The weather has been getting warmer, albeit today was rather cool.

I have noticed when the car is warm that there is a vibration (at idle) that intensifies as the car gets warmer and the longer it's driven. The vibration doesn't show up when it's first started and probably isn't apparent even within the first 10 minutes or so, but on my way home at night when it's above 70F outside I notice at every stoplight I hit the vibration gets worse. After I get moving again nothing feels wrong, but when I get caught at a light I get this nasty vibration.

I'm wondering if this is a sign of trans pump or torque converter failure?

Any clues? Anyone?

Thanks for any advice

Steve A

__________________
Steve A
92 W140 OM603
97 VW Jetta TDI
90 Passat variant TDI 6 speed MT
94 Chevy K1500 6.5TD
05 E320 CDI
+ others

Start with the simple things.. how are the motor mounts? Idle speed is lowered when the engine gets up to temp, and lower engine speeds make more vibration.

-Jason

__________________
1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.

motor mounts are where I would look.
also possible are the transmission mount, but it's not as noticeable only from idle...

Motor mounts was the first thing I checked and it doesn't appear there's a problem. As for idle, my idle never changes regardless of temp, that is if you can trust the tach for accurate reporting.

The problem doesn't appear during cold weather regardless of engine temperature...which is odd I know but still that's what's going on.

Thanks for the advice guys, I'll look at the motor mounts again but I just don't get the impression there's a problem.

Steve A

__________________
Steve A
92 W140 OM603
97 VW Jetta TDI
90 Passat variant TDI 6 speed MT
94 Chevy K1500 6.5TD
05 E320 CDI
+ others

how did you check the mounts? the bell shaped mounts really need to be removed to check them out well. it's only two bolts, (although they are REALLY tight bolts!) I'd check the driver's side first.