Mercedes-Benz ML320. Service manual - part 2

 

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Mercedes-Benz ML320. Service manual - part 2

 

 

UNDEPLOYED AIR BAG/ETR 

After deploying procedures and/or diagnostic testing have confirmed air bag module and/or ETR is 
undeployable, contact vehicle manufacturer for proper disposal instructions. 

REMOVAL & INSTALLATION 

CLOCKSPRING ASSEMBLY 

Removal & Installation 

1. Before proceeding, see SERVICE PRECAUTIONS . Disable air bag system. See DISABLING & 

ACTIVATING 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) counterclockwise until clockspring cannot be rotated. Remove clockspring 
mounting screws as necessary. Disconnect all necessary electrical connectors. Remove clockspring 
assembly. To install, reverse removal procedure. Activate air bag system. See DISABLING & 
ACTIVATING AIR BAG SYSTEM
 . Perform system operation check to ensure system is functioning 
properly. See SYSTEM OPERATION CHECK .  

CONTROL UNIT 

Removal & Installation (C Class) 

1. Before proceeding, see SERVICE PRECAUTIONS . Disable air bag system. See DISABLING & 

ACTIVATING AIR BAG SYSTEM . Remove ignition key. Remove shift lever cover bezel. Lift shift 
lever cover enough to disconnect electrical connector. Remove shift lever cover.  

2. Remove storage compartment mounting screws from center console. Remove storage compartment. 

Remove ashtray. Disconnect electrical connectors as necessary. Disconnect control module electrical 
connector. Remove control module mounting bolts. Remove control module.  

3. To install, reverse removal procedure. Ensure control module arrow points to front of vehicle. Set 

parameters and program new control module with Hand-Held Tester (965 589 00 01 00). Activate air bag 
system. Perform system operation check to ensure system is functioning properly. See SYSTEM 
OPERATION CHECK
 .  

Removal & Installation (E Class) 

1. Before proceeding, see SERVICE PRECAUTIONS . Disable air bag system. See DISABLING & 

ACTIVATING AIR BAG SYSTEM . Remove ignition key. Remove gear shift cover panel. Remove 
ashtray and ashtray housing at front of console. Remove radio (if necessary).  

2. Remove center console right side cover screws and right side cover. Disconnect electrical connector for 

control unit. Remove 2 control unit mounting screws. Remove control unit.  

WARNING:

Failure to follow service precautions may result in air bag deployment and 
personal injury. See SERVICE PRECAUTIONS . After component 
replacement, check system operation. See SYSTEM OPERATION CHECK .

 

1998 Mercedes-Benz ML320 

AIR BAG RESTRAINT SYSTEM 1998 AIR BAG RESTRAINT SYSTEMS Mercedes-Benz

  

me 

 

3. To install, reverse removal procedure. Ensure control module arrow points to front of vehicle. Set 

parameters and program new control module with Hand-Held Tester (965 589 00 01 00). Activate air bag 
system. Perform system operation check to ensure system is functioning properly. See SYSTEM 
OPERATION CHECK
 .  

Removal & Installation (S Class) 

1. Before proceeding, see SERVICE PRECAUTIONS . Disable air bag system. See DISABLING & 

ACTIVATING AIR BAG SYSTEM . Remove ignition key. Remove radio. Remove ashtray. Remove 
wooden surround for ashtray. Remove shift lever cover mounting screws. Push shift lever cover toward 
rear of vehicle and remove in an upward direction.  

2. Remove center console cover screws. Remove center console cover by pulling from bottom in an upward 

direction. When removing covers, disconnect electrical connectors as necessary. Disconnect control 
module electrical connector. Remove control module.  

3. To install, reverse removal procedure. Ensure control module arrow points to front of vehicle. Set 

parameters and program new control module with Hand-Held Tester (965 589 00 01 00). Activate air bag 
system. Perform system operation check to ensure system is functioning properly. See SYSTEM 
OPERATION CHECK
 .  

Removal & Installation (SL Class) 

1. Before proceeding, see SERVICE PRECAUTIONS . Disable air bag system. See DISABLING & 

ACTIVATING AIR BAG SYSTEM . Remove ignition key. Remove radio. Push up and pull out heater 
control panel. Unplug 2 connectors. Remove screw in middle of storage tray.  

2. Bend up at top corners and lift out storage tray. Remove screws below storage tray. Lift wood trim panel 

at rear, pull down and out of catches. Unplug switch connectors and remove wood trim panel. Unplug 
connectors at control unit and remove Torx mounting screws. Remove control unit.  

3. To install, reverse removal procedure. Ensure control module arrow points to front of vehicle. Set 

parameters and program new control module with Hand-Held Tester (965 589 00 01 00). Activate air bag 
system. Perform system operation check to ensure system is functioning properly. See SYSTEM 
OPERATION CHECK
 .  

Removal & Installation (CLK 320 & SLK 230) 

1. Before proceeding, see SERVICE PRECAUTIONS . Disable air bag system. See DISABLING & 

ACTIVATING AIR BAG SYSTEM . Remove ignition key. Remove cover on center console. Remove 
cover on shift lever. Remove ash tray housing with storage compartment at front of center console. 
Unplug connectors at control unit and remove Torx mounting screws. Remove control unit.  

2. To install, reverse removal procedure. Ensure control module arrow points to front of vehicle. Set 

parameters and program new control module with Hand-Held Tester (965 589 00 01 00). Activate air bag 
system. Perform system operation check to ensure system is functioning properly. See SYSTEM 
OPERATION CHECK
 .  

DRIVER-SIDE AIR BAG MODULE 

NOTE:

Air bag module and steering wheel must be replaced following a collision in 

 

1998 Mercedes-Benz ML320 

AIR BAG RESTRAINT SYSTEM 1998 AIR BAG RESTRAINT SYSTEMS Mercedes-Benz

  

me 

 

Removal & Installation 

1. Before proceeding, see SERVICE PRECAUTIONS . Disable air bag system. See DISABLING & 

ACTIVATING AIR BAG SYSTEM . Remove ignition key. Remove 2 Torx screws from rear of 
steering wheel. Lift off air bag module enough to unplug connector from rear of module. Place module 
away from work area, with pad facing upward.  

2. To install, reverse removal procedure. Tighten Torx screws to specification. See TORQUE 

SPECIFICATIONS . Activate air bag system. Perform system operation check to ensure system is 
functioning properly. See SYSTEM OPERATION CHECK .  

SIDE AIR BAG UNIT - DRIVER-SIDE & PASSENGER-SIDE 

Removal & Installation 

1. Before proceeding, see SERVICE PRECAUTIONS . Disable air bag system. See DISABLING & 

ACTIVATING AIR BAG SYSTEM . Remove ignition key. Drill out rivets at retaining plate of side air 
bag unit. Pull air bag unit out of door. Disconnect connector at driver-side air bag squib. Remove unit 
from vehicle. See Fig. 2 .  

2. To install, connect connector so that connector audibly clicks when connector engages. Install unit in 

door trim panel and rivet using only special rivets (Part No. 003 990 0097). Perform system operation 
check to ensure system is functioning properly. See SYSTEM OPERATION CHECK . 

which air bag was deployed.

 

1998 Mercedes-Benz ML320 

AIR BAG RESTRAINT SYSTEM 1998 AIR BAG RESTRAINT SYSTEMS Mercedes-Benz

  

me 

 

 

1998 Mercedes-Benz ML320 

AIR BAG RESTRAINT SYSTEM 1998 AIR BAG RESTRAINT SYSTEMS Mercedes-Benz

  

me 

 

 

 

 

 

 

 

 

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