Replace fuel filter

AP47.20-G-0780CH

Replace fuel filter

15.06.2018

Engine

457.9, 458.9 in model 000.001

1

Fuel filter cap

2

Sealing ring

3

Fuel filter element

 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

 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

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-N-5000-01H



Remove

1

Open cap of fuel tank and close again.

 Open cap to dissipate the overpressure in the fuel tank.

2

Clean are surrounding fuel filter module.

3

Unscrew fuel filter cap (1) of fuel filter and lift up slightly.

 Remove fuel filter cap (1) with fuel filter element (3) only after the fuel has drained out of the fuel filter housing.

4

Remove fuel filter cap (1) of fuel filter element (3) from fuel filter housing and unclip fuel filter element (3) by pressing at side.


Ensure that no foreign objects enter the fuel filter housing . Do not wipe out the fuel filter housing under any circumstance.
Otherwise malfunctions and damage can occur.



Install

5

Replace sealing ring (2) on fuel filter cap (1) of fuel filter and grease lightly.

MB multipurpose grease, 400 g

*BR00.45-Z-1017-06A

6

Insert new fuel filter element (3) into fuel filter cap (1) of fuel filter.

7

Screw on fuel filter cap (1) of fuel filter element (3) then tighten.

 Cap on fuel filter housing

*BA47.20-N-1008-02K

8

Start engine and bleed fuel system.

 See information from body manufacturer.
^Run engine for approx. 1 min. The fuel system is ventilated automatically.

If the engine fails to start or if it stops running,



manually bleed fuel system.



AR47.00-G-1720CI



Check

9

Check for leak tightness of fuel filter module with engine running and switch off engine.

 Visual inspection.

10

Confirm replacement of fuel filter element (3) in maintenance booklet.

 Fuel filter

Number

Designation

ENGINE 457.9, 458.9

BA47.20-N-1008-02K

Cap on fuel filter housing

Nm

25

Repair materials

Number

Designation

Order number

BR00.45-Z-1017-06A

MB multipurpose grease, 400 g

A 001 989 34 51 11