Volkswagen Golf / Golf GTI / Golf Variant. Manual — part 750
Version 6
Connector coupling with right and left release buttons -arrows-:
Opening
– Press the connector coupling -1- in the direction of the
-arrow- and hold it down.
– Press the release buttons -arrows- and remove the connector
coupling.
Note the color coding when installing. Refer to
The connector couplings must »audibly« engage when locking.
– Pull on the connector coupling to check for secure fit.
Version 7
Connector coupling -1- with right and left release buttons -2-:
Opening
– Press the connector coupling -1- in direction of the -arrow A-
and hold it down.
– Push the release buttons -2- in the direction of -arrow B- and
remove the connector coupling -1-.
Note the color coding when installing. Refer to
The connector couplings must »audibly« engage when locking.
– Pull on the connector coupling to check for secure fit.
5
Fuel Filter
The pressure relief valve and the fuel filter are integrated in the
fuel delivery unit and cannot be replaced separately. Refer to
⇒ “2.1 Overview - Fuel Delivery Unit/Fuel Level Sensor”,
.
6
EVAP System
⇒ “6.1 Connection Diagram - EVAP System”, page 67
⇒ “6.2 Overview - EVAP System”, page 69
⇒ “6.3 EVAP Canister, Removing and Installing”, page 70
⇒ “6.4 Fuel Tank, Checking Ventilation”, page 72
⇒ “6.5 Fuel System, Checking for Leaks”, page 76
6.1
Connection Diagram - EVAP System
⇒ “6.1.1 Connection Diagram - EVAP System, with Fuel Tank
Leak Detection”, page 67
⇒ “6.1.2 Connection Diagram - EVAP System, without Fuel Tank
6.1.1
Connection Diagram - EVAP System,
with Fuel Tank Leak Detection
Note
The fuel tank leak detection function is based on the premise that
the fuel systems creates a natural vacuum when the fuel in the
fuel tank becomes colder. The temperature and pressure meas‐
urements are required for the fuel tank leak detection. The tem‐
perature sensor is integrated in the Fuel Tank Leak Detection
Control Module - J909- . The Fuel Tank Pressure Sensor - G400-
is installed in the pressure regulating valve. The system is con‐
sidered to be closed when the measured vacuum is 2.5 mbar as
the fuel tank temperature drops. If there is no vacuum, then there
is a leak in the fuel system, which will result in an entry in the
engine control module Diagnostic Trouble Code (DTC) memory.
1 - EVAP Canister
❑ Component location:
under the wheel hous‐
ing liner in the right rear
wheel housing
❑ Removing and Instal‐
ling. Refer to
2 - Air Filter
3 - Pressure Regulating Valve
❑ With Fuel Tank Pres‐
sure Sensor - G400-
4 - Bleeder Line
❑ from EVAP canister to
engine
5 - Cap
❑ Seal must not be dirty or
damaged
6 - Fuel Tank Leak Detection
Control Module - J909-
❑ With temperature sen‐
sor
7 - Fuel Supply Line
❑ Black
8 - Bleeder Line
❑ White
9 - EVAP Canister Purge Reg‐
ulator Valve 1 - N80-
❑ Checking using the Vehicle Diagnostic Tester .
6.1.2
Connection Diagram - EVAP System,
without Fuel Tank Leak Detection
Connection Diagram on EVAP Canister
1 - -A- Vent Connection
2 - -T- Connection to Fuel Tank
3 - -M- to EVAP Canister Purge Regulator Valve 1 - N80-
4 - Cap
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