April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fuel System - Repair Instructions

Checking - Setting Engine
- 13 00 002 Checking function of Digital Engine Electronics (DME)
  - Diagnostic connector in engine compartment:
Fuel Pump
- 13 31... Notes on fuel pressure check (reference pressure: environment)
  - Notes
  - Description of operation:
- 13 31 029 Checking fuel pump delivery pressure (M54)
Fuel Filter
- 13 32 051 Replacing fuel filter (M54)
Speed Governor
- 13 41 500 Replacing idle speed control valve (M52TU, M54)
Inj. Pump, Regulator
- 13 51 630 Replacing fuel pressure regulator (M54, N42, N62, N40)
Injection Nozzle & Injection Pipe
- 13 53 240 Replacing complete injection pipe (M54)
- 13 53 540 Replacing, sealing fuel hoses
Throttle & Operation
Electronic Control Unit
- 13 62 560 Removing and installing/replacing air-mass flow sensor (M54)
Sensor For Control Unit
Throttle Potentiometer
- 13 63 590 Replacing fuel pump relay
Start Valves
- 13 64 541 Replacing all fuel injectors
Intake Silencer
- 13 71 000 Remove and installing intake filter housing (M52TU, M54)
Air Cleaner
- 132 001 Replacing air cleaner element (M54)
Carbon Canister Ventilation
- 13 90 500 Replacing tank venting valve (M52TU, M54)