Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSMINI2013COOPER JCW, 2D CONVERTIBLE, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2315 (ENGINE - REPAIR (N52K))V-RIBBED BELT WITH TENSIONER DEFLECTION ELEMENT11 28 010 REPLACING ALTERNATOR DRIVE BELT (N52K)

2013 Mini Cooper JCW, 2D Convertible, Standard Trans

11 28 010 Replacing Alternator Drive Belt (N52K)

2013 Mini Cooper JCW, 2D Convertible, Standard TransSECTION 11 28 010 Replacing Alternator Drive Belt (N52K)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 128i, and 2009 BMW 128i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

For the following special tools, refer to ENGINE- SPECIAL TOOLS (N52K) .

11 3 340

IMPORTANT: Aluminum-magnesium materials. No steel screws/bolts may be used due to the threat of electrochemical corrosion. A magnesium crankcase requires aluminum screws/bolts exclusively. Aluminum screws/bolts must be replaced each time they are released. Aluminum screws/bolts are permitted with and without color coding (blue). For reliable identification: Aluminum screws/bolts are not magnetic . Jointing torque and angle of rotation must be observed without fail (risk of damage) .

Necessary preliminary tasks:

Remove fan cowl with electric fan. See 17 11 035 REMOVING AND INSTALLING/REPLACING FAN COWL WITH ELECTRIC FAN (N52/ N52K/ N53) .

Drive belt routing E90, E91, E92, E93, E81, E82, E88

NOTE: Mark the direction of rotation of the drive belt if it is to be reused.

Turn belt tensioner (4) in direction of arrow until bore (2) is flush on housing.

Hold belt tensioner (4) under tension.

Load is removed from tensioning pulley.

Fig 1: Turning Belt Tensioner

Courtesy of BMW OF NORTH AMERICA, INC.

Course of E85 drive belt:

Turn belt tensioner (1) in direction of arrow until bore is flush on housing.

Hold belt tensioner (1) under tension.

Load is removed from tensioning pulley (2).

Fig 2: Turning Belt Tensioner

Courtesy of BMW OF NORTH AMERICA, INC.

All:

Secure belt tensioner (1) with special tool 11 3 340.

Remove drive belt upwards.

Fig 3: Identifying Belt Tensioner With Special Tool (11 3 340)

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Installation:

Check drive belt for correct installation position and, if reusing, observe direction of rotation. Risk of damage.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.