Remove/install fuel tank

AR47.10-S-4100E

Remove/install fuel tank

15.08.2019

Model

447 with engine 274

with code ZL3 (National version for Latin America)

Model

447 with engine 622, 651, 654.9

Shown on model 447 with code H12 (Auxiliary water heater)

1

Fuel tank

2

Screw

3

Screw

4

Grommet

5

Fuel lines

6

Fuel line

7

Retaining bracket

8

Bolts

10

Ground cable

1

Fuel tank

9

Electrical connector

 Danger

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.

AS00.00-Z-0010-01A

 Danger

Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contactwith fuel.

No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only.
Wear protective clothing when handling fuel.

AS47.00-Z-0001-01A

 Danger

Risk of explosion caused by fuel vapors igniting, risk of poisoning caused by inhaling combustible gases and risk of injury caused by burns during and after operation of heater unit

Do not operate stationary heater, auxiliary heater or engine with heater booster in closed rooms or when refueling. Allow heater unit to cool down after operation and wear protective gloves.

AS83.70-Z-0002-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

 

Remove/install

1

Empty the fuel tank (1).

AR47.10-S-4001E

2

Remove fuel filler flap.

AR88.60-S-6023E

3

Remove screw (2).

4

Remove screw/bolt (3) and swivel bracket away out of working area

5

Release filler neck from the body.

6

Remove covers at vehicle jack lift support points.

Model 447 with engine 651
with code MX0 (BlueEFFICIENCY package)
Model 447 with engine 654.9

AR61.30-S-1001-04E

7

Raise vehicle.

AR00.60-S-1000E

8

Remove underfloor paneling at left.

Model 447 with engine 622.8

AR61.30-S-1001EH

Model 447 with engine 651
with code MX0 (BlueEFFICIENCY package)
Model 447 with engine 654.9

AR61.30-S-1001E

9

Remove grommet (4).

 The grommet (4) remains on the filler neck.

 Installation: Check grommet (4) for damage.

If damage is identified,



replace grommet (4).

10

Release and disconnect fuel lines (5) and collect escaping fuel.

 Installation: Note assignment of the fuel lines (5).

11

Seal openings in fuel lines (5) with the stop plugs.

 Record plug

*129589009100

12

Disconnect fuel line (6) and collect escaping fuel.

Model 447 with engine 622, 651, 654.9
with code H12 (Auxiliary hot-water heater)
Model 447 with engine 651, 654.9
with code HZ1 (Auxiliary heater (warm air))

 Installation: Replace clamp.

 Pliers for click clamps

*171589003700

13

Seal openings in fuel line (6) with the stop plugs.

 Record plug

*129589009100

14

Support fuel tank (1).



000 588 10 62 00 Support plate

WS26.00-P-3309B



000 588 11 62 00 Major assembly mount

WS01.00-P-0092B

 Secure the fuel tank(1) against falling down.

15

Remove screws (8) and remove mounting frame bows (7).

Topical note

Notes on using electrical or pneumatic screwdrivers/impact wrenches

AH00.00-N-0017-01A

 Installation: Reposition shims of retaining brackets (7) in previous installation position.

 Retaining bracket, fuel tank to longitudinal member

*BA47.10-N-1001-01A

16

Lower the fuel tank (1) until electrical connector (9) is accessible.

17

Release and disconnect electrical connection(9).

18

Continue lowering the fuel tank (1) until the ground line (10) is accessible.

19

Remove ground line (10) on filler neck.

20

Lower fuel tank (1) completely and remove.


Never handle fuel tank (1) by the filler neck.
Damage will occur otherwise to the filler neck.

21

Remove the fuel pump and fill level sensor.

If the fuel tank (1) is replaced:

AR47.20-S-7000E

22

Install in the reverse order



Check

23

Switch on ignition.


Before the engine is started, leave the ignition switched on up until the end of delivery from the fuel pump so that fuel is present at the high-pressure fuel pump when the engine is started.
Fuel system will otherwise be damaged.

 Warning

Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust.

Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area.

AS49.00-Z-0001-01A

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

24

Check fuel system for leak tightness with engine running.

 Fuel tank

Number

Designation

Model 447, 448

BA47.10-N-1001-01A

Retaining bracket, fuel tank to longitudinal member

Nm

56