Remove/Install Left Cylinder Head Cover - AR01.20-P-5013MNL
Engine 176 in model 217, 222
MODIFICATION NOTES
| 05.08.2019 | Note document AH00.00-P-0500-01MNE added. | Operation step 12. | |
| 05.08.2019 | Note document AH05.20-P-1000-09SZ added. | Operation step 18. |
| 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 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 | Notes on threaded connections fastened using a tightening angle-based tightening process | AH00.00-P-0020-01A | |
| Notice | Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | |
| Remove/install | |||
| 1 | Remove rail with fuel injectors. | AR07.03-P-1050MNL | |
| 2 | Remove engine wiring harness from cylinder head cover (4). | AR15.18-P-1000-07MNL | |
| *BA15.10-P-1003-05F | |||
| *BA15.18-P-1001-01G | |||
| 3 | Remove fuel high-pressure pump. | AR07.02-P-1023MNL | |
| 4 | Remove tappet (2). | ||
| 5 | Remove ignition coils. | AR15.12-P-2008MNL | |
| 6 | Remove screws (15) and remove heat shield (16) in upward direction. | *BA09.40-P-1006-01ZA | |
| 7 | Remove left heat shield at left exhaust gas turbocharger. | *BA09.40-P-1007-01ZA | |
| 8 | Remove front cover at cylinder head. | AR01.30-P-5711MNL | |
| 9 | Remove lift solenoid of left rear intake camshaft. | AR05.20-P-6551MNL | |
| 10 | Remove left exhaust camshaft Hall sensor (B6/6). | AR15.12-P-2148MNL | |
| 11 | Release screws (1) of cylinder head cover (4) in reverse order to tightening procedure and remove. | Bolt tightening procedure for cylinder head cover | AR01.20-P-5014-03MNA |
| *BA01.20-P-1004-01J | |||
| 12 | Remove cylinder head cover (4) from cylinder head. | ||
| Notes on application of flange sealants to seal major assemblies | AH00.00-P-0500-01MNE | ||
| Notes on sealant path for cylinder head cover | AH01.30-P-1000-08MM | ||
Do not pound in tool for prying off between cylinder head cover (4) and cylinder head. Otherwise, this damages the sealing surfaces. |
|||
| Sealant, Loctite 5970, 50 ml | *BR00.45-Z-1013-01A | ||
| Fig 1 | |||
| 13 | Remove both rear caps of cylinder head cover (4) at cylinder head. | ||
| *BR00.45-Z-1013-01A | |||
| Fig 1 | |||
| 14 | Remove lift solenoids of left cylinder head cover (4). | On replacing cylinder head cover (4). | |
| Left front intake camshaft | AR05.20-P-6550MNL | ||
| Left front exhaust camshaft | AR05.20-P-6552MNL | ||
| Left rear exhaust camshaft | AR05.20-P-6553MNL | ||
| 15 | Remove left intake camshaft Hall sensor (B6/4). | On replacing cylinder head cover (4). | |
| AR15.12-P-2148MNL | |||
| 16 | Remove air filter housing brackets. | On replacing cylinder head cover (4). | |
| 17 | Remove slide rail at cylinder head cover (4). | On replacing cylinder head cover (4). If damage is present, ↓ Replace slide rail at cylinder head cover (4). |
|
| Check | |||
| 18 | Check camshaft bearing points in cylinder head cover (4), cylinder head and camshafts for galling and score marks. | ||
| General information on checking camshafts and bearing points of camshafts | AH05.20-P-1000-09SZ | ||
| If galling and score marks are present, ↓ Replace cylinder head cover (4), cylinder head and camshafts. |
AR01.30-P-5770MNL | ||
| Clean | |||
| 19 | Clean sealing surfaces at cylinder head and cylinder head cover (4). | AR01.00-P-0050-01A | |
Do not use any sharp-edged tools or abrasive paper. Otherwise, this damages the sealing surfaces. |
|||
| Loctite 7063 (400 ml) cleaning spray | *BR00.45-Z-1046-04A | ||
| Loctite 7200 | *BR00.45-Z-1038-04A | ||
| 20 | Install in the reverse order. | ||
| 21 | Check oil level of engine and correct. | ||
| AP18.00-P-1812SKI | |||
| 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 | |
| 22 | Carry out engine test run and check engine for proper operation and leak tightness. | ||
| 23 | Install lower engine compartment lining. | AR61.20-P-1105LF | |
| 24 | Install upper engine cover. |
CRANKCASE VENTILATION SYSTEM, CYLINDER HEAD COVER
| Number | Designation | Engine 176 | ||
|---|---|---|---|---|
| BA01.20-P-1004-01J | Bolt, cylinder head cover to cylinder head/camshaft housing | Stage 1 | Nm | 10 |
| Stage 2 | ∠° | 90 | ||
TURBOCHARGER
| Number | Designation | Engine 176 | |
|---|---|---|---|
| BA09.40-P-1006-01ZA | Bolt, upper heat shield to bracket/side heat shield | Nm | 9 |
TURBOCHARGER
| Number | Designation | Engine 176 | |
|---|---|---|---|
| BA09.40-P-1007-01ZA | Bolt, side heat shield to cylinder head cover | Nm | 9 |
GROUND STRAP
| Number | Designation | Engine 176 | |
|---|---|---|---|
| BA15.10-P-1003-05F | Bolt, engine wiring harness ground to cylinder head cover | Nm | 9 |
ENGINE WIRING HARNESS
| Number | Designation | Engine 176 | |
|---|---|---|---|
| BA15.18-P-1001-01G | Bolt, engine wiring harness to cylinder head cover | Nm | 9 |
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 |