11 28 071 Removing and installing/replace toothed belt for starter motor (PHEV)

WARNING: High-voltage system - danger to life

Observe SAFETY INFORMATION for handling electric vehicles.

IMPORTANT: In the event of a leak at the pressure pipe, there is a risk of damage to the turbocharger.

Necessary preliminary tasks:

Remove acoustic cover at front.

Removal:

Using a suitable tool (2), unclip the cover (1) from tensioning pulley.

Fig 1: Removing Cover From Tensioning Pulley Using Tool

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Release screw (1).

Fig 2: Identifying Tensioning Pulley Screw

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Slacken belt.

NOTE: Mark direction of rotation of the toothed belt.

Turn tensioning pulley (1) with hexagon socket wrench till limit position (2) in direction of arrow.

Remove toothed belt from starter motor.

Fig 3: Turning Tensioning Pulley With Hexagon Socket Wrench

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Installation:

Install toothed belt, note direction of rotation.

Turn tensioning pulley in direction of arrow until needle (1) is in the middle of the adjustment window (2) of the base plate (3).

Fig 4: Installing Tensioning Pulley

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NOTE: If the needle is found inside the adjustment window on the base plate when the engine is switched off, the correct tension is adjusted.

During engine start, the needle position can also be found outside the adjustment window due to changing load in the toothed belt starter system. This is normal in this situation and does not need any further setting of the toothed belt tension.

Tighten screw (1).

Tightening torque: 11 28 1AZ .

Fig 5: Identifying Tensioning Pulley Screw

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Mount protective cap (1) on tensioning pulley.

Fig 6: Identifying Protective Cap On Tensioning Pulley

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