MERCEDES-BENZ ML350 1997 Complete Repair Manual

9
Check headlamp adjustment and if necessary

correct.

e

Check and correct headlamp adjustment
MODEL 124, 129, 140, 163, 202

MODEL 170, 208, 210 except CODE (491)

USA version

AP82.10-P-8260A

10
Read fault memory, erase
Stored faults which can result from cables

being disconnected or from simulation during

removal and installation or test work, have to

be processed and erased in the fault

memories after completing the work. Refer to:

#

STAR DIAGNOSIS

Copyright DaimlerChrysler AG 12.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 2

AR09.41-P-6817MM
Removing and installing charge air cooler
10.11.99

ENGINE
612.963 in MODEL 163.113

P09.41-2024-09

1
Headlamp units

2
Cover strips

3
Front end crossmember

4
Socket at temperature sensor
9

Bolts

11
Socket

110/2
Charge air cooler

B17
Intake air temperature sensor

5

Right hose clamp

6
Left hose clamp

7
Charge air hose to charge air cooler

8
Charge air hose from charge air cooler

Operation no. of operation texts or standard texts and flat rates
Sector

Op. no.
Operation text

P
096810
REMOVING AND INSTALLING CHARGE AIR COOLER

P
096820
REPLACING CHARGE AIR COOLER

P
096827
REPLACING CHARGE AIR COOLER (COOLER REMOVED)

Removing, installing

Danger!

Risk of injury
from fingers becoming


jammed or bruised
when removing and

installing and aligning hood, trunk lid, doors,

lids and sliding roof
When moving components ensure that no

body parts or limbs are in the area of motion.

AS00.00-Z-0011-01A

1
Open engine hood and position upright


Have an assistant secure hood

AR88.40-P-1000GI

2
Remove headlamp units (1)

AR82.10-P-4730GH

3
Remove front end crossmember (3)

Place over engine with release cable

attached.

AR62.30-P-2300GH

4
Unplug socket (4) at intake air temperature

sensor (B17)


Do not release or lock temperature sensor

(B17) in place with socket plugged in

otherwise the locking arms will be over-

tensioned. Refer to:

#

Removing and installing intake air

temperature sensor.

AR07.52-P-1465A

5
Detach hose clamps (5, 6) of the charge air

hoses (7, 8) at the charge air cooler (110/2)

6
Unscrew bolts (9) at charge air cooler

7
Remove charge air cooler (110/2)

Detach from charge air hoses.
Traces of oil, slight quantities of oil in the

charge air hose come from the crankcase

ventilation and are permissible.

8
Install in the reverse order

Copyright DaimlerChrysler AG 12.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 1

9
Check headlamp adjustment and if necessary

correct.

e

Check and correct headlamp adjustment
MODEL 124, 129, 140, 163, 202

MODEL 170, 208, 210 except CODE (491)

USA version

AP82.10-P-8260A

10
Read fault memory, erase
Stored faults which can result from cables

being disconnected or from simulation during

removal and installation or test work, have to

be processed and erased in the fault

memories after completing the work. Refer to:

#

STAR DIAGNOSIS

Copyright DaimlerChrysler AG 12.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 2

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

2001-04 STARTING & CHARGING SYSTEMS
Generators & Regulators - 163 Chassis
IDENTIFICATION
CHASSIS & ENGINE IDENTIFICATION
DESCRIPTION
Bosch generators are available in various amp ratings depending on engine application. Voltage regulators are
transistorized and internal to generator. See GENERATOR APPLICATION
table.
GENERATOR APPLICATION
ADJUSTMENTS
DRIVE BELT ROUTING
For drive belt routing, see Fig. 1 . WARNING:Vehicles are equipped with air bag supplemental restraint system. Before
attempting any repairs involving steering column, instrument panel or
related components, see SERVICE PRECAUTIONS (or AIR BAG SAFETY
PRECAUTIONS) and DISABLING & ACTIVATING AIR BAG SYSTEM in
appropriate AIR BAG RESTRAINT SYSTEMS article.
NOTE: When the battery is disconnected, vehicle computer and memory system may
lose data. Driveability problems may exist until computer systems have
completed a relearn cycle.
Model (Year)ChassisEngine
ML55 AMG (2001-03)163.174113.981
ML320 (2001-02)163.154112.942
ML350 (2003-04)163.157112.970
ML430 (2001)163.172113.942
ML500 (2002-04)163.175113.965
ApplicationAmp Rating
V6115
V8150
NOTE: Vehicles have automatic belt tensioners. No adjustment is necessary.

2001 Mercedes-Benz ML320
2001-04 STARTING & CHARGING SYSTEMS Generators & Regulators - 163 Chassis

2001 Mercedes-Benz ML320
2001-04 STARTING & CHARGING SYSTEMS Generators & Regulators - 163 Chassis
me
Saturday, October 02, 2010 3:20:31 PMPage 1 © 2006 Mitchell Repair Information Company, LLC.
me
Saturday, October 02, 2010 3:20:35 PMPage 1 © 2006 Mitchell Repair Information Company, LLC.

2001 Mercedes-Benz ML320
2001-04 STARTING & CHARGING SYSTEMS Generators & Regulators - 163 Chassis
me
Saturday, October 02, 2010 3:20:31 PMPage 2 © 2006 Mitchell Repair Information Company, LLC.

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.

Fig. 2: Removing Dust Filter Housing
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

2001 Mercedes-Benz ML320
2001-04 STARTING & CHARGING SYSTEMS Generators & Regulators - 163 Chassis
me
Saturday, October 02, 2010 3:20:31 PMPage 4 © 2006 Mitchell Repair Information Company, LLC.

Fig. 3: Connecting Quiescent Current Retention Unit
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

2001 Mercedes-Benz ML320
2001-04 STARTING & CHARGING SYSTEMS Generators & Regulators - 163 Chassis
me
Saturday, October 02, 2010 3:20:32 PMPage 5 © 2006 Mitchell Repair Information Company, LLC.

Fig. 4: Removing Emergency Call System Battery
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

2001 Mercedes-Benz ML320
2001-04 STARTING & CHARGING SYSTEMS Generators & Regulators - 163 Chassis
me
Saturday, October 02, 2010 3:20:32 PMPage 6 © 2006 Mitchell Repair Information Company, LLC.