Remove/Install Timing Case Cover - AR01.40-P-8000MRI
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Engine 264 in model 205, 253
MODIFICATION NOTES
| 25.04.2019 | Method description adapted. | Operation steps 3 and 4 |
Shown on Engine 264 with code B01 (48V technology) and except code M005 (4MATIC)
Fig 1: Timing Case Cover Components Location - Engine 264 In Model 253 (Shown With Code B01 And Except Code M005)
Shown on Engine 264 with code B01 (48V technology) and except code M005 (4MATIC)
| Risk of injury . Skin or eye injuries may result when handling hot or glowing objects. | Wear protective gloves, protective clothing and safety glasses, if necessary. | AS00.00-Z-0002-01A | |
| Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant. | Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the overpressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. |
AS20.00-Z-0001-01A | |
| Risk of injury caused by scraping or cutting body parts on sharp vehicle parts | Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels. |
AS00.00-Z-0017-01A | |
| Risk of injury to skin and eyes due to handling of Engine oil. Risk of poisoning caused by swallowing Engine oil | Wear protective gloves, protective clothing and safety glasses. Do not fill Engine oil into beverage containers. |
AS18.00-Z-0001-01A | |
| Notice | Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | |
| Notice | Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | |
| Notes on application of flange sealants to seal major assemblies | AH00.00-P-0500-01MNE | ||
| Remove/install | |||
| 1 | Deactivate Memory Package using the COMAND operating unit. | Engine 264 in model 205, 253 with code 275 (Driver's seat, electrically adjustable with memory function) |
|
| 2 | Move front wheels to straight-ahead position and fix steering wheel in place with holding device. | Do not turn steering wheel when steering coupling is disconnected. Clock spring contact will otherwise be destroyed. |
Fig 4 |
| 3 | Secure vehicle on vehicle lift. | AR00.60-P-1006A | |
| 4 | Release pressure in AIRMATIC system using vehicle diagnosis system. | Engine 264 in model 205, 253 with code 489 (AIRMATIC Dual Control/semi-active air suspension) |
|
| AD00.00-P-2000-04B | |||
| 5 | Drain off coolant. | AR20.00-P-1142MRI | |
| 6 | Remove belt pulley. | AR03.30-P-1700MRI | |
| 7.1 | Remove belt-driven starter alternator (M1/10), place to one side with connected lines, and secure against falling down. | Engine 264 in model 205, 253 with code B01 (48V technology) |
AR15.40-P-5060MRI |
| 7.2 | Remove alternator (G2), place to one side with connected lines, and secure against falling down. | Engine 264 in model 205, 253 except code B01 (48V technology) |
AR15.40-P-5032MRI |
| 8 | Remove refrigerant compressor with magnetic clutch (A9/7), place to one side with connected lines, and secure against falling down. | AR83.55-P-5310MRI | |
| 9 | Remove oil pan. | Engine 264 in model 205, 253 except code M005 (Vehicles with 4MATIC/all-wheel drive) |
AR01.45-P-7500MRI |
| Engine 264 in model 205, 253 with code M005 (Vehicles with 4MATIC/all-wheel drive) |
AR01.45-P-7500MRJ | ||
| 10 | Remove coolant hose (11) between the thermostat (12) and left coolant pipe (13). | Fig 2 | |
| 11 | Remove coolant hose (7) from coolant pipe and place to one side. | Fig 2 | |
| 12 | Remove coolant hose (6). | Fig 2 | |
| 13 | Remove coolant hose (10). | Fig 2 | |
| 14 | Remove full load bleed line. | AR01.20-P-0020MRI | |
| 15 | Release and disconnect the electrical connector (2). | ||
| 16 | Unclip electric line (8) from timing case cover (1) and place to one side. | ||
| 17 | Release and disconnect electrical connector (3). | ||
| 18 | Remove screws (9). | *BA01.30-P-1002-01BA | |
| 19 | Remove screws of the timing case cover (1) in the opposite direction to the tightening procedure. | Tightening procedure for timing case cover | AR01.40-P-8000-02MRH |
| *BA01.40-P-1001-03A | |||
| 20 | Remove timing case cover (1). Notes on sealant path for timing case cover |
When removing, do not pound in any tool between the timing case cover (1) and crankcase. Sealing surfaces will otherwise be damaged. |
AH01.40-P-1000-01MRH |
| Sealant, Loctite 5970, 50 ml | *BR00.45-Z-1013-01A | ||
| Fig 3 | |||
| 21 | Change adapter line (4). | When replacing timing case cover (1). | |
| 22 | Change oil filter cover. | When replacing timing case cover (1). | |
| Engine 264 in model 205 with code M005 (Vehicles with 4MATIC/all-wheel drive) Engine 264 in model 253 |
AP18.00-P-0101E | ||
| Engine 264 in model 205 except code M005 (Vehicles with 4MATIC/all-wheel drive) |
AP18.00-P-0101EE | ||
| 23 | Change heat exchanger. | When replacing timing case cover (1). | AR18.30-P-6841MRI |
| 24 | Install new cap (5) in the timing case (1). | When replacing timing case cover (1). | |
| 25 | Install front radial shaft sealing ring. | When reusing the timing case cover (1) or if no radial shaft sealing ring is installed in the new part. | AR03.20-P-3002MRI |
| Check | |||
| 26 | Check sealing surfaces of the timing case cover (1) and crankcase for damage. | If damage is present, ↓ Replace corresponding component. Engine 264 in model 205, 253 except code M005 (Vehicles with 4MATIC/all-wheel drive) |
AR01.10-P-2401MRI |
| Engine 264 in model 205 with code M005 (Vehicles with 4MATIC/all-wheel drive) |
AR01.10-P-2500MRI | ||
| Engine 264 in model 253 with code M005 (Vehicles with 4MATIC/all-wheel drive) |
AR01.10-P-2500MRP | ||
| Clean | |||
| 27 | Clean sealing surfaces of timing case cover (1) and crankcase. | Do not use any sharp-edged tools or abrasive paper. Sealing surfaces will otherwise be damaged. |
AR01.00-P-0050-01A |
| Loctite 7063 (400 ml) cleaning spray | *BR00.45-Z-1046-04A | ||
| Loctite 7200 | *BR00.45-Z-1038-04A | ||
| 28 | Install in the reverse order. | ||
| 29 | Check Engine oil level and correct if necessary. | ||
| AP18.00-P-1812MKI | |||
| Risk of burn injuries , suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust. | Wear protective clothing and safety glasses. Use the extraction system. Move people out of the danger zone. | AS49.00-Z-0001-01A | |
| Risk of accident from vehicle starting off by itself when Engine running. Risk of injury (bruises and burns) resulting from working on the Engine while it is being started or when it is running. | Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | AS00.00-Z-0005-01A | |
| 30 | Perform Engine test run. While doing so, check Engine for proper operation and leak tightness. |
CYLINDER HEAD
| Number | Designation | Engine 264 | |
|---|---|---|---|
| BA01.30-P-1002-01BA | Bolt, cylinder head to timing case cover | Nm | 20 |
CRANKCASE, TIMING CASE COVER, END COVER
| Number | Designation | Engine 264 | ||
|---|---|---|---|---|
| BA01.40-P-1001-03A | Bolt, timing case cover to crankcase | M6 | Nm | 9 |
| M10 | Nm | 58 | ||
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1013-01A | Sealant, Loctite 5970, 50 ml | A 003 989 98 20 10 |
| BR00.45-Z-1038-04A | Loctite 7200 | A 010 989 90 71 |
| BR00.45-Z-1046-04A | Loctite 7063 (400 ml) cleaning spray | A 001 986 71 71 09 |