1992 BMW 535i AutomaticFACTORY OEM SERVICE PROCEDURE

Fuel System Pressure Release

Fuel system pressure release procedure not available from manufacturer. It may be possible to remove fuel pump relay, start engine, and run engine until fuel pressure drops (engine stalls). See DME & FUEL PUMP RELAY LOCATION table.

DME & FUEL PUMP RELAY LOCATION

Application (1)Location
All Models On Right Rear Corner Of Engine Compartment, Next To DME Control Unit.
(1) See Fig.
Fig 1.
Fig 1: Locating DME/Motronic System Relays
G91E16489Courtesy of BMW OF NORTH AMERICA, INC.
Factory Service Tools

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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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