BMW 5251 Service Manual page 76

11 0-4
/Engine Removal and Installation
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Disconnect negative (-) cable from battery.
CAUTION-
Prior to disconnecting the batteg read the battery discon-
nection cautions in 001 General Cautions a n d Warnings.
-
Remove engine hood, or place in service position. See 410
Fenders, Engine Hood.
4
Remove left and right interior ventilation ducts (lefl side
shown):
Release ventilation filter cover latch (A) and remove cover.
Release plastic loclting tab (6) or release locking tabs on
top of duct (later models).
Rotate duct counterclocltwise to unloclt from bulkhead and
remove (arrow).
Disconnect electrical harness from hood switch (C).
Release spring loclt (D).
Slide filter housing away from inner fender to remove.
Removal of right side ventilation duct is similar.
Remove rear bulkhead panel:
Remove rubber sealing gasket (arrow).
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Remove 3 mounting clips (A).
Remove 4 retaining screws (6).
Lift off panel.
Remove complete air filter housing:
Loosen intalte duct hose clamp (A) at throttle assembly.
Loosen clamp and remove idle control line from intalte duct
(6) and (where applicable) disconnect idle speed control
valve electrical harness connector.
Disconnect harness connector (C) from mass air flow sen-
sor.
Remove air filter housing mounting screw (D).
Disconnect vent tube (E).
Loosen air intake duct clamp (F).
Carefully lift air filter housing out of engine bay.