How To know What Fuel Pump I should use

Asked by MohammadAmr Jul 17, 2023 at 01:02 PM about the 1992 BMW 5 Series 520i

Question type: Maintenance & Repair

My BMW 530i was working normally until I changed my fuel pump. I forget to
keep my old fuel pump and the new one doesn't work successfully. I changed
the computer of it and the fuel hoses starts to burst.
How can I know what version of computer, fuel regulator and fuel pump should
I use for my BMW 530i. My BMW is of type 520i and I replaced it to 530i.
I changed the engine from 4 cylinders to 6 cylinders.

4 Answers
7,745

apbimmer98 answered 9 months ago

I recommend checking realoem.com with your VIN. If you did not replace your stock fuel pump when doing the 6 cylinder swap, you should probably be fine to keep the stock 520i pump.

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MohammadAmr answered 9 months ago

I changed both fuel pump and computer and recently I changed the fuel regulator and I don't know how to get them compatible again

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7,745

apbimmer98 answered 9 months ago

Since you swapped the 6 cylinder into the car, I assume that you used the 6 cylinder computer and harness, correct? You should use that one.

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