Volkswagen Golf / Golf GTI / Jetta. Manual — part 68

19-35

If the coolant pump does not start:

- Replace After-Run Coolant pump

-V51-.

If the coolant pump starts:

Checking activation

- Switch ignition off and on again.

Note:

This check must be performed within
10 minutes after switching ignition
off.

If the LED does not light up:

Electrical Wiring Diagrams,

Troubleshooting & Component
Locations

- Connect diode test lamp VAG

1527 B to disconnected connector
for After-Run Coolant pump -V51-
with adapter cables from VAG
1594 A.

LED must light up.

- Locate and eliminate open circuit

referring to wiring diagram:

Cooling system components, servicing

20-1

Components of fuel supply
system, servicing

Note:

Hose connections are secured with either

spring-type or clamp-type clips.

Always replace clamp-type clips with spring

type clips.

Fuel hoses on engine must only be secured

with spring-type clips. The use of clamp or
screw-type clips is not permitted.

Removing and installing fuel tank with attachments
and fuel filter

Page 20-2

.

Observe safety precautions

Page 20-12

.

Observe rules for cleanliness

Page 20-14

Observe crash fuel shut-off

Page 20-25

.

Servicing parts of the EVAP system

Page 20

41

.

Servicing parts of Electronic Power Control (EPC)

Page 20-66

.

Assembly tool VAS 5024 or hose clip pliers

VAG 1921 are recommended for installing
spring-type clips.

Components of fuel supply system, servicing

20-2

Fuel tank,
fuel filler
and
attachments,
removing
and
installing

1 - Sealing

cap

2 - Seal

Replace

if
damaged

3 - Securing

bolt

4 - Tank

flap unit

With

rubber
cup

5 - Breather

line

Black

Check if

seated
securely

Clipped

onto
top of
fuel
tank

6

-

Ground
connection

Check if

seated
securely

Components of fuel supply system, servicing

20-3

7 - Breather

line

White

Check

for
secure
seating

Press

together
at front
to
release

From

union
piece

Page
20-
41

,

item -
1 -

8 - Gravity

valve

To

remove
valve
unclip
upward
out of
support

Check

valve
for
through
flow

Valve

vertical:
Open

Valve

tilted
45 :
Closed

9 - Seal

Components of fuel supply system, servicing