fuel pressure sensor MERCEDES-BENZ ML320 1997 Complete Repair Manual

and skin caused
by contact with
fuel
1
Remove key
from electronic
ignition switchOnly on vehicles with electronic ignition switch.
Vehicles with Keyless Go code 889: Switch off engine, remove Keyless
Go-Cards out of vehicle and store outside of the sender range.

2
Remove cover
on front side of
engine
Model 129, 211, 215, 220, 230 only
3.1
Remove engine
cover with
integrated air
filterExcept model 171.473, 203.076 /276, , 209.376 /476 from 24.4.04
The air filter is integrated in the engine cover. Remove engine cover or air
filter by pulling it vertically up and off the cylinder head covers.

3.2Remove air
filter housingModel 171.473
Model 203.076/ 276
Model 209.376/ 476 as of 24.4.04AR09.10-
P-1150AC
4
Remove hot
film mass air
flow sensor
with air intake
pipe
Engine 112.910/ 920/ 921/940/ 941/ 942/ 970
Engine 113.940AR07.07-
P-1454A
Engine 112.922 /944 /972 /973 /975
Engine 113.941/ 948/ 960/ 961/ 963/ 966AR07.07-
P-1454AA
Engine 112.912 /913 /916 /917 /946 /947 /949 /954 /953 /955
Engine 113.968 /967 /969 /987 /988 /989AR07.07-
P-1454SV
Engine 112.923 /943
Engine 113.943 /944 /980 /984AR07.07-
P-1454AG
Engine 113.942 /965/981
AR07.07-
P-
1454MV
5
Disconnect
lead line (17/2)
at the fuel
distributor
Release fuel pressure via service valve and collect fuel.

*BA07.52
P-1001-
01A
Fig. 12
6
Removing fuel
rail with
injection valvesEngine 112.910 /920 /921 /923 /940 /941 /942 /943 /970
Engine 113.940 /942 /943 /944 /961 /965 /980 /981 /984AR07.03-
P-1451A

Engine
112.912/913 /916 /917 /922 /944 /946 /947 /949 /953 /954 /955 /972 /973 /975
Engine 113.941 /948 /960 /963 /966 /967 /968 /969 /987 /988 /989AR07.03-
P-1451AA
Unscrew

2001 Mercedes-Benz ML320
1998-2005 ENGINE Air Intake, Turbo Charging - 163 Chassis
me
Saturday, October 02, 2010 3:16:57 PMPage 11 © 2006 Mitchell Repair Information Company, LLC.

8
Attach guard plate for radiator/condenser

y

Guard plate for radiator/condenser
Engine 606 in model 124,
Engine 606.961 in model 140,

Engine 112, 113, 604, 605, 611.960 in model

202,

Engine 602.983, 612.966 in model 461,

Engine 628.962, 612.965, 606.964, 112.945,

113.962/ 982 in model 463,

Engine 111, 112, 611.962, 612.962 in model

203,

Engine 112, 113, 611.961, 612.961, 613.961

in model 210,

Engine 112 in model 170,
Engine 112 in model 220,

Engine 113 in model 211, 215, 220,

Engine 112 in model 208,

Engine 112, 113, 612.963, 628.963 in model

163,

Engine 112.923 /943, 113.961 in model 129,

Engine 137, 275 in model 215, 220,

Engine 613.960, 628.960 in model 220,

Engine 113.992 in model 230.474,

Engine 271 in model 209, 203,

Engine 285.950 in model 240.078 /178,

Engine 612.967 in model 209.316,

Engine 648 in model 220

Engine 112.951 in model 639.601/603/ 605/

701 /703 /705 /801 /803 /805

Engine 646.983 /984 in model 639.601/

603 /605 /701 /703 /705 /801 /803 /805

Engine 646.982 in model 639.601/ 603/ 605/
701 /703 /705

WF58.50-P-0110-01A

9
Remove air cleaner housing (5)

10
Remove air intake pipe (6) with resonance
tube (7)

Separate connector of hot film mass air

flow sensor (HFM) for this step and unbolt air

intake pipe at cylinder head cover

The air intake pipe is attached at the rear

at the intake manifold with a plastic plate.

Do not damage the plastic strap.

Engine 112.942/ 970

AR07.07-P-1454A

Engine 113.942/ 965/ 981

AR07.07-P-1454MV


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 contact with fuel.
No fire, sparks, open flames or smoking.

Pour fuels only into suitable and appropriately

marked containers.

Wear protective clothing when handling fuel.
AS47.00-Z-0001-01A

11
Disconnect fuel line at fuel rail

Release fuel pressure at service valve!

Collect fuel!

Engine 112:
#

*BA07.52-P-1001-01A

Engine 113:
#

*BA07.52-P-1001-01A

Pressure hose

*119589046300

12
Remove right and left ignition coils (12)

AR15.12-P-2003A

13
Remove right and left cylinder head covers (13)

AR01.20-P-5014B

14
Remove the intake manifold (14)


Installation:

On vehicles with engine

damage, the intake manifold must be

examined for swarfs before assembling and

any swarfs present must be removed, in order

to avoid consequential damage.

AR09.20-P-1310A

The intake manifold system must not be

disassembled.

Remove intake manifold with fuel distributor

15.1
Remove camshaft position sensor (15)

Only necessary if the right cylinder head is

removed.

AR15.10-P-2000A

Copyright DaimlerChrysler AG 20.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 3

8
Attach guard plate for radiator/condenser

y

Guard plate for radiator/condenser
Engine 606 in model 124,
Engine 606.961 in model 140,

Engine 112, 113, 604, 605, 611.960 in model

202,

Engine 602.983, 612.966 in model 461,

Engine 628.962, 612.965, 606.964, 112.945,

113.962/ 982 in model 463,

Engine 111, 112, 611.962, 612.962 in model

203,

Engine 112, 113, 611.961, 612.961, 613.961

in model 210,

Engine 112 in model 170,
Engine 112 in model 220,

Engine 113 in model 211, 215, 220,

Engine 112 in model 208,

Engine 112, 113, 612.963, 628.963 in model

163,

Engine 112.923 /943, 113.961 in model 129,

Engine 137, 275 in model 215, 220,

Engine 613.960, 628.960 in model 220,

Engine 113.992 in model 230.474,

Engine 271 in model 209, 203,

Engine 285.950 in model 240.078 /178,

Engine 612.967 in model 209.316,

Engine 648 in model 220

Engine 112.951 in model 639.601/603/ 605/

701 /703 /705 /801 /803 /805

Engine 646.983 /984 in model 639.601/

603 /605 /701 /703 /705 /801 /803 /805

Engine 646.982 in model 639.601/ 603/ 605/
701 /703 /705

WF58.50-P-0110-01A

9
Remove air cleaner housing (5)

10
Remove air intake pipe (6) with resonance
tube (7)

Separate connector of hot film mass air

flow sensor (HFM) for this step and unbolt air

intake pipe at cylinder head cover

The air intake pipe is attached at the rear

at the intake manifold with a plastic plate.

Do not damage the plastic strap.

Engine 112.942/ 970

AR07.07-P-1454A

Engine 113.942/ 965/ 981

AR07.07-P-1454MV


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 contact with fuel.
No fire, sparks, open flames or smoking.

Pour fuels only into suitable and appropriately

marked containers.

Wear protective clothing when handling fuel.
AS47.00-Z-0001-01A

11
Disconnect fuel line at fuel rail

Release fuel pressure at service valve!

Collect fuel!

Engine 112:
#

*BA07.52-P-1001-01A

Engine 113:
#

*BA07.52-P-1001-01A

Pressure hose

*119589046300

12
Remove right and left ignition coils (12)

AR15.12-P-2003A

13
Remove right and left cylinder head covers (13)

AR01.20-P-5014B

14
Remove the intake manifold (14)


Installation:

On vehicles with engine

damage, the intake manifold must be

examined for swarfs before assembling and

any swarfs present must be removed, in order

to avoid consequential damage.

AR09.20-P-1310A

The intake manifold system must not be

disassembled.

Remove intake manifold with fuel distributor

15.1
Remove camshaft position sensor (15)

Only necessary if the right cylinder head is

removed.

AR15.10-P-2000A

Copyright DaimlerChrysler AG 20.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 3

SENDING UNITS & SENSORS
SENDING UNITS & SENSORS LOCATION
Fuel PumpIn top of fuel tank.
Headlamp Range Adjustment Motor (Right/Left)Behind respective headlamp.
Headlamp Washer PumpIn left front of engine compartment, on side of
washer fluid reservoir.
In-Car Temperature Sensor Aspirator BlowerBehind center of dash.
Lamella Sun Roof Motor (Left/Right)At rear of roof.
Module Box Blower MotorIn left side of engine compartment, in E-box.
Rear Wall Door Washer PumpIn left side of engine compartment, on side of
washer fluid reservoir.
Tailgate Window Wiper MotorIn liftgate, behind trim.
Transfer Case Range Selection MotorOn left rear of transfer case.
Windshield Washer PumpIn left front of engine compartment, on washer fluid
reservoir.
Wiper MotorAt left rear of engine compartment, under plenum
cover.
ComponentComponent Location
ABS Lateral Acceleration SensorBelow center console, behind shift assembly.
Camshaft Hall Effect SensorOn right front of engine.
Crankshaft Position (CKP) SensorOn left rear of engine.
ECT SensorOn front center of engine.
ESP Brake Pressure Sensor No. 1In left rear of engine compartment.
ESP Brake Pressure Sensor No. 2In left rear of engine compartment.
Freeze Protection Temperature SensorBehind right side of dash, in evaporator.
Front Axle SensorBehind right front wheel.
Fuel Level SensorOn top of fuel tank.
Fuel Tank Emissions Monitoring Pressure SensorIn left rear side of cargo area, behind trim on fuel
filler pipe.
Hot Film MAF SensorIn right side of engine compartment.
In-Car Temperature SensorBehind center of dash.
Knock Sensor No. 1 (KS 1)On right side of engine, below intake manifold.
Knock Sensor No. 2 (KS 2)On left side of engine, below intake manifold.
Left Front Brake Pad Wear SensorBehind left front wheel.
Left Front VSSBehind left front wheel.
Left Rear Brake Pad Wear SensorBehind left rear wheel.
Left Rear VSSBehind left rear wheel.
Membrane Travel SensorIntegral to brake booster.
Oil SensorOn lower right front of engine.
Outside Temperature Indicator Temperature SensorBehind left side of front grille.

2001 Mercedes-Benz ML320
2001 MERCEDES-BENZ ML320 & ML430
me
Saturday, October 02, 2010 3:21:17 PMPage 4 © 2006 Mitchell Repair Information Company, LLC.

NOTES ON AVOIDING DAMAGE TO IGNITION SYSTEM - AH15.10-P-0002-01D
Engine 104, 111, 112, 113, 119, 120, 156, 271
To avoid damage to control unit connect and disconnect the two connectors on control unit only when
ignition is switched off.
Terminal 1 of ignition coils must not be short-circuited to GND, e.g. as anti-theft protection.
Install only original ignition system components.
Do not operate ignition system at starting speed unless all of the ignition cables are connected.
No tests such as holding ignition cable 4 at a distance to GND, unplugging a spark plug connector or
pulling cable 4 out of the ignition coils, may be performed at starting speed or when the engine is
running.
Every high voltage circuit must be loaded with at least 2 kohms (spark plug connector).
If it is necessary to test the ignition spark when providing roadside assistance, this must only be done with
a spark plug at a cylinder ignition cable. Ensure that the spark plug has good contact to ground.
Before working at cranking speed, e.g. checking compression pressure, switch off ignition and disconnect
connector "2" from control unit.
Engine 120 has two fuel injection and ignition systems.
Use of testers
Only connect and disconnect secondary measuring sensor to corresponding ignition cables when vertical
engine and ignition are switched off.
If the shot-circuit protection is operated (cylinder comparison) and the engine stays upright, it is not
possible to conduct the test with this test instrument.
Do not connect test lamp to ignition coil terminals 1 and 15.
NOTES ON IGNITION COIL CHARACTERISTICS OF IGNITION SYSTEMS - AH15.10-P-1001-01A
Engine 104, 111, 112, 113, 119, 120

In the case of the twin-spark ignition coil with kV pickup in ignition systems ME-SFI 2.1 and HFM-SFI, no
measurement facilit
y exists at the ignition coil using the kV pickup although a kV pickup is fitted. It is only
damage to ignition system
Notes on avoiding
damage to ignition systemENGINE 104, 111, 112, 113,
119, 120, 156, 271, 112 mit
Benzin-Einspritz- und
Zundsystem MEAH15.10-P-0002-01D
Notes for ceramic glow
plugsENGINE 646.8, 642AH15.20-P-0001-01A

2001 Mercedes-Benz ML320
1998-2005 ENGINE Electrical System - Engine - 163 Chassis
me
Saturday, October 02, 2010 3:18:54 PMPage 2 © 2006 Mitchell Repair Information Company, LLC.

AF07.00-P-9000B
Engine runs rough, surges or does not turn over
29.4.02

ENGINE
611 in MODEL 203, 202, 210

ENGINE
612 in MODEL 163, 203, 210, 209

ENGINE
613 in MODEL 210, 220

ENGINE
628 in MODEL 163, 220, 211

ENGINE
646 in MODEL 203, 211

ENGINE
647 in MODEL 211

ENGINE
648 in MODEL 220, 211

ENGINE
668 in MODEL 168

ENGINE
612, 628 in MODEL 463

Modification notes

23.3.01

Supersedes STIP 07.16-014 dated 11.12.00

Damage code
Cause
Remedy

07 206 D5
High-pressure pump

To verify whether high pressure pump is

damaged.

#

High pressure pump of common rail

injection system is damaged mechanically.

1
Remove/install/replace high pressure

pump.

When the high pressure pump of the common

rail injection system is damaged metal chips

and/or damage to the pump drive (timing

drive) can occur due to contamination of the

injection system components.
2
Turn high pressure pump by hand with

driver.

If mechanical resistance can be felt,

perform the following tests. Clarify additional

work with ESKULAB by specifying repair work:

#
3
Check driver of high pressure pump or

mount in sprocket for damage (visual

check).

If high pressure pump is locked:
#
4
Check timing

5
Check timing drive for damage.

In each case:
#
6
Remove/install/replace timing chain.

If timing deviates by a crankshaft angle of

more than 20 degrees (corresponding to one

tooth skipped):

#
7
Check pressure loss.

8
Open low pressure connection on high

pressure pump return (plastic line in

area of pressure regulator valve) and

check connection point in rail for chips.

If chips are present when checking

injection system:

#
9
Thoroughly clean all fuel low pressure

lines as well as feed and return lines.

Flush and blow out with compressed air.

10
Remove fuel preheater and fuel filter

with filter housing, replace.

Fuel preheater is only installed in models

202, 203 and 163.

11
Remove/install/replace fuel cooler at

vehicle and engine end.

Not installed in model 210 up to 6/99 and

model 168.

12
Remove fuel tank, replace.

On engine 628:
#

13
Remove/install/replace electric supply

pump.

14
Remove/install/replace injectors, rail

(including pressure regulation valve and

rail pressure sensor), high pressure

lines and injector leak oil rail.*

Copyright DaimlerChrysler AG 28.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 1

Engine 112 in model 208,
Engine 112, 113, 612.963, 628.963 in model
163,
Engines 112.923/943, 113.961 in model 129,
Engines 137, 275 in models 215, 220,
Engines 613.960, 628.960 in model 220,
Engine 113.992 in model 230.474,
Engine 271 in MODELS 209, 203,
Engine 285.950 in models 240.078 /178,
Engine 612.967 in model 209.316,
Engine 648 in model 220 Engine 112.951 in
model
639.601/603 /605 /701 /703 /705 /801 /803 /805
Engine 646.983 /984 in model
639. /605 /701 /703/705/801 /803/805
Engine 646.982 in model
639.601 /603 /605 /701 /703 /705
9Remove air filter
housing (5).
10Remove air intake
pipe (6) with
resonance body (7) For this step separate connector of hot film
mass air flow sensor (HFM) and unscrew air
intake pipe at cylinder head cover.
The air intake pipe is attached to the rear of
the intake manifold with a plastic strap.
Do not damage the plastic strap.
Engines 112.942/970AR07.07-P-
1454A
Engines 113.942/965/981AR07.07-P-
1454MV
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
contact with fuel.No fire, sparks, open flames or smoking.
Pour fuels only into suitable and appropriately
marked containers.
Wear protective clothing when handling fuel.AS47.00-Z-0001-
01A
11Disconnect fuel line
at fuel rail Release fuel pressure at service valve.
Collect fuel!
Engine 112: ?
*BA07.52-P-
1001-01A
Engine 113: ?

2001 Mercedes-Benz ML320
1998-2005 ENGINE Complete engine - 163 Chassis
me
Saturday, October 02, 2010 3:17:57 PMPage 86 © 2006 Mitchell Repair Information Company, LLC.

*BA07.52-P-
1001-01A
Pressure hoseFig. 52
12Remove right and
left ignition coils
(12) AR15.12-P-
2003A
13Remove right and
left cylinder head
covers (13) AR01.20-P-
5014B
14Remove intake
manifold (14) Installation: On vehicles with engine
damage, the intake manifold must be examined
for swarfs before assembling and any swarfs
present must be removed, in order to avoid
consequential damage.
The intake manifold system must not be
disassembled.
Remove intake manifold together with fuel
distributor.AR09.20-P-
1310A
15.1Remove camshaft
angle position sensor
(15) Only necessary if right cylinder head is
removed.AR15.10-P-
2000A
16Remove poly-V-belt
(8) Installation: Lock tensioning device with a
drift or pin (diameter 5 mm).
Models 163.154/157/172.AR13.22-P-
1202B
Models 163.174/175.AR13.22-P-
1202BA
17Detach coolant line
(16) at left cylinder
head 6 mm socket hexagon*WH58.30-Z-
1001-06A
7 mm socket hexagon*WH58.30-Z-
1002-06A
18.1Remove inner fender
(9) Only for engine 113.942 /965 /981.AR88.10-P-
1300GH
19.1Remove shield (10) Only for engine 113.942 /965 /981.
20.1Remove exhaust
bracket (11) Only for engine 113.942 /965 /981.
Support exhaust system.
21Detach exhaust
system at exhaust
manifold Installation: On vehicles with engine
damage check exhaust sy stem for chips before
assembly and remove any chips present to
prevent later damage
*BA14.10-P-
1002-01B
22Position crankshaft
to 40° after ignition The engine must not be turned back;
otherwise the timing chain can get jammed. AR05.10-P-
6858V

2001 Mercedes-Benz ML320
1998-2005 ENGINE Complete engine - 163 Chassis
me
Saturday, October 02, 2010 3:17:57 PMPage 87 © 2006 Mitchell Repair Information Company, LLC.

AR47.10-P-4100GH
Remove fuel tank
10.3.97

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
163.175 with ENGINE 113.965

P47.10-0407-06

1
Left side paneling cover

2
Filler cap

3
Bayonet lock

4
Filler cap attachment

5
Rubber seal

B4/3 Fuel tank pressure sensor

X36/4
Fuel tank filler neck/ground screw

connection

P47.10-0413-09

77
Activated charcoal canister

77/1
Fine venting connection

77/2
Regeneration connection

77/3
Spring chamber venting connection
80/19

Mounting screw

90/11
Fuel return line

90/12
Fuel feed line

B4/3 Fuel tank pressure sensor

77/4

Frischluftanschluss

80
Fuel tank

80/2
Tensioning straps

80/18
Longitudinal strut for tensioning

straps

Modification notes
7.11.00

Figure modified from 170 Nm auf 200 Nm
Value in BA35.10-P-1001-01C changed for

model 163

*BA35.10-P-1001-01C

Copyright DaimlerChrysler AG 28.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 1

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

1
Drain fuel tank

Via fuel pump. NOT for model 163.113/128.

AR47.10-P-4001GH

If fuel pump faulty, and model 163.113/128.

AR47.10-P-4000GH


*BF47.10-P-1001-01A

2
Unscrew filler cap (2) and detach from filler

cap attachment (4)

3.1
Remove left seat of 3rd seat row

If installed. See owner's manual

4
Unclip cover of left-hand side panel (1)

5.1
Detach fuel lines of expansion reservoir and

separate from filler neck

As of VIN A289565. NOT for model

163.113/128.

6
Detach fuel filler neck from guide funnel


Installation:
Check O-ring and replace if

necessary. Ensure that the bayonet-lock
remains above
the pressure sensor.

Ensure it is correctly located when installed.

Open bayonet lock (3) to do this.

7
Pull filler neck through toward interior

Screw on cap again in order to avoid fuel

flowing out.

8.1
Remove fuel tank pressure sensor (B4/3)

Only USA version

AR47.10-P-8022GH
9.1
Detach bolted connection of fuel tank filler

neck/ground (X36/4) from filler neck

NOT for model 163.113/128.

10.1
Cut cable strap for retaining clips of fuel lines
at filler neck and remove retaining clips

As of VIN A289565. NOT for model

163.113/128.


Danger!
Risk of fatal accident
from vehicle slipping

or toppling off the lift platform
Align vehicle between the columns of lifting
platform and position the four support plates


below the support strongpoints specified by

the vehicle manufacturer.

AS00.00-Z-0010-01A

11
Place the vehicle on lifting platform

AR00.60-P-1000GH

12
Separate rubber seal (5) from underside of

vehicle and remove filler neck from interior

Do not damage fuel lines at filler neck.

13
Remove left rear wheel

e

Removing and installing wheels, rotating if

necessary

AP40.10-P-4050GH

14
Remove spare wheel and spare wheel carrier

complete

NOT in the case of spare wheel

holder/spare wheel, code 849.

15
Cut a large safety cable strap for filler neck at

bracket on longitudinal frame member

16
Remove bracket from longitudinal frame

member

17
Disconnect connection for regeneration (77/2)

and fresh air connection (77/4) on activated

charcoal canister (77)


Installation
: Connect up lines as per

connection diagram:

#

Engine 111

AR47.30-P-8212-01GJ

Engines 112, 113

AR47.30-P-8212-01GI

Engines 112, 113 version
I

AR47.30-P-8212-01GH

Charcoal canister and fuel tank form a

single unit.

NOT for model 163.113/128.

18
Detach vent hose

At rear differential to rear of activated

charcoal reservoir.

19
Remove rear exhaust system heat shield.

Do not damage boot at rear axle shaft.

20
Disconnect rear propeller shaft at differential


Installation:
Install new self-locking bolts.


Tie up propeller shaft e.g. using welding

wire

Heat bolts with hot air fan to facilitate

removing. Mark propeller shaft and differential

gear flange for correct installed position.


*BA41.10-P-1002-01C

Copyright DaimlerChrysler AG 28.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 2