Clunking Final drive or LSD should not be standard....
You need to identify the source...... if the later it's a sign of failure of the unit, plates or belleville springs, known problem due to poor design, if your runnig wuth the heavy BMW final drive then there are few if any other options, however if your running the Sierra final drive you can swop the Titan for a better designed plate LSD thats proven and silent - Tracsport
Are you still under any warranty with CC ?
The car is only 2 weeks old in my ownership so has 11 and a bit months of CC warranty left.
I have only driven the car 5 times, albeit each for around an hour.
I will try and get to a meet ASAP so I can get some advice off other owners unless there are any experts not too far from Redhill/ Reigate?
I don't want to take anything back that's normal and waste anyone's time.
Andy Belcher of Tech 7 is in Redhill & comes highly recommended.
Depends on what one means about the clonking noise ?
3. Occasional Clunk
Have you checked the anti roll bar droplinks for tightness or play? Removing them and greasing the ball joints keeps them quiet and they last a lot longer too. It only takes 1/4 of a turn to allow them to move and knock. It could be when the car squats under acceleration.
I have an occasional clunk on my 420R as an inner rear brake pad sometimes rattles over bumps. They have yet to bed in properly though. Also check that the boot floor is secure.
I've heard Andy Belcher's name mentioned quite often. There seems very little information on how to contact him and what he offers. I believe he works in Redhill which is only 5 miles from me.
See here. Very knowlegable 7 owner, has a touring as well as a track 7. Knows his onions as they say
Member since March 1998
Don't forget that the diff is fairly solidly mounted only a few inches behind your left elbow the other side of a thin bit of carpet and aluminium- so perfectly normal backlash in the gear mesh, driveshaft splines etc could be heard as a "clunk" - such a clonk from a softly mounted diff in an isolated sub-frame several feet away under the carpet, sound deadening and floor of a BMW or Sierra would be inaudible.
I'm such an idiot, completely forgot, I know Andy's son Tim through my local pub although haven't seen him for a while. He works for DPR motorsport. Maybe I will take him out and he can let me know. I believe Andy might be moving from Redhill as I think their house sale has gone through for info.
Thanks for all the replies