Removing And Installing Suction-Jet Pump - Volkswagen CC 2012 Workshop Manual

CC 2012 ➤ , Passat 2011 ➤ , Passat Variant 2011 ➤
Fuel supply system, petrol engines - Edition 05.2019
Continued for all vehicles
– Pull connector -1- off flange -3-.
– Check contacts on plug and on fuel delivery unit for damage.
– Connect test instrument adapter/DSO (5-pin) - VAS 5565- to
connector and fuel delivery unit.
– Connect pick-up clamp -A- to red terminal with lettering "pick-
up clamp" for test instrument adapter/DSO (5-pin) - VAS
5565- .
– Start engine and run it at idling speed.
– Measure current draw of fuel pump.
• Specification: max. 10 amps
Note
The starting current for the fuel pump can be briefly above
♦
specifications when starting the engine.
If the fault in the fuel system is only sporadically evident, the
♦
check can also be carried out during a road test. A 2nd person
is required to do this, however.
If the current draw is exceeded:
– Check fuel lines for possible restrictions (kinks) or blockages.
– Remove fuel delivery unit and check for contamination
⇒ "2.2 Removing and installing fuel delivery unit, fuel gauge
sender", page 43 .
– Check fuel pressure
⇒ "8.1.2 Checking fuel pressure", page 76
If no fault is detected:
– Renew fuel delivery unit
⇒ "2.2 Removing and installing fuel delivery unit, fuel gauge
sender", page 43 .
8.2 Removing and installing suction-jet
pump
Special tools and workshop equipment required
106
Rep. gr.20 - Fuel supply system
.