1990 BMW 325is AutomaticFACTORY OEM SERVICE PROCEDURE

Fuel Pump Relay Control

The test terminal is 3 and ground. Bridge terminal 36 and 2 with fused jumper wire is the test condition. Fuel pumps should run (audibly) when terminal 3 is touched to ground is the correct test value.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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