Auxiliary drive belt

AIR CONDITIONING or AUTOMATIC AIR CONDITIONING

Tightening torques
wheel fixing bolts	11 daN.m

WARNING: Never turn the engine against its normal direction of rotation.

REMOVAL

• Position the vehicle on a two-post lift.
• Disconnect the battery.

• Remove:

• the engine covers,
• the front right wheel,
• the right-hand front mudguard,
• the right-hand side reinforcement (1).

K4J or K4M or K9K

Engines fitted with air conditioning

• Turn the automatic auxiliary belt tensioner pulley clockwise using a 16 mm spanner.

F4R or F9Q

• Turn the automatic auxiliary belt tensioner pulley anticlockwise using a 16 mm spanner.
• Remove the auxiliary belt.

INSTALLATION

• Clean the crankshaft pulley bolts with a brush to remove any deposits.

WARNING

• Always replace an auxiliary belt once removed.
• Do not run the engine without the auxiliary belt, to avoid damaging the crankshaft auxiliary pulley.

• Reverse the removal procedure.

WARNING

Connect the battery; carry out the necessary re-learns (see Electrical Equipment chapter).

• Tighten the wheel bolts to torque (11 daN.m).

K9K, with STANDARD HEATING

Essential special tools
Mot. 1638	Auxiliary belt tensioning tool

Tightening torques
tensioner pulley fixing bolt	3 daN.m
wheel bolt	11 daN.m

REMOVAL

• Position the vehicle on a two-post lift.
• Disconnect the battery (see Chapter Electrical Equipment).
• Remove:

• the engine covers,
• the front right wheel,
• the right-hand front mudguard.

• Remove the side reinforcement (1).
• Loosen the tensioner pulley bracket fixing bolts.
• Remove the auxiliary belt.

REFITTING THE BELT WITH TENSIONER PULLEY

WARNING

• Always replace the two Torx-head tensioner pulley fixing bolts with M8 x 20 bolts, reference 77 03 002 059,
• Always replace a belt once removed.
• Do not run the engine without the auxiliary belt, to avoid damaging the crankshaft pulley.

• Refit the auxiliary belt.

WARNING

The auxiliary belt has five teeth whereas the pulleys have six. When fitting the belt, make sure that tooth (11) remains free.

• Tension the auxiliary belt using tool (Mot. 1638) by tightening nut (2) (the two tensioner fixing bolts being loosened).

Note: The tension value is 233 +/-5 Hz.

1. 1
   Crankshaft
2. 2
   Tensioner pulley
3. 3
   Alternator
4. 4
   Movable pulley
5. 5
   Tension check point

• Reverse the removal procedure.
• Tighten to the following torques:

• the tensioner pulley fixing bolts (3 daN.m),
• the wheel bolt (11 daN.m).

WARNING

Connect the battery; carry out the necessary re-learns (see Electrical Equipment chapter).

Note: Always turn the engine through two full revolutions to position the belt correctly.