Impact Sensor - Contacts Rear Seat Guide Rail

Group 61

Electrical System


Bulletin Number
61 08 91 (3296)


Woodcliff Lake, NJ
July 1991
Service Engineering


SUBJECT: Impact Sensor Mounting

MODELS: 735iL, 750iL, (E32) - Vehicles Produced 02/91


Situation: The guide rail for the electrically adjustable left side rear seat cushion may contact the top of the impact sensor in the above mentioned vehicles if the impact sensor is installed in an incorrect location.

Vehicles
Affected: In order to determine if a specific vehicle in this range is affected by the Service Action, it will be necessary to utilize the "Service Menu" of the DCS (Dealer Communication System). Proceed to item # 6 "Vehicle History Inquiry" and enter the chassis number (last seven) of the vehicle in question. Based on the response of the system, either proceed with the corrective action or take no further action.

The chassis number ranges listed below are only for informational purposes and are not to be considered as the only deciding factor. The affected vehicles are limited to vehicles within these ranges, but not all of these vehicles are affected by the Service Action. The final decision factor is the DCS inquiry.

Models Chasis Number Range

735iL DC 28625 - DC 28833

75OiL DC 79508 - DC 79598

Correction: Inspect impact sensor for correct mounting location and replace sensor if installed in incorrect location.


Implementation: This important preventative repair is vital in our combined effort to ensure BMW customer satisfaction. Your support and cooperation in this Service Action is highly appreciated.

Please review your records and contact those customers whose vehicles are in the above mentioned chassis number range and which have not had this Service Action performed. Further, all vehicles in dealer inventory should receive this quick update prior to retail sale (i.e., PDI, used vehicle reconditioning, etc.).





Procedure: 1) Remove electrically adjustable left side rear seat cushion. Refer to repair instructions 52 20 130.

2) Note installation location of sensor (see diagrams below).

3) Remove impact sensor if mounted at incorrect location (location "B" in diagram).

4) Install a new impact sensor (P/N 61 31 1 388 224) at location "C " in diagram.

Note: The impact sensor must be mounted vertically (terminals at bottom of installed sensor).

5) Install seat cushion.


A - Section of seat box outer panel
B - Impact sensor mounted incorrectly
C - Impact sensor mounted correctly

The impact sensor cable plug must face downwards.





Service Action
Label
Instructions: This Service Action has been assigned code number 53. After the prescribed work has been performed, obtain a label (SD 89-006) and

a) Emboss your BMW dealer warranty number in the middle of the label;

b) Punch out code number 53 printed on the label; and, c) Bend label to crease an edge and remove the backing paper. Then affix the label to the "B" pillar (on the driver's front door) as shown.


If the car already has a label from a previous Service Action/Recall Campaign, affix the label next to the old one. Do not affix one label on top of another one because a number from an underlying label could appear in the punched out hole of the new label.

Warranty
Information: Reimbursable by Campaign Entry.

Defect code: 00 61 01 11 00
Work package # 1: Inspect impact sensor (replacement not required)
Labor allowance: 4 FRU

Work package # 2: Replace impact sensor (P/N 61 31 1 388 224)
Labor allowance: 5 FRU