Third brake light BMW 3 Series touring E36/3

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BMW Installation Instructions

Third brake light BMW 3 Series touring E36/3

Technical knowledge is required

Installation time approx. 0.5 – 1 hour, which can vary according to the condition and fittings of the vehicle.

Contents

Chapter

  1. Summary of connections for additional wiring
  2. Installing the additional wiring harness
  3. Fitting the third brake light

Important safety information

Already existing third brake lights must be made idle.

In doing so, care must be taken to ensure that the third brake light (rear window) functions.

Important notes on fitting

Cable wiring

To avoid electrical interference keep precisely to the designated wiring paths in the vehicle!

Never use what are called “snap closures” as these can cause interference in the on-board electronics .

Make sure that when doing the wiring in the vehicle the cables are not kinked or damaged as otherwise faults may occur which can only be located later after extensive correction work. The costs incurred in this work are not refunded by BMW.

Required tools and other aids

Torx screwdriver

1. Summary of connections for additional wiring harnesses

Additional wiring harness for vehicles with check control module

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Third brake light BMW 3 Series touring E36/3

Item Design Connection to vehicle Wire colour Connect point
A Plug contact Plug x 11275 S blue red 9
B Bush contact Plug x 1075 blue red 14

Additional wiring harness for vehicles without check control module

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Third brake light BMW 3 Series touring E36/3

Item Design Connection to vehicle Wire colour Connect point
A Plug contact Plug x 11275 S blue red 9
B Bush contact Plug x 319 blue red 8
c Plug Cable connector blue red
D Socket housing Cable connector blue red

Overall view of wiring harness installation

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Third brake light BMW 3 Series touring E36/3

The additional wiring harness (1) for vehicles without check control module is to be installed at the following locations:

2 = plug x 319 to tail light
3 = plug x 11275 S to brake-lights wiring harness

The additional wiring harness (4) for vehicles with check control module is to be installed at the following locations:

3 = plug x 11275 S to brake-lights wiring harness
5 = check control module under steering column (left­ hand drive)
6 = check control module on the A-pillar in the area of

the footwell (right-hand drive)

2. Installing the additional wiring harness

Only for vehicles without check control module

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Third brake light BMW 3 Series touring E36/3

Remove the tail light cover and side trim panel in the boot. Pull bush (1) of the vehicle wiring harness out of the tail light. Remove bush contact from plug-in place 8 of the bush (1) and insert into the socket housing (D)

of the additional wiring harness. Insert bush contact (B) of the additional wiring harness (2) into the plug-in place 8 of the bush (1). Connect up plug (C) with

socket housing (D). Insert plug contact (A) of the additional wiring harness into bush (3) at plug-in place 9.

Only for vehicles with check control module

Necessary preparatory work to be done on the left side of the vehicle

  1. Dismantle the C and D column shroud.
  2. Dismantle the top shoulder and side trim panel of the boot.
  3. Dismantle the cover of the seat belt and tail lights.
  4. Dismantle any plate cover for CD changer etc.
  5. Dismantle rear and front seat.
  6. Dismantle side part of the back seat.
  7. Dismantle sill covering in the front and rear.
  8. Dismantle the lower instrument panel cover.
  9. Remove the cable ducts along the length of the main wiring harness.

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Third brake light BMW 3 Series touring E36/3

Install the bush contact (B) of the additional wiring harness (1) along the main wiring harness as far as the check control module. Take the white plug (2) out of the module and insert the bush contact (B) into the plug-in place 14. Insert the white plug (2) once more into the check control module.

Note

With right-hand drive the check control module is found on the right side of the vehicle.

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Third brake light BMW 3 Series touring E36/3

Install the additional wiring harness (1) along the main wiring harness as far as the left tail light. Insert plug contact (A) of the additional wiring harness into bush

(3) at plug-in place 9. Where there is residual cable (e.g. left-hand drive), tie away the cable.

3. Fit the third brake light

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Third brake light BMW 3 Series touring E36/3

Open boot lid (1), pull away the covering (2) from the rear window frame.

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Third brake light BMW 3 Series touring E36/3

Pull away the housing (1) from the brake-light reflector (2).

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Third brake light BMW 3 Series touring E36/3

Insert expanding nuts (1) into the two notches (2) in the boot lid (3).

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Third brake light BMW 3 Series touring E36/3

Connect plug (E) of the brake- lights wiring harness to the reflector (1). Insert reflector (1) with the hooks (2) into the notches (3) of the boot lid and push it upwards. Secure reflector (1) with the expanding nuts.

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Third brake light BMW 3 Series touring E36/3

Put on the new cover (1) and housing (2) for the brake lights.

Execute the function controls .

Reassemble all parts in the reverse order of operation.

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