1 | Spark plug |
2 | Ignition coil |
3 | Compression pressure recorder |
4 | Throttle valve |
S01.00-2501-06
| Remove/install | ||
1 | Warm up engine to normal operating temperature | Coolant temperature 80°C. | |
Danger | Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC) | Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. | |
2 | Remove spark plugs (1) | ||
| |||
3 | Disconnect connector for ignition coil (2) | ||
4 | Install in the reverse order | ||
Check | |||
Warning | 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. | |
5 | Crank engine with starter | ||
6 | Guide compression recorder (3) into bore of spark plug (1) | Compression tester | |
7 | Depress accelerator pedal as far as it will go | ||
8 | Crank engine with starter | To check compression pressure, crank engine through at least 8 cycles. | |
9 | Carry out the test procedure on the other cylinders in the same way | ||
| Check | ||
10 | Check compression pressure | When new | |
Wear limit (limit value) | |||
Permissible difference between individual cylinders |
001 589 76 21 00
Compression tester
Referenced documents
- ap1510s1580a Replace spark plugs
- 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.
- as0000z003501a Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)