2/3/2020

11 01 17_FAULT 118002 - MIXTURE TOO RICH - SETS DURING WINTER WITH COLD AMBIENT TEMPS

SIM 11 01 17
2020-01-06
FAULT 118002 - MIXTURE TOO RICH - SETS DURING WINTER WITH
COLD AMBIENT TEMPS
This Service Information Bulletin (Revision 8) replaces SI M11 01 17 dated May 2019.
What’s New (Specific text highlighted):
• Situation (reference to winter fuel deleted)
• Model
• Procedure

MODEL
E-Series
F54

Model Description
MINI Clubman

F55

MINI Hardtop 4 Door

F56

MINI Hardtop 2 Door

F57

MINI Convertible

F60

MINI Countryman

Production Date
December 2014 thru
June 2019
October 2013 thru June
2019
April 2013 thru July
2019
November 2014 thru
June 2019
November 2015 thru
September 2019

Affected Engine
B36M, B46M, B48O
B36M, B38M, B46M
B36M, B38M, B46M,
B48M, B48O,
B36M, B46M, B48O
B36M, B46M, B48O,
XB2H

SITUATION
The Service Engine Soon (MIL) light is on, together with the following fault stored in the Digital Motor Electronics
(DME).
Fault Code:
118002

Control Unit:
DME

Fault Code Text:
Mixture control: Fuel-air mixture too rich

In the situation being described, the fault is only stored during the cold winter months.
Note: Various other causes for a rich mixture fault are possible and should not be overlooked.

CAUSE
DME software diagnostic is too sensitive
This situation is most likely to occur if the driving profile is one of frequent cold engine starts and/or
primarily short distance trips (idle / low load operation) where full engine operating temperature is
not reached
Due to the lower engine oil temperatures crankcase vapors that contain a higher fuel content are
not completely drawn off via the crankcase ventilation system
A false DME adaptation routine could then lead to this fault being set.

CORRECTION
1.
2.
3.
4.
5.

Check for rich mixture condition.
Program the vehicle with ISTA Next.
Replace the engine oil.
Inspect cylinder head cover and replace as needed.
Perform the Quality Certification I (QC1) on a new vehicle.
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11 01 17_FAULT 118002 - MIXTURE TOO RICH - SETS DURING WINTER WITH COLD AMBIENT TEMPS

PROCEDURE
Do not replace any parts unless a definite failure is identified during diagnosis.
Perform diagnosis using the latest version of ISTA Next.

1. Check the current mixture adaptation:
Path: ECU function - DME / Diagnostic scan / 721 Mixture Adaptation
Note: Let the engine idle at operating temperature. If the mixture adaptation drops significantly below 1.0, it
indicates a rich mixture condition.

2. Replace the engine oil and filter on a warm engine.
Refer to SI M11 01 15: Engine Oil Quick Reference and Drain Plug Torque
Do not reset the Condition Based Service (CBS) for engine oil service unless the oil service shows to be
currently recommended or due on the key reader.

3. Upgrade the vehicle software using ISTA Next to the appropriate level shown below:
Programming is only required if the integration level is earlier/lower than the target level.
All except vehicles equipped with the XB2H engine:
Model
F54 (Cooper Clubman)
F55 (Cooper Hardtop 4 door)
F56 (Cooper Hardtop 2 door)
F57 (Cooper Convertible)
F60 (Cooper Countryman)
Vehicles equipped with the XB2H engine.
Model
F60 PHEV (MINI Cooper S E Countryman ALL4)

Target
F056-19-03-540 or higher

Target
F056-19-11-510 or higher

Note that ISTA Next will automatically reprogram and code all programmable control modules that do not have
the latest software.
Always connect a MINI-approved battery charger/power supply (SI M04 08 09).
For information on programming and coding with ISTA, refer to CenterNet / TIS / Technical Documentation /
Programming and Diagnostics / Programming Documentation.
Only for vehicles equipped with the B36 and B38 engine produced to October 31, 2015:

4. Inspect the version of the cylinder head cover.
Older version shown.

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11 01 17_FAULT 118002 - MIXTURE TOO RICH - SETS DURING WINTER WITH COLD AMBIENT TEMPS

Newer version shown.
Note: This updated version can be identified by the
additional supports on crankcase ventilation ports
(arrows).

Replace the cylinder head cover and profile gasket if the older version is equipped.
Note: Additional information may be found in FUB-HIL-HI-0009-A17 - Versions of the cylinder head cover, and in
M11 03 15.
Only for vehicles which have not yet received the QC1 described in the model list above:

5. During the cold season, replace the engine oil as described in step #2 prior to delivering the vehicle to
the customer.

PARTS INFORMATION
Obtain and confirm the part numbers for your specific vehicle by entering the chassis number in ETK/AIR which
takes into account specific equipment and/or options.
Part Number
11 42 8 570 590
83 21 2 365 955

Description
Oil filter
MINI Original Engine Oil LL14FE+ 0W-20 (fully
synthetic)

Refer to ETK

Cylinder Head Cover

Quantity
1
B36/B38 – 4.25 liters
Or
B46/B48 – 5.5 liters
1

WARRANTY INFORMATION
Defect Code: 10 42 90 01 00 Fx B36 B38 B46 B48 Fault memory mixture control

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Refer to the Attachment for Warranty Information. The section below is also included in the Warranty
Attachment, but is duplicated here to enable use of the SIB link.
Note: Only claim the engine oil and filter change as stated above when SI M01 02 15 (CBS Engine Oil Service
Task: New MINI Vehicles in Inventory/in Stock) does not apply or when the engine oil service does not show
Recommended or Due.

Supporting Materials
picture_as_pdf M110117 Attachment Warranty Information.pdf

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Attachment to SI M110117

May 2019

FAULT 118002 - MIXTURE TOO RICH SETS DURING WINTER WITH
COLD AMBIENT TEMPERATURES
WARRANTY INFORMATION
The following repair is covered under the terms of the MINI New Passenger Car Limited Warranty.
Defect Code:
10 42 90 01 00
Fx B36 B38 B46 B48 Fault memory mixture
control
Dealers that experience Cold Winter Months


New vehicles in-stock only (No in-service date), just prior to the first delivery, fault code
118002 is not set/stored in the DME
Labor Operation:
11 99 000

Labor Allowance:
3 FRU (All except the
F57); 4 FRU (F57)

Description:
Work time to change the engine oil and filter without
a CBS data reset

Note: Only claim the engine oil and filter change as stated above when SI M01 02 15 (CBS Engine Oil
Service Task: New MINI Vehicles in Inventory/in Stock) does not apply.
Or:
All applicable vehicles that have fault code 118002 set/stored in the DMELabor Operation:
00 00 006

Labor Allowance:
Refer to AIR

Description:
Performing vehicle test (with vehicle diagnosis
system – checking faults) (Main work)

Or:
00 00 556

Refer to AIR

Performing vehicle test (with vehicle diagnosis
system – checking faults) (Plus work)

And:
61 21 528*

Refer to AIR

Connect an approved battery charger/power supply
(indicated in AIR as Charging battery)

If you are using a Main labor code for another repair, use the Plus code labor operation 00 00 556
instead of 00 00 006.
*Claim 61 21 528 only when it is not included in another flat rate labor operation.

And, additionally for the:
e-Vehicle
Labor Operation:
61 25 910

Labor Allowance:
Refer to AIR

Description:
Recharging high-voltage battery unit (to high voltage
charging socket)

1

And, only if the:
Vehicle’s I-level is lower than 18-07-500Labor Operation:
61 00 730

Labor Allowance:
Refer to AIR

Description:
Programming/encoding control unit(s)

And, if applicable:
For MINI vehicles equipped with the B36 and B38 engine produced to October 31, 2015 only
Labor Operation:
11 12 510

Labor Allowance:
Refer to AIR

Description:
Replacing cylinder head cover

And, together with the items above that apply:
Labor Operation:
11 99 000

Labor Allowance:
3 FRU (All except the
F57); 4 FRU (F57)

Description:
Work time to change the engine oil and filter without
a CBS data reset

Note: Only claim the engine oil and filter change as stated above when SI M01 02 15 (CBS Engine Oil
Service Task: New MINI Vehicles in Inventory/in Stock) does not apply or when the engine oil service
does not show Recommended or Due.
Refer to AIR for the corresponding flat rate unit (FRU) allowances.
Work time labor operation code 11 99 000 is not considered a Main labor operation. Also, since the
work time FRU allowance to be claimed is specified, a separate punch time is not required. However, it
still requires an explanation on the repair order and in the claim comments section.
And:
Sublet – Bulk Materials
Sublet Code 4

See sublet
reimbursement
calculation below

Reimbursement for used quantities of required operating
fluids, including engine oil only when it is not claimed
under the MINI Maintenance Program (applicable MINI
part numbers). Please do not use these part numbers for
claim submission.

Sublet reimbursement calculation for claiming the used quantity applicable repair-related bulk materials
(MINI part numbers) is at the dealer net price plus your dealer’s handling.
Enter this material cost in sublet and itemize the amount on the repair order and in claim comment section.
Programming and Encoding - Vehicle Control Units
During the same workshop visit, if a vehicle also requires another Technical Campaign or repair
that also includes programming and encoding the control units, the programming procedure
may only be invoiced one time.
A. The programming procedure automatically reprograms and encodes all vehicle control modules
which do not have the latest software i-level. If one or more control module failures occur during
this programming procedure:
2



Please claim this consequential control module-related repair work under the defect code listed
in this bulletin with the applicable AIR labor operations.

Please explain this additional work (The why and what) on the repair order and in the claim comments
section.
B. For control module failures that occurred prior to performing this programming procedure:


When covered under an applicable limited warranty, claim this control module-related repair
work using the applicable defect code and labor operations (including diagnosis) in AIR.

Overlapping Labor Procedure
If invoicing the AIR flat rate labor operation codes for other repair work results in overlapping labor, for
those flat rate labor operations that are affected, you are able to:


Replace the stated AIR FRU allowance with a reduced FRU value to eliminate the overlapping
labor.

For help in identifying the overlapping labor, please refer to the AIR FRU Plausibility Check
(Overlapping Labor Tool) that is located in the AIR Client.
Eligible other repair work being claimed under a different defect code will require separate punch times.
On the repair order and in the claim comment section, please identify and itemize those labor
operations being claimed with a reduced FRU value.
Other Repairs
If other eligible and covered work is performed after carrying out the ISTA diagnostics and other
diagnosis, claim this work with the applicable defect code and labor operations (including diagnosis)
that are listed in the AIR.

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