1997 MERCEDES-BENZ ML500 tow

332 IndexPartition net* 159
Engaging 159
Removing 161
Tightening 160
Parts see Spare parts service
Passenger compartment 211
Interior lighting 112
Passenger footwell
Fuse box in 288
Passenger safety see Occupant
safety 58
Pedals 193
Plastic and rubber parts
Cleaning 239
Poly-V-belt drive 314
Layout 293
Positions (Memory function*)
Recalling from memory 106
Storing into memory 106
Power assistance 193Power seat*
Adjusting backrest tilt 38
Adjusting head restraint height 38
Adjusting seat cushion tilt 38
Adjusting seat height 38
Seat fore and aft adjustment 37
Power seats* 37
Power train 314
Power washer 235
Power windows
Blocking of rear door window
operation 73
Side windows 144
Synchronizing 146
Practical hints
First aid kit 257
Fuses 287
Lamps in instrument cluster 242
Spare wheel 259
Towing the vehicle 283
Vehicle jack 258
Vehicle tool kit 257Premium unleaded gasoline 303
Problems
While driving 51
With vehicle 18
Product information 9
Programming or reprogramming the inte-
grated remote control 182
R
Radio transmitters, control and
operation 211
Rain sensor* 130, 131
Rapid seat heating
Switching off 99
Rapid seat heating*
Switching on 98
Reading lamp 29

333 Index
Reading lamps 114
Rear automatic climate control 141
Adjusting air volume and air distribu-
tion manually 141
Automatic mode 141
Rear bench seat
Foldable 99
Rear door window
Blocking operation 73
Rear fog lamp 267
Bulb 267
Switching on 111
Rear lamp bulbs
Replacing 270
Rear parking lamp
Replacing bulbs 270
Rear passenger compartment ventilation
and climate control
Activating 141
Deactivating 141
Rear passenger compartment ventilation
and rear automatic climate
control 141Rear quarter windows* 146
Opening 146
Closing 147
Rear seats 99
Easy entry/exit feature* 101
Enlarging cargo area 99
Folding down backrest 100
Folding up 101
Folding up backrest 100
Fore and aft 99
Lowering 100
Third row* 102
Rear standing lamp
Replacing bulbs 270
Rear towing eyes 285
Rear view mirror automatic antiglare 126
Rear view mirrors see Mirrors
Rear window defroster 133
Activating 133
Deactivating 133Rear window wiper 131
Rain sensor* 131
Rear window wiper/washer 51
Reconnecting
Vehicle battery 279
Refrigerant
Air conditioning 302
Refueling 214
Regular checks 215
Reinstalling vehicle battery 279
Remote control
Changing battery 262
Global locking 89
Global unlocking 89
Synchronizing 263
Unlocking liftgate 89
Unlocking the driver’s door, fuel filler
flap 89
Unlocking with 32
Remote control with folding key 88

338 IndexTele Aid* 171
Emergency calls 173
Information 177
Initiating an emergency call
manually 175
Remote door unlock 179
Roadside assistance 175
Stolen vehicle tracking services 180
System self-check 172
Upgrade signals 178
Telematics* 315
Telephone* 170
Temperature
Grades of tires 309
Tires 228
Third row seats* 102
Folding down single seat 102
Installing single seat 104
Removing single seat 104
Storing single seat 103
Tie-down rings (Cargo
compartment) 158Tightening torque 315
Tightening torque (Wheel bolts) 277
Tilt
Head restraint 37, 39
Time
Setting hours 118
Setting minutes 118
Tire inflation pressure
Checking 216, 227
Tire speed rating 198, 315
Tire traction 197
Tires 295, 308
Direction of rotation 227
Driving instructions 196
Retreads 226
Rims and tires 295
Rotating 228
Service life 227
Temperature 228
Temperature grades 309
Tread depth 230
Wear pattern 228
Winter 230Tools 257
Vehicle jack 258
Vehicles with CD-changer* 258
Wheel bolt wrench 258
Tow-away alarm 29, 84
Arming 84
Disarming 84
Disarming for transport 84
Towing
Trailer 206
Towing a trailer 209
Automatic transmission 124
Towing eyes
Front 285
Rear 285
Towing the vehicle 283
Stranded vehicle 286
Tracking services
For stolen vehicle 180

339 Index
Traction 308, 315
Trailer
Attaching 208
Loading 208
Towing 209
Trailer hitches 207
Trailer towing 206
Attaching a trailer 208
Checking weights 208
Electrical connections 207
Hitches 207
Loading 208
Weights and ratings 207
Trailer weights and ratings 207
Transfer case 315
Transmission control – LOW RANGE
mode 125
Switching off 125
Switching on 125
Transmission selector lever 264
Unlocking manually 264
Tread depth (tires) 230
Treadwear 308Trip computer* 29, 186
Average fuel consumption 189
Compass 187
Country 190
Distance remaining 189
Language 190
Selecting functions 186
Setting date 186
Stop watch 189
Switching on 186
Trip odometer
Resetting 118
Trip odometer display 117
Trunk see Cargo compartment 89
Turn signal lamps
Replacing bulbs 266, 267, 269
Turn signals 49
Additional in mirrors 266
Cleaning lenses 236
Front bulbs 266
Indicator lamps 25
Rear bulbs 267, 270
Turning off
Engine 54U
Unlocking 32, 88
Centrally from inside 94
Driver’s door in an emergency 261
Driver’s door, fuel filler flap 89
Fuel filler flap 214
In an emergency 261
Transmission selector lever
manually 264
Vehicle in an emergency 179
With the remote control 32
Upgrade signals
Tele Aid* 178
Uphill driving
Cruise control 151
Upholstery
Cleaning 239
Upshifting 120

340 IndexUseful features 164
Ashtrays and cigarette lighter 168
Cup holder 166
Electrical outlet 170
Garage door opener 180
Interior storage spaces 164
Programming or reprogramming the in-
tegrated remote control 182
Tele Aid* 171
Telephone* 170
Trip computer* 186
V
Vehicle
Locking 28
Locking in an emergency 262
Lowering 276
Proper use of 17
Service battery 278
Towing 283
Unlocking 28
Unlocking in an emergency 261
Vehicle and trailer weights and
ratings 207
Vehicle battery 278Vehicle care
Cup holder 238
Engine cleaning 236
Gear selector lever 238
Hard plastic trim items 238
Headlamps 236
Instrument cluster 238
Leather upholstery 239
Light alloy wheels 238
MB Tex upholstery 239
Ornamental moldings 236
Paintwork 235
Parktronic* system sensor 237
Plastic and rubber parts 239
Power washer 235
Seat belts 238
Steering wheel 238
Tail lamps 236
Tar stains 235
Turn signals 236
Upholstery 239
Vehicle washing 236
Window cleaning 237
Wiper blades 237Vehicle identification number (VIN) 292
Vehicle jack 258
Vehicle lighting
Checking 216
Vehicle tool kit 257
Vehicle with CD-changer* 258
Vehicle washing 236
VIN (Vehicle Identification Number) 292,
315
Voice control system* 315
W
Warning indicators
Parktronic* 155
Warning sounds
Drivers seat belts 64
Parking brake 48
Warranty coverage 291
Washer fluid see Windshield washer fluid
Washing the vehicle 234

Fig. 2: Torque Converter Housing Tightening Torques
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Dismantling & Assembling Oil Pump
1 - Remove pump gears (22 a nd 23) from pump housing. See Fig. 3.
2 - Check radial seal ring ( 24), replace if necessary.
3 - Replace O-ring (25).
4 - Lubricate pump gears and place in the pump housing. Insert pump gear (22) so that the charger
(arrow) points towards the pump housing.
CAUTION: Use ATF oil.

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMI SSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:25 PMPage 4 © 2006 Mitchell Repair Information Company, LLC.

Location/Task/Design/Function Of Freewheel

See LOCATION/TASK/DESIGN/FUNCTION OF FREEWHEEL
.
Function Of Gear Shift (With Touch Shift)
Transmission with touch shift.
On transmission 722.6 the electrohydraulic control unit converts the electric signals going out from the
electronic transmission control (EGS) into hydraulic signals.
Faults occurring in the ETC control unit (N15/3) are handled by the limp-home system. The limp-home system
is designed so that the driver can reach a Service Operation even under extreme conditions.
Selector lever position "P", "R", "N" and "D" are transmitted by the electronic selector lever module control unit
(N15/5) on the Controller Area Network bus class C (engine compartment) (CAN-C) and in parallel to this by
means of a shift rod to the range selector lever at the transmission end. By touching or holding the selector lever
towards "+" or "-" the shift range is pre-selected and displayed in the instrument cluster (A1) until an upshift of
transmission 722.6 is possible.
Function Of Gear Change

See FUNCTION OF GEAR CHANGE
.
Emergency Default Mode, Function

See LIMP
-HOME MODE, FUNCTION.
Function Of Manual Drive Mode Selection

Oil Level Control, Function

See OIL LEVEL CONTROL, FUNCTION
.
Torque Converter Lockup Clutch Control, Function

See FUNCTION OF TORQUE CONVERTER LOCKUP CLUTCH CONTROL
.
Function Of Gear Shift (Without Touch Shift)
On transmission 722.6 the electrohydraulic control unit converts the electric signals going out from the
electronic transmission control (EGS) into hydraulic signals.
Faults occurring in the ETC control unit (N15/3) are handled by the limp-home system. The limp-home system
is designed so that the driver can reach a Service Operation even under extreme conditions.
Selector lever position "P", "R", "N" and "D" are transmitted by the electronic selector lever module control unit

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:28 PMPage 224 © 2006 Mitchell Repair Information Company, LLC.

(N15/5) on the Controller Area Network bus class C (engine compartment) (CAN-C) and in parallel to this by
means of a shift rod to the range selector lever at the transmission end. By touching or holding the selector lever
towards "+" or "-" the shift range is pre-selected and displayed in the instrument cluster (A1) until an upshift of
transmission 722.6 is possible.
Function Of Gear Change

See FUNCTION OF GEAR CHANGE
.
Emergency Default Mode, Function

See LIMP
-HOME MODE, FUNCTION.
Oil Level Control, Function

See OIL LEVEL CONTROL, FUNCTION
.
Torque Converter Lockup Clutch Control, Function

See FUNCTION OF TORQUE CONVERTER LOCKUP CLUTCH CONTROL
.
Function Of Gear Change
Operation
Every gear change is triggered by the electronic transmission control (ECT). Each shift sequence is assigned a
control block. Each of these contains one overlap regulating valve, one holding pressure shift valve, one shift
pressure shift valve, one common command valve and one electromagnetically actuated switchover valve
(upshift/downshift solenoid valve).
Actuation of the solenoid valve switches over from stationary mode to the shift phase.
When the gear change is complete the solenoid valves are no longer actuated as the different gears are subject to
a self-hold function in stationary mode.
Shifting "N" To "D" (1st Gear), Function

See SHIFTING N TO D (1ST GEAR), FUNCTION
.
Shifting N To D (1st Gear), Function
Transmission 722.6 As Of 1.7.96

2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:28 PMPage 225 © 2006 Mitchell Repair Information Company, LLC.