Remove/install seat belt with emergency tensioning retractor

AR91.40-P-0630GH

Remove/install seat belt with emergency tensioning retractor

18.03.2019

Model

163.113/128/136/154/157/172/174/175

1

Cap

4

Belt end fitting

7

Automatic belt retractor

2

Screw

5

Screw

R12/2

Front passenger ETR [GUS] squib

3

Outer cover

6

Screw

 

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

Topical note

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

AH91.00-P-0002-01M

Assessment of airbag and belt tensioner units in accident vehicles

AH91.00-P-0006-01B

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

AH91.00-P-0004-01A

1

Move front seat to foremost position; tilt seat backrest forward

 See Owner's Manual.

2

Withdraw ignition key

3

Unclip cover (1) from outer trim (3)

4

Remove screw (2) from seat belt end fitting (4)

 Model 163 as of 9/1/99
Model 163 up to 8/31/99Bolt to belt end fitting

*BA91.40-P-1001-01D

 Torx bit set

*000589011000

5

Pull seat belt end fitting (4) out of front seat

6

Remove paneling on B-pillar

AR68.30-P-4700GH

7

Remove screw (5) of seat belt height adjuster from B-pillar

 Model 163 as of 9/1/99
Model 163 up to 8/31/99Bolt to belt height adjuster

*BA91.40-P-1004-01D

8

Detach connector coupling from front passenger seat belt tensioner squib (R12/2)

9

Remove screw (6) of seat belt retractor (7)

 Model 163 as of 9/1/99
Model 163 up to 8/31/99Bolt to front automatic belt retractor

*BA91.40-P-1008-01D

 Torx bit set

*000589011000

10

Remove seat belt retractor (7)

 The seat belt retractor must not be disassembled.
Never use oil or grease to eliminate noises. Warranty no longer applies to seat belt retractors that have been opened!

11

Check seat belt for damage



AP91.40-P-9150GH

Render emergency tensioning retractor units unusable

AR91.40-P-0611A

 Disposal of airbag unit and seat belt tensioners: the defective one must be disposed of properly and in an environmentally-appropriate way.

12

Install in the reverse order

 Installation: Observe various versions (left/right) of seat belt tensioners and ensure proper seat in catch.

13

Read out and erase fault memory

14

Perform diagnosis

 See DMAN.

 Seat belts/emergency tensioning retractors

Number

Designation

Model 163 up to 8/31/99

Model 163 as of 9/1/99

BA91.40-P-1001-01D

Bolt to belt end fitting

Nm

35

35

 Seat belts/emergency tensioning retractors

Number

Designation

Model 163 up to 8/31/99

Model 163 as of 9/1/99

BA91.40-P-1004-01D

Bolt to belt height adjuster

Nm

25

25

 Seat belts/emergency tensioning retractors

Number

Designation

Model 163 up to 8/31/99

Model 163 as of 9/1/99

BA91.40-P-1008-01D

Bolt to front automatic belt retractor

Nm

30 (+10/– 5)

30 (+10/– 5)