12 31 280

Applies to all engines:
Release oil-filter cover so that oil from oil filter returns to oil pan.

Installation:
For tightening torque, refer to Technical Data 11 42 2AZ Check oil level.
Disconnect connector.

M40:

Disconnect intake hose from suction-filter housing intake fitting Unscrew switch.

Installation:

For tightening torque, refer to Technical Data 61 31 2AZ

M50:

Remove complete suction filter.

Disconnect air hose for alternator.

Unscrew switch.

Installation:

For tightening torque, refer to Technical Data 61 31 2AZ

S50:

Removing suction-filter housing.

Disconnect plug-in connection (1).

Unfasten screw (2) on heat-protection plate.

Loosen hose clip (3) from intake hose.

Loosen screws (4).

Lift suction-filter housing sightly.

Pull off intake neck.

Pull off air hose (1).

Remove suction-filter housing.

Remove heat-protection plate.

Disconnect plug-in connection (1).

Unscrew and remove oil-pressure switch.

Note:

Oil-pressure switch on oil-filter base.

Installation:

For tightening torque, refer to Technical Data 61 31 2AZ

M 43:

Remove alternator, refer to 12 31 020  Remove mounting block for alternator.

Disconnect connector.

Unscrew and remove oil-pressure switch.

Installation:
Tightening torque 61 31 2AZ