Remove/install voltage converter for airbag and emergency tensioning retractor

AR91.60-P-0627B

Remove/install voltage converter for airbag and emergency tensioning retractor

25.04.2018

Model

124 up to 8/31/87

15

Nuts

Variant 2 at front wall pillar is shown

X29/9

10-pin electrical connector

Variant 1 at footrest is shown

1

10-pin electrical connector

C1

Energy storage

N24

Voltage converter

Variant 2 at front wall pillar is shown

17

Stud

18

Bolts

C1

Energy storage

N24

Voltage converter

 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

Information, assessment and legal requirements when working with, handling and storing pyrotechnical components

AH91.00-Z-0000-10A



Remove

1

Switch off ignition and remove ignition key

2

Disconnect battery ground line

3

Remove floor covering in front passenger footwell

4

Remove front passenger door sill

Variant 2 at front wall pillar.

5

Remove door edge guard up to instrument panel

Variant 2 at front wall pillar.

6

Remove trim of passenger side front wall pillar

Variant 2 at front wall pillar.

7

Loosen nuts (15) of footrest on front passenger footwell firewall

Variant 1 at footrest.

8.1

Release and disconnect 10-pin electrical connector (X29/9) in front passenger footwell

Variant 2 at front wall pillar.

8.2

Release and disconnect 10-pin electrical connector (1) in front passenger footwell

Variant 1 at footrest.

9

Release and disconnect electrical connector on voltage converter (N24)

10.1

Unscrew screws/bolts, remove voltage converter (N24)

Variant 1 at footrest.

10.2

Remove retainers from the screw bolts (17) and remove voltage converter (N24)

Variant 2 at front wall pillar.



Install

11.1

Screw voltage converter (N24) down on footrest with screws/bolts

Variant 1 at footrest.

11.2

Install voltage converter (N24), screw down with screw bolts (17) and mount retainers

Variant 2 at front wall pillar.

12

Connect electrical connector on voltage converter (N24)

13

Check system with test equipment

 Tester

*126589102100

14.1

Connect 10-pin electrical connector (X29/9) in front passenger footwell

Variant 2 at front wall pillar.

14.2

Connect 10-pin electrical connector (1) in front passenger footwell

Variant 1 at footrest.

15

Install trim on passenger side front wall pillar

Variant 2 at front wall pillar.

16

Attach door edge guard

Variant 2 at front wall pillar.

17

Fasten nuts (15) of footrest on front passenger footwell firewall

Variant 1 at footrest.

18

Install front passenger door sill

Variant 2 at front wall pillar.

19

Install front passenger footwell floor covering

20

Connect ground cable to battery



Check

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

21

Start engine, SRS/RS indicator lamp must go off after approx. 10  s

If SRS/RS indicator lamp does not go off after approx. 10  s.



Check airbag/emergency tensioning retractor system with test equipment.

 Tester

*126589102100