Active seat ventilation system retrofit kit BMW Z4 (E85)

EBA – 01 29 0 302 388
BMW Installation Instructions

Important information

Subject to technical modifications.

Installation time

The installation time is approx. 3.5 – 4 hours, which may vary according to the condition of the car and the equipment in it. This installation time is for each seat.

Retrofit kit No.

82 30 0 000 047
82 30 0 302 299

Target group

These installation instructions are primarily designed for use within the BMW dealership organisation and by authorised BMW service companies. In any event the target group for these installation instructions is specialist personnel trained on BMW cars with the appropriate specialist knowledge.

All work must be completed using the latest repair manuals, circuit diagrams, servicing manuals and work instructions in a rational order using the prescribed tools (special tools) and observing current health and safety regulations.

Ordering instructions

The seat and backrest covers must be ordered separately in the appropriate colours (see EPC for part numbers).

Installation information

Ensure that the cables/lines are not kinked or damaged as you install them in the car.

Additional cables/lines that you install must be secured with cable ties.

If the specified PIN chambers are occupied, bridges, double crimps or twin-lead terminals must be used.

All the figures show LHD cars, proceed in exactly the same way on RHD cars.

This active seat ventilation retrofit system does not require coding.

TIS Refer to the Technical Information System (TIS) for more information.

  • See the EBA CD or ASAP (After Sales Assistance Portal) for explanations of the pictograms.
  • Do not archive the hard copy of these installation instructions since daily updates are made by ASAP.

Special tools required

Pliers (52 0 050)

Contents

Section

1. Preparations
2. Parts list
3. Retrofit wiring harness connection diagram
4. Installation and cabling diagram
5. To install the power supply wiring harness
6. To install and connect the blower motors
7. Concluding work
8. Circuit diagram for the active seat ventilation system BMW Z4 E85

1. Preparations

TIS instruction No.
! Refer to the safety instructions for handling airbag modules and pyrotechnical belt tensioners. Incorrect handling may cause the pyrotechnical belt tensioner or side airbag to deploy and thus cause injuries. 32 34 . . .
Conduct a brief test
Disconnect the negative pole of the battery 12 00 . . .
The following components must be removed first of all:
Glove compartment 51 16 360
Footwell trim on the passenger side 51 45 181
Front seat, left or right 52 13 000
Backrest cover, left or right 52 13 405
Seat cover, left or right 52 13 400
Pedal trim 51 45 185

2. Parts list

Active seat ventilation system retrofit kit BMW Z4 (E85)

Legend

A Power supply wiring harness
B Seat wiring harness
C Backrest wiring harness
D Blower motor (8x)
E Toggle switch
F Backrest cover with microperforations
G Seat cover with microperforations
H Miniature connector (2x)

3. Retrofit wiring harness connection diagram

Active seat ventilation system retrofit kit BMW Z4 (E85)

Item Description Signal Cable colour /

Cross-section

Connection location in the car Abbreviation / Slot
A Power supply wiring harness
A1 SW 2-pin plug On seat wiring harness, branchB1 X13528
A2 Joint connector contact Terminal 31 BR

0.75 mm2

In the joint connector behind the glove compartment X18726
A3 Cable branch Terminal 15 VI

0.75 mm2

Connect to the existing GN/WS cable with a miniature connector on the fuse box X1429
B Seat wiring harness
B1 SW 2-pin plug On power supply wiring harness, branch A1 X13528
B2 Blade terminal contact Terminal 15 VI

0.75 mm2

On the toggle switch X3158

PIN 1

B3 Blade terminal contact Terminal 15 VI

0.75 mm2

On the toggle switch X3472

PIN 2

B4 SW 3-pin plug On seat blower motor X13673
B5 SW 3-pin plug On seat blower motor X13674
B6 SW 3-pin plug On seat blower motor X13675
B7 SW 3-pin plug On seat blower motor X13676
B8 WS 3-pin plug On backrest wiring harness, branchC1 X13530

Active seat ventilation system retrofit kit BMW Z4 (E85)

Item Description Signal Cable colour /

Cross-section

Connection location in the car Abbreviation / Slot
C Backrest wiring harness
C1 WS 3-pin plug On seat wiring harness, branchB8 X13530
C2 SW 3-pin plug On backrest blower motor X13669
C3 SW 3-pin plug On backrest blower motor X13670
C4 SW 3-pin plug On backrest blower motor X13671
C5 SW 3-pin plug On backrest blower motor X13672

4. Installation and cabling diagram

Active seat ventilation system retrofit kit BMW Z4 (E85)

Legend

1 Joint connector X18726
2 Fuse box
A Power supply wiring harness
B Seat wiring harness
C Backrest wiring harness
D Seat blower motor (4x)
D Backrest blower motor (4x)
E Toggle switch

5. To install the power supply wiring harness

Active seat ventilation system retrofit kit BMW Z4 (E85)

[1] Connect branch A3, VI cable, to the black plug X1429 on the GN/WS cable (1) using a miniature connector H.

Active seat ventilation system retrofit kit BMW Z4 (E85)

Connect branch A2, BR cable, to joint connector X18726.

Connection on left-hand side of the car

Active seat ventilation system retrofit kit BMW Z4 (E85)

Route branch A1 behind the heater under the centre console and carpet to the seat.

Connection on right-hand side of the car

Active seat ventilation system retrofit kit BMW Z4 (E85)

Route branch A1 under the centre console and carpet to the seat.

6. To install and connect the blower motors

Active seat ventilation system retrofit kit BMW Z4 (E85)

[2] Position the blower motors D as shown on the backrest padding (2) and mark the contours.

Cut out the backrest padding (1) accordingly in a cylindrical shape.

Affix the blower motors D flush with the surface.

Active seat ventilation system retrofit kit BMW Z4 (E85)

Cut cone-shaped pieces (2) out of the foam cylinders (1) you cut out earlier.

Seal all passive ventilation holes (3) with foam cones (2).

Active seat ventilation system retrofit kit BMW Z4 (E85)

Pull the trimming wires (1) out of the old backrest cover and insert them into the new backrest cover F.

TIS Modify the belt guide. See RA 52 13 405.

Fit the new backrest cover F on to the backrest padding and seat frame.

Active seat ventilation system retrofit kit BMW Z4 (E85)

Install wiring harness C as shown in the backrest frame (1) and connect branches C2 – C5 to the blower motors. Secure the wiring harness C to the seat frame (1) with cable ties.

Active seat ventilation system retrofit kit BMW Z4 (E85)

On the passenger seat the blower motors must be positioned in the cavities in the seat occupation mat.

Position the blower motors D on the seat padding (1) and mark the contours.

Dimension a: 75 mm

Cut out the seat padding (1) accordingly in a cylindrical shape.

Affix the blower motors D flush with the surface.

Active seat ventilation system retrofit kit BMW Z4 (E85)

Cut cone-shaped pieces (2) out of the foam cylinders (1) you cut out earlier.

Seal all passive ventilation holes (3) with foam cones (2).

Active seat ventilation system retrofit kit BMW Z4 (E85)

Pull the trimming wires (1) out of the old seat cover and insert them into the new seat cover G.

Fit the new seat cover G on the seat padding and seat frame.

Active seat ventilation system retrofit kit BMW Z4 (E85)

Install wiring harness B as shown in the seat frame (1) and connect branches B4 – B7 to the blower motors.

Connect branch B8 to branch C1.

Secure wiring harness B to the seat frame (1) with cable ties.

Active seat ventilation system retrofit kit BMW Z4 (E85)

[3] Mark the seat trim (1) and cut out the marked area (2).

Dimension a: 19.5 mm

Dimension b: 6.8 mm

Active seat ventilation system retrofit kit BMW Z4 (E85)

Thread branches B2 – B3 through the seat trim (1) and connect the toggle switch E.

Clip the toggle switch E into the seat trim (1).

Active seat ventilation system retrofit kit BMW Z4 (E85)

Connect branch A1 to branch B1. Secure the plug connection A1/B1 to the seat isolation switch (1) using a cable tie.

7. Concluding work

This system does not require coding

  • Re-assemble the car
  • Conduct a brief test
  • Conduct a function test

8. Circuit diagram for the active seat ventilation system BMW E85

Active seat ventilation system retrofit kit BMW Z4 (E85)

Legend

M160

M161

M162

M163

M164

M165

M166

M167

S1

X1429

X3368

X3369

X3472

X13528

X13530

X13669

X13670

X13671

X13672

X13673

X13674

X13675

X13676

X18726

X18750

X18751

Y1

Y2

Backrest blower motor

Backrest blower motor

Backrest blower motor

Backrest blower motor

Seat blower motor

Seat blower motor

Seat blower motor

Seat blower motor

Toggle switch

SW 12-pin plug

Terminal 15 connector

Terminal 15 connector

Toggle switch

SW 2-pin plug

WS 3-pin plug

SW 3-pin plug, backrest blower motor

SW 3-pin plug, backrest blower motor

SW 3-pin plug, backrest blower motor

SW 3-pin plug, backrest blower motor

SW 3-pin plug, seat blower motor

SW 3-pin plug, seat blower motor

SW 3-pin plug, seat blower motor

SW 3-pin plug, seat blower motor

Terminal 31 joint connector

Terminal 31 connector

Terminal 31 connector

Miniature connector

To standard wiring harness

Cable colours
BL blue GN green
BR brown VI violet
GE yellow WS white
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