Loose Audi ATF filter

Owners of Audi Q5 vehicles may experience an intermittent no-drive condition with the transmission placed in D or R. The vehicle may only be driven in 3rd gear in limp mode.

In rare circumstances, if the vehicle was in motion and the ATF strainer becomes loose, the transmission may go into limp mode and can only be driven in 3rd gear. Other telltale signs may include such things as in cold conditions, the gearbox shifts with a delay. In hot conditions, suction noises occur.

The following DTCs may be stored in the transmission control unit:

  • P0730 (transmission monitoring incorrect gear ratio)
  • P2700 (clutch A implausible)
  • P2701 (clutch B implausible)
  • P2702 (clutch C implausible)
  • P2703 (clutch D implausible)

Because of a design change, the ATF strainer can come loose from the guide of the ATF pump intake duct. As a result, air can be drawn in. Air causes the oil to foam, which prevents the clutches from closing completely.

  1. If the complaint can be reproduced, proceed as follows:

* Check the gearbox control unit for the afore-mentioned DTCs. If there are no faults stored but the concern can be duplicated, proceed to Step 2. If one or more of the DTCs are stored, proceed to Step 3.

  1. Check the ATF level per ELSA instructions.

* If the fluid level seems too high and foamy due to air mixed with the ATF, proceed to Step 3. If the fluid is at the correct level and not foamy, open a Technical Assistance Center (TAC) ticket and contact a TAC representative.

  1. Drain the ATF into a clear container and remove the ATF pan. Plan to re-use the ATF.
  2. If the filter was found in the bottom of the pan, proceed to Step 6.
  3. If the filter is still seated in the valve body, try to remove it with light force. When removed, if the filter seal remained behind in the valve body or is not fully installed on the neck of the filter, proceed to Step 6. If the seal is fully installed on the filter, open a TAC ticket and contact a TAC representative.
  4. Replace the ATF filter with a new filter. Make sure that the magnets in the oil sump are not stuck on the metal underside of the loose ATF filter and are not removed with the old strainer. The magnets must be reinstalled in the pan to protect the transmission from metallic particle abrasion in their correct locations.
  5. If there are complaints of gear shift quality after replacing the ATF filter, clear the adaptations in the test plan and perform the GFF (guided functions adaptation drive).



Oil strainer……………………...0B6 325 429

Set hex socket flat head bolts…..0B6 398 747

Oil pan gasket………………….09E 321 371 A


Oil strainer……………………..09L 325 429

Oil pan gasket………………….09L 321 371 A


Oil strainer……………………...09E 325 429

Oil pan gasket…………………..09E 321 371

Verify that the filter seal is fully installed on the filter neck and not stuck in the valve body.
<p>Verify that the filter seal is fully installed on the filter neck and not stuck in the valve body.</p>

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