20 Most Recent 2004 BMW 5 Series - Page 2 Questions & Answers

You have one or both rear air suspension bags leaking.

airbag light on means some DTCs stored in your airbag,so you should get a airbag reset tool to do your car,meybe B800 BMW airbag reset tool can do your car.

Hi, Hi, First thank you for help me for this problem. I have 2004 530i bmw. mileage 118,250. The check engine (increased emissions) comes on after I serviced windshield washer. Is there anybody run into this problem?

CHECK FUSES

check gear stick position sensor switch down the side of the gear stick .

There are hundreds of reasons that light will go on. Unfortunately you'll need to get the system scanned and see what errors show up. Most shops will do a scan for a small fee or take it to Autozone, they will sometimes do a scan for free.

There are hundereds of reasons that light will go on. Unfortunately you'll need to get the system scanned and see what errors show up. Most shops will do a scan for a small fee or take it to Autozone, they will likely do a scan for free.

Check your speed alarm in your computer. It maybe setup to alarm when going over that speed and it will only do it once during that trip if I remember correctly.

If it doesnot crank at all look for starter/starter relay/starter relay fuse. Most probably wiring coming to starter is loose, try to tighten it more (push towards starter). Also I would check antiteft system (if it is provided for your car) as some BMW have immobilizers.
If it cranks no start look for spark plugs, wires, distributor cap, coolant temperature sensor, O2 sensor, fueling system (fuel pump cutoof switch, fule pump relay, fuel filter).
Please kindly let me know if you need more information, or kindly provide me with more details to assist you better
Good Luck