Volkswagen Golf / Golf GTI / Golf Variant. Manual - part 753

– Set the valve -D- to “Hold”.
– Open the nitrogen bottle -H-.
– Connect the measuring hose -G- to the self-test connection

-B-.

– Set the valve -D- to “Test”.
– Using the pressure reducer -J- adjust the pressure to 25 mbar

(10 in. H2O).

– Set the valve -D- to “Hold”.
• The pressure must now be maintained for a minimum of two

minutes.
If the pressure is not maintained, check the tester.

Fuel System, Checking for Leaks:
– Connect the -KLI 9210/55-1- to the breather lines -A- “white

markings” as illustrated.

– Connect the measuring hose -G- from the -KLI 9210- to the -

KLI9210/55-1- .

– Connect the -KLI 9210- to the vehicle battery.
– Remove right rear wheel housing liner.

– Tightly close the hose to the air filter -arrow- using a hose

clamp.

– Set the valve -D- to “Test”. The fuel system is now filled.
– Watch the pressure gauge -C- and the flow meter -E-. The fuel

system is filled if the flow rate decreases and the pressure in‐

creases to 10 in. H2O (25 mbar).

– After the pressure has stabilized, set the valve -D- to “Hold”.
• The pressure must not drop below 8 in. H2O (20 mbar) after

five minutes.

If the pressure drops or if no pressure develops, then locate the

leak as follows:
– Set the valve -D- to “Test” and fill the system with smoke.
– While the fuel system is being filled, press the smoke gener‐

ator button -I- for approximately one minute.

The fuel system is now under pressure and filled with smoke.
– Check all the lines, hoses and the fuel filler cap for escaping

smoke.

Note

♦

Illuminate components and hoses with a strong flood light, the

smoke will be more visible.

♦

An ultrasonic sensor tester or commercially available leak

spray can also be used to locate leaks.

♦

Depending on how long fault finding lasts, the smoke gener‐

ator button may need to be pressed again. This ensures there

is enough smoke present in the fuel system.

♦

The installation opening inside the passenger compartment

must be opened to check the flange on the fuel pump and fuel

filter.

– Replace any leaking hoses or components.

7

Accelerator Mechanism

⇒ “7.1 Overview - Accelerator Pedal Module”, page 79
⇒ “7.2 Accelerator Pedal Position Sensors G79 / G185 , Remov‐

ing and Installing”, page 80

7.1

Overview - Accelerator Pedal Module

1 - Bolt

❑ 6 Nm

2 - Connector

❑ Pull on the connector to

make sure it is engaged

correctly and securely.

3 - Accelerator Pedal Module -

GX2-

❑ Contains

Accelerator Pedal Posi‐

tion Sensor - G79-

Accelerator Pedal Posi‐

tion Sensor 2 - G185-

❑ Removing and Instal‐

ling. Refer to

⇒ “7.2 Accelerator Ped‐

al Position Sensors

G79 / G185 , Removing

and Installing”,

page 80

 .

7.2

Accelerator Pedal Position Sensors -

G79- / -G185- , Removing and Installing

Removing
– Fold the carpet -1- forward in the direction of the -arrow-.

– Release and remove the connector -2- from the Accelerator

Pedal Module - GX2- .

– Remove the bolt -1-.
– Remove the accelerator pedal module -3- from the mounting.
Installing
Install in reverse order of removal. Note the following:
Tightening Specifications
♦ Refer to

⇒ “7.1 Overview - Accelerator Pedal Module”, page 79