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A follow up to my previous post. Since transmission was failing I park the car until I could find a good used one as the value of the car did not justify doing a rebuild. After much research and after I found a low mileage used transmission (EKD code) I have found that there seems to be a built in defect in these transmissions. The problem is with the bushing that connect the pump to the torque converter. This will eventually spin off from the pump to the torque converter and after time will ruin the transmission. It even started doing this on the used transmission but did not do damage to the internals. It is not a matter of "if" but when the tramsmission will fail. The 2001 MY A6's came with two codes, EKD and FAS. I do not know of this was the problem in the FAS as well but it effects all EKD transmission made by ZF. Also, the secondary air problem I referred to earlier was not from carbon build up. I removed the intake and found there was little carbon build up for the amount of miles (151K). Only two things that it can be is a bad air pump (vacuum seem fine) or bad celonoid switch.Report it
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