diagram MERCEDES-BENZ ML320 1997 Complete Manual PDF

Fig. 239: Identifying Antenna Diplexer, Antenna Line And GPS Antenna Lead
RETROFIT FIBER OPTIC CABLE WIRING HARNESS - AN82.70-P-0002-01GH
Connection diagram of fiber optic cable
1. Prepare fiber optic cable wiring harness (30) as shown in figure.
The vehicle is preinstalled with a fiber optic cable for the CD player with changer. This fiber optic
cable is tied back in the radio slot and is not required in this case.
Fig. 240: Identifying Connection Diagram Of Fiber Optic Cable

2. Connect fiber optic cable wiring harness (30) to the CTEL interface (A34/4).
3. After installing CTEL interface (A34/4) in the center console, route fiber optic cable wiring harness (30)
into the radio slot.
4. Connect wiring harness when installing radio (A2) or COMAND (A40/3).

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
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Fig. 245: Identifying Fiber Optic Cable Connector (X39/43) (B) And Fiber Optic Cable Wiring
Harness
CONNECT WIRING HARNESS - AZ82.20-P-0001-02B
Model 163.113/128/136/154/172/174/175
Do not touch parts which conduct high voltages. Persons who wear electronic implants (e.g. heart
pacemakers) must not carry out any work on such components.
Connection diagram of wiring harness of illuminated door sill molding
Fig. 246: Connection Diagram Of Wiring Harness Of Illuminated Door Sill Molding

1. Raise fuse block in fuse and relay module (F1).
2. Push to the side the foam rubber block for cable openin
g into interior.

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
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GF54.30-P-3007A
Charge indicator lamp, exterior lamp failure
24.10.96

MODEL
129, 140 as of 1.6.96,

163, 168, 170,

202 as of 1.8.96,

208 up to 31.7.99,

210 as of 1.6.96 up to 30.6.99

P54.30-0517-06

Terminal 61 is used for the generator

indicator lamp. When the ignition is

On
the excitation voltage is applied to it and

the generator voltage when the engine is

running.

However, a terminal is required for some

systems (e.g. exterior lamp indicator) which

D
is exactly at ground potential (low level),

when the engine is not running with the

ignition
On

D
is exactly at least 10.5 V (high level),

when the voltage at terminal 61

exceeds a particular voltage or the

engine speed exceeds a particular

threshold (480 rpm).

Terminal 61e is used for this (engine running

recognition/speed threshold value).

Terminal 61e is produced in instrument

cluster (A1) in accordance with the sketched

circuit diagram:
An electronic system is ...via terminal 15

Terminal 61 and the speed signal are used as input signals which

reach the instrument cluster via the CAN data bus.

If a particular speed or a particular voltage threshold at terminal 61 is

exceeded, the transistor switches off and terminal 61e goes to high

level (terminal 61 and the speed signal are interlinked to terminal 61e

via an OR function. Also refer to table.)

The maximum current at terminal 61e is approx. 2 mA at high level

and approx. 350 mA at low level. The switching delay is

0.5 seconds in each case.

Exterior lamp indicator lamp and charge indicator lamp

The input signal of terminal 61 and the speed signal are used for

engine running recognition. Depending on these input signals the

exterior lamp failure indicator lamp (A1e14) or the generator charge

indicator lamp (A1e5) is actuated (refer to table).

The instrument cluster also passes on the status of terminal 61e as a

CAN message. The information is consequently available to all bus

participants.

On models 163 and 168 terminal 61e is only made available as a

CAN message. There is no discrete terminal 61e line.
Voltage

term. 61

Engine speed

Term 61e
Warning/indicator
lamp

U
threshold
< 200 rpm
< 10.5 V
Bulb check

U
threshold
> 480 rpm
U
10.5 V
Charge indicator

lamp

U
threshold
< 200 rpm
U
10.5 V

-
U
threshol
> 480 rpm
U
10.5 V

-
-
Fault value
U
10.5 V

-

Copyright DaimlerChrysler AG 04.06.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 1

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
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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.

AP40.10-P-4051Z
Check tires for damage and cracks

MODEL
123, 124, 126, 129, 140, 163, 168, 170, 171, 201, 202, 203, 208, 209, 210, 211, 215, 220, 230, 240, 414

P40.10-0002-01
P40.10-0001-01

Left diagram

Wear at shoulder of front tires

Right picture

Wear in middle of rear tires


Check

Danger!

Risk of death
cased by vehicle slipping or

toppling off of the lifting platform.
Align vehicle between the columns of the

hydraulic hoist and position the four support

plates below the hoist support points specified

by the vehicle manufacturer.

AS00.00-Z-0010-01A

1
Check tires on all wheels

Check tread as well as outer and inner
sidewalls on all tires for signs of damage such

as cuts, punctures, cracks, breakouts,

separation and ingressed foreign matter. If

damage is present

#

Install new tires:

f

Model 124, 129, 140, 163, 168, 170, 171,
202, 203, 208, 209, 210, 211, 215, 220

except maximum protection code Z07, 230,

240 except CSR system, 414

AR40.10-P-1030A

f

Model 220 with maximum protection, code Z07

AR40.10-P-1030MB

f

Model 240 with CSR system

AR40.10-P-1030CSR

Model 123, 126, 201

2
Check tire wear pattern on all wheels

Greater wear at the shoulder compared to

the center of the tire is normal for the front

wheel tires. Wear on the rear tires is uniformly

distributed across the total tread, whereby

wear on vehicles with rear-wheel drive in the
middle of the tread is somewhat greater than

at the shoulders. In event of unusual tire

pattern:

#

Determine cause for increased tire wear and

rectify, then:

#

Install new tires:

f

Model 124, 129, 140, 163, 168, 170, 171,
202, 203, 208, 209, 210, 211, 215, 220

except maximum protection code Z07, 230,

240 except CSR system, 414

AR40.10-P-1030A

f

Model 220 with maximum protection, code Z07

AR40.10-P-1030MB

f

Model 240 with CSR system

AR40.10-P-1030CSR

Model 123, 126, 201

3
Measure the depth of tread of the tires on al

the wheels and note the measurement in the

table on the maintenance sheet.

Measure depth of tread at point of

greatest wear. Perform measurement at

outside, inside and center of tread.

Minimum depth of tread 1.6 mm.

For safety reasons, tires should be

replaced before the minimum depth of tread is

reached:

D
Summer tires for approx. 2 to 3 mm depth

of tread

D
Winter tires at approx. 4 mm depth of tread


Information on measuring tire tread depth

AH40.10-P-0006-01T
Brake pad gauge

*211589062300

4.1
Change round wheels on front and rear axles
If necessary, and only on vehicles without

mixed tires

Retain running direction of wheels, as
otherwise handling performances and comfort

may be impaired and tire wear increased.

Model 124, 129, 140, 168, 170, 202, 203,

208, 209, 210, 211, 215, 220, 230, 240, 414

AP40.10-P-4050Z

Model 163

AP40.10-P-4050GH

Copyright DaimlerChrysler AG 06.07.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 1

ME-SFI IGNITION SYSTEM FUNCTION DIAGRAM - GF15.12-P-0001-01A
Fig. 9: Identifying ME-SFI Ignition System Components - Engine 112
ME-SFI IGNITION SYSTEM FUNCTION DIAGRAM - GF15.12-P-0001-01B
Ignition coils, location GF15.10-P-3102-01A
Ignition coils, taskSupplying adequate
ignition energy in all
operating conditions for
the particular ignition
circuit.
Ignition coils, designOne double ignition coil
for each cylinder. Attached
to cylinder head cover.
Ignition coils, function GF15.10-P-3102-02A

2001 Mercedes-Benz ML320
1998-2005 ENGINE Electrical System - Engine - 163 Chassis
me
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Two spark plugs for each cylinder are beneficial because of the arrangement of the valves for achieving optimal
emission levels and smooth engine running.
Each spark plug is actuated separately by the ME-SFI control unit through its own ignition coil. On engine 112,
113 both ignition coils of a cylinder are combined to form a dual ignition coil.
In the lower part load range up to approx. 2000 rpm both ignition sparks of a cylinder are triggered
simultaneously. At moderate and high engine loads, the ignition sparks are triggered offset by as much as 10°
crank angle. In this case, the sequence of actuation is constantly varied in order to achieve a uniform wear of
both spark plugs and to avoid deposits on only one side of the combustion chamber.

For troubleshooting in the dual ignition system, it is possible to switch off one ignition circuit each with HHT or
STAR DIAGNOSIS.
ME-SFI ignition system function
diagramEngine 104GF15.12-P-0001-01D
Engine 111GF15.12-P-0001-01G
Engine 112GF15.12-P-0001-01A
Engine 113GF15.12-P-0001-01B
Engine 119GF15.12-P-0001-01E
Engine 120GF15.12-P-0001-01F
ME-SFI control unit
position/task/design/ function GF07.61-P-5000F
ECI ignition system functionEngine 137GF15.15-P-3000L
Ignition coils,
location/task/design/functionEngine 119, 120GF15.10-P-3102F
Engine 104, 111GF15.10-P-3102G
Engine 112, 113GF15.10-P-3102A
Crankshaft position sensor,
location/task/ design/function GF07.04-P-4116F
Camshaft Hall sensor,
location/task/design/ function GF07.04-P-4117F
Spark plugs,
location/task/design/function GF15.10-P-3101F
Intake air temperature sensor,
location/task/ design/function GF07.04-P-2100F
Hot film mass air flow sensor,
location/task/ design/functionEngine 119, 120 (round
connector)GF07.07-P-4118E
Engine 104, 111, 112,
113, 137GF07.07-P-4118G
Coolant temperature sensor,
location/task/ design/functionEngine 104, 111GF07.04-P-5026G
Engine 112, 113, 137GF07.04-P-5026A
Engine 119, 120GF07.04-P-5026F
Electronic accelerator, Engine 104, 111, 112, GF30.20-P-3010E

2001 Mercedes-Benz ML320
1998-2005 ENGINE Electrical System - Engine - 163 Chassis
me
Saturday, October 02, 2010 3:18:54 PMPage 19 © 2006 Mitchell Repair Information Company, LLC.

Fig. 30: Identifying Connection Diagram - Checking For Alternator Regulation Voltage
Checking
Risk of explosion caused
by oxyhydrogen gas. Risk
of poisoning and caustic
burns caused by
swallowing battery acid.
Risk of injury caused by
burns to skin and eyes
from battery acid or when
handling damaged lead-
acid batteriesNo fire, sparks, open flames
or smoking. Wear acid-
resistant gloves, clothing and
safety glasses. Only pour
battery acid into suitable and
appropriately marked
containers.
AS54.10-Z-0001-01A
Notes on battery AH54.10-P-0001-01A
1Check condition of
battery (G1) AR54.10-P-1129Z
2Check whether
preconditions for
alternator testing have
been fulfilled AR15.40-P-5009GH
3Attach volt ampere tester
(079) according to
connection plan Volt ampere tester with
load resistance*WH58.30-Z-1002-09A
Volt ampere tester ETT
011.00*WH58.30-Z-1003-09A
Risk of accident caused Secure vehicle to prevent it AS00.00-Z-0005-01A

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

connection diagram011.00
Risk of accident caused
by vehicle starting off by
itself when engine is
running. Risk of injury
caused by contusions and
burns during starting
procedure or when
working near the running
engineSecure vehicle to prevent it
from moving by itself.
Wear closed and snug-
fitting work clothes.
Do not grasp hot or rotating
parts.AS00.00-Z-0005-01A
3Start engine
4Load battery (G1) with
volt ampere tester (079)
and check charging
current of alternator (G2)
with increased engine
speed Vary load resistance
long enough until the
maximum load current is
achieved; when this is
done, the regulating voltage
must not drop below 12.7
V.
Engines 111, 612*BE15.40-P-1001-01A
Engines 112, 113*BE15.40-P-1001-01K
Engine 628*BE15.40-P-1001-01J
Volt ampere tester with
load resistance*WH58.30-Z-1002-09A
Volt ampere tester ETT
011.00*WH58.30-Z-1003-09A
Charging current below
desired value: ?
Check diodes for
alternator (G2).
AR15.40-P-9301-02EA
Engine tester with
oscilloscope
If diodes are faulty: ?
Replace alternator
(G2)
*WH58.30-Z-1046-13A
Engines 111, 112, 113AR15.40-P-5032GH
Engine 612AR15.40-P-5032GI
Engine 628 with water-
cooled alternator (G2)AR15.40-P-5032IA
Engine 628 with air-cooled
alternator (G2)AR15.40-P-5032GD
5Turn off engine
6Disconnect volt ampere
tester (079) with current Volt ampere tester with
load resistance*WH58.30-Z-1002-09A

2001 Mercedes-Benz ML320
1998-2005 ENGINE Electrical System - Engine - 163 Chassis
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