Vibration/shuddering

[giw12]

Hi All

The latest mystery problem.....2006 D5 shudders under acceleration, but only intermittently. Seems to be more of an issue when the engine is warm.

Goes away when at a constant speed.

Then, when I decelerate (i.e. take my foot off the throttle), the vibration gets worse, especially at 30mph and under.

I also had a couple of clunks but they seemed to have stopped.

My indy has looked but no issues found. Clearly there's something!

Also, the car is increasingly whiny at motorway speeds.

Could it be a wheel bearing? Or engine mounts?

All help much appreciated!

[john langrick]

I assume you have checked wheel balance and wheel nuts tight? It could be a balance weight gone AWOL.

The wining noise could be other unrelated issues.

If the shuddering was at just over 50mph on accelleration then suggest torque converter but not at the speeds you indicate.

I would first suggest swapping front wheels for rear then take it from there.

Hope this helps.

John l

[giw12]

Yup...all covered and no issues.

[Danielpsmith]

Shuddering maybe the injectors I’m on another group and someone had similar he just posted yesterday after weeks of investigation turned out it was the injectors and now all smooth.

[giw12]

Originally Posted by Danielpsmith

Shuddering maybe the injectors I’m on another group and someone had similar he just posted yesterday after weeks of investigation turned out it was the injectors and now all smooth.

Hi Daniel
That was the original suspicion but no issue there.

[giw12]

Possibly driveshaft related......will update next week.

[giw12]

Near side driveshaft replaced.....all good!