Hi there

Just came out of a 2 year nightmare with Mercedes and decided to purchase a 2010 q7 3.0 tdi. Since the first day, been experiencing a knocking noise. Its been in twice already and still nothing. They have today advised that the knocking noise is fuel hitting around the tank. But this sound is way much more than that. I have presented the faults twice and today when visiting the dealer, they fuelled it up with diesel and said the noise stopped. Well not really, just quietened it down.

Please can someone assist and tell me that this is not normal right? I questioned if the 60k model in the window did the same thing and they could not answer! was about to take out a 2012 model and they changed their mind and advised they will check with Audi Technical.

I present the fault from standstill, rev to 1500 rpm and let go, then clunk/knock. Then press brake and another slight clunk/knock. Noise Is from underneath the car, around rear foot wells but when I brake, Im sure I can hear a caliper.

Your help and assistance will be much appreciated.

Or do I just give it back and walk away?

Regards