Camshaft Timing, Checking And Adjusting (M62Engine) - BMW 5251 Service Manual

Camshaft Timing chain/
Camshaft timing, checking and adjusting
(M62 engine)
WARNING
-
Allow engine to cool before beginning this procedure.
1
-
Working inside luggage compartment, disconnect negative
battery cable.
CAUTIOI\C
Prior to disconnecting battery cable, read the battery discon-
nection cautions given in 001 General Cautions a n d
Warninss.
4
Removing plastic top covers:
Press down on locking pins (arrows) to release locks. Lift
intake manifold cover straight up to remove.
Pry out caps from side covers.
Remove fasteners from beneath caDs. Lift off covers.
4
Remove air filter housing and ducts:
Disconnect mass air flow sensor and intake air tempera-
ture sensor electrical harnesses (A and B).
Remove air filter housing mounting fastener (arrow).
Release hose clamp at intake air duct on base of air filter
housing.
Loosen intake hose clamp
(C)
and release hose from
mass air flow sensor.
Remove hose at idle air stabilizer.
Release hose clamp at throttle body and remove hose.
Remove upper air filter housing with mass air flow sensor.
-
Unbolt left and right side cable ducts from fuel rail.