Question about BMW Cars & Trucks
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Posted on Jan 02, 2017
take the bulb back out have someone sit in car apply brake get your self a circuit tester and check to see if this circuit is carrying efficient 12 volt current! some times in cold weather these bulbs get hot with long period of breaking and when released condensate and rust begins and you get what you have perhaps bad socket! this would be a ideal location to begin and probably end,
Posted on Jan 03, 2009
SOURCE: 2007 BMW 335i just had the
It means that the engine power has been reduced - either automatically when the brain of the car has detected a mechanical problem in the engine or you have engaged the rain mode.
Usually this happens when you use a low quality fuel. But i've stumbled on rare cases when the Vanos sensor valve was the cause. The only way to precisely tell which is expensive and implies a visit to a dealer.
Posted on Jan 26, 2010
Testimonial: "Thank you that helped alot!"
ok if these are error codes for O2 sensors then don't worry about the post-cat sensor. the pre-cat may affect gas mileage slightly, but won't stop your car. however, my experience says the DME or ECU what ever you want to call it can giive false readings if it gets wet..
are there any performance issue?
you might check the ecu/dme read below
the ecu compartment is under the windshield on the passenger side on E36
you gain acess to it under the hood....
this compartment gets wet, the ecu lays on a flat surface in that
the bottom side of the circuit board gets wet and starts corrosion.
remove the ecu, take the bottom plate off, clean the bottom of the circuit
board with alcohol and a soft tooth brush.
you should be able to see the signs of corrosion or conductive build up.
this gunk bridges solder points doing all sort s of wierd things to your
car, including false sensor readings from asc/abs controllers and other
all the way to engine failure and worst case burnt and shorted wiring
I'm on my 3rd ecu, took me and the repair boys a few years to figure this
BTW: i would get that ecu mounted above that flat surface, use some sort
of standoff to raise it so that it is not laying in the wet.
Posted on Feb 07, 2010
The relay under the hood may have gone out. We had the same problem on our 2007 Buick LaCrosse CX. The bulbs were fine, high beams worked, all turn signals and everything except the low beams turned on. Turns out the relay had gone bad.
Posted on Sep 07, 2010
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