Page 3521 of 4133

If garage door opener button 1 (A67s1), garage door opener button 2 (A67s2) or garage door opener button 3
(A67s3) is actuated, the signal learned for this memory location is transmitted activating the associated garage
door drive.
The garage door opener (signal has a range of at least 15 m.
Erasing
Circuit 15 R or circuit 15 ON.
Simultaneously press garage door opener button 1 (A67s1) and garage door opener button 3 (A67s3) and
hold down for approx. 20 s. The garage door opener indicator lamp (A67e4) starts to flash.
After the LED starts to flash, release garage door opener button 1 (A67s1) and garage door opener button
3 (A67s3) within 10 s while garage door opener indicator lamp (A67e4) is flashing. The existing data of
the memory locations is erased.
The memory can be deleted by actuating garage door opener button 1 (A67s1) and garage door opener button 3
(A67s3) for longer than 20 s. The LED flashes rapidly for approx. 10 s indicating that all memory locations
have been successfully deleted.
CONTENTS, FUNCTION DESCRIPTION OF GARAGE DOOR OPENER - GF68.05-P-0999A
MODEL 129, 163, 170, 202 as of 1.6.98, 203, 208, 210 as of 1.6.98, 215, 220, 230 with CODE (231a)
Garage door opener
GARAGE DOOR OPENER TRANSMITTER, LOCATION/PURPOSE - GF68.05-P-1100A
MODEL 129 as of 1.6.98,163 as of 1.9.01,170, 202 as of 1.6.98,203,208, 210 as of 1.6.98,215, 220, 230 with
CODE (231a) Garage door opener
Notes and list of compatible garage door drives for garage door opener AH68.05-P-0001-01A
Garage door opener transmitter, location/ purpose GF68.05-P-1100A
Garage door opener, function GF68.05-P-0001A
Survey of system components, garage door opener,
location/purpose/design/function GF68.05-P-
9999RZ
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Interior Equipment - 163 Chassis
me
Saturday, October 02, 2010 3:35:21 PMPage 3 © 2006 Mitchell Repair Information Company, LLC.
Page 3522 of 4133

Fig. 2: Identifying Garage Door Opener Transmitter Keys
Illustrated on model 230
GARAGE DOOR OPENER TRANSMITTER, LOCATION - GF68.05-P-1100-01C
The transmitter keys (1) as well as the transmitter for opening the garage door are located in the mounting shaft
between the interior lamps.
Fig. 3: Identifying Garage Door Opener Transmitter Buttons
- Illustrated On Model 230
SURVEY, SYSTEM COMPONENTS, GARAGE DOOR OPENER, LOCATION/ PURPOSE/DESIGN/FUNCTION - GF68.05-P-
9999RZ
MODEL 129, 163, 170, 202 as of 1.6.98,203,208, 210 as of 1.6.98,215, 220, 230 with CODE (231a) Garage
door opener
Garage door opener
transmitter, locationModels 129, 202, 203, 208, 210, 220, 230GF68.05-P-1100-
01A
Model 170GF68.05-P-1100-
01B
Model 163GF68.05-P-
1100-01C
Garage door opener
transmitter, purposeUp to 3 different garage door drives can be activated
with the garage door opener.
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Interior Equipment - 163 Chassis
me
Saturday, October 02, 2010 3:35:21 PMPage 4 © 2006 Mitchell Repair Information Company, LLC.
Page 3523 of 4133

AUTOMATIC DIMMING INSIDE REARVIEW MIRROR, FUNCTION - GF68.49-P-0003GH
MODEL 163 as of 1.9.99 with CODE (249b) Automatic dimming inside rearview and outside rearview
mirror (driver)
Function requirements
No overvoltage or undervoltage
Term. 15R or 15 ON
Reverse gear not engaged
Interior lighting not switched on
Function
The glass of the inside rearview mirror (A67) can be electro-chromatically dimmed. The mirror glass between
the reflector and the glass cover contains a layer of electrolyte gel. The light transmission ratio of this gel
changes when a voltage is applied to it.
The light hitting the surface of the mirror is more or less reflected due to the variable of the actuation voltage.
The actuation voltage is controlled by the electronic circuitry in the inside rearview mirror. This is
accomplished depending on the ambient light and the light hitting the mirror.
The two input parameters are detected by the mirror dimming to rear sensor (A67h2) in the mirror housing
(rear) and by the mirror dimming forward sensor (A67h1) in the mirror glass of the inside rearview mirror
(A67).
The inside rearview mirror unit (A67) also acts as the master for the outside mirror dimming function
(driver's side).
CONTENTS - FUNCTION DESCRIPTION, AUTOMATIC DIMMING INSIDE REARVIEW MIRROR - GF68.49-P-0999GH
MODEL 163 as of 1.9.99 with CODE (249a) Automatic dimming inside rearview mirror
TROUBLE DIAGNOSIS
FRONT ASHTRAY DOES NOT OPEN SOFTLY OR IS STUCK - AF68.20-P-6000A
Garage door opener transmitter, location/ purpose GF68.05-P-1100A
Contents, function description of garage door opener GF68.05-P-0999A
Automatically dimming driver-side outside mirror, function GF88.79-P-2003GH
Function description, automatic dimming inside rearview mirror GF68.49-P-0003GH
Automatic dimming outside rearview mirror on driver's side, function GF88.79-P-2003GH
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Interior Equipment - 163 Chassis
me
Saturday, October 02, 2010 3:35:21 PMPage 5 © 2006 Mitchell Repair Information Company, LLC.
Page 3524 of 4133
MODEL 163.113 /128 /154 /157 /174 /175 #A as of 289560 up to 480543,163.113 /128 #X as of 754620 up to
777100
Operation no. of operation texts or standard texts and flat rates
Fig. 4: Identifying Ashtray Housing And Damper
Parts ordering notes
CategoryOp. no.Operation textTimeAcc. no.Code
P024513Replace Damper for front ashtray010 WU--
Damage
codeCauseRemedy
81 031 H2
Foreign matter stuck in
ashtray housing.
Damper is missing or is
damaged.
1 Remove front ashtray housing (1).AR68.20-P-
2400GI
2 Remove foreign matter.
3 Check operation (open and close ashtray)
If ashtray does not open softly or opens
jerkily. ?
4 Remove/install/replace damper on
ashtray (2).
5 Install ashtray housing (1).AR68.20-P-
2400GI
6 Perform a function test
Part no.DesignationQuantity
163 680 03 26Damper1
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Interior Equipment - 163 Chassis
me
Saturday, October 02, 2010 3:35:21 PMPage 6 © 2006 Mitchell Repair Information Company, LLC.
Page 3525 of 4133

ASHTRAY HOUSING CANNOT BE OPENED - AF68.20-P-6003A
MODEL 163.113 /154 /174 #A as of 289565, 163.128 /157 /175
Operation no. of the operation texts or standard texts and flat rates
Fig. 5: Identifying Front Ashtray Cover & Cigarette Lighter
RangeOp. no.Operation textFlat rateAcc. no.Code
P023919Correct installation position of cigarette lighter001 WU/0.1 h82 331 **---
Damage
codeCauseRemedy
Cigarette lighter not fully
seated, causing ashtray housing
to jam when closed.
It is NOT necessary to replace the complete ashtray
housing.
1 Using a long wedge, slide under edge of ashtray cover
and pry up and out to remove. Support cover to prevent
breaking tabs from abrupt release.
Start from lower left corner (arrow).
Fig.
6
2 Push inward on head of cigarette lighter until lighter
snaps into proper position.
3 Reinstall front ashtray cover.
4 Verify proper operation.
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Interior Equipment - 163 Chassis
me
Saturday, October 02, 2010 3:35:21 PMPage 7 © 2006 Mitchell Repair Information Company, LLC.
Page 3526 of 4133

Fig. 6: Identifying Long Wedge (115 589 03 59 00)
ILLUMINATED MIRROR, OCCASIONAL MALFUNCTION - AF68.60-P-2001A
MODEL 163.154 /172 #A as of 145273,163.154 /172 #X as of 708319,163.113 /128 /157 /174 /175
SELF-DIAGNOSTIC SYSTEM
GARAGE DOOR OPENER DIAGNOSIS, CONTENTS - AD68.05-P-1000AZ
MODEL 129, 163, 170, 202, 208, 210 as of 1.6.98,215, 220 with CODE (231a) Garage door opener
GARAGE DOOR OPENER, DIAGNOSIS TOOLS - AD68.05-P-2000-01A
Damage
codeCauseRemedy
81 002As soon as the sun visor is removed from the
holder, the illuminated mirror looses contact.
To use the illuminated mirror the sun
visor must remain arrested in the holder
The illuminated mirror does not function
as long as the sun visor is outside the
holder.
This malfunction is frequently incorrectly
diagnosed as a defective lead or sun visor
contact fault. The sun visor and illuminated mirror
function properly and should NOT be
replaced.
22.1 [] 11Garage door opener diagnosis, previous knowledge AD68.05-P-2000A
22.1 [] 12Garage door opener diagnosis, function check AD68.05-P-3000A
22.1 [] 13Garage door opener diagnosis, troubleshooting AD68.05-P-5000A
22.1 [] 21Garage door opener, testing electrical system AD68.05-P-6000A
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Interior Equipment - 163 Chassis
me
Saturday, October 02, 2010 3:35:21 PMPage 8 © 2006 Mitchell Repair Information Company, LLC.
Page 3527 of 4133

Fig. 7: Identifying Electrical Connection Set (201 589 00 99 00)
COMPATIBILITY CHECK FOR GARAGE DOOR OPENER - AD68.05-P-2000-02A
Program compatibility tester
1. Connect compatibility tester to cigar lighter.
2. Switch on circuit 15R or circuit 15.
3. Press one of the transmit buttons for longer than 20 s.
The compatibility changes over to the learning mode indicated by the LED flashing.
4. Hold the hand transmitter for the appropriate system against the interior rearview mirror and operate.
When the learning procedure is completed the LED flashes rapidly.
It is possible to program three different transmitter frequencies. A transmitter frequency is assigned to
each transmit button.
Open or close garage door
5. Press corresponding button. The signal learned for this memory location is transmitted.
The signal from the compatibility tester has a range of at least 85% of the range of the garage door
remote control, however at least 15 m.
If the garage door can be opened or closed, the garage door opener is compatible with the garage door.
Delete compatibility tester
6. Press the two outer transmit buttons for longer than 20 s. After approx. 10 s, the LED flashes rapidly to
indicate that all memory locations have been erased.
Before returning the compatibility tester, ensure that the programming is deleted!
GARAGE DOOR OPENER DIAGNOSIS, PREVIOUS KNOWLEDGE - AD68.05-P-2000A
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Interior Equipment - 163 Chassis
me
Saturday, October 02, 2010 3:35:21 PMPage 9 © 2006 Mitchell Repair Information Company, LLC.
Page 3528 of 4133

MODEL 129, 163, 170, 202, 208, 210 as of 1.6.98,215, 220 with CODE (231a) Garage door opener
GARAGE DOOR OPENER DIAGNOSIS, FUNCTION CHECK - AD68.05-P-3000A
MODEL 129, 163, 170, 202, 208, 210 as of 1.6.98,215, 220 with CODE (231a) Garage door opener
GARAGE DOOR OPENER DIAGNOSIS, TROUBLE-SHOOTING - AD68.05-P-5000A
MODELS 129, 163, 170, 202, 208, 210 as of 1.6.98,215, 220 with CODE (231a) Garage door opener
Garage door opener locationModels 129, 202, 208, 210, 215, 220GF68.05-P-1100-01A
Model 170GF68.05-P-1100-01B
Model 163GF68.05-P-1100-01C
Electrical wiring diagramsModel 163PE68.00-P-1100D
Model 170PE68.00-P-1100C
Models 202, 208PE68.00-P-1100B
Model 210PE68.00-P-1100A
Model 220PE68.00-P-1100SA
Model 129, volume 2, FG 68
Connection and use of test equipment AD00.00-P-1000AZ
Diagnostic tools, garage door opener AD68.05-P-2000-01A
Compatibility test for garage door opener AD68.05-P-2000-02A
Garage door opener diagnosis, previous knowledge AD68.05-P-
2000A
Key to diagnostic symbols AD00.00-P-
2001A
Fuses in order
Battery voltage 11-14V
Ignition: ON
Function check
Scope of test Operation / requirement Specified value Possible
cause / remedy
1
Transmitting
push-button
The desired transmitting push-button is programmed.
The vehicle is inside the garage door range.
The garage door opener signal has a range of at least
85% of the range of the garage door hand transmitter or
15m.
Press programmed transmitting push-button.
Garage door is
activated.AD68.05-P-
5000A
Garage door opener
diagnosis, previous
knowledge
AD68.05-P-2000A
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Interior Equipment - 163 Chassis
me
Saturday, October 02, 2010 3:35:21 PMPage 10 © 2006 Mitchell Repair Information Company, LLC.