STUBBORN ABS SENSOR RENEWAL

In a sort of unofficial Part 8 of our Audi A4 Convertible project, we’re outlining some of the later issues we had with the car, mainly misbehaving ABS and traction control lights.

This was down to two things: one was a defective nearside rear ABS sensor that diagnostics brought up - but before that we had a problem with a traction light that kept flickering on. This turned out to be the aftermarket MAF (mass air flow sensor) we had fitted to replace the dead original. Once we’d binned that off and fitted a Bosch unit, the problem was solved and the Audi went better as well. Faulty MAF’s can be hard to diagnose as a defective - there is often no fault code. You can unplug the MAF and if the car drives much better you’ve probably found the