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Home >> BMW >> 2010 >> X3 Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine - Repair (N52) >> Variable Camshaft Timing >> 11 36 046 Removing and installing/replacing inlet and exhaust adjustment units (N52K) >> Necessary preliminary tasks

Necessary preliminary tasks

IMPORTANT: Install special tool 11 4 280 to release the central bolts on the inlet and exhaust adjustment units and camshafts.

Fit special tool 11 4 283 with screws (1).

Fit special tool 11 4 281 on special tool 11 4 283.

IMPORTANT: Fit special tool 11 4 282 underneath on side of inlet camshaft.
Fig 1: Identifying Special Tools Fitted To Camshaft And Cylinder Head
G04751157Courtesy of BMW OF NORTH AMERICA, INC.

Release chain tensioner (2).

Tightening torque 11 31 6AZ .

Release central bolts on inlet and exhaust adjustment units (1).

Tightening torque 11 36 1AZ .

Installation: 

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