfer case seam.

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CAUSE

Although the leak may appear to be from the transmission oil pan gasket, there are multiple possible sources for the leak. The leak must be diagnosed to determine the actual location before any repairs are attempted.

SERVICE PROCEDURE

  1. Clean and remove all oil residue from the transmission and allow the surface to dry.
  2. Confirm the exact location of the leak by applying oil leak tracing powder to the suspected areas of the leak, including the sides. Do not use oil dyes in any Audi transmissions. You must check the weep hole of the double seal between the transmission and transfer case, which is located on the driver’s side of the vehicle (Figure 1). A leak from this location can appear to be from the pan gasket if the oil is not cleaned off and a proper diagnosis performed using oil leak tracing powder.
  3. If the transmission oil is leaking from the weep hole of the double seal (Figure 1), skip to step 6.
  4. If the transmission oil is leaking from a serviceable gasket or external seal, repair per the repair manual and this TSB does not apply.
  5. If the transmission oil is leaking from a non-serviceable part and the vehicle is covered under warranty, open an Audi Technical Assistance Center (TAC) case with pictures of the oil leak attached and your diagnosis information. Then contact the Audi Technical Assistance Center (TAC). If the vehicle is no longer covered under a new vehicle warranty or Certified Pre-Owned warranty, you may continue with your diagnosis and repair.
  6. An oil leak from the weep hole of the double seal is repairable and the instructions are available in service information.
  7. After repair, recheck for leaks to confirm the repair.

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