1997 MERCEDES-BENZ ML500 climate control

Fig. 644: Automatic Transmission Fluid Sheet
3.5 Automatic transmission fluid (ATF), Sheet 236.6 and 236.7 , for MB automatic transmissions
without regulated torque converter lockup clutch in passenger cars and commercial vehicles and buses
(W4B035 only as of major assembly end no. 005733), ZF Ecomat transmissions, Voith-Diwa
transmissions, commercial vehicle and cross-country vehicle power steering systems. If the approved
ATF according to sheet 236.2 are not available, ATF according to sheet 236.6 can be used in
synchronized passenger vehicle manual transmissions, except GL 76/30-5 and GL 275E (the two sports
transmissions always require ATF according to sheet 236.6) as a makeshift measure.
The approved ATF according to Sheet 236.6 and 236.7 correspond to the currently no longer valid GM
specification Dexron II-D. The kinematic fresh oil viscosity at 100°C must be at least 7.0 mm
2 /s, after
shearing (as per CEC- TLPG 7) at least 6.0 mm
2 /s.
3.6 Automatic transmission fluid (ATF), Sheet 236.8 , for ZF Ecomat transmissions, Voith-Diwa
transmissions, MB automatic transmissions in commercial vehicles and buses except W4B035 and MB
automatic transmissions without regulated torque converter lockup clutch in passenger cars (only in arctic
climates).
The approved ATF correspond to the no longer valid GM specification Dexron II-E, Allison C4, Voith
lubricant lists G 607 and G 1363 as well as ZF lubricant specifications TE-ML 14.
Automatic transmission fluid (ATF), sheet 236.81 , for MB automatic transmissions without controlled
torque converter lockup clutch in passenger cars, MB automatic transmissions in commercial vehicles and
buses except W4B 035 as well as ZF Ecomat transmission, Voith-Diwa transmission.
The approved ATF corresponds to the ZF lubricant specifications TE-ML 09, TE-ML 14 and the Voith
lubricant lists G 607 and G 1363.
Automatic transmission fluid (ATF), Sheet 236.9 , for MB automatic transmissions without regulated
torque converter lockup clutch in passenger cars, ZF Ecomat transmissions, Voith-Diwa transmissions,
Allison transmissions.

2004 Mercedes-Benz ML350
1998-2005 GENINFO Overall vehicle - 163 Chassis
me
Saturday, October 02, 2010 3:47:56 PMPage 505 © 2006 Mitchell Repair Information Company, LLC.

211, 220
Manual
steering
L075ZATF •
Power steeringATF •
Manual
transmission
Sheet 236.6
not for
GL76/30-5,
GL275E
up to
transmission
sequence
number 7 340
240
(model 717.4
(Mercedes
transmission ))ATF • o
MB 4 and 5-
gear stage
automatic
transmission
without
controlled
torque
converter
lockup clutch
(WUK)
(models
722.3/4/5)
Sheet 236.8
only for arctic
climateATF• ••o••••
MB 5-gear
stage
automatic
transmission
with
controlled
torque
converter
lockup
clutch (WUK)
for vehicles
with rear-
wheel ATF ••

2004 Mercedes-Benz ML350
1998-2005 GENINFO Overall vehicle - 163 Chassis
me
Saturday, October 02, 2010 3:47:56 PMPage 508 © 2006 Mitchell Repair Information Company, LLC.

Cross-country vehicle, sheets 236.1 to 236.12
SPECIFIED GEAR OILS (COMMERCIAL VEHICLES) -OVERVIEW - BB00.40-P-0231-02A
Transfer case
VG150 E75W-90W •
Model
463.270/27175W-140 •
Major
assemblySAE
gradeSheet No.
236.1236.2236.3236.6236.7236.8236.81236.9236.10236.12
Mechanical
steeringATF •
Power
steeringATF •••
MB manual
transmissionATF • o
MB 4 and
5-gear stage
automatic
transmission
without
controlled
torque
converter
lockup
clutch
(WUK)
(models
722.3/4/5)
Sheet 236.8
only for
arctic
climateATF• ••o••••
MB 5-gear
stage
automatic
transmission
with
controlled
torque
converter
lockup
clutch
(GKUB)
(model
722.6)ATF ••

2004 Mercedes-Benz ML350
1998-2005 GENINFO Overall vehicle - 163 Chassis
me
Saturday, October 02, 2010 3:47:56 PMPage 510 © 2006 Mitchell Repair Information Company, LLC.

Fig. 2: Locating Climate Control Components
Courtesy of MERCEDES-BENZ OF NORTH AMERICA
FRESH/RECIRCULATION SWITCH
Fresh/recirculation switch controls voltage signal to fresh air recirculation door motor. See Fig. 1 and Fig. 2 .
With switch indicator light on, air will recirculate. With switch indicator light off, air will enter from outside of
vehicle.
A/C CONTROL MODULE
The A/C control module (A/C amplifier) is the control unit for the A/C system. See Fig. 2 . The module
receives inputs from various sensors and processes the information to control various outputs for the A/C
system for optimal control.
The A/C control module inputs are as follows:
A/C Switch
In-Vehicle Air Temperature Sensor
Temperature Selector Knob
Blower Motor Knob
Evaporator Temperature Sensor
Air Mix Damper Door Position Sensor
The A/C control module output functions are as follows:
Air Mix Damper Door Motor
All Activity Module
Fresh/Recirculation Door Motor
ALL ACTIVITY MODULE
All Activity Module (AAM) receives inputs to determine if specified conditions have been met to allow
operation of A/C-heater system. If conditions are met, the AAM will send signals to the A/C compressor,
condenser fans relay and the blower motor relay to command or enable operation.
IN-VEHICLE TEMPERATURE SENSOR
The in-vehicle temperature sensor is a negative temperature coefficient resistor. Sensor sends signals to the A/C
control module to maintain in-vehicle temperature. Sensor is located on the center panel of the instrument
cluster.
DUST FILTER
A dust filter provides filtering of air entering or recirculating in the passenger's compartment. The dust filter is
mounted between blower motor and evaporator, below passen
ger's side of instrument panel, to left of blower

2001 Mercedes-Benz ML320
2000-01 MANUAL A/C-HEATER SYSTEMS ML 320, ML 430 & ML 55
me
Saturday, October 02, 2010 3:25:10 PMPage 5 © 2006 Mitchell Repair Information Company, LLC.

motor. See Fig. 2 .
PROGRAMMING
RECODING RADIO
1. Turn ignition on. Ensure CODE is displayed on radio display. Enter code numbers using radio station
buttons. For example, use station button No. 1 for code No. 1 and so on.
2. After first number is entered, CODE disappears and number entered is displayed followed by 4 dashes.
After entering 5-digits, confirm correct security code has been entered. If incorrect code has been entered,
entire code must be reentered.
3. Confirm entry of correct security code using "<" (less than) or ">" (more than) buttons. If an incorrect
code is entered, CODE will be displayed on radio display. If security code is entered incorrectly 3 times,
WAIT will be displayed and radio will be disabled for about 10 minutes.
4. If, after 3 more attempts, correct security code has not been entered, radio will be disabled for 60 minutes.
Radio disable time runs down only when radio is turned off.
VERSION CODING
Version coding is performed using a Mercedes-Benz Hand-Held Tester (HHT) and is on-screen menu guided.
After connecting HHT to DLC, vehicle communication is possible as soon as ignition key is inserted into
ignition switch (position of switch does not matter). Version coding menu, position 1, is reached via main menu
and control module adaptation, position 5. There are 2 possible version codings available: readout of version
code and transfer to new control module or readout of version code and to alter code.
To access A/C system version coding, position 2 must be selected and then position 7 for A/C system. Two
selections can be used: A/C system is installed or A/C system is not installed.
SELF-DIAGNOSTICS
RETRIEVING & ERASING DIAGNOSTIC TROUBLE CODES
Retrieving and erasing of Diagnostic Trouble Codes (DTC) must be performed using Mercedes-Benz Hand-
Held Tester (HHT). See HHT instructions for retrieving A/C-heater system related DTC. After noting codes,
see CLIMATE CONTROL DTC
table. To erase DTC, follow HHT instructions.
When retrieving DTC from A/C push button control module, short and open circuits cannot be differentiated
from each other in every instance. When accessing DTC from any control module memory, all stored DTC are
shown. As a result, some DTC shown will not appl
y to climate control system. CAUTION: Before disconnecting battery, obtain 5-digit radio security code from
vehicle owner. Radio will be disabled until properly recoded.
NOTE: Radio will not operate if power supply to radio is interrupted. Obtain 5-digit
radio security code from vehicle owner before disconnecting battery.

2001 Mercedes-Benz ML320
2000-01 MANUAL A/C-HEATER SYSTEMS ML 320, ML 430 & ML 55
me
Saturday, October 02, 2010 3:25:10 PMPage 6 © 2006 Mitchell Repair Information Company, LLC.

CLIMATE CONTROL DTC
SYSTEM TESTS
CONNECTING TEST EQUIPMENT
Remove radio to gain access to A/C push button control unit harness connector. Turn ignition off. Disconnect
control unit harness connector. Connect socket box Test Cable (163 589 01 63 00) to A/C push button control
unit and wiring harness. See Fig. 3
. Connect test cable to Socket Box (124 589 00 21 00). Connect test
equipment leads to socket box terminals as instructed in circuit tests.
DTCPossible Cause
B1232(1) Refrigerant Pressure Sensor
B1419Electromagnetic Clutch
(1)Check A/C refrigerant pressure sensor. See A/C REFRIGERANT PRESSURE SWITCH under
ELECTRICAL TESTS.
WARNING:To avoid injury from Accidental air bag deployment, read and carefully
follow all SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR
BAG SYSTEM procedures in AIR BAG SYSTEM SAFETY article in
GENERAL SERVICING.

2001 Mercedes-Benz ML320
2000-01 MANUAL A/C-HEATER SYSTEMS ML 320, ML 430 & ML 55
me
Saturday, October 02, 2010 3:25:10 PMPage 7 © 2006 Mitchell Repair Information Company, LLC.

1998-2005 HVAC
Climate Control - 163 Chassis
GENERAL INFORMATION
GENERAL NOTES: PASSENGER CARS: CLIMATE CONTROL - AH83.00-Z-9999AZ
MODEL all
Notes on retrofitting an air conditioning
systemMODEL allAH83.30-P-
0001-02A
Repair work for defective refrigerant
circuitMODEL allAH83.30-P-
1782-01A
Instructions for installing actuator motorsMODEL 199,230.4AH83.10-P-
0001-01R
Notes on EU type approval requirementsMODEL 170,209,211,220...AH83.70-P-
0001-09Q
Notes on repairing stationary heaterMODEL 202 up to 31.5.97 retrofitted
stationary heaterAH83.70-P-
0001-03D
Information on repairs to stationary heaterMODEL 202 as of 1.6.97, 208 Retrofitted
Thermo Top C stationary heaterAH83.70-P-
0001-03E
Notes on repairing TelestartMODEL 163, 168, 170, 202, 208, 210 ...AH83.70-P-
0003-02AA
Notes on installation of stationary heaterMODEL 215 Retrofitted stationary feelingAH83.70-P-
0008-02N
Notes on handling refrigerant R134aMODEL all Air conditioning system with
cold means R134aAH83.30-N-
0003-01A
Notes on stationary ventilation with
TelestartMODEL 210.### 1# with Telestart T70 for
un-networked heaterAH83.70-P-
0009-01B
Information on installing actuator motorsMODEL 211AH83.10-P-
0001-01T
Information on installing actuator motorsMODEL 219.3AH83.10-P-
0001-01TX
Notes on handling refrigerant R134aMODEL 240AH83.30-P-
0003-01H
Notes on handling refrigerant R134aMODEL 199AH83.30-P-
0003-01SLR
Notes on repairing the stationary heaterMODEL 163.###1# up to 31.8.01
Retrofitted Thermo Top C stationary heaterAH83.70-P-
0001-03A
Notes on repairing stationary heaterMODEL 168 Retrofitted Thermo Top C
stationary heaterAH83.70-P-
0001-03B
Information on repairs to stationary heaterMODEL 170.435/445/447 up to 31.1.00
Retrofitted Thermo Top C stationary heaterAH83.70-P-
0001-03C
AH83.70-P-

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:14 PMPage 1 © 2006 Mitchell Repair Information Company, LLC.
me
Saturday, October 02, 2010 3:24:17 PMPage 1 © 2006 Mitchell Repair Information Company, LLC.

Information on repairs to stationary heaterMODEL 170.444/449/4650001-03CA
Information on repairs to stationary heaterMODEL 210...AH83.70-P-
0001-03F
Notes on repairing the stationary heaterMODEL 163.###1# as of 1.9.01
Retrofitted Thermo Top C stationary heaterAH83.70-P-
0001-03I
Distinguishing features stationary heater/
stationary preheater/heater boosterMODEL 202.### 1# Webasto Thermo Top
C heaterAH83.70-P-
0003-01A
Distinguishing characteristics stationary
heater/ stationary preheater/heater boosterMODEL 210.###1# up to 31.5.00 Heater
Webasto Thermo Top CAH83.70-P-
0003-01B
Distinguishing features stationary
heater/stationary preheater/heater boosterMODEL 168.###1# Heater Webasto
Thermo Top CAH83.70-P-
0003-01C
Notes on repairing telestartMODEL 168,170, 202 as of 1.6.97,
208,210 More retrofitted telestart T60AH83.70-P-
0003-02A
Notes on repairing telestartMODEL 202 up to 31.5.97 Telestart T60 in
retrofitted stationary heaterAH83.70-P-
0003-02B
Notes on repairing telestartMODEL 163 Telestart T60 in retrofitted
stationary heaterAH83.70-P-
0003-02C
Notes on repairing TelestartMODEL 215, 220AH83.70-P-
0003-02M
Notes on differentiating characteristics of
TelestartMODEL 163, 168, 170, 202, 210 ...AH83.70-P-
0003-03A
Notes on installation of timerMODEL 163, 168, 170, 202, 208 ...AH83.70-P-
0008-01A
Notes on installing stationary heater
MODEL 163, 168, 170, 202, 203, 208,
209, 210, 211, 220, 414 Retrofitted
stationary heaterAH83.70-P-
0008-02A
Notes on installing stationary heaterMODEL 450.3 /4 (except, 450.418)AH83.70-P-
0008-02SM
Notes for timer and/or Telestart
MODELS 163.###1A as of 145270,
163.### 1X as of 708319 Retrofitted
stationary heaterAH83.70-P-
0008-03A
Notes for stationary ventilation with
TelestartMODEL 163.###, 168.###, 170.###,
202.###, 208.###1# Telestart T70AH83.70-P-
0009-01A
Notes on Telestart with GSM antennaMODEL 168, 170, 202, 208.3, 210
Telestart T70AH83.70-P-
0009-02A
Conduct if air conditioning system is
damaged or leakingMODEL all ...AH83.30-N-
0004-01A

Protect air conditioning circuit and
components from moisture when carrying
out repair work
MODEL allAH83.30-N-
0005-01A
Procedure if air conditioning system is
damaged or leakingMODEL 240AH83.30-P-
0004-01H
Conduct if air conditioning system is
damaged or leakingMODEL 199AH83.30-P-
0004-01SLR

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:14 PMPage 2 © 2006 Mitchell Repair Information Company, LLC.