Fuel Rail: Service and Repair

Replacing Fuel Line (S54)

Special tools required:
- 12 1 120

Interrogate fault memory of DME control unit.
Switch off ignition.

Remove intake air manifold.
Remove starter motor.

Recycling
Fuel emerges when fuel line is detached. Catch and dispose of escaping fuel.
Observe country-specific waste-disposal regulations.







CAUTION: The connector strip (1) may break if it is removed without special tool 12 1 120







Unlock connector strip with special tool 12 1 120 in sequence 1 to 6.







Release upper screw of fuel line (2) from return line.
Unclip vacuum line from holders on fuel line.







Release lower screw of fuel line (2) from engine block.
Follow instructions for unlocking fuel line.
Unlock fuel feed line and detach from fuel line (2).







Detach retainer (1).
Pull fuel line out of fuel injector rail and remove


NOTE:
Interrogate fault memory of DME control unit.
Check stored fault messages.
Rectify faults.
Then clear fault memory.