Improving Audi Rubber Plug and Spring

Oct. 16, 2023
This bulletin applies to 2016 Audi A6 and A7, 2015-2016 A8 and 2017 Q7 vehicles. DTC P164D00 may be stored in the ECM (oil pressure switch for reduced oil pressure malfunction).

This bulletin applies to 2016 Audi A6 and A7, 2015-2016 A8 and 2017 Q7 vehicles. DTC P164D00 may be stored in the ECM (oil pressure switch for reduced oil pressure malfunction). One or both of the following warning lights may be displayed: the red oil pressure warning light and/or an oil warning “shut vehicle off.”

The rubber oil drain plug within the oil filter housing is out of position or has insufficient pre-tension. Audi now offers an improved rubber plug 06E115475 and spring 06E115489.

Before proceeding, confirm the condition:

- If the red oil pressure warning light is not on and the DTC cannot be reproduced, replace the rubber plug and spring.

- If the red oil pressure warning light is on and the DTC can be reproduced, perform an oil pressure test as instructed by GFF, with oil temperature at 80 degrees C (176 degrees Fahrenheit).

- If oil pressure is above 0.7 bar after the test, replace the rubber plug and spring, then re-check oil pressure. The oil pressure must be above 1.4 bar at idle.

- If oil pressure is below 0.7 bar after the test, contact TAC.

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