Removing Cylinder Head Cover

WARNING: This page is about a different variant/trim than selected.

NOTE: NOTIFICATION
Cylinder head cover fitted and screwed on incorrectly

Incorrect installation position of hall sender with respect to the camshaft
Risk of engine damage
Fault entries in the DME control unit
→ The cylinder head cover must be aligned carefully over the fitted bar ignition modules.

Information

Plastic clips can be damaged once the wiring harness holder has been undone and must be checked to ensure they can be used again!

Information

Always replace seals.

Remove hose for positive crankcase ventilation. > Positive crankcase ventilation hose

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Positive crankcase ventilation hose
Remove cover on solenoid valve for camshaft adjustment -A- and release and pull off the connector lying underneath -B- .

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Solenoid valve for camshaft
Release and unplug connector for valve lift adjustment at cylinder 4. > Connector for valve lift adjustment

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Connector for valve lift adjustment
Release wiring harness for bar ignition modules from the bracket -A- and remove fastening screws on the ground straps underneath -B- .

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Wiring harness for bar ignition modules
Release and unplug connector for camshaft hall sender. > Camshaft hall sender connector

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Camshaft hall sender connector
Remove B+ wiring harness on cylinders 5 to 8 and camshaft hall sender connector.

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Fastening screw on wiring harness
1. 6.1 Remove fastening screw -A- on B+ wiring harness holder at the cylinder head cover.
2. 6.2 Remove fastening screw -B- on B+ wiring harness holder at the engine retaining eyelet.
3. 6.3 Lay the wiring harness aside.
4. 6.4 Release and unplug connector for camshaft hall sender -C- .
Unscrew and remove fastening screws for engine retaining eyelet. > Engine retaining eyelet, cylinders 1 - 4 and > Engine retaining eyelet, cylinders 5 - 8

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Engine retaining eyelet, cylinders 1 - 4

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Engine retaining eyelet, cylinders 5 - 8
Remove fastening screw on wiring harness holder for cylinder 5 and remove the holder. > Holder for wiring harness

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Holder for wiring harness
Unscrew fastening screws -1 to 13- on the cylinder head cover in the opposite sequence.

Fig 1: Cylinder Head Cover Screws Loosening Sequence
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Fastening screws on cylinder head cover for cylinders 1 to 4
Lift up cylinder head cover at a slant -A- , remove it towards the front -B- and set it down on a clean surface. Carefully pull cylinder head cover through under the cables at cylinders 5 to 8 > Cylinder head cover - cylinders 5 to 8 .

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Cylinder head cover - cylinders 1 to 4

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Cylinder head cover - cylinders 5 to 8