Inspect cylinders for leaks - AR01.00-P-1300HV
WARNING: This page does not describe the selected car, but rather 25 other vehicles, including the 2007 Mercedes-Benz C350, 2007 Mercedes-Benz C280, 2007 Mercedes-Benz C230, 2006 Mercedes-Benz C55, and 2006 Mercedes-Benz C350. However, it is still accessible from the selected car via links, so may be relevant.
ENGINE 112, 137, 285
ENGINE 112.945 in MODEL 463.209 /232 /233 /244 /245 /250
ENGINE 113.962 in MODEL 463.206 /240 /241 /247 /248 /249 /254
ENGINE 113.982 in MODEL 463.243 /246
ENGINE 113 (except 113.995) in MODEL 129, 163, 202, 203, 208, 209, 210, 211, 215, 220, 230
Shown on Engine 112
| Remove, Install | |||
| Risk of accident from vehicle starting off by itself when engine running. Risk of injury suffered in the form of bruises or burns to the hands when reaching in while the engine cranks or runs | Secure vehicle to prevent it from moving off by itself. Wear closed and close-fitting work clothes. Do not grasp hot or rotating parts. |
AS00.00-Z-0005-01A | |
| 1 | Bring engine to operating temperature (approx. 80°C) | ||
| Risk of injury to skin and eyes suffering scalding from contact with hot coolant spray. 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 bottles. Wear protective gloves, protective clothing and eye protection. |
AS20.00-Z-0001-01A | |
| 2 | Open cap (2) of expansion reservoir | In Model 463 with Engine 112, 113, a cap (2) with a detent is built-in |
|
| Turn cap carefully up to the first pre-detent, relieve the pressure and then unscrew the cap (2). | |||
| 3 | Remove a spark plug (19) from each cylinder | ||
| Model 202, 208, 209, 210 with Engine 112, 113. | AP15.10-P-1580A | ||
| Model 203, 170 with Engine 112. | |||
| Model 163 with Engine 112, 113. | AP15.10-P-1580GH | ||
| Model 215, 220 with Engine 137. | AP15.10-P-1580L | ||
| Model 230.474/475, 211, 220 with Engine 112, 113 | AP15.10-P-1580AB | ||
| Model 240 with Engine 285. | AP15.10-P-1580H | ||
| Model 463 with Engine 112,113 | AP15.10-P-1580GA | ||
| 4 | Position piston of cylinder to be tested to ignition TDC | ||
| 5 | Connect cylinder leak tester (04) | ||
| *WH58.30-Z-1015-05A | |||
| 6 | Remove the oil filler cap (3) | ||
| Inspection | |||
| 7 | Apply compressed air to the cylinder, read off pressure loss on the cylinder leakage tester (04) and determine the cause if there is an increased pressure loss | Cylinder leaktightness 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 | *BE01.00-P-1003-02Z | ||
| If the crankshaft rotates: ↓ | |||
| Engine 112, 113, 137. | |||
| Install retaining lock for crankshaft | AR03.30-P-5000B | ||
| Engine 285. | |||
| Lock crankshaft with counterholder. | |||
| Fig 2 | |||
| 8 | Conduct the test of the other cylinders in the firing order of the engine | AR01.00-P-1300-03HA | |
| 9 | Install in the reverse order |
CYLINDER LEAKAGE
| Number | Designation | All Engines | |
|---|---|---|---|
| BE01.00-P-1001-02Z | Cylinder leakage permissible loss total indication | % | < 25 |
| BE01.00-P-1002-02Z | Cylinder leakage permissible losses at valves and cylinder head gasket | % | ≤ 10 |
| BE01.00-P-1003-02Z | Cylinder leakage permissible losses at pistons and piston rings | % | ≤ 20 |
COMMERCIALLY AVAILABLE TOOLS
| Number | Designation |
|---|---|
| WH58.30-Z-1015-05A | Cylinder leakage testing unit |