Removing, installing cylinder head cover - AR01.20-P-5014AO
WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.
ENGINE 120.980 /981 /982 /983
Shown on engine 120.980/981
| 1 | Remove intake manifold | Engine 120.980/981 | AR09.20-P-1310F |
| Engine 120.982/983 | AR09.20-P-1310FA | ||
| 2 | Remove viscous fan clutch | AR20.40-P-5660AO | |
| 3 | Fit on guard plate to intake passages | ||
| 4 | Take off shielding caps (14, 15, 16) at high voltage distributor | ||
| 5.1 | Unclip spark plug connectors (2), unplug and fit on | Engine 120.980/981 | |
| 6.1 | Unbolt recesses (3) of spark plug cables at cylinder head covers (4 and 5) | Engine 120.980/981 | |
| 7.1 | Unbolt high voltage distributor (6) and holder (6a) on left | Engine 120.980/981 | |
| 8.1 | Remove camshaft position sensor | Engine 120.980/981 | |
| 9.1 | Take off recesses (3) of spark plug cables with high voltage distributor (6) and spark plug connectors | Engine 120.980/981 | |
| 10.1 | Remove ignition coils | Engine 120.982/983 | |
| 11 | Unclip crankcase ventilation lines at holder of cylinder head covers | ||
| 12 | Unbolt dipstick guide tube (7) at right-hand cylinder head cover | ||
| 13 | Unscrew bolts (9) with seals (10) or washers (10) | Pay attention to different bolt length see ↓ |
*BA01.30-P-1004-01B |
| Bolt diagram of cylinder head cover | AH01.20-P-5014-04AO | ||
| 14 | Take off cylinder head covers (4 and 5) together with gaskets (11 and 12) and recess seals (13) | Check gasket of cylinder head cover to ensure correctly installed. |
AR01.20-P-5014-01AO |
| Check locating pins of cylinder head cover to ensure correctly installed. | AR01.20-P-5014-05AO | ||
| 15 | Install in the reverse order | ||
| 16 | Run engine | ||
| Risk of accident as a result of vehicle starting off when engine running. Risk of injury as a result of bruises and burns if you insert your hands into engine when it is being started or when it is running. | Secure vehicle to prevent it starting off. Wear closed and close-fitting work clothes. Do not grasp hot or rotating parts. |
AS00.00-Z-0005-01A | |
| 17 | Pay particular attention to leaktightness at rear and in spark plug recesses |
CYLINDER HEAD
| Number | Designation | Engine 120 | |
|---|---|---|---|
| BA01.30-P-1004-01B | Bolt of cylinder head cover to cylinder head | Nm | 9 |