This procedure was done after I swapped a new rear sport differential into my 2015 Audi S7. I swapped over the original pump to to new differential so no coding was needed. This procedure should be done if you drain and fill the ATF side of the sport differential. Check fluid level after this procedure. No need to perform this if you're just changing the gear oil side. Not liable for any damages if you perform this incorrectly. Take it to a professional shop if you're not sure what you're doing.

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