Removing and installing circulation pump V55 — VW

Removing and installing
circulation pump
V55
Special tools and workshop equipment required
Hose clamps up to 25 mm
3094
Pliers for spring-type clips
VAS 5024A
Drip tray for workshop hoist
VAS 6208
Removing
Switch off electrical consumers.
Switch off auxiliary/supplementary heater and switch off ignition.
Remove front part of front right wheel housing liner
General body repairs, exterior
Rep. gr.
66
Wheel housing liner; Removing and installing front wheel housing liner
.
Clamp off coolant hoses using
hose clamps up to 25 mm
3094
.
CAUTION
When the engine is warm, the cooling system is under pressure. Danger of scalding due to steam and hot coolant.
There is a risk of injury to the skin and parts of the body due to scalding.
Wear protective gloves.
Wear eye protection.
Proceed as follows to release the pressure: cover the cap of the coolant expansion tank with a cloth, and open it carefully.
Unfasten O-type clips
4
and pull coolant hoses off
circulation pump
V55
2
.
Disconnect connector
1
of
circulation pump
V55
2
at auxiliary/supplementary heater or at
circulation pump
V55
(depending on version).
Remove bolt
3
.
Remove
circulation pump
V55
2
.
Installing
Bolt on
circulation pump
V55
2
.
Connect connector
1
of
circulation pump
V55
2
at auxiliary/supplementary heater or at
circulation pump
V55
(depending on version). Ensure proper engagement.
Install right coolant hose with clamp
4
.
Open
hose clamps up to 25 mm
3094
on right coolant hose until coolant level is at top edge of
circulation pump
V55
.
Install left coolant hose with clamp
4
.
Ensure cables are routed correctly and connectors remain dry.
Remaining installation steps are performed in reverse order of removal.
If
circulation pump
V55
is renewed, set operating hours counter of
circulation pump
V55
to zero using Guided functions of
Vehicle diagnostic tester
.
Read event memory and erase entries
Vehicle diagnostic tester
in
“Guided Fault Finding”
mode.
If additional air entered cooling system during assembly, coolant circuit must be bled
Chapter
.
Start auxiliary/supplementary heater and run it at full load for at least 10 minutes so that fuel line is bled completely and you can check operation of auxiliary/supplementary heater.
Specified torque
Wheel housing liner; Removing and installing wheel housing liner
General body repairs, exterior
Rep. gr.
66
Wheel housing liner; Removing and installing front wheel housing liner
Component to be tightened
Specified torque
Securing bolt for
circulation pump
V55
8 ± 1 Nm