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Remove/install restraint systems control unit - AR91.60-P-0624SX

MODEL 216.3, 221.0 /1 

Illustrated on model 221 

Fig 1: Identifying Restraint Systems Control Unit Components
G07601850Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
DANGER Risk of injury  when performing testing or repair work on airbag or emergency tensioning retractor units. Store airbag units with deployment side facing up; do not expose to temperatures greater than 100 °C. When working on these units, disconnect the power supply.   AS91.00-Z-0001-01A
NOTES Notes on performing repair, body work and welding on vehicles with airbags and ETR units   AH91.00-P-0002-01M
IMPORTANT Assessment of airbag and seat belt tensioner units in accident vehicles   AH91.00-P-0006-01B
1.1 Remove center console Model 221 AR68.20-P-2000SX
1.2 Remove COMAND controller unit Model 216 AR82.85-P-1100SC
2 Disconnect ground line at starter battery and at on-board electrical system battery   AR54.10-P-0003SX
3.1 Unscrew bolts (1) and remove bracket (2) Model 221 without code (582) Rear air conditioner  
4.1 Detach air duct (3) from AC housing and remove from vehicle Model 221 without code (582) Rear air conditioner  
5 Expose electrical wiring harness on right next to restraint systems control unit (N2/7)    
6 Remove nuts (4) and lift restraint systems control unit (N2/7) until electrical connectors (5) are accessible. Disconnect electrical connectors (5) and remove restraint systems control unit (N2/7) IMPORTANTInstallation:  Ensure that ground line is correctly seated at rear attachment point of restraint systems control unit (N2/7).  
TORQUE SPECIFICATION *BA91.60-P-1012-01L
NOTES Notes on avoiding damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
7 Install in the reverse order    
8.1 Test supplemental restraint system (SRS) with STAR DIAGNOSIS, parameterize and program restraint systems control unit (N2/7) After installing new restraint systems control unit (N2/7).  
REFER TO SELF-DIAGNOSTIC SYSTEMS Connect STAR DIAGNOSIS and read out fault memory AD00.00-P-2000-04A
STAR DIAGNOSIS diagnosis system *WH58.30-Z-1048-13A
AIRBAG

Number Designation Model 216 Model 221
BA91.60-P-1012-01L Nut of restraint systems control unit to vehicle floor Nm 8 8
COMMERCIALLY AVAILABLE TOOLS

Number Designation
WH58.30-Z-1048-13A STAR DIAGNOSIS diagnosis system, Compact Passenger Car 6511 1801 00