Remove/install seat belt with emergency tensioning retractor

AR91.40-P-0630GN

Remove/install seat belt with emergency tensioning retractor

22.01.2019

Model

463.236/237/346

as of model year 2010 up to model year 2013

/FACELIFT 2012

Model

463.243/245/246/248/249/270/271/323/333/341

as of model year 2010 up to model year 2013

1

Nut

2

Screw

3

Automatic belt retractor

R12/1

Driver ETR [GUS] squib

R12/2

Front passenger ETR [GUS] squib

 

Remove/install

 Warning

Risk of injury caused by 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

 Caution

Risk of injury. Injury may result when the tension in the spring in the automatic belt retractor is released.

Never disassemble automatic belt retractors.

AS91.00-Z-0002-01A

Legal requirements on handling and storing airbags and emergency tensioning retractor units

AH91.00-P-0004-01A

Assessment of airbag and belt tensioner units in accident vehicles

AH91.00-P-0006-01B

1

Check seat belts and buckles for external damage and correct operation



Model 463.236/237/346
as of model year 2010 up to model year 2013
/FACELIFT 2012Model 463.243/245/246/248/249/270/271/323/333/341
as of model year 2010 up to model year 2013

AP91.40-P-9150GI

2

Remove paneling on B-pillar

Model 463.243/245/246/248/249/323/333 up to 5/31/04
as of model year 2010 up to model year 2013Wheelbase 2850 mm

AR68.30-P-4700GN

Model 463.236/237/346
as of model year 2010 up to model year 2013/FACELIFT 2012

AR68.30-P-4700GY

3

Remove nut (1) of front seat belt guide bracket

 Bolt/nut on front seat belt guide bracket

*BA91.40-P-1002-01C

4

Remove bolt (2) of front automatic belt retractor (3)

 Bolt on front seat belt retractor

*BA91.40-P-1004-01C

5

Disconnect electrical connector from driver seat belt tensioner squib (R12/1) or front passenger seat belt tensioner squib (R12/2)

Topical note

Notes on performing repair, body work and welding on vehicles with airbags and RTE units

AH91.00-P-0002-01M

6

Remove automatic belt retractor (3)


Never use oil or grease to eliminate noises.
Otherwise, the function may be impaired. Warranty no longer applies to automatic belt retractors (3) that have been opened.

 It is perfectly normal for the inertia reel to make a noise when rolling up the seat belt strap. The only available response to negative customer feedback regarding unacceptable noise levels is to replace the seat belt assembly in its entirety.

 Installation: Note if inertia reel is for left or right version.

If the seat belt with seat belt tensioner is replaced,



the defective seat belt with seat belt tensioner must be disposed of properly.

7

Install in the reverse order

 Seat belts/emergency tensioning retractors

Number

Designation

Model 463
up to model year 2019

Model 463
as of model year 2019

BA91.40-P-1002-01C

Bolt/nut on front seat belt guide bracket

Nm

35

35

 Seat belts/emergency tensioning retractors

Number

Designation

Model 463
up to model year 2019

Model 463
as of model year 2019

BA91.40-P-1004-01C

Bolt on front seat belt retractor

Nm

35

35