Check Cylinders For Leaks - AR01.00-P-1300MRA
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Engine 177, 274.9, 276.8 in model 205
Engine 274.9, 276.8 in model 253
Shown on ENGINE 274.910 in MODEL 205
| 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 | |
| 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 pressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. |
AS20.00-Z-0001-01A | |
| 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 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 buttoned-up and snug-fitting work clothes. Do not touch hot or rotating parts. | AS00.00-Z-0005-01A | |
| Remove | |||
| 1 | Warm up engine to normal operating temperature | ||
| 2 | Switch off ignition and store transmitter key outside of transmission range (at least 2 m) | ||
| 3 | Remove spark plugs | ||
| Engine 276.8 in model 205, 253 | AP15.10-P-1580D | ||
| Engine 274.9 in model 205, 253 | AP15.10-P-1580CWF | ||
| Engine 177 in model 205 | AP15.10-P-1580C | ||
| 4 | Unscrew cap of coolant expansion reservoir | ||
| 5 | Remove oil filler cap | ||
| 6 | Remove engine air intake duct upstream of air filter | Engine 274.9 in model 205, 253 | |
| 7 | Remove center and front lower engine compartment paneling | Engine 177 in model 205 | AR61.20-P-1105LW |
| 8 | Remove charge air cooler and place to one side with attached coolant hoses | Engine 276.8 in model 205, 253 | AR09.41-P-6819MMV |
| 9 | Attach TDC detection device to the cylinder to be checked | ||
| 10 | Rotate engine at crankshaft center bolt in direction of engine rotation until piston of cylinder to be checked is at top dead center (TDC) | Fig 3 | |
| 11 | Attach TDC detection device to the cylinder to be checked | ||
| 12 | Attach pressure loss tester (01) to the cylinder to be checked | Engine 177 in model 205 | AR01.00-P-1300-01MNA |
| Engine 274.9 in model 205, 253 Engine 276.8 in model 205, 253 |
AR01.00-P-1300-01VA | ||
| Fig 2 | |||
| Fig 4 | |||
| Check | |||
| 13 | Apply compressed air to the cylinder to be checked and read off pressure loss at pressure loss tester (01) | Cylinder leakage: permissible loss total indication | *BE01.00-P-1001-02Z |
| Cylinder leaktightness: Permissible losses at valves and cylinder head gasket | *BE01.00-P-1002-02Z | ||
| Cylinder leaktightness: Permissible losses at pistons and piston rings If the crankshaft rotates. ↓ Install retaining lock for crankshaft/starter ring gear. |
*BE01.00-P-1003-02Z | ||
| Engine 276.8 in model 205, 253 | AR03.30-P-5000MMV | ||
| Engine 274.9 in model 205, 253 | AR03.30-P-5000MRA | ||
| Engine 177 in model 205 | AR03.30-P-1600-06MNA | ||
| Fig 1 | |||
| Fig 3 | |||
| Install | |||
| 14 | Remove retaining lock | For an installed retaining lock. Engine 276.8 in model 205, 253 |
AR03.30-P-5000MMV |
| Engine 274.9 in model 205, 253 | AR03.30-P-5000MRA | ||
| Engine 177 in model 205 | AR03.30-P-1600-06MNA | ||
| *BA27.40-P-1008-01A | |||
| Fig 1 | |||
| 15 | Detach pressure loss tester (01) | Fig 2 | |
| 16 | Remove thread adapter | Fig 4 | |
| 17 | Install charge air cooler | Engine 276.8 in model 205, 253 | AR09.41-P-6819MMV |
| 18 | Install center and front lower engine compartment paneling | Engine 177 in model 205 | AR61.20-P-1105LW |
| 19 | Install engine air intake duct upstream of air filter | Engine 274.9 in model 205, 253 | |
| 20 | Install the oil filler cap | ||
| 21 | Screw down cap of coolant expansion reservoir | ||
| 22 | Install spark plugs | ||
| Engine 276.8 in model 205, 253 | AP15.10-P-1580D | ||
| Engine 274.9 in model 205, 253 | AP15.10-P-1580CWF | ||
| Engine 177 in model 205 | AP15.10-P-1580C |
CYLINDER LEAKAGE
| Number | Designation | Engine all | |
|---|---|---|---|
| BE01.00-P-1001-02Z | Cylinder leakage: permissible loss total indication | % | ≤ 25 |
CYLINDER LEAKAGE
| Number | Designation | Engine all | |
|---|---|---|---|
| BE01.00-P-1002-02Z | Cylinder leaktightness: Permissible losses at valves and cylinder head gasket | % | ≤ 10 |
CYLINDER LEAKAGE
| Number | Designation | Engine all | |
|---|---|---|---|
| BE01.00-P-1003-02Z | Cylinder leaktightness: Permissible losses at pistons and piston rings | % | ≤ 20 |
HOUSING
| Number | Designation | Transmission 722.9 | ||
|---|---|---|---|---|
| BA27.40-P-1008-01A | Bolt, automatic transmission to engine | M10 X 40 | Nm | 38 |
| M10 X 45 | Nm | 38 | ||
| M10 X 90 | Nm | 38 | ||
| M12 | Nm | - | ||