AR01.00-P-1200B | Testing compression pressure | 30.11.05 |
ENGINE 112
Air filter positioned at vehicle side.
ENGINE 113
Air filter positioned at vehicle side.
P01.00-0372-06
01 Compression recorder
| Remove/install | ||
Danger! | Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the running engine | Secure vehicle to prevent it from moving by itself. | |
1 | Bring engine to operating temperature (approx. 80°C) | Onlt test compression when engine is at operating temperature. | |
2 | Remove engine trim panel | ||
3 | Remove air filter housing | ||
4 | Remove resonance pipe with resonance body | All except model 163 with engine 113.942/981. | |
- Disconnect plug connection for hot film mass air flow sensor (HFM-SFI) for this step and - unbolt resonance pipe at cylinder head cover. | |||
The resonance pipe is attached to the rear of the intake manifold with a plastic bracket. | |||
Do not damage plastic plate. | |||
5 | Remove spark plugs | Remove only one spark plug at each cylinder: | |
| Models 210, 208, 202 with engine 112 Model 210 with engine 113 | ||
| Model 163 with engines 112, 113 | ||
6 | Crank engine with starter. | Do not crank engine at steering lock but use contact switch of the compression recorder. | |
Crank engine several times with the starter in order to eliminate combustion residues in the cylinder. | |||
| Checking | ||
7 | Insert compression tester into spark plug bore | | |
8 | Open throttle valve | ||
9 | Crank engine with starter | Do not crank engine at steering lock but use contact switch of the compression recorder. | |
To check the compression pressure, crank the engine by at least 8 revolutions. | |||
10 | Carry out test procedure at the remaining cylinders in the same way | ||
11 | Compare measurements obtained with the specified pressures | ||
If necessary, if the pressure is below the minimum compression pressure or if permissible difference between individual cylinders is exceeded: | |||
Inspect cylinders for leaks | |||
12 | Install in the reverse order |
Compression pressure
Number | Designation | Engines | Engines | Engine 113.944 | |
BE01.00-P-1001-01D | Compression installation tolerance or new value | bar | 10...12 | 12 to 14 | 11 to 13 |
BE01.00-P-1002-01D | Compression pressure wear limit or limit value | bar | 8.0 | 9.0 | 10.0 |
BE01.00-P-1003-01D | Compression pressure permissible difference between individual cylinders | bar | 1.5 | 1.5 | 1.5 |
Compression pressure
Number | Designation | Engines | Engine | Engine 113.987/988/ | |
BE01.00-P-1001-01D | Compression installation tolerance or new value | bar | 11 to 13 | 11 to 13 | 9 to 12 |
BE01.00-P-1002-01D | Compression pressure wear limit or limit value | bar | 10.0 | 8.0 | 8.0 |
BE01.00-P-1003-01D | Compression pressure permissible difference between individual cylinders | bar | 1.5 | 1.5 | 1.5 |
001 589 76 21 00
Compression recorder
Referenced documents
- ap1510p1580a Replace spark plugs
- ap1510p1580gh Replace spark plugs
- ar0100p1300hv Inspect cylinders for leaks
- ar0110p0110v Cranking engine with starter.
- ar0707p1454a Remove/install hot film mass air flow sensor together with air intake pipe
- as0000z000501a 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.