1997 MERCEDES-BENZ ML430 battery replacement

from front seat. DO NOT allow anyone inside vehicle.
3. Disable air bag system. See DISABLING & ACTIVATING AIR BAG SYSTEM
. Connect Trigger
Device (126-589-00-90-00) and Adapter Cable (126 589 21 63 00) to SRS system connector (X29-9)
located at passenger footwell area. Move away from ve hicle as far as trigger device wiring will allow.
4. To deploy driver air bag and ETR, turn rotary knob on trigger device to position No. 1. Push battery
check push button and ignition push button simultane ously. Trigger light should illuminate indicating
driver air bag and ETR deployed. If trigger light is illuminated and driver air bag and-or ETR did not
deploy, driver air bag module and-or ETR is faulty. See UNDEPLOYED AIR BAG
-ETR .
5. To deploy passenger air bag detonator No. 1, turn ro tary knob on trigger device to position No. 2. Push
battery check push button and igni tion push button simultaneously. Tr igger light should illuminate
indicating passenger air bag detonator No. 1 deployed. If trigger light is illuminated and passenger air bag
detonator No. 1 did not deploy, passe nger air bag module is faulty. See UNDEPLOYED AIR BAG
-
ETR .
6. To deploy passenger air bag detonator No. 2, turn ro tary knob on trigger device to position No. 3. Push
battery check push button and igni tion push button simultaneously. Tr igger light should illuminate
indicating passenger air bag detonator No. 2 deployed. If trigger light is illuminated and passenger air bag
detonator No. 2 did not deploy, passe nger air bag module is faulty. See UNDEPLOYED AIR BAG
-
ETR .
UNDEPLOYED AIR BAG-ETR
After deploying procedures and-or diagnostic testing have confirmed air bag module and-or ETR is
undeployable, contact vehicle manufacture r for proper disposal instructions.
POST-COLLISION INSPECTION
When a vehicle has been involved in a collision, certain components of the passive restraint system must be
inspected or replaced. See AIR BAG/SRS COMPONENT INSPECTION & REPLACEMENT TABLES

article in the GENERAL INFORMATION section.
REMOVAL & INSTALLATION
CLOCKSPRING ASSEMBLY
Removal & Installation
1. Before proceeding, See AIR BAG SAFETY PRECAUTIONS . Disable air bag system. See
DISABLING & ACTIVATI NG AIR BAG SYSTEM
.
2. Remove driver air bag module. See DRIVER
-SIDE AIR BAG MODULE . Remove steering wheel bolt.
Using a puller, remove steering wheel. Disconnect lower clockspring connector. Turn 2 fixing screws
(locating on clockspring) countercl ockwise until clockspring cannot be rotated. Remove clockspring
mountin
g screws as necessary. Disconnect all necessary electrical connectors. Remove clockspring
WARNING:
Accidental air bag deployment is pos sible. Personal injury may result.
Read and follow all WARNINGS and AIR BAG SAFETY PRECAUTIONS

before working on ai r bag system or related components.

2001 Mercedes-Benz ML320
2000-01 ACCESSORIES/SAFETY EQUIPMENT Merc edes-Benz - Air Bag Restraint Systems
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Saturday, October 02, 2010 3:44:45 PMPage 5 © 2006 Mitchell Repair Information Company, LLC.

module.
2. To install air bag module, reverse removal procedur e. Activate air bag system. Perform system operation
check to ensure system is functioning properly. See SYSTEM OPERATION CHECK
.
Removal & Installation (SLK 320)
1. Before proceeding, See AIR BAG SAFETY PRECAUTIONS . Disable air bag system. See
DISABLING & ACTIVATI NG AIR BAG SYSTEM
. Remove ignition key. Remove top section of
instrument panel. Fold vapor barrier toward front to reveal 2 screws. Disconnect passenger-side air bag
module connector. Remove 4 screws and passenger-side air bag module.
2. To install air bag module, reverse removal procedur e. Activate air bag system. Perform system operation
check to ensure system is functioning properly. See SYSTEM OPERATION CHECK
.
DIAGNOSTICS
Before proceeding, see AIR BAG SAFETY PRECAUTIONS
. The SRS control module is capable of
diagnosing air bag system components and ETR components. If a fault is detected by the SRS control module
or system is malfunctioning, SRS warning light will do one or more of the following:
SRS warning light goes out after 2 minutes. System fault is noted, however occupant protection is not
affected. See RETRIEVING FAULT CODES
.
SRS warning light illuminates cont inuously. System is faulty which may result in a non deployment or
false deployment. See RETRIEVING FAULT CODES
.
SRS warning light blinks continuous ly. Control module has been replaced without setting control module
parameters.
RETRIEVING FAULT CODES
1. Check vehicle fuses. Replace any blown fuses as nece ssary. Ensure vehicle battery voltage is 11 volts or
more. Ensure SRS warning light functions. Turn i gnition off. Connect Hand-Held Tester (HHT) (965 589
00 01) to Data Link Connector (DLC).
2. DLC is located in right rear corner of engine comp artment. It may be necessary to use Adapter (965 589
00 40 or 965 589 00 50) to connect HHT to DLC. Afte r HHT displays module number and version, press
return key to start diagnosis. Us ing HHT, follow HHT prompts to re trieve SRS fault codes. For SRS
control modules beginning with number 000, fault c ode 1 is valid. For SRS control modules beginning
with number 001, fault code 2 is valid. See Fig. 6
.
3. HHT will display a 3 digit fault code, and may display additional graphic information. This additional
graphic information will help in diagnosis of fault code. See Fig. 5
. During diagnosis HHT will display 4
different graphic displays info rming technician if a test passes or fail s, or if seat belt buckle is latched or
NOTE: After component replacement, perf
orm a system operation check to ensure
proper system operation. S ee SYSTEM OPERATION CHECK
.
NOTE: Fault codes may only be retrieved us ing Hand-Held Tester (965 589 00 01) and
Adapter (965 589 00 40 or 965 589 00 50).

2001 Mercedes-Benz ML320
2000-01 ACCESSORIES/SAFETY EQUIPMENT Merc edes-Benz - Air Bag Restraint Systems
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4
Contents
Practical hintsFirst aid kit .....................................228
Fuses ................................................228
Electrical outlet ..............................230
Stowing things in the vehicle ......230
Hood ................................................. 231
Checking engine oil level .............233
Automatic transmission fluid level ...................................234
Engine oil consumption ................234
Coolant level ...................................234 Adding coolant ...........................235
Windshield washer/headlamp cleaning system .........................236
Windshield and
headlamp washer fluid
mixing ratio ................................237 Vehicle jack, wheel bolt
wrench and screwdriver ......... 237
Air pump ......................................... 239
Wheels ............................................ 240 Tire replacement ....................... 240
Rotating wheels ......................... 241
Spare wheel .................................... 242
Changing wheels ........................... 245
Tire inflation pressure ................. 250
Battery ............................................. 251
Jump starting ................................. 253
Towing the vehicle ........................ 255 Transmission selector lever,
manually unlocking .................. 259
Stranded vehicle ............................ 259 Exterior lamps ................................260
Headlamp assembly ................... 261
Taillamp assemblies ..................265
Adjusting headlamp aim ...............268
Remote control battery replacement .................270
Synchronizing
remote control ............................ 271
Emergency operation of sliding/pop-up roof ...................272
Emergency operation of Skyview Top ...............................273
Manual release for fuel filler flap ............................. 274
Replacing wiper blades .................275
Roof rack ......................................... 276

227
Contents - Practical hints
Te ch n ica l
data
Instruments
and controls Operation Driving
Instrument
cluster display Practical hints
Car care Index
Practical hintsFirst aid kit .....................................228
Fuses ................................................228
Electrical outlet ..............................230
Stowing things in the vehicle ......230
Hood ................................................. 231
Checking engine oil level .............233
Automatic transmission fluid level ...................................234
Engine oil consumption ................234
Coolant level ...................................234 Adding coolant ...........................235
Windshield washer/headlamp cleaning system .........................236
Windshield and
headlamp washer fluid
mixing ratio ................................237 Vehicle jack, wheel bolt
wrench and screwdriver ......... 237
Air pump ......................................... 239
Wheels ............................................ 240 Tire replacement ....................... 240
Rotating wheels ......................... 241
Spare wheel .................................... 242
Changing wheels ........................... 245
Tire inflation pressure ................. 250
Battery ............................................. 251
Jump starting ................................. 253
Towing the vehicle ........................ 255 Transmission selector lever,
manually unlocking .................. 259
Stranded vehicle ............................ 259 Exterior lamps ................................260
Headlamp assembly ................... 261
Taillamp assemblies ..................265
Adjusting headlamp aim ...............268
Remote control battery replacement .................270
Synchronizing
remote control ............................ 271
Emergency operation of sliding/pop-up roof ...................272
Emergency operation of Skyview Top ...............................273
Manual release for fuel filler flap ............................. 274
Replacing wiper blades .................275
Roof rack ......................................... 276

251
Battery
Te ch n ica l
data
Instruments
and controls Operation Driving
Instrument
cluster display Practical hints
Car care Index
If a tire constantly loses air, it should be inspected for
damage.
The spare tire should be checked periodically for
condition and inflation. Spare tire will age and become
worn over time even if never used, and thus should be
inspected and replaced when necessary. Battery
Important!
Battery replacement information:
The maintenance-free battery is located in the engine
compartment.
The service life of the battery is dependent on its
condition of charge. The battery should always be kept
sufficiently charged, in order to last an optimum length
of time.
Wa r n i n g !
Do not overinflate tires. Overinflating tires can
result in sudden deflation (blowout) because they
are more likely to become punctured or damaged
by road debris, potholes etc.. Follow recommended
inflation pressures.Do not overload the tires by exceeding the specified
vehicle capacity weight (as indicated by the label
on the driver’s door latch post). Overloading the
tires can overheat them, possibly causing a
blowout.
Wa r n i n g !
Failure to follow these instructions can result in
severe injury or death.Never lean over batteries while connecting, you
might get injured.Battery fluid contains sulfuric acid. Do not allow
this fluid to come in contact with eyes, skin or
clothing. In case it does, immediately flush affected
area with water and seek medical help if necessary.A battery will also produce hydrogen gas, which is
flammable and explosive. Keep flames or sparks
away from battery, avoid improper connection of
jumper cables, smoking etc..

270
Remote control
Te ch n ica l
data
Instruments
and controls Operation Driving
Instrument
cluster display Practical hints
Car care Index
Remote control battery replacement
Changing batteries
Unfold master key from holder by pressing key release
button. Pull off battery cover (1).
Change batteries, inserting new ones with (+) side
facing up.
Press battery cover onto housing until locked in place. Notes:
To assure proper operation of the remote control, push
each button. Repeat battery installation, if remote
control does not function correctly.
If the remote control does not function correctly after
repeating battery installation, the system may have to be
resynchronized, see below.

271
Remote control
Te ch n ica l
data
Instruments
and controls Operation Driving
Instrument
cluster display Practical hints
Car care Index
Synchronizing remote control
If the remote control does not function correctly and the
batteries are in order, the system may have to be
resynchronized.
Turn key in steering lock to position 2, then to
position 0 and remove.
Within 10 seconds, push and hold button ‹ while
pushing button Πfive times.
Release the button, and press ‹, Œ orŠ once.
Check all functions. The remote control should once
again be operational.
Note:
If it is not possible to resynchronize the remote control,
have the system checked at your authorized Mercedes-
Benz Light Truck Center. Important!
Batteries contain materials that can harm the
environment if disposed of improperly. Recycling of
batteries is the preferred method of disposal. For
disposal, please follow manufacturer’s recommendation
on battery package.
Replacement Battery:
Lithium, type CR 2025 or equivalent.

308
Index
Te ch n ica l
data
Instruments
and controls Operation Driving
Instrument
cluster display Practical hints Car care
Index
Remote control ................................................................. 24 Battery replacement .................................................270
Changing batteries ...................................................270
Operation ..................................................................... 26
Synchronizing remote control ................................ 271
Removable cargo floor plates ....................................... 129
Replacement keys ............................................................ 25
Replacing bulbs ..............................................................260
Replacing wiper blade insert .......................................275
Reporting safety defects ................................................. 16
Reserve key ................................................................ 24, 25
Roadside assistance ......................................................... 10
Roadside assistance call See Tele Aid ............................................................... 148
Roof rack ......................................................................... 276
SSafety guidelines for the seat belt, emergency tensioning retractor and airbag ................................ 63
Screwdriver .....................................................................237
Seat belt warning lamp .................................................223
Seat belts ........................................................................... 46 Fastening ...................................................................... 48
Seat belt nonusage warning system ........................ 47 Unfastening .................................................................. 50
Warning lamp ........................................................... 223
Seat belts and integrated restraint system .................. 46
Seat bench ....................................................................... 120
Seats, folding (Third row seats) ................................... 126
Seats, front ........................................................................37 Heated seats .................................................................44
Manual seats ................................................................39
Power seats .................................................................. 40
Service indicator
See Flexible service system (FSS) ............................ 87
Side marker lamp .......................................................... 264
Skyview Top ....................................................................109 Emergency operation .............................................. 273
Sliding/pop-up roof ........................................................107 Emergency operation .............................................. 272
Express opening ........................................................108
Synchronizing .......................................................... 272
Snow chains ....................................................................179
SOS-call See Tele Aid ...............................................................148
Space-saver tire
Air pump ................................................................... 239
Spare parts service ....................................................... 284
Spare wheel ................................................................... 242 Space-saver tire ........................................................ 243