BMW 5 Series engine keeps cutting out

Car: BMW 5 Series
Variant: 523 i Auto
Model Year: 1999
Categories: Running Rough, Starting & Power Loss
Hi my car seems to be cutting out often when driving, if not it almost looses power, and I have to keep putting my foot down to keep it going, im a bit worried becuase it s an automatic!
It has very recently had a major BMW service and hoped that this would sort the problem but to no avail!
I would be grateful if anyone had any ideas as to why this was happening and if it is a common problem.
Thanks
Posted: Jul 21, 2008 (16 years ago)
I have just posted a problem re my 5 series with a starting problem. I've been told by many people that the fuel pump relays are bad for failing. You get a carbon build up on the contacts which breaks the circuit. They are only about £6 and easy to replace. It may be that you are getting a bad contact while driving. It's worth a try!!
Posted Dec 18, 2008 (16 years ago)
It was working fine but now when i start to drive it does not speed up but when it gets momentum then it runs like any normal BMW. But the start is very slow and even when i press down the accelerator, it does not catch speed. in fact when it goes up hill, it gets slow. when stopped, i want to check if the problem is with accelerator, i press down the accelerator and engine sounds fine, strong but if i press accelerator too much it starts giving odd smell of burning. It also keeps cutting out and i have to keep my foot on the accelerator. My friend says it`s clutch. but i doubt if its clutch then i should have problems ahile changing geras that i don`t have. gears change very smoothly. Can you please guide me?
thanks.
Posted Jul 4, 2009 (15 years ago)

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