Remove/Install Left Cylinder Head - AR01.30-P-5770MNL
Engine 176 in model 217, 222
MODIFICATION NOTES
| 16.03.2021 | Check relevant sealing surfaces of engine for unevenness, score marks, etc. | Operation step 13. |
| 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 | Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | |
| Notice | Notes on coolant | AH20.00-P-2080-01KOA | |
| Notice | Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | |
| Notice | Notes on threaded connections fastened using a tightening angle-based tightening process | AH00.00-P-0020-01A | |
| Notice | Notes on threaded connections with aluminum screws/bolts | AH00.00-P-0006-01RM | |
| General information on work on gasoline direct injection system | AH07.00-P-2000-01A | ||
| Remove/install | |||
| 1 | Remove left charge-air distributor. | AR09.41-P-8684MNL | |
| 2 | Remove left secondary chain drive timing chain. | AR05.10-P-7614MNL | |
| 3 | Remove left secondary chain drive tensioning rail. | AR05.10-P-8129MNL | |
| 4 | Remove left secondary chain drive slide rails. | AR05.10-P-8481MNL | |
| 5 | Remove both camshafts of the left cylinder bank. | AR05.20-P-6993MNL | |
| 6 | Remove left exhaust manifold. | AR09.40-P-6026MNL | |
| 7 | Remove center low-pressure line from left cylinder head (1). | AR07.03-P-1121MNL | |
| 8 | Remove rear coolant line on left cylinder head (1). | *BA20.20-P-1002-01Q | |
| 9 | Loosen cylinder head bolts (2) in stages in the reverse order of the tightening procedure and remove. | Tightening procedure for cylinder head bolts | AR01.30-P-5800-01MNA |
| Tightening specifications for cylinder head bolts |
AR01.30-P-5800-07MNA | ||
| *BA01.30-P-1001-01N | |||
| 10 | Remove left cylinder head (1) from crankcase. General information on checking valves, valve seats and valve guides | AH05.30-P-1000-02SZ | |
| Clean | |||
| 11 | Cover threaded holes of cylinder head bolts (2) in crankcase with rags, blow out with compressed air, and clean off engine oil and coolant. | ||
| 12 | Clean sealing surfaces on left cylinder head (1) and crankcase with lint-free rag. | Assembly cleaner | *BR00.45-Z-1028-04A |
| Check | |||
| 13 | Check sealing surfaces on left cylinder head (1) and crankcase for cracks and unevenness. | If unevenness, score marks, etc. exist: ↓ Replace affected component. |
|
| 14 | Install in the reverse order. | ||
| 15 | Change engine oil and oil filter element. | ||
| AP18.00-P-0101MNL | |||
| 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 | |
| 16 | Carry out engine test run and check engine for proper operation and leak tightness. | ||
| 17 | Install lower engine compartment lining. | AR61.20-P-1105LF | |
| 18 | Install upper engine cover. |
CYLINDER HEAD
| Number | Designation | Engine 176 | |||
|---|---|---|---|---|---|
| BA01.30-P-1001-01N | Bolt, cylinder head to crankcase | M7 | Nm | 15 | |
| M11 | Stage 1 | Nm | 40 | ||
| Stage 2 | ∠° | 90 | |||
| Stage 3 | ∠° | 90 | |||
| Stage 4 | ∠° | 90 | |||
RADIATOR, COOLANT HOSES
| Number | Designation | Engine 176 in model 217, 222 Engine 176 in model 463 up to model year 2019 | |
|---|---|---|---|
| BA20.20-P-1002-01Q | Bolt, coolant feed pipe to crankcase/cylinder head/engine carrier/belt tensioner | Nm | 9 |
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1028-04A | Assembly cleaner | A 000 986 56 01 |