SERVICE CAMPAIGN BULLETIN
CAMPAIGN REF :

012

TITLE :

Software and rework requirements (8.2.2)

DOCUMENT # :

11 M 020

AFFECTED VEHICLES :

12C Coupe

SITUATION :

Quality Engineering at McLaren Automotive have released a
significant new software platform that offers improved
functionality and customer satisfaction. There are also some
enhancements to the vehicle that require manual installation.
The most noticeable benefits of this bulletin include:
Electrical Drain on Battery
o Battery drain countermeasures to avoid rapid
battery drain
o Reduced door glass short drop allowing entry
into vehicle with a flat battery
Keys
o Remote opening of the driver‟s door using the
key
o Improved electronic door key signal filtering to
alleviate vehicle access faults.
IRIS
o Improved stability
HVAC
o Improvement of side to side temperature control
within the climate control system;
Seats
o Introduction of intelligent seat recline
o Reduced airbag warning message faults with
changes to Occupancy Classification System
(OCS) sensors and seatbelt buckle wire check
Other
o Alleviation of rear lamp water ingress
o Durability enhancement of suspension
displacement sensor
o Rectification of instances when the seatbelt fails
to retract
o Reduction of body panel and interior rattles
o Improved serviceability of suspension
components
o Addition of door release strap warning label
o Improved calibration of brake light switch
o Improved reliability of Intake Sound Generator
(ISG)
o Improved stability of Electronic Park Brake
(EPB)
o Alleviation of alarm siren sounding continuously
o Durability enhancement of wiper hose.
o Alleviate the need to remove the ICPC (In Car
Personal Computer) fuse when the McLaren
Diagnosis system (MDS) is used.

1

PROCEDURE :

Perform all mechanical work and software updates as outlined.
The software updates are listed in the following chart:

MODULE

NEW SOFTWARE PART
NUMBERS

Body Controller (BC)

11M1215CP.05

SBC (Security Body Controller (SBC)

11M1075CP.06

Electronic Park Brake (EPB)

11M0935CP.03

Heating Ventilation and AirConditioning (HVAC)

11A4742CP.09

Door Module Left (DML)

11M1071CP.05

Door Module Right (DMR)

11M1070CP.05

Powertrain Chassis Control Unit
(PCCU)

11M0938CP.12

Seat Control Module Left (SCML)

11N2321CP.02

Seat Control Module Right (SCMR)

11N2320CP.02

Instrument Cluster (IC)

11M1180CP.11

IRIS System / Head Unit

11M2167CP.01

Engine Control Module (ECM)

11M1399CP.04

Care point: Both vehicle keys are required in order to perform this update.
Care point: It is necessary that 11 A 017 “Replacing water drain hose and retrofitting a securing clip” is not
outstanding. This work needs to be performed before 11 M 020 “Software and rework requirements” is carried out.
Care point: It is necessary that 11 A 018 “Additional sealant and gasket to fuel filler neck” is not outstanding. This
work needs to be performed before 11 M 020 “Software and rework requirements” is carried out.

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Care point: It is necessary that bulletin 11 M 012 “IRIS reception and operational stability issues” is not outstanding.
This bulletin needs to be performed before the new software platform is installed.
Care point: It is necessary that bulletin 11 M 021 “Software update” bulletin is not outstanding. This work needs to be
performed before 11 M 020 “Software and rework requirements” is carried out.
Care point: It is necessary that bulletin 11 N 003 “Manual Seat rework” is performed, on all affected vehicles, in
conjunction with this bulletin. Ensure you are familiar with both bulletins before commencing work.
Care point: It is necessary that bulletin 11 N 002 “Electric seat rework” is performed, on all affected vehicles, in
conjunction with this bulletin. Ensure you are familiar with both bulletins before commencing work.
Care point: It is necessary that bulletin 11 Q 002 “Tracker aerial rework” is performed, on all affected left hand drive
vehicles, in conjunction with this bulletin. Ensure you are familiar with both bulletins before commencing work.
Care point: It is necessary that bulletin 11 Q 003 “Tracker aerial rework” is performed, on all affected right hand drive
vehicles in conjunction with this bulletin. Ensure you are familiar with both bulletins before commencing work.
Care point: It is necessary that 11 G 001 “Right hand driveshaft check” is performed, on all affected vehicles, in
conjunction with this bulletin. Ensure you are familiar with both bulletins before commencing work.
Care point: The work required in this bulletin is significant and will require the vehicle to be kept overnight. It is
therefore important that no campaign is outstanding before the vehicle leaves the dealer premises. Check for all
outstanding campaigns on the dealer portal.
Care point: It is a requirement to make notes of your findings at indicated points within this bulletin. Please enter the
results on this documentation. You are then requested to confirm the results on page 83-86 and send this page back
through the created work package.
Care point: Ensure appropriate car covers and protection is used at all times.
Care point: It is necessary all replaced parts are returned via the normal warranty procedure.

WORK PACKAGE SECTION
Care point: Always refresh internet explorer before opening another work package.
1. A work package must be created prior to commencing work on each vehicle. McLaren Automotive will send an email to relevant personnel within the dealer network which contains data that must be entered within the work
package. Find the VIN number of the vehicle that you are going to work on and the coding string, short text and
long text will be alongside (1).

1

2. Open a work package within the dealer portal and within the ECU information section (2) select add code (3).

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2

3

3. Add the coding string IC_VARIANT_02 displayed in the drop down menu (4).

4

4. Populate the coding string with the data provided and copy and paste the short text and long text fields from the
details in the e-mail (5). Click save once completed (6).

4

5

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5. Once the coding list field has been populated select the update button (7)

7

5

6. Attach the McLaren Diagnostic System (MDS). Once a quick test has been performed record all Diagnostic
Trouble Codes (DTC)‟s within the affected control units on the table below:

STORED DIAGNOSTIC TROUBLE CODES

6

OCS SENSOR REPLACEMENT
REMOVAL :
Care point: As outlined in the work instructions it is necessary to put the vehicle into sleep mode (ignition off) and
leave in this state for a minimum of 5 minutes before disconnecting the battery ground line. This is to prevent
numerous vehicle calibration issues.
7. Please refer to A-RM-06N03-01-009 – Remove/install passenger seat.
8. Disconnect electrical connector (8) and remove securing nut (M10 13Nm) (9).
9. Remove OCS sensor shown (10). Continue to remove the remaining three sensors located in the front and rear of
the unit.

8

10

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INSTALLATION :
Care point: Use grease when inserting new sensors. McLaren Automotive recommend Fin grease, or equivalent fine
spray lubricant, is used. Avoid grease contact with the end face of the sensor.
Care point: Ensure mounting position is located correctly. It is vital that the sensors are fitted completely horizontal
and are exactly parallel to each other.
10. Install all four replacement OCS sensors. Leave the seat out of the vehicle until point 47. This will make it easier to
access the Body Controller. It will also allow the seat belt buckle and bolt to be replaced efficiently, if it is
necessary to replace on the passenger seat. The battery ground line can be left unplugged until point 20.

SEATBELT BUCKLE WIRE CHECK
11. Check the seatbelt wire is in accordance with the image on the left marked correct. If the wire is not as per the left
hand image, the seatbelt buckle will have to be replaced. The image on the right, marked incorrect, is an example
of a seatbelt buckle that has to be changed. The seatbelt buckle wire should not be taught, a „correct buckle‟ has

7

additional slack at the top of the stalk. There should be a loop spare as the difference between a „correct‟ and
„incorrect‟ seatbelt buckle wire is around 15-20mm.

Correct

Incorrect

Care point: If only one seatbelt buckle wire is incorrectly routed, only that component will need to be replaced. It is not
necessary to replace the buckles as a pair.
12. If the seatbelt buckle wire is routed correctly proceed to point 15. If the seatbelt buckle wire is incorrectly routed
the seat belt buckle and bolt will have to replaced by following points 13-14.
13. Please refer to A-RM-06N03-01-009 – Remove/install seat (if the driver seat has to be removed).
14. Please refer to A-RM-06N03-01-012 – Remove/install seat – seatbelt stalk
Warranty Information: If a seatbelt buckle and bolt does require replacement the parts required will be:
11N1942CP - Seatbelt - Buckle and Bolt - 2W (for manual seats)
11N2457CP - Seatbelt - Buckle and Bolt - 4W (for electric seats)
Additional time can be claimed for fitment of the seatbelt buckle and bolt using the additional costs section within your
campaign work package. However, please be aware time is already included to remove a passenger seat within this
bulletin. Time allowed for removing the driver seat would be included if the VIN is part of the seat rework bulletins 11 N
002 or 11 N 003.
These parts are the only items that will not be supplied free of charge by the McLaren Production Centre. The relevant
part should be claimed through the normal warranty procedure.

8

SEATBELT PROTECTOR CHECK
15. The following image is an example of the seatbelt assembly orientation as it is fitted within a vehicle.

16. Check the seatbelt protector orientation in relation to the metal ring (11). The image below shows how the
protector should be located in relation to this component.

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11

17. An example of the protector being fitted incorrectly is shown in the next image (12). Please note that it has been
fitted off-centre the metal ring. If the seatbelt protector has been fitted incorrectly it can become trapped by the
bolt.

12

Care point: Witness marks are also visible on the seatbelt protector if it has been fitted off-centre (13)

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13

18. If the seatbelt protector is fitted correctly no further action is necessary. Please go to point 20 to continue with the
bulletin.
Warranty Information: If a seatbelt protector does require replacement the parts will be supplied free of charge by
the McLaren Production Centre.
19. Only replace both seatbelt protectors if both have been incorrectly fitted. To complete this task please refer to ARM-06N04-01-001 – Remove/install seatbelt. Additional time of 0.5 hours per side can be claimed if necessary.

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REPLACEMENT OF BODY CONTROL UNIT AND ADDITION OF SBC INLINE FILTER
20. Re-connect battery ground lead. Please refer to A-RM-05M01-01-001 – disconnect/connect battery ground line.
Then put vehicle into ignition state 5.
21. Within MDS proceed to the Diagnostic Toolbox (14) and select SBC (15) then sequences (16). Un-pair
immobiliser (17) followed by arrow key (18)

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14
18

17
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22. Once a positive response is displayed on the screen exit the session and switch off ignition.
Care point: Ensure that the vehicle has had one sleep cycle prior to Body Controller removal.
23. Disconnect battery ground line. Please refer to A-RM-05M01-01-001 – disconnect/connect battery ground line.

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REMOVAL :
Care point: Carefully remove both ferrites (19) attached to the Body Control Unit (BC) and stick them back on once
the new unit is installed using Permelastic tape (00RL004).

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24. Please refer to A-RM-05M03-01-003 Remove/install electronic control unit – Body Controller.

INSTALLATION :
25. Install new Body Controller components in reverse order leaving the body harness connector loose that has the
ferrites attached.
Care point: The link harness is not marked in/out. It does not matter which end is plugged into the filter and body
controller.
26. Attach the inline filter in the location below (20) using Permelastic tape (00RL004). The loose plug on the body
harness connector, originally fitted to the Body Controller, should now be fitted to the filter housing (21). Using the
link harness (11M1950CP) plug one end into the remaining filter connector (22) and the other into the BC (23)

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22

20

23

21

27. Reconnect battery ground line. Please refer to A-RM-05M01-01-001 – disconnect/connect battery ground line.
Care point: Do not switch the vehicle on and off again for any reason until at least point 39. When the ignition is
cycled do not press the brake pedal in order to avoid the engine starting.
28. Connect McLaren Diagnosis System (MDS), put vehicle in ignition state 5 and proceed to Diagnostic toolbox
within Security Body Controller (SBC).
29. Within MDS proceed to the Diagnostic Toolbox (24) select SBC (25) then Sequences (26) Select Align Vehicle
Configuration (27) then the arrow key (28).

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24

26
28

25
27

30. The above procedure will force a sleep cycle to occur. Press start/stop button to put vehicle into ignition state 5
before following the next steps.
31. Within Reprogramming (29) select software level 11M1075CP.06 (30) and proceed to the software download by
selecting the tick button (31) followed by the arrow button (32).

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32

31

30

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32. When the download is successful cycle the procedure will force a sleep cycle to occur. Press start/stop button to
put vehicle into ignition state 5 before following the next steps.

33. Select Key Programming (33) followed by the arrow key (34) and follow procedure described by MDS.

34

33

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34. Select Programme VIN procedure (35). Select the arrow button to proceed (36).

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35

35. Within MDS proceed to the Diagnostic Toolbox (37). Select BC (38) then (39). Select software level
11M1215CP.05 (40) and proceed to the software download by selecting the tick button (41) followed by the arrow
button (42).

37

38

39

41
42

40

36. Select sequences section (43) then Programme VIN procedure (44). Select the arrow button to proceed (45).

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43
45

44

37. Select Align Vehicle Configuration (46) followed by the arrow key (47).

47

46

Care point: If bulletin 11 M019 “Software platform release” or 11 M 021 “Software update” has not been performed
the context field will display IC rather than IC_02.

38. Still within the Diagnostic Toolbox select IC_02 (48) and enter the Sequences section (49). Select Align Vehicle
Configuration (50) and then select the arrow key (51).

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49
51

50

48

ELECTRONIC PARKING BRAKE CONTROL UNIT
39. Within MDS proceed to the Diagnostic Toolbox (52) select EPB (53) then reprogramming (54). Select software
level 11M0935CP.03 (55) and proceed to the software download by selecting the tick button (56) followed by the
arrow button (57).

52

54

56

57

53

55

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40. Once the download is successful select the chassis button (58) to re-enter the scan now page. It is necessary to
re-scan the vehicle.

58

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41. Within the McLaren Diagnostic System (MDS) proceed to the Diagnostic Toolbox (59). Select EPB (60) then
Sequences (61) select G-Sensor Calibration (62) followed by the arrow button (63) to perform the G-Sensor
Calibration routine.

61

59

63

60

62

BRAKE LIGHT SWITCH ADJUSTMENT
Care point: Vehicle should be kept in ignition state 5 in so that the vacuum pump operates to provide brake servo
assistance.
42. Within the McLaren Diagnostic System (MDS) proceed to the Diagnostic Toolbox (64). Select ESP (65) then
Actual values (66). Select Analog Data (67) then Master Cylinder Pressure (68) then press the play button to
examine the data (69).

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64

69
66

65

67

68

43. Gently apply the brake pedal, by hand, until the brake lights come on. Ensure that the Master Cylinder reading is
between 2-6 Bar within MDS (70). If the figure is already within this tolerance go to point 46. If the figure is outside
of this range continue on with point 44 and follow the bulletin instructions.