Volkswagen CC 2012 Workshop Manual page 89

• Fuel pressure OK and pressure tester - VAS 6550- connected.
Check fuel pressure
⇒ "8.1.2 Checking fuel pressure", page 76
CAUTION
Risk of fire due to escaping fuel.
Risk of severe injuries and burns.
– Before testing, check all connected lines for secure fit by
pulling.
– Take any fuel-soaked cloths away from area of vehicle.
Test sequence
– Actuate fuel pump with final control diagnosis to build up fuel
pressure.
– Read off fuel pressure on pressure gauge.
• Specification: 4.0...7.0 bar
– Observe pressure drop on pressure gauge. After 10 minutes,
the pressure must not drop by more than 1.0 bar.
If the pressure drops further:
– Actuate fuel pump with final control diagnosis to build up fuel
pressure.
CC 2012 ➤ , Passat 2011 ➤ , Passat Variant 2011 ➤
Fuel supply system, petrol engines - Edition 05.2019
.
85
8. Fuel pump