BMW oil pressure red light

5

Asked by Sep 27, 2016 at 05:55 PM about the 2003 BMW 3 Series 330i Sedan RWD

Question type: Maintenance & Repair

Hello,
I have a BMW 330i 2003 clean car and no issue since I bought it. The problem now is the
oil pressure warning light is blinking when the car is idle, especially when I stopped at red
traffic light, but when I move the car, the light goes off. I took it to a maintenance place
where they fix german cars. They did not see the light is on when the car stayed with them
two days. They checked the oil pressure, and it is fine. They also put a new oil pressure
sensor to make sure if is defective. in addition to that, they put a new oil and filter. They
told me light should not be on again, but once I took the car to back home, the light return
on again and I was surprised and dissappinted. I'm planning to take it back to the
maintenance tomorrow, but your suggestion and analysis of this issue are highly
appreciated.

Many thanks and kind regards,

4 Answers

8,005

When they do the oil pressure test, they need to do it when engine is cold and when it's at operating temperature, if pressure drops at running temperature, you have engine wear problems

5

@Irodri911 Can you please clarify more about engine wear problems? This is the first time i heard about this.

270,295

Yellow oil light is low oil or a defective sensor, Red oil light means low oil pressure. Do not drive and get it fixed ASAP.

8,005

If the oil pressure drops below minimum depending engine, around 30psi, it means your internal clearances are too high meaning worn internal parts such as crankshaft, camshaft, bearings, depending on pressure check, it might be the oil pump as well

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