Fuel Pump: Testing and Inspection

13 31 029 Checking Delivery Pressure of Fuel Pump (COOPER S)






Special tools required:
- 11 8 480
- 13 1 130
- 13 3 063
- 13 5 222






Necessary preliminary tasks:
- Switch off ignition
- Remove intercooler

Important!
The fuel in the fuel lines is under pressure (approx. 3 bar)!






Recycling:
Catch and dispose of escaping fuel.
Observe country-specific waste-disposal regulations.






Detach dust cap (1) from measuring valve on
injection pipe (2).






Important!
When working in engine compartment, always place special tool 11 8 480 on intercooler (1) (risk of damage).






Checking fuel pressure with diagnosis system:
Connect special tools 13 1 130 and 13 5 222 to pressure sensor of diagnosis system.
Checking fuel pressure with pressure gauge:
Attach special tools 13 3 063 and 13 1 130.






Connect special tool 13 1 130 first to pressure gauge or diagnosis system and then to fuel rail (1).

Install intercooler (2).






Measuring fuel pressure:
Start engine.
Check fuel delivery pressure.
Switch off engine.