E46Fanatics - View Single Post - M54 Oil Pump solution
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Old 12-07-2011, 11:07 PM   #75
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Join Date: Jun 2010
Location: Louisville, KY
Posts: 27
My Ride: e30 ix, e34 touring
Originally Posted by Bimster View Post
Sounds exactly like what happened on my '04 530i at about 70k. The red oil pressure light would come on for a few seconds after: long drive, idle, starting up again slowly. (Panic time when going up a one way parking garage ramp helix with no exits.)

The dealer replaced the sender first and ultimately ended up replacing the oil pump.

Oil pump pressure is proportional to engine speed, so if there's a problem developing it will likely appear first at your lowest speeds when the oil is really hot and then disappear as the engine speeds up.
I Believe there was a TSB on that on the earlier cars.

Does anybody have a photo of the motorsports pump?
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