20 Most Recent 2005 BMW 745Li Questions & Answers

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check ground

Hello everyone, please forgive me for the question but i honestly can't seem to find the answer to it. I want to change my fuel pump relay in my 2003 745Li. If I'm not mistaking, the fuel pump relay is located in the trunk next to the battery. I did notice the green cube looking thing (fuel pump relay) in the trunk but there were two of them. Do i need to purchase two fuel pump relays? Any insight would be greatly appreciated. ??

You will need to use an appropriate scan tool

Might be a loose fuse or connector. Try wiggling the fuse and/or wires leading to the fuse box.

This is usually caused by the crankcase vent valves leaking air. These valves are round and sit on top of the front of each valve cover at the front. The diaphragm leaks and causes a vacuum leak and the car runs rough.

So your off to a dealer or trans shop Went into fail safe for a reason

Drive it a few miles