20 Most Recent 2004 BMW 3 Series - Page 4 Questions & Answers

It could be several reasons...1. make sure you dont have to bleed the coolant system, on some cars you have too, because there is air in the system, and the car will overheat..2. Your waterpump maybe bad also..3. Double check your coolant temp sensor, and or coolant temp switch..maybe faulty..4. Check your radiator cap...seal could be bad, and not sealing correctly...Question..How long does it take before it overheats...and are you getting any white or grey smoke out of the tailpipe? If so, then your head gasket is blown...Goodluck

Hi Adam, I believe the most cost effective action for you is to get the management system designed for your engine. When doing so it may well be required that you also purchase the wiring harness that goes with the replacement unit. Regards John

uerepean cars have only one origanal dealer and that is BOSCH

is a hard one but I would try and get to starter motor and connect a positive lead from a backup battery to positive side of starter motorthis will give you power

HAVE THE ENGINE CODE READ. IF THE INDICATION IS POINTING TO EXHAUST TREATMENT. ie. EGR, etc. have the fuel system cleaned out. BG 44 OR SOMETHING MORE POWERFUL.

It's hidden waaaay back in the glove box. There is a plastic panel with 2 twist screws. Open the panel and you will see the fuse box. It's a tight fit and you might need to use a pair of needle nose pliers to get to the fuse you're looking for.

Bank 2 sensor 3 [HOS2] .

The fuse box is located in the glove box. You can get to it by flipping two white tabs on the top of the inside of the glove box 90 degrees, then pull it down. The cigarette lighter is fuse 47. Here is a link to the fuse box schematic.

Yes there are online manuals just Google it. First thing to try is

Get some electronic switch cleaner spray and use on the switch see if dirt and dust is an issue.

OR

Try changing the fuse that controls the window switch

If these dont work, could be the motor that drives the window or maybe a cable break which will be very hard to find and at that point its time for an auto electrician.

i was having the same problem...then i got a diesel treatment its call diptaine mix it in with your fuel and let it do it work the next morning my car started no problem