BMW 5251 Service Manual page 363

120-15
Ignition system1
Exhaust camshaft position sensor, replacing
(M52 TU and M54 engines)
-
Make sure ignition has been turned off.
4
Working at front of engine on exhaust (right) side, detach ex-
haust camshaft position sensor electrical harness connector
(arrow) and remove sensor.
-
Installation is reverse of removal, noting the following:
Use a new O-ring when installing sensor.
-
Use scan tool to read out and clear ECM fault memory.
Tightening torque
Exhaust camshaft sensor
to
cylinder head
10
Nm
(7
ft-lb)
Intake camshaft position sensor, replacing
(M62 and M62 TU engines)
-
Make sure ignition has been turned off
4
Remove top engine cover by releasing quick release fasten-
ers (arrows) by pressing down.
4
Remove air filter housing and mass air flow sensor:
Disconnect mass air flow sensor and intalte air tempera-
ture sensor electrical harnesses (A and B).
Remove air filter housing mounting fastener (arrow).
Loosen hose clamps (C and D).
Remove hose at idle air stabilizer.
Remove air filter housing with mass air flow sensor.
-
Remove intalte hose from throttle body.