Juddering during acceleration

[Mike Burman]

Hi everyone, just joined and would like to ask a question regarding an issue my Audi has recently developed. I have an A4 3.0 tdi B7 auto and during gradual acceleration from around 20-30mph there is heavy juddering from the engine. I'm assuming it could be a driveshaft or gearbox issue. It doesn't do it when I accelerate hard but only during gentle acceleration or just cruising around that speed. I haven't driven the car outside of town yet to see if the problem continues at higher speed and rpm. Any suggestions would be very welcome.

 

[Sygh2k]

Check your engine/gearbox mounts

 

[Mike Burman]

Thanks, I'll check them out.

 

[Alpinachris]

Check your engine/gearbox mounts

Wondering? What is the process for checking both mounts?

 

[Sygh2k]

Looking from underneath check for cracks damage in the bases, the threaded stud coming out tends to break away. Also look to see if they are leaking/lost fluid, i think its red but cant remember.
If theres nothing obvious you could try carefully moving the engine away from the mount see if its easy or not? Also check the front snub mount, this should give you an indication on wear/movement

Some further info, google it and you'll find plenty
https://www.audi-sport.net/xf/threads/replacing-engine-mounts-diy-job.249442/

 

[Alpinachris]

Looking from underneath check for cracks damage in the bases, the threaded stud coming out tends to break away. Also look to see if they are leaking/lost fluid, i think its red but cant remember.
If theres nothing obvious you could try carefully moving the engine away from the mount see if its easy or not? Also check the front snub mount, this should give you an indication on wear/movement

Some further info, google it and you'll find plenty
https://www.audi-sport.net/xf/threads/replacing-engine-mounts-diy-job.249442/

Think im going to have to get under,and take a look,and get them checked out.