Volkswagen Golf / Golf GTI / Jetta. Manual — part 72

20-11

Note:

The fuel filter is illustrated viewed
from the front.

Fig. 4

Installation position of
screw-type clip for fuel
filter

- Install screw-type clip (arrow) as

shown in illustration.

Ensure sufficient clearance

between clip fastener and fuel
tank. Dimension "a" must be at
least 5 mm.

Components of fuel supply system, servicing

20-12

Safety precautions when working on the
fuel supply system

CAUTION!

When performing repair work, especially due
to the confined conditions in the engine
compartment, pay attention to the following:

Route all types of lines (e.g. for fuel,
hydraulics, EVAP system, coolant,
refrigerant, brake fluid and vacuum) as well
as electrical wiring so that the original
positions are restored.

Make sure sufficient clearance to all moving
or hot components.

When removing and installing the fuel gauge

sender or fuel pump (fuel delivery unit) from a full
or partly full fuel tank the following must be
observed:

WARNING!

Fuel supply lines are under pressure! Before
removing from hose connections, wrap a
cloth around the connection. Then release
pressure by carefully pulling hose off
connection.

Components of fuel supply system, servicing

20-13

Before commencing work, switch on exhaust

extraction system and place an extraction hose
close to sender opening in the fuel tank to
extract escaping fuel fumes. If no exhaust
extraction system is available, a radial fan with
a displacement greater than 15 m

3

/h can be

used (as long as motor is not in air flow).

Prevent skin contact with fuel! Wear fuel

resistant gloves!

For safety reasons, fuse No. 28 must be

removed from fuse holder before opening fuel
system as fuel pump can be activated by door
contact switch in driver's door.

Components of fuel supply system, servicing

20-14

Rules for cleanliness

When working on the fuel supply/injection

system, pay careful attention to the following 5
rules:

Thoroughly clean all unions and the adjacent

areas before disconnecting.

Place parts that have been removed on a clean

surface and cover. Do not use fluffy cloths!

Carefully cover opened components or seal, if

the repair cannot be carried out immediately.

Only install clean components: Only unpack

replacement parts immediately prior to
installation. Do not use parts that have been
stored loose (e.g. in tool boxes etc.).

When the system is open: Do not work with

compressed air if this can be avoided. Do not
move vehicle unless absolutely necessary.

Components of fuel supply system, servicing