Remove/install electromagnetic clutch for compressor - AR09.50-P-4786R (SL55 AMG)
ENGINE 113.990 /991 /992 /995
| Removing | |||
|---|---|---|---|
| Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running | Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. |
- | |
| Risk of death caused by vehicle slipping or toppling off the lifting platform. | Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer. | - | |
| Risk of injury caused by fingers being pinched or crushed when removing, installing or aligning hoods, doors, trunk lids, liftgates or sliding roof | Keep body parts and limbs well clear of moving parts. | - | |
| 1 | Open engine hood and raise to vertical position | AR88.40-P-1000R | |
| 2 | Remove V-belt | AR13.21-P-1202RVK | |
| 3 | Raise vehicle | ||
| 4 | Remove bottom engine compartment paneling | AR61.20-P-1105R | |
| 5 | Loosen both front engine mounts (1) | ||
| 6 | Lower vehicle | ||
| 7 | Lift engine with engine hoist until center bolt (2) is accessible | When doing this, check that the coolant hoses and hydraulic lines of the power steering pump do not become overstretched. | |
| Fig 4 | |||
| 8 | Unscrew center bolt (2) with an impact wrench and compressor belt pulley (3) | If belt pulley is seized use pulley with corresponding clamping pliers To pull off, screw in center bolt without shim and use as a support. |
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| Fig 5 | |||
| Fig 6 | |||
| 9 | Remove adjusting disks | ||
| 10 | Screw adapter into center hole and flush- mount the puller | Tighten the puller clamp screws evenly to 110 Nm. | |
| 11 | Remove magnetic clutch mechanical supercharger (Y2/1) using puller | Do not lay puller lever against the oil filter housing. Get an assistant to counterhold. Remove dowel pins (4), these will no longer be required when mounting the new magnetic clutch mechanical supercharger (Y2/1). |
|
| Fig 7 | |||
| Installing | |||
| 12 | Heat up new magnetic clutch mechanical supercharger (Y2/1) on a suitable hot plate to about 165 °C (5 °C) | Place magnetic clutch with hub side on the hot plate. | |
| 13 | Wearing heat-resistant gloves, mount the heated magnetic clutch mechanical supercharger (Y2/1) and hold at end stop for about 30 s | Do not tilt magnetic clutch when mounting. Allow to cool down to ambient temperature and clean the magnetic clutch. | |
| 14 | Attach old adjusting disks to magnetic clutch mechanical supercharger (Y2/1) | ||
| 15 | Attach compressor belt pulley (3) to magnetic clutch mechanical supercharger (Y2/1) | ||
| 16 | Measure air gap at compressor belt pulley | Place center bolt (2) of compressor belt pulley and measure air gap at 3 points. | |
| Clearance | *BE09.50-P-1001-01A | ||
| 17 | Tighten center bolt (2) on compressor belt pulley (3) | Hold center bolt (2) using counterholder or universal tensioning strap (6). | |
| *BA09.50-P-1007-01B | |||
| Loctite 243 | *BR00.45-Z-1133-02A | ||
| 18 | Install V-belt | AR13.21-P-1202RVK | |
| 19 | Raise vehicle and tighten both front engine mounts (1) | ||
| *BA22.10-P-1001-03H | |||
| 20 | Install lower engine compartment paneling | AR61.20-P-1105R | |
| 21 | Lower vehicle | ||
| 22 | Carry out engine test run | ||
| 23 | Close engine hood | AR88.40-P-1000R |
ELECTROMAGNETIC CLUTCH
| Number | Designation | Engines 113.990 /991 /992/995 | |
|---|---|---|---|
| BE09.50-P-1001-01A | Clearance | mm | 0.35 to 0.45 |
ENGINE MOUNTS, ENGINE SUPPORTS
| Number | Designation | Model 230 except model 230.476/477/479 | Model 230.476/477/479 | |
|---|---|---|---|---|
| BA22.10-P-1001-03H | Bolt, front engine mount to front axle carrier | Nm | 35 | 35 |
SUPERCHARGER
| Number | Designation | Engine 113.990 | Engine 113.991 | Engines 113.992/ 995 | |
|---|---|---|---|---|---|
| BA09.50-P-1007-01B | Center bolt on compressor belt pulley | Nm | 60 | 60 | 60 |
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1133-02A | Loctite 243 | A 613 989 09 71 |