Mercedes-Benz ML320. Service manual - part 492

AR47.25-P-1000-01A

Separate fuel lines from engine, reconnect

P47.25-0212-03

1

Release arm

2

Sealing ring

A

Release position

B

Assembly position

P47.25-0213-03

 The low pressure lines of the fuel system have plug connections 

with a release arm (1) in place of screw connections.
The lines are sealed by means of a seal (2).

Disconnecting

1

Press the release arms (1) down to the stop in release position 
as shown in picture A (arrow).

2

Disconnect connector on low-pressure line.

3

Pull back the release arms (1) again immediately to the stop 
into the assembly position as shown in picture B (arrow).

 The release arms (1) must not be kept over a long period in 

the release position (A) otherwise leaks can occur due to 
deformation of the low-pressure line.

Attaching

4

Check whether the release arm (1) is in the installed position 
(b).

 If the release arms (1) were kept for a long time in the 

release position (A) the low-pressure line must be replaced 
otherwise leaks can occur due to deformation of the low-
pressure line.

5

Insert connector on low-pressure line.

6

Ensure that the connector is firmly seated and free of leaks.

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AR47.10-P-4000GH

Empty fuel tank if fuel pump is faulty

28.10.97

MODEL 

163.113 with ENGINE 612.963

MODEL 

163.128 with ENGINE 628.963

MODEL 

163.136 with ENGINE 111.977

MODEL 

163.154 with ENGINE 112.942

MODEL 

163.157 with ENGINE 112.970

MODEL 

163.172 with ENGINE 113.942

MODEL 

163.174 with ENGINE 113.981

MODEL 

163.175 with ENGINE 113.965

P47.20-2076-06

1

Fondsitzkonsole

2

Cover of left C-pillar

3

Seat retaining cable

4

Wiring harness

P47.10-2077-09

84

Closing cover

90/10

Ground line (vacuum unit)

90/11

Fuel return line

90/12

Fuel feed line

90/13

Stationary heater connection

90/14

Extraction hose 

  

Remove, Install

 

Danger!

Risk of explosion from fuel igniting, risk of 
poisoning from inhaling and swallowing fuel 
as well as risk of injury to eyes and skin 
from contact with fuel.

Fire, sparks, open flames or smoking 
forbidden.
Pour fuels only into suitable and appropriately 
marked containers.

Wear protective clothing when handling fuel.

AS47.00-Z-0001-01A

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1.1

Unscrew bolts at rear of 2/3 seat bench and 
raise rear of seat bench

 Up to VIN A145272, X708318.

1.2

Remove covers at seat frame of 60% bench 
seat

 As of VIN A145273, X708319.

AR91.12-P-1100GH

 Only remove the covers which are 

identified in the document with A, D and E.

2.1

Fold 60% bench seat forward into footwell

 As of VIN A145273, X708319. See 

operator's manual.

3.1

Pull floor covering below rear seat mounting 
bracket (1) of 60% seat forward

 Carefully pull floor covering forward under 

the seat console to prevent it from tearing.

 As of VIN A145273, X708319.

4.1

Pull the floor covering forward under the front 
corner of the left C-pillar cover (2)

 Carefully pull the floor covering forward 

under the cover to prevent it from tearing.

 As of VIN A145273, X708319.

5

Cut into floor covering directly behind seat 
retaining cable (3)

 Ensure that the wiring harness (4) is not 

damaged when cutting the floor covering.

 As of VIN A145273, X708319. Broken 

line marks the cut.

6

Fold floor mat back

 

Do not crease floor mat!

 Fold floor mat back far enough to provide 

access to cap (84) between body and fuel 
pump.

7

Remove end cover (84) of body

 

Installation: Replace cap and insert with 

new sealing compound.

 

Cap (84) is sealed in with body sealer. 

Heat with hot air blower to make it easier to 
remove.

8

Seal fuel return line (90/11)

 Pliers

*163589003700

9

Connect extraction hose (90/14) with adapter 
hose to connection for fuel return line (90/11)

 

Extraction hose

*168589009000

 

Adapter hose

*163589009100

10

Connect ground cable (90/10) of extraction 
pump ground terminal vehicle battery

Pumping out

11

Pump fuel out into safety container using 
extraction pump

 

*BF47.10-P-1001-01A

 

*WH58.30-Z-1001-16A

12

Install in the reverse order

 

Fuel tank

Number

Designation

Models 
163.113/
136/154/
172 up to 
31.08.01

Models 
163.113/
136/154/
172 as of 
01.09.01 
Models 
163.157/
175

Model 
163.128

Model 
163.174

BF47.10-P-1001-01A

Fuel tank capacity Total capacity

Liter

72

83

83

93

Reserve capacity

Liter

10

12

12

12

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163 589 00 91 00

Extraction hose

Adapter hose

Pliers

163 589 00 37 00

168 589 00 90 00

Commercially available tools (see Workshop Equipment Manual)

Number

Designation

Make (e.g.) 

Order number

WH58.30-Z-1001-16A

Suction master M2P 20 B

Ecco GmbH
Vonkeln 17
D-42349 Wuppertal

9749 5000 50

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