Hi All
I've just purchased a 2010 Q7 3.0 TDI and am really pleased with it. That is despite It braking down before getting home. After replacement injectors and coil packs (I've been told by the garage) it seems to work fine. The only odd problem is that between 1800 and 2000 rpm, particularly in 8th gear, the engine has a resonance type sound. It is like the engine is quite a bit noisier under load and when lifting off the noise goes away. Outside of these rpm all is ok. Any advice would be great or is it just characteristic.

Thanks

Edward