2002 BMW 318ti - engine keeps cutting out while driving
Engine has started to cut out without warming. The hazard warning light (the one that comes on when you turn the ASC off) also the battery and oil lights are on and are red. The car will not start for a while (sometimes hours later).
Not the battery or the alternator, and will start every time when cold.
Will now only travel some 500m then engine will die.
Re: 2002 BMW 318ti - engine keeps cutting out while...
Right have a check down your local garage if they do diagnostics be about 15-30 pound well worth it tells you a hell of alot more then wht i can say here but on e46s any lil prob tht asc light wil come up its warning you cars not right beware in other words. ive had it on rear abs sensors the asc light is just warning but have them plug it in to diagnostics tht will tell you all about it and whts going on prob sensor somewere let me no how you get on..
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The warning lights on the dash will come on when the engine dies. If it dies and starts up like you turned the key it could be a relay or other electrical problem. May be tough to find if you can't test components while it is not starting. I assume the check engine light is not on when the engine is running.
Hey, sounds like a vacum leak - common on those engines. when engine is on idle open boonet and lissten out for any whoosing noises near the rear of engine. There is a breather there that can be changed ( black round ) or check the pipes that connect to it coming from rocker cover for damage.
When your ASC light is on this is to let you know your Automatic Stability Control system is switched off press the ASC button Till light is off /ASC is on this works with your rev limiter and should stabilized your idle. If the problem persists have your throttle control unit checked as thi can trigger the ASC light as well and may also activate the ABS light if not fixed
Have someone handy to press the gas pedal for you after the engine has warmed up well; best if driven.
While you listen at the exhaust pipe, have your helper increase the revs slowly and note whether the exhaust note changes to a hiss, instead of the sound of an engine firing.
You may have a decayed catalytic convertor and when they come apart inside, they can clog mufflers and resonators (the second, smaller muffler).
I've had this happen on more than one car and when it happened on a Fiat Strada years ago, since the routing of the system was fairly straight and made of heavier gauge stainless steel, I fired two shots with a .357 magnum into the tailpipe.
Never had another problem with it.
This happened to me with my Ford Focus. Diagnostic with onboard computer said key problem, as in the chip in the key had sent incorrect alarm signal and that was why engine had cut.
Solution? New key from car dealership. Problem solved.