car jumps at traffic lights etc - BMW Forum

banjo23 · 03-24-2009, 09:46 AM

I have a 525d sport automatic 57 plate. I have noticed every now and again that it will jump when I pull away from a standing start whilst the engine is running. I have had it checked out but no error codes have registered. Has anyone else had this problem ?
regards

saltshaker185 · 03-24-2009, 12:07 PM

what do you mean exactly by it jumps? do you mean it accelerates for a second with out you doing anything or do you mean it bogs down for a second then catches up to speed?

marti5 · 03-24-2009, 03:01 PM

Do you mean your auto box is giving you a kick in the back ????

banjo23 · 03-25-2009, 03:30 AM

Thanks for the replies guys. The car jolts for a 1/2 a second or so when I realease the footbrake and press accelerator. A kick in the back would be a good description. Mabye it could be the brakes being slow in release ? It can happen twice in succession and then not for two weeks.

AlpineSixAndSeven · 03-25-2009, 01:10 PM

Sounds like your auto trans. When was it last serviced if ever?

banjo23 · 03-26-2009, 02:34 AM

Hi,
The car is 1 year old, never missed a service.

denyo77 · 03-26-2009, 04:10 AM

I've got the same thing when my auto trans switches from 3rd to 4th gear

AlpineSixAndSeven · 03-26-2009, 10:40 AM

Hmmmm I know the older 5's suffered from a software glitch... I'll have to check service info but I would definatly go back to the dealer and talk to a service manager about it

denyo77 · 03-27-2009, 04:13 AM

but myne duznt has software
so could it just be the old tranny?