Question about 2003 BMW 5 Series

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Intermittent not starting

This has happend twice we have been driveing the car stopped the car for 10 or 15 min tried to start it iwont start leave it for 45 min approx and it will start its a bmw 330d 02

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  • bankart Jul 04, 2008

    Had same problem -- seemed to be worst in warm weather. Began as a 30 to 45 minutes wait before it resolved itself, ended up taking several hours before starting again! Diagnostics at the dealer are no use if the car won't start. When it DOES start, diagnostics finds nothing wrong. Only solution is to get an auto electrician on the case when it's playing up.

    I eventually found that the starter motor power feed cable was burning through as the starter needed to be reconditioned. That improved the situation but still didn't entirely solve the problem. Recently had a relay fitted to ensure the starter motor gets full 12V. Can't guarantee that's the solution, but it's started every time since then.



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BMW engine is aluminum engine. Watch out , don’t let the engine over heated too much.

According to your explanation, sounds like your engine is over heated, I like to know , how hot the engine was when your BMW stalled and you have to wait around 45 minutes, after you started your car again and how long can you drive and get it hot again.

Any aluminum engine, we must watch out very carefully, sometimes just one time over heat, the engine will be damaged very badly, as soon as you have over heat problems, you have to check the following items.

Hose, water pump, fan belt connect to water pump, thermostat, coolant level, oil level, electric cooling fan should work normal, Check your radiator circulation, timing etc.

Check the coolant in the radiator see if there is oil,
Check the oil cap and oil stake see if there is white steam, if you see something like what I mentioned, that possibly your engine has blew up the head gasket or the engine cracked already, hope not, but you have to watch out and check it right away.
Sometimes during the summer time, if you feel your car is hot or you smell burning coolant and do not keep driving, maybe only driving several blocks or several miles, you are going to completely damage your engine.
From my Union 76 Service Station long time experience, I had so many cases about the aluminum engine damaged by over heat even my own BMW 530i.

Please check your car as soon as possible. Good luck.

Posted on Jul 08, 2008

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Sounds like engine management chip fault,may be worth getting checked at dealers as will show on diagnostic machines hope this helps andy

Posted on Jun 22, 2008


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