Removing and installing fuel pick-up unit — AUDI

AAS AAT ABP AEL AHU
Special tools and workshop equipment required

Fuel gauge sender wrench 3087

Fuel pump wrench 3214

Removing

Heed safety precautions => Page
20-1
.

Observe rules for cleanliness =>Page
20-3
.

When removing fuel pick-up unit, fuel tank must not be more than 2/3 full. Drain fuel tank if necessary. Procedure => Page
20-32
.

Remove luggage compartment lining.

Avant:

Remove load compartment floor.
If necessary, fold forward right backrest of rear seat bench.

All models:

Unscrew cover -arrows-.

Unplug connector -2- for fuel gauge sender.
Detach fuel return pipe -4- and breather pipe -1- and unscrew fuel supply pipe -3-.

Vehicles with auxiliary heater:

Additionally disconnect fuel supply pipe to auxiliary heater.

All models:

Attention:
When removing fuel pick-up unit, fuel tank must not be more than 2/3 full.
Use fuel gauge sender wrench 3087 to unscrew locking ring.

Lift fuel gauge sender carefully out of opening in fuel tank.
Detach fuel return pipe -1- on inside of fuel gauge sender.
Unscrew fuel supply pipe -2-.

Vehicles with auxiliary heater:

Additionally disconnect fuel supply pipe to auxiliary heater.

All models:

Insert fuel pump wrench 3214 through fuel tank opening and apply at fuel pick-up unit.

Turn fuel pick-up unit anti-clockwise by approx. 15° as far as stop.
Notch -1- must be in front of mark -2- (bayonet lock)

Take out fuel pick-up unit.

Note:

For ease of illustration, baffle housing is shown without fuel tank.

Installing

Install in reverse order, paying attention to the following:

Note:

Secure all hose connections with standard hose clamps.

=> Parts List

Insert fuel pick-up unit in fuel tank.
Insert fuel pick-up unit in baffle housing in fuel tank such that notch -1- at fuel pick-up unit coincides with mark -2- at baffle housing.
Fuel pick-up unit can be pressed down to a noticeable extent

Note:

For ease of illustration, baffle housing is shown without fuel tank.

Insert fuel pump wrench 3214 through fuel tank opening and apply at fuel pick-up unit.

Turn fuel pick-up unit clockwise by approx. 15° as far as stop.
Notch -1- must be in front of mark -3- (bayonet lock)

Replace O-ring for fuel gauge sender.
Insert fuel gauge sender in fuel tank.

Attach fuel supply pipe -2- and fuel return pipe -1- as shown.

Pay attention to installation position of fuel gauge sender.
Tab -2- at fuel gauge sender must be located between raised areas -1- and -3- at fuel tank

Note:

Arrow faces in direction of travel.

Use fuel gauge sender wrench 3087 to secure locking ring.

Screw on fuel supply pipe -3-.
Attach fuel return pipe -4- and breather pipe -1- and tighten hose clamps.
Attach connector -2-.

Tightening torques

Component · Nm
Supply pipe to sender housing / (union nut) · / 23
Supply pipe to sender housing / (banjo bolt) · / 23
Hose clamps · 2