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Just an update on the too lean too rich matter. Audi established it as a faulty catalytic converter. Had an RAC warranty which covered most of the bill but car was in Audi for at least 2 months

Hi Josh, thanks for your reply, Its currently with Audi Bolton and they cant seem to get to the bottom of it. The lambda sensor was direct replacement from tps so genuine part fitted. Ive also had the pcv valve and spark plugs replaced recently Audi are claiming they are waiting for further instruct...

Hi Guys, anyone come across this before?
Audi RS4 2018

Bank 1 sensor has been replaced. Showing as running too lean and too rich at the same time

Hello all, just joined the RS4 and picked up one in Sonoma Green, Just wanted some advice/guidance:

Rear discs and pads need replacing - Zimmermanns the right choice?
Tyres currently Hankooks 275 30 20 - Contis or Michelin the best shout?

Any help appreciated.

Thanks

Alvin