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Central Locking System BMW 3 Series E36/5 (Compact)

EBA – 01 29 9 789 246
BMW Installation Instructions

For in ternal use in BMW Dealer Organisation only. Installation time is approx. 8 hours, though this may vary according to the condition of the vehicle and its fittings. Knowledge of electronics is required.

Notes

Following its installation, the central locking system must be coded in accordance with coding specifications.

The tailgate lock must be ordered separately and in accordance with the key code.

Tools and materials required

Phillips screwdriver
Socket wrench, A/F 8 mm, 10 mm
Regular screwdriver
1/2” drive socket, A/F 16 mm
1/2” extension
1/4″ extension
1/4” drive socket, A/F 6 mm, 7 mm, 8 mm, 10 mm
Side cutting pliers
Electric torch
Ratchet with 1/2” drive
1/2” Torx insert T50
Ratchet with 1/4” drive
1 /4” Torx insert T10, T20, T25

Contents

Chapter

  1. Necessary preliminary work
  2. Overview of supplementary wiring harnesses
  3. Layout of supplementary wiring harnesses
  4. Installing central locking element for tank filler cap and connecting wiring harness for central locking system
  5. Installing retrofit wiring harnesses
  6. Installing central locking element and tailgate lock
  7. Installing central locking element and microswitch in doors
  8. Installing central locking module and impulse switch
  9. Wiring diagram

1. Necessary preliminary work

Print out fault memory.
Disconnect battery.
Remove luggage-compartment panelling.
Remove driver and passenger seats.
Remove rear-seat bench and rear-seat backrest.
Remove front-left and front-right footwell panelling. Remove left and right-hand entrance strips.
Remove front footwell speakers.
Remove door panelling.
Remove left and right-hand door handles and door locks.
Remove rear-left and rear-right side panelling.
Remove support point for luggage-compartment cover on left-hand side.
Remove luggage-compartment lid covers.

2. Overview of supplementary wiring harnesses

Item Designation Cable colour Connection point in vehicle Plug-In station no.
1 Black 3-pin connector housing Central locking mechanism for tailgate M17 X311
2 Black 2-pin connector housing Central locking mechanism for tailgate M17 X315
A Wiring harness, central locking system
A1 Plug-in contact “unlock” White/blue Connector housing (1) X311 X311/2
A2 Plug-in contact “lock” White/green/

yellow

Connector housing (1) X311 X311/1
A3 Plug-in contact “power supply” Red/green Connector housing (1) X311 X311/3
A4 Plug-in contact “lock central locking mechanism” White Connector housing (2) X315 X315/1
A5 Plug-in contact “unlock central locking mechanism” Blue/grey Connector housing (2) X315 X315/2
A6 Fan connector X1234 “terminal 30A7” Red/green Under driver seat X1234
A7 Plug-in contact “terminal 58k” Grey/black Fan connector X461 under driver seat X461
A8 Plug-in contact “moving-off lock” Black/green Plug-In connection X13, front left X13/29
A9 Plug-in contact “terminal 30A35” Red/green/

yellow

Plug-in connection X13, front left X13/16
Item Designation Cable colour Connection point in vehicle Plug-In station no.
A10 Plug-in contact “terminal 30A7″ Red/green Plug-in connection X13, front left X13/13
A11 Plug-in contact “RXD diagnosis” White/yellow Fan connector X182 in fan-connector box X182
A12 Plug-in contact “TXD diagnosis” White/violet Fan connector X183 in fan-connector box X183
A13 Plug-in contact “centrally double-lock” White/red Door breaker connector X257, left X257/10
A14 Plug-in contact “terminal 30A7” Red/green Door breaker connector X257, left X257/11
A15 Plug-in contact “terminal 30A7” Red/green Door breaker connector X257, left X257/12
A16 Plug-in contact “unlock” White/green Door breaker connector X257, left X257/13
A17 Plug-in contact “lock” White/black Door breaker connector X257, left X257/14
A18 Plug-in contact “unlock central locking mechanism” Blue/grey Door breaker connector X257, left X257/15
A19 Plug-in contact “lock central locking mechanism” White Door breaker connector X257, left X257/16
A20 Plug-in contact “centrally double-lock central locking mechanism” Black Door breaker connector X257, left X257/17
A21 White 26-pin cable connector X13012 Central locking module A30, A-column, bottom right X13012
A22 Black 5-pin cable connector X13013 Central locking module A30, A-column, bottom right X13013
A23 Black 4-pin cable connector X13014 Central locking module A30, A-column, bottom right X13014
A24 Black 2-pin cable connector X38S Impulse switch S27, A-column, bottom right X388
A25 Plug-in contact “centrally double-lock” White/red Door breaker connector X256, right X256/10
A26 Plug-in contact “terminal 30A7” Red/green Door breaker connector X256, right X256/11
A27 Plug-in contact “terminal 30A7” Red/green Door breaker connector X256, right X256/12
A28 Plug-in contact “unlock” White/brown/

yellow

Door breaker connector X256, right X256/13
A29 Plug-in contact “lock” White/grey Door breaker connector X256, right X256/14
A30 Plug-in contact “unlock central locking mechanism” Blue/grey Door breaker connector X256, right X256/15
A31 Plug-in contact “lock central locking mechanism” White Door breaker connector X256, right X256/16
A32 Plug-in contact “centrally double-lock central locking mechanism” Black Door breaker connector X256, right X256/17
A33 Black 2-pin cable connector X312 Central locking mechanism, tank filler cap M16 X312
A34 Plug-in contact “terminal R A43” Violet/white Fan connector X1235, behind glove compartment X1235
A35 to A38 Plug-in contact “terminal 31 IV” Brown Fan connector X13003, behind glove compartment X13003
A39 Fan connector X441 “RXD diagnosis” White/yellow Fan-connector box behind glove compartment X441
A40 Fan connector X442 “TXD diagnosis” White/violet Fan-connector box behind glove compartment X442
A41 Fan connector X449 “centrally double-lock” White/red Fan-connector box behind glove compartment X449
A42 Fan connector X453 “unlock central locking mechanism” Blue/grey Fan-connector box behind glove compartment X453
A43 Fan connector X455 “lock central locking mechanism” White Fan-connector box behind glove compartment X455
A44 Fan connector X462 “centrally double-lock central locking mechanism” Black Fan-connector box behind glove compartment X462
Item Designation Cable colour Connection point In vehlcla Plug-In station no.
B Wiring harness, power supply
B1 Plug-in contact “terminal 30 A35″ Red/green/

yellow

Fuse carrier IV X10018, output terminal F35 X10018/10
B2 Plug-in contact “terminal 30 A7” Red/green Fuse carrier I X10015, output terminal F7 X10015/14
B3 Plug-in contact “terminal 30 A7″ Red/green Plug-in connection X13, front left X13/13
B4 Plug-In contact “terminal 30 A35″ Red/green/

yellow

Plug-in connection X13, front left X13/16
C Wiring harness, driver door
C1 Black 6-pin cable connector X660 Central locking mechanism, driver door M12 X660
C2 Yellow 2-pin cable connector X747 Lock switch, driver door S47 X747
C3 Plug-in contact “centrally double-lock” White/red Door breaker connector X257, left X257/10
C4 Plug-in contact “terminal 30A7” Red/green Door breaker connector X257, left X257/11
C5 Plug-in contact “terminal 30A7” Red/green Door breaker connector X257 X257/12
C6 Plug-in contact “unlock” White/green Door breaker connector X257 X257/13
C7 Plug-in contact “lock” White/black Door breaker connector X257 X257/14
C8 Plug-in contact “unlock central locking mechanism” Blue/grey Door breaker connector X257 X257/15
C9 Plug-in contact “lock central locking mechanism” White Door breaker connector X257 X257/16
C10 Plug-in contact “centrally lock central locking mechanism” Black Door breaker connector X257 X257/17
D Wiring harness, passenger door
D1 Black 6-pin cable connector X641 Central locking mechanism, passenger door M13 X641
D2 Yellow 2-pin cable connector X742 Lock switch, passenger door S49 X742
D3 Plug-in contact “centrally lock” White/red Door breaker connector X256 X256/10
D4 Plug-in contact “terminal 30A7″ Red/green Door breaker connector X256 X256/11
D5 Plug-in contact “terminal 30A7” Red/green Door breaker connector X256 X256/12
D6 Plug-in contact “unlock” White/brown/

yellow

Door breaker connector X256 X256/13
D7 Plug-in contact “lock” White/grey Door breaker connector X256 X256/14
D8 Plug-in contact “unlock central locking mechanism” Blue/grey Door breaker connector X256 X256/15
D9 Plug-in contact “lock central locking mechanism” White Door breaker connector X256 X256/16
D10 Plug-in contact “centrally lock central locking mechanism” Black Door breaker connector X256 X256/17

3. Layout of supplementary wiring harnesses

F 36 61 045 M

Wiring harness, central locking system A:

From central locking module, tank filler cap M16, along vehicle wiring harness to right-hand side of A-column, to left-hand side of A-column and to tailgate.

Wiring harness, power supply B:

From plug-in connection X13 into distribution box.

Wiring harness, driver door C:

From door breaker connector X257 along door wiring harness to central locking mechanism M12.

Wiring harness, passenger door D:

From door breaker connector X256 along door wiring harness to central locking mechanism M13.

4. Installing central locking element for tank filler cap and connecting wiring harness for central locking system

F 36 61 046 M

Remove securing screws (2).

Remove cover (1).

F 36 61 048 M

Open tank filler cap (1).

Remove plug from bore hole (2).

Insert concertina-type element (3) in bore hole (2) and secure with sleeve (4).

F 36 61 047 M

Insert Torx screws (2) in central locking element (1) and connect branch A33 to central locking element (1).

Push emergency unlocking element (3) onto actuating rod of central locking element (1) and insert central locking element (1) and actuating rod into concertina- type element (5) and secure with Torx screws (2) at the designated openings in the holder (6).

Secure wiring harness for central locking system A with cable straps (4).

Lay emergency unlocking element (3) over wheel house through opening into luggage compartment and secure with actuating button (it may be necessary to drill a bore hole of diameter 8 mm on right-hand side of luggage-compartment cover).

F 36 61 044 M

Insert rubber grommet (3) of wiring harness for central locking system A in cover (1) and secure cover (1) with screws (2).

Lay wiring harness for central locking system A along vehicle wiring harness to right-hand side of A-column.

5. Installing retrofit wiring harnesses

F 36 61 043 M

Remove and disconnect door breaker connector X256. Lay branches A25 to A32 (6) through A-column to connector X256 (3) and plug into connector X256 (3) according to the table below.

Lay door wiring harness D (7) from door (1) through articulated connecting piece (5) to connector X256 (4) and plug into connector X256 (4) according to the table below.

Wiring Wiring Cable Connector
harness A harness D colour X256 (3/4)
A25 D3 wh/rd X256/10
A26 D4 rd/gn X256/11
A27 D5 rd/gn X256/12
A28 D6 wh/br/ye X256/13
A29 D7 wh/gr X256/14
A30 D8 bl/gr X256/15
A31 D9 wh X256/16
A32 D10 bk X256/17

F 36 61 042 M

Install cable holders (1 and 3).

Lay wiring harness for passenger door D (2) as shown in illustration and secure with cables holders (1 and 3) and cable straps (4).

F 36 61 041 M

Lay branches A21 to A24 to right-hand side of A-column. Lay wiring harness for central locking system A along vehicle wiring harness to fan- connector box (1) behind glove compartment.

Important

One fan connector is violet/white and one connector is white/violet. When ignition lock is in position I (R), voltage must be applied to fan connector X1235 (violet/white connector).

Plug branch A34 “terminal R A43” (violet/white cable) into fan connector X1235 (violet/white cable).

Plug branches A35 to A38 “terminal 31 IV” (brown cable) into fan connector X13003 (brown cable).

Plug branch A39, fan connector X441 (white/yellow cable) into fan-connector box.

Plug branch A40, fan connector X442 (white/violet cable) into fan-connector box.

Plug branch A41, fan connector X449 (white/red cable) into fan-connector box.

Plug branch A42, fan connector X442 (blue/grey cable) into fan-connector box.

Plug branch A43, fan connector X455 (white cable) into fan-connector box.

Plug branch A44, fan connector X462 (black cable) into fan-connector box.

Lay wiring harness for central locking system A with branches A1 to A20 along vehicle wiring harness to left-hand side of A-column.

F 36 61 043 M

Remove and disconnect door breaker connector X257. Lay branches A13 to A20 (6) through A-column to connector X257 (3) and plug into connector X257 (3) according to the table below.

Lay door wiring harness C (7) from door (1) through articulated connecting piece (5) to connector X257 (4) and plug into connector X257 (4) according to the table below.

Wiring Wiring Cable Connector
harness A harness D colour X257 (3/4)
A13 C3 wh/rd X257/10
A14 C4 rd/gn X257/11
A15 C5 rd/gn X257/12
A16 C6 wh/gn X257/13
A17 C7 wh/bk X257/14
A18 C8 bl/gr X257/15
A19 C9 wh X257/16
A20 C10 bk X257/17

F 36 61 042 M

Install cable holders (1 and 3).

Lay wiring harness for driver door C (2) as shown in illustration and secure with cables holders (1 and 3) and cable straps (4).

F 36 61 040 M

Lay branches A11 and A12 to fan-connector box (1) on left-hand side of A-column.

Plug branch A11 “RXD diagnosis” (white/yellow cable) into fan connector X182 (white/yellow cable) of fan- connector box (1).

Plug branch A12 “TXD diagnosis” (white/violet cable) into fan connector X183 (white/violet cable) of fan- connector box (1).

F 36 61 039 M

Lay branches A8 to A10 from wiring harness for central locking system A and branches B3 and B4 from wiring harness for power supply to plug-in connection X13 (1) in driver-side footwell.

Disconnect plug-in connection X13 (1).

Press branch A8 “moving-off lock” (black/green cable) into connection 29 of connector X13 (1).

Press branch A9 “terminal 30 A35” (red/green/yellow cable) into connection 16 of connector X13(1).

Press branch A10 “terminal 30 A7” (red/green cable) into connection 13 of connector X13 (1).

Press branch B3 “terminal 30 A7” (red/green cable) into connection 13 of connector X13 (1).

Press branch B4 “terminal 30 A35” (red/green/yellow cable) into connection 16 of connector X13 (1),

Lay wiring harness for central locking system A along vehicle wiring harness to fan-connector station under driver seat.

Lay wiring harness for power supply B along vehicle wiring harness to wire protecting sleeve into distribution box.

F 36 51 128 M

Remove hexagon-head screws (1) from securing element for distribution box in left-hand footwell.

F 36 62 276 M

Remove cover of distribution box.

Remove Torx screws (2).

Pull upper part (1) of distribution box in upwards direction as far as vehicle wiring harness will allow.

F 36 51 129 M

Remove guide element (1) of vehicle wiring harness in direction of arrow in illustration.

Lay branches B1 and B2 from wiring harness for power supply B into distribution box.

Installation information

In order to avoid moisture penetration, make sure that the guide element (1) is inserted correctly in the distribution box.

F 36 64 112 M

Note

The illustration shows fuse carrier IV. The procedure is analogous for fuse carrier I.

Unlock locking device (1) of fuse carrier I X10015 (F1 – F10) (2) in direction of arrow in illustration.

Remove fuse carrier X10015 (2) in direction of arrow in illustration.

Remove fuse carrier IV (F31 – F40) X10018 in the same way.

F 36 64 114 M

Press branch B1 “terminal 30 A35” (1) (red/green/yellow cable) into connection 10 (output terminal F35) of fuse carrier IV X10018 (2).

Press branch B2 “terminal 30 A7” (1) (red/green cable) into connection 14 (output terminal F7) of fuse carrier I X10015 (2).

Install locking device of fuse carrier I X10015 and IV X10018.

Install fuse carrier I X10015 and IV X10018.

Plug 5A fuse into plug-in station no. 7 and 25A fuse into plug-in station no. 35.

F 36 61 049 M

Lay wiring harness for central locking system A along vehicle wiring harness, under cable cover (1) to fan- connector station under driver seat.

Connect branch A6 (fan connector X1234) “terminal 30 A7” (red/green cable) to fan-connector holder.

Plug branch A7 “terminal 58k” (grey/black cable) into fan connector X461 (2).

Lay wiring harness for central locking system A along vehicle wiring harness via the C-column to wire protecting sleeve of tailgate and secure with cable straps (3).

F 36 61 050 M

Lay wiring harness for central locking system A through articulated connecting piece (1) into tailgate. Lay wiring harness for central locking system A in tailgate as shown in illustration and secure with cable straps (2) and cable holders (3).

Plug branches A1, A2 and A3 into (supplied) black 3-pin connector X311 (4) and branches A4 and A5 into (supplied) black 2-pin connector X315 (5) according to the table below.

Branch Cable colour Connector
A1 White/blue X311/2
A2 White/green/yellow X311/1
A3 Red/green X311/3
A4 White X315/1
A5 Blue/grey X315/2

6. Installing central locking element and tailgate lock

F 36 61 051 M

Important

The tailgate lock (1) must be ordered separately and in accordance with the key code.

Remove lock (1) replace with new lock for central locking system.

Press retaining clip (5) into lock (1) as shown in illustration.

Install central locking element (2) and actuating rod (4) and secure with Torx screws (3).

Press actuating rod (4) into retaining clip (5) of lock (1). Connect cable connector X311 (6) and X315 (7) of wiring harness for central locking system A to central locking element (2).

7. Installing central locking element and microswitch in doors

Note

The illustration shows components from the right-hand door. The procedure is analogous for the left-hand door.

F 36 61 052 M

Important

Make sure that the actuating lever (4) and guide elements (5) are inserted correctly into the central locking module.

Remove cover of actuating lever (4) at door lock (2). Connect central locking element (1) to door lock (2) (as shown in illustration) so that locating lug of holder snaps into place.

Secure cable holders (3) to door lock (2) as shown in illustration.

F 36 61 053 M

Secure microswitch (2) at door handle (1) with retaining clip (3) as shown in illustration.

Secure holder (4) at door handle (1), press plug-in connection (5) into holder (4) and press cable of microswitch (2) into cable holder (6) of door handle (1).

Connect branches C1 and C2 and D1 and D2 to cable connector of microswitch and to central locking element and press wiring harness into cable holder. Install door handle and door lock in both doors and test for correct operation.

8. Installing central locking module and impulse switch

F 36 61 054 M

Note

If the threaded bolts for securing the central locking module (1) are not fitted on the A-column, the central locking module (1) is secured with (generally available) metal screws.

Remove ABS control unit (4).

Connect branches A21 (X13012), A22 (X13013) and A23 (X13014) to central locking module A30 (1) and secure central locking module A30 (1) to existing threaded bolts on the A-column behind ABS control unit (4) with plastic nuts.

Connect branch A24 (X388) to impulse switch S27 (2) and secure impulse switch S27 (2) (taking direction of installation into consideration – see arrow on impulse switch) with Torx screws (3) as shown in illustration.

Re-assemble vehicle parts in reverse sequence to disassembly.

Connect battery.

Code central locking system according to specifications.

Perform operational check.

9. Wiring diagram

F 36 61 056 M

Legend

rt = red
gn = green
ws = white
ge = yellow
vi = violet
sw = black
br = brown
gr = grey
bl = blu

A30 Central locking module
A46 Distribution fuse-board
A49 Fuse carrier IV
M12 Central locking mechanism, driver door
M13 Central locking mechanism, passenger door
M16 Central locking mechanism, tank filler cap
M17 Central locking mechanism, tailgate
S27 Impulse switch
S47 Lock switch, driver door
S49 Lock switch, passenger door
X13 Plug-in connection, front rear
X182 Fan connector, RXD diagnosis
X183 Fan connector, TXD diagnosis
X256 Door breaker connector, passenger door X257 Door breaker connector, driver door X311 Connector, central locking mechanism, tailgate
X312 Connector, central locking mechanism, tank filler cap
X315 Connector, central locking mechanism, tailgate
X388 Connector, impulse switch
X441 Fan connector, RXD diagnosis
X442 Fan connector, TXD diagnosis
X449 Fan connector, central double-locking 1
X453 Fan connector, unlock
X455 Fan connector, lock
X461 Fan connector, terminal 58k
X462 Fan connector, central double-locking 1
X641 Connector, central locking mechanism, passenger door
X660 Connector, central locking mechanism, driver door
X742 Connector, lock, passenger door
X747 Connector, lock, driver door
X1234 Fan connector, terminal 30 A7
X1235 Fan connector, terminal R A43
X10015 Fuse carrier I
X10018 Fuse carrier IV
X13003 Fan connector, terminal 31
X13012 Connector, central locking module, 26-pin
X13013 Connector, central locking module, 5-pin
X13014 Connector, central locking module, 4-pin

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