13 53 240 Replacing complete injection pipe (M62)
Interrogate fault memory of DME control unit.
Switch off ignition.
Turn fasteners on acoustic cover 90° counterclockwise.
Remove acoustic cover.
Detach plug connections (1) of knock sensors from cable strips.
Detach plug (2) from electric changeover valve.
Detach plugs (3) of camshaft sensors from cable strips.
Remove sealing caps on cover of ignition coils on left.
Release nuts.
Remove cover on ignition coils on left.
Installation:
Check profile seal (1) for damage and correct seating, replace if necessary.
Disconnect plug connection of ignition coils on left cylinder head from ignition coils.
Installation:
Screw thin grounding strap (1) and wide grounding strap (2) to ignition coil of cylinder 7.
Release nuts.
Disconnect cable strip (1) from fuel injectors.
Place electric changeover valve (2) together with holder to one side.
Disconnect vacuum lines from vacuum accumulator (3).
Place vacuum accumulator (3) together with holder to one side.
Disconnect cable strip (4) from fuel injectors and place to one side.
Recycling The fuel in the fuel lines is under pressure (approx. 3 to 5 bar)! Fuel emerges when the fuel lines are disconnected from the fuel filter. Catch and dispose of escaping fuel. Observe country-specific waste-disposal regulations. Remove fuel pressure regulator.
To unlock fuel line:
Press fuel line (1) downwards and keep pressed.
Press unlocking ring (2) upwards, keep pressed and disconnect fuel line (1).
Disconnect fuel line (1).
Release clamp (2).
Detach hose (3).
Release nuts.
Remove both retaining brackets (1 and 2).
Pull out injection pipe (3) with fuel injectors towards top.
Remove injection pipe with fuel injectors.
Lever out fuses (1).
Pull fuel injectors (2) out of injection pipe.
Installation:
Check O-rings on fuel injectors for damage and replace if necessary.
Coat O-rings with anti-friction rubber coating (e.g. petroleum jelly).
Check stored fault messages.
Rectify faults.
Now clear the fault memory.