Compression Check: Testing and Inspection

11 00 039 - Checking compression of all cylinders (M57T2)





Special tools required:
- 11 0 222
- 11 0 236






Necessary preliminary tasks:
- Remove all glow plugs Service and Repair





Warning!
On vehicles with manual transmission:
There must be no gear engaged during the starting operation.





Important!
To prevent the injectors from injecting, it is necessary to disconnect the injector plug connections.





Screw in special tools 11 0 222 and 11 0 236.

Note:
The compression test on all cylinders must have a constant battery voltage. If necessary, connect an auxiliary battery.
The number of engine revolutions must be the same for each cylinder during the compression test (the test result could be distorted).





Assemble engine.
Clear DDE fault memory.
Check function of DDE.