1997 MERCEDES-BENZ ML430 wiring

Fig. 1: Drive Belt Routing
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
TROUBLE SHOOTING
PRELIMINARY INSPECTION
Verify customer complaint by operating system. Visually inspect for obvious signs of mechanical and electrical
damage. Check generator belt tension and condition. Ensure that battery voltage is within specifications. Inspect
for blown fuses and damaged relays.
Verify ground connection integrity between engine, body, battery and generator. Check for damaged wiring
harnesses and/or switches. Check for a broken or partially broken wire inside insulation, which could cause
system malfunction but prove good in a continuity/voltage check with system disconnected. Ensure any
aftermarket electronic equipment is properly installed. If fault is found, repair as necessary. If no fault is found,
check for conditions that might cause an intermittent situation.
SERVICE PRECAUTIONS
BATTERY DISCONNECT/CONNECT
Disconnect Procedures
1. On vehicles not equipped with TELE AID, go to step 5 . Vehicles equipped with TELE AID, switch
TELE AID into service mode by turning ignition ON.
2. Turn ON telephone and enter code "*#4610#" on handset.
3. Confirm that "No Telematics Service" appears on handset with okay.
4. Turn OFF handset.
5. Turn OFF ignition.
6. Open hood and open snap fasteners (1) on dust filter housing. See Fig. 2
.
7. Remove dust filter housing (2) exposing battery.
8. If not using quiescent current retention unit, go to step 14 . If using quiescent current retention unit, go to
next step.
9. Connect quiescent current retention unit by switching on quiescent current retention unit (7) and then first
connecting positive terminal (8) and negative terminal (9) of retention unit to positive cable and battery
ground (W10). See Fig. 3
.
10. On vehicles equipped with TELE AID, remove luggage compartment cargo anchoring lugs and remove
floor paneling.
11. Remove screws (1). See Fig. 4
.
12. Dismantle cover from TELE AID control module (A35/8).
13. Disconnect connection coupling for back up battery and remove back up battery.
14. Disconnect ne
gative battery cable (1) and insulate terminal. See Fig. 5. NOTE: Numbers and letters in text refer to numbers and letters in figures.

2001 Mercedes-Benz ML320
2001-04 STARTING & CHARGING SYSTEMS Generators & Regulators - 163 Chassis
me
Saturday, October 02, 2010 3:20:31 PMPage 3 © 2006 Mitchell Repair Information Company, LLC.

3. Normalize side power windows. See NORMALIZING POWER WINDOWS .
4. Start engine and run at idle. Turn steering wheel from one lock position to the other to activate steering
angle sensor. Center steering wheel. Message "EI. STAB. PROGRAM GO TO GARAGE" should erase
from multifunction display panel.
5. If equipped, normalize tilting/sliding roof. See NORMALIZING TILTING/SLIDING ROOF
.
6. If equipped, normalize memory power seats, steering column and outside mirror if components are
installed. See NORMALIZING MEMORY POWER SEATS, STEERING COLUMN & OUTSIDE
MIRROR .
Normalizing Power Windows
1. Completely close each window with manual switch. Hold switch in closed position for .3 second.
2. Repeat procedure for each power window.
Normalizing Memory Power Seats, Steering Column & Outside Mirror
1. Using manual switch, move seat to each end position and hold for .3 second. Repeat procedure for each
switch except rear stop of backrest.
2. Repeat procedure for end positions of steering wheel and outside mirrors.
Normalizing Tilting/Sliding Roof
Open roof with SR switch until mechanical stop is reached. Continue to press switch for .5 seconds.
Setting Time
1. Use bottom left button on steering wheel to scroll through menus on instrument cluster to "Settings"
menu.
2. Move selection marker with + or - button to "Time" submenu.
3. Press up or down arrows to "Clock, hours" setting. Confirm selection marker is on the hour setting.
4. Press + or - to set hour. Press reset knob in instrument cluster to confirm.
5. Move selection marker with + or - button to "Time" submenu.
6. Press up or down arrows to "Clock, minutes" setting. Confirm selection marker is on the minutes setting.
7. Press + or - to set minute. Press reset knob in instrument cluster to confirm.
TESTING
If generator malfunctions, check for Diagnostic Trouble Codes (DTCs) in Motor Electronics Sequential Fuel
Injection (ME-SFI) system. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. If
cause of generator malfunction is not engine performance related, replace generator.
RETRIEVING & ERASING DIAGNOSTIC TROUBLE CODES
NOTE: Before replacing any component that scan tool suggests are faulty, ensure that
all wiring connections and harness connectors are okay. Ensure that power and

2001 Mercedes-Benz ML320
2001-04 STARTING & CHARGING SYSTEMS Generators & Regulators - 163 Chassis
me
Saturday, October 02, 2010 3:20:32 PMPage 8 © 2006 Mitchell Repair Information Company, LLC.

RETRIEVING DIAGNOSTIC TROUBLE CODES
To retrieve codes using hand held tester, see Fig. 6 .
Fig. 6: Retrieving Codes Using Hand Held Tester

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
CLEARING DIAGNOSTIC TROUBLE CODES
Disconnecting vehicle battery will not erase codes. Follow scan tool equipment manufacturers instructions to
erase fault codes.
FAULT CODE DIAGNOSIS EQUIPMENT CONNECTION
To connect hand held tester scan tool to Mercedes-Benz data link connector, see Fig. 7 . To connect hand held
ground circuits are functioning properl
y. For circuit identification, see
appropriate WIRING DIAGRAM unde r ENGINE PERFORMANCE in SYSTEM
WIRING DIAGRAMS for vehicle being tested.
NOTE: For diagnostic equipment conn ections, see FAULT CODE DIAGNOSIS
EQUIPMENT CONNECTION .

2001 Mercedes-Benz ML320
2001-04 STARTING & CHARGING SYSTEMS Gene rators & Regulators - 163 Chassis
me
Saturday, October 02, 2010 3:20:32 PMPage 9 © 2006 Mitchell Repair Information Company, LLC.

Fig. 8: Connecting Hand Held Tester Scan Tool To OBD-II Data Link Connector
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
ON-VEHICLE TESTING
WIRING CONTINUITY
1. Connect voltmeter between generator B+ terminal and ground. Voltmeter should indicate battery voltage.
If battery voltage is not indicated, check battery and check wiring between generator and battery for
corrosion, loose terminals, etc.
2. Turn ignition on and ensure instrument cluster charge indicator light (battery symbol) comes on. If light
does not come on, check wiring between generator and warning light, including indicator bulb.
GENERATOR OUTPUT
1. Ensure connections at battery and generator are clean and tight. Ensure generator, engine and body are
properly grounded. Ensure generator drive belt is properly adjusted and in good condition.
2. Connect load tester/ammeter as per tester manufacturer's instructions. Connect voltmeter leads to battery
terminals. See Fig. 9
. Start engine and run at 2200 RPM for V6 or 2500 RPM for V8. Adjust load tester
to obtain maximum generator output. DO NOT allow voltage to drop to less than 12.7 volts.
3. Maximum generator output should be within a few amps of generator rated output stamped on generator.
If output is not within a few amps of generator rated output, check generator diodes. See DIODE TEST
.
Replace
generator as necessary.

2001 Mercedes-Benz ML320
2001-04 STARTING & CHARGING SYSTEMS Generators & Regulators - 163 Chassis
me
Saturday, October 02, 2010 3:20:32 PMPage 14 © 2006 Mitchell Repair Information Company, LLC.

TORQUE SPECIFICATIONS
TORQUE SPECIFICATIONS
WIRING DIAGRAMS
See CHARGING SYSTEM in appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
ApplicationFt. Lbs. (N.m)
Generator Mounting Bolts30 (42)
Generator Pulley Nut52 (70)

2001 Mercedes-Benz ML320
2001-04 STARTING & CHARGING SYSTEMS Generators & Regulators - 163 Chassis
me
Saturday, October 02, 2010 3:20:32 PMPage 26 © 2006 Mitchell Repair Information Company, LLC.

Crankshaft Position Sensor DIY


hopefully this will help others with what appears to be a common stalling issue in the ML series.


Location:


--------


It's on the rear of the engine where the engine mates with the tranny on the driver's side. There are 2

types. Be sure to get the correct one


Here it is:


1) Get
CPS
at dealer, its a VIN specific part. $125 from my local stealer.


2) Tools needed: Socket screwdriver, Good lighting (portable) shop lights, size 8 outside torx socket,
maybe a ratche
t and extentions depending on your flexibility, magnetic part retrieval tool (skip this at

your peril), bath towel, and long sleeve shirt, step stool, blue thread locker (optional)


3) Open hood and remove engine cover, it just pulls off and on


4) Set wor
k light(s) toward back of engine, lighting behind drivers cylinder head


5) Set bath towel on front of ML to kneel on of your knees will die, wearing long sleeve shirt or your

wrists will be cut.


6) Climb up on towel and look behind engine from above and
right (see .jpg), finding torx attachment
holding your
CPS
.

7) Remove torx screw and pull out
CPS
, disconnect one way connector (wiring)


8) Replace with new (leaving wire detached for now)


9) This is the hardest step by far, and requires patience and fl exibility. Apply some thread locker and

insert screw and start the threads. Tighten with torx on socket screwdriver. This step took about 1/2

hour and numerous dropped screws and retrievals with mag tool.


10) Attach wiring to
CPS


11) Reinstall engine cov
er


12) Clean up tools, towel and lights and everything


13) Drink beer and toast yourself for saving yourself at least $100 and a day of your time dropping off

and picking up cars at shop


Hope this helps someone in the community.


Dickie


00 ML 32
0

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

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

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
72838393

Reserve capacity
Liter
10121212

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