Multiple Cylinders

Multiple cylinders

Checking the fuel injection system and components

Hint: The diagnostic trouble code (DTC) may have been caused by damaged camshaft control (actual value for camshaft angle deviates from the desired value). If the diagnostic trouble code (DTC) for camshaft control is stored it must be remedied first.

Check the spark plugs. Check for cracks in the porcelain. Check the spark gap. Check for carbon and other deposits. If uncertain, replace the spark plugs.
Check that the engine oil level is correct.
Check for air leakage in the intake system.
Check the function of the crankcase ventilation.
Check the fuel pressure and residual pressure.
Check the engine for leaks.
Check the flywheel for damage.

Other information
- Check for air leaks in the intake system Air Leaks in the Intake System, Checking
- Checking fuel and residual pressures, B5244T5, B5254T2 Checking Fuel and Residual Pressures
- Cylinder leakage test Cylinder Leakage Test






Continue - Verification

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Verification




Verification

Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off
- Reconnect connectors, reinstall components
- Start the engine
- Check whether the fault counter counts previously faulty cylinders.





Does the fault counter count upwards?

Yes - VERIFICATION FAILED

No - VERIFIED

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VERIFIED - Fault Found

VERIFICATION FAILED - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - FAULT-TRACING FAILED

No - Attempt New Test

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FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the fuel injection system and components

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