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Home >> Mercedes Benz >> 2021 >> GT 53 AMG >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Exterior Trim >> Seats, Bunks, Restraint Systems (2 Of 3) -- 290 Chassis >> Testing & Repair >> Remove/Install Seat Belt End-Fitting Tensioner - AR91.40-P-0632FR

Remove/Install Seat Belt End-Fitting Tensioner - AR91.40-P-0632FR

Model 257, 290 

with code 460 (Canada version) 

Model 257, 290 

with code 494 (US version) 

G16556508Courtesy of MERCEDES-BENZ USA
WARNING Risk of injury  during testing and repair operations related to pyrotechnical components Do not expose pyrotechnical component parts to temperatures above 100°C or 212°F. Disconnect current supply when working on such component parts. AS91.00-Z-0008-01A 
Topical note  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
  Notes on safety-relevant components   AH00.00-Z-0019-01A
  Information, assessment and legal requirements when working with, handling and storing pyrotechnical components   AH91.00-Z-0000-10A
REMOVINGINSTALLING Remove/install     
1 Move front seat forward and all the way upward.    
2 Detach ground line of on-board electrical system battery.   AR54.10-P-0003FR
3 Remove cover (1).    
4 Remove seat belt end fitting.   AR91.40-P-1030-02FRA 
    TORQUE SPECIFICATION Screw, cover for seat belt end-fitting tensioner *BA91.40-P-1012-01U 
5 Disconnect electrical connection (2). SPECIAL TOOL Removal lever Fig 1
6 Unscrew screw (4) and remove seat belt end-fitting tensioner (3). TORQUE SPECIFICATION Bolt, seat belt end-fitting tensioner *BA91.40-P-1013-01U 
7 Install in the reverse order.    
8 Check Supplemental Restraint System (SRS) using vehicle diagnosis system.    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-06FR
SEAT BELTS/EMERGENCY TENSIONING RETRACTORS

Number Designation Model 257 Model 290
BA91.40-P-1012-01U Screw, cover for seat belt end-fitting tensioner Nm 4 4
SEAT BELTS/EMERGENCY TENSIONING RETRACTORS

Number Designation Model 257 Model 290
BA91.40-P-1013-01U Bolt, seat belt end-fitting tensioner Nm 35 35
Fig 1: Identifying Removal Lever (203 589 04 33 00)
G16555909Courtesy of MERCEDES-BENZ USA