- Is the measurement value OK?
YES
The measurement value is OK.Test prerequisite
- Test pressure gage is connected.
Test sequence
- Switch off ignition.
- Insert bridge.:
- Bridge between sockets [F.2] 98 and [F.17] 113 of the 126-pole socket box tester.
- Switch on ignition.
- Component M3 (Fuel pump) runs.
- Switch off ignition.
- Remove bridge.
Specified value
- Pressure after 30 minutes:[> 2.5] bar
Question
- Is the measurement value OK?
YES
The measurement value is OK.Further possible causes of fault
- Test delivery of component M3 (Fuel pump).
NO
The measurement value is not OK.Possible cause and remedy
- In the event of slow pressure drop:Check component Y62 (Fuel injectors).
- In the event of rapid pressure drop:Check valve in component M3 (Fuel pump)
NO
The measurement value is not OK.Possible cause and remedy
- N10/2f4 (Fuse 4)
- N10/2kA (Fuel pump relay)
