ar4710s4100b

Remove/install fuel tank

Type ar · topic 47.10 · version 0109 · 2009-12-07

Applies to: MODEL 638 with ENGINE 601, 611

Where it sits

Function group 1 Engine › 47 Fuel system, powertrain energy supply › 47.10 Fuel tank — Series 601 · Series 611 · Series 638

EinPAS 16 Fuel/power supply to engine › 16.10 Fuel supply › 16.10.40 Fuel tank/filling fixture — Series 601 · Series 611 · Series 638

AR47.10-S-4100B

Remove/install fuel tank

23.11.09

MODEL 638 with ENGINE 601, 611

Remove/install fuel tank

S47.10-2000-09

1 Fuel tank

2 Retaining clip

3 Self-locking bolt

4 Washer

5 Nut

6 Shield

7 Bolt

8 Filler neck hose

9 Securing clamp

10 Gasket

11 Vent pipe

12 Fuel return line

13 Fuel feed line

14 Auxiliary heater fuel line

15 Cable tie

16 Plastic holder

X4 Fuel level indicator connector

Remove/install

1

Disconnecting the battery

Installation: Code radio, set the clock.

AR54.10-S-0005A

Danger!

Risk of explosion caused by ignition of flammable products, risk of poisoning caused by inhaling fuel vapors or swallowing fuel as well as risk of injury to skin and eyes exposed to fuel.

No fire, sparks, open flames or smoking.
Only pour fuels into suitable and appropriately marked containers.

Wear protective clothing when handling fuel.

AS47.00-Z-0001-01A

2

Drain fuel tank (1)

AR47.10-S-4001A

3

Take out vent tube (11) on shield (6)

4

Remove protective shield (6)

*BA47.25-N-1002-01A

5.1

Cut off cable tie (15) at vent pipe (11)

Only for vehicles from VIN 407'851.

Replace cable tie (15).

5.2

Unlock and unplug connector on vent tube (11)

Only for vehicles up to VIN 407'850.

Collect escaping fuel.

6

Unlock and unplug connector for fuel feed line (13) and fuel return line (12)

Collect escaping fuel. The colors of the fuel lines are

-fuel feed line: white

-fuel return line: black.

7

Detach auxiliary heater fuel feed line (14)

Only with code (H12) Warm water auxiliary heater

8

Unhook vent tube (11) from plastic holder (16) on underfloor

9

Loosen mounting clamp (9) on filler neck hose (8) and detach filler neck hose (8) on fuel tank (1)

Installation: Check condition of seal (10); replace if necessary. An excessively high tightening torque for the mounting clamp (9) leads to clamping of the non-return throttle valve in the fuel tank fitting (1).

Collect escaping fuel.

10

Remove mounting frame bow (2) and lower fuel tank (1) slowly until connector on the fuel level indicator/fuel pump (X4) is accessible

Secure fuel tank (1) using a suitable jack stand against falling down. Install new self-locking bolts (3).

Observe installation position of shims (4).

*BA47.10-N-1001-01A

11

Disconnect fuel level indicator/fuel pump (X4) connector and unhook electrical line from the brackets on the fuel tank (1)

12

Cut off clamp from vent tube (11) on fuel tank (1) and detach vent tube (11)

Only for vehicles from VIN 407'851.

Collect escaping fuel.

Fit a new hose clamp.

13

Remove fuel tank (1)

14

Install in the reverse order

Checking

15

Check fuel system (1) for leaktightness

in the area of the fuel tank

Fuel tank

Number

Designation

Model
638

BA47.10-N-1001-01A

Clamp attaching fuel tank to longitudinal member

Nm

28

Fuel pipes/hoses

Number

Designation

Engine 601.942/
970

Engine 611.980

BA47.25-N-1002-01A

Cover for filler line, vent line to body/longitudinal member

Nm

8

8

Referenced documents