Question about 2002 BMW 5 Series
I have a 1997 BMW 540i & the only way I can get heat from the car is by using the windshield defrost system. When I turn the heat on, only cold cool air comes out. Am doing something wrong?
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Posted on Jan 02, 2017
It sound dumb, but check if both battery posts are OK. Pull on both of them one after the other to make sure they wont budge at all. Cause i had this problem once where the negative post had broken, but inside the battery where the post and the plates that make up the battery's cells become one. But since the post was still sitting in the battery, it touched just enough to give the car juice to start and all, but when i hit a big enough bump, the post jumped up so the car had no more ground, and with no ground to work with, the spark plugs can't make any fire so the engine dies apparently for no reason. So even if it sound weird or dumb, check that out first cause it would be the thing that makes you search the longest. If everything regarding the battery is fine, then i'm guessing a problem with a body ground or grounding strap somewhere. Might either be the grounds regarding the engine that give it the possibility to fire and such, or might be the grounds and/or fuses and connectors that make the car's onboard computer work.
Posted on Jul 08, 2009
You have oil leaks getting on the exhaust system, they are getting into the car, have the car checked over to find source of leaks.
Posted on Oct 31, 2008
It is the Final Stage Unit/Blower Motor Resistor - changed mine and the problem never came back. After two tows and drained batteries. Most mechanics don't seem to put this one togther - you have to demand it. Funny because it is a VERY COMMON problem in BMW.
Posted on Dec 22, 2008
SOURCE: BMW Keyless Entry not working
hi, to program the keys to the vehicle is quite simple
1) open the vehicle, sit inside and close the door
2) insert the key in the ignition and turn to position 1 so that just the air bag light illuminates
3) press and hold the unlock button on the key and remove the key from the ignition (do not release the unlock button)
4) while still holding the unlock button with the key removed press the lock button 3 times
5) release the unlock button on the remote and the door locks should lock and unlock if the proceedure has been carried out correctly
6) to program any other key(s) press and hold the unlock button on remote and again press the lock button 3 times but do not insert it into the ignition or turn the ignition on as done previous.
you may want to print these instructions and read them a few times before proceeding, if you muck up the process while programing keys, no harm will be done, you just have to start the process over. hope this is of some help, regards mark.
Posted on Apr 10, 2009
I would check the fuel pressure just after starting and again after 10-15 minutes (or before it dies). Sounds like a fuel delivery problem. Could be a stuffed up filter, or the fuel pump could be dying. I had a Volkswagen some years ago and it had two fuel pumps, a large one up in the engine bay and a small "helper" in the gas tank. The one in the gas tank was bad but the bigone was fine, so I'd start the car normally, drive for about 20 minutes, then the car would die and not want to start again until it had cooled off. Maybe you have the same setup.
Posted on Jun 11, 2009
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