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SI B12 05 16
Engine Electrical Systems

June 2016
Technical Service

N55 - ENGINE MALFUNCTION WARNING DUE TO VAPOR FORMING IN THE FUEL SYSTEM

This Service Information bulletin supersedes SI B12 05 16 dated April 2016
MODEL

F07 (5 Series Gran Turismo)

F10 (5
Series
Sedan)

F12 (6 Series
Convertible)

F13 (6
Series
Coupe)

With the N55 engine produced to 3/2012
(with the Continental high pressure fuel
pump)
SITUATION

The Engine “Drivetrain Malfunction” Check Control warning is displayed and the Service Engine
Soon (MIL) Lamp may also be on.
In areas where winterized fuel is used, this situation may occur after prolonged periods of engine
idling or “stop and go” driving.
Additional symptoms that may be present:
z

rough running

z

poor engine performance

z

difficulty in starting the engine.

Either or both of the following fault codes can be stored in the DME.
11A002 – Fuel high pressure, plausibility: Pressure too low
11AC02 – Fuel high pressure, plausibility, cold start: Pressure too low
In addition any of the following faults may also be stored:
119404 - Rail pressure sensor, signal: Permanently stuck
118001 - Mixture control: mixture too lean
118401 - Mixture control: mixture too lean; large deviation
CAUSE

Vapor formation in the fuel system from fuel quality characteristics of certain winter fuel blends
along with high engine compartment temperatures.

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CORRECTION

Replace low pressure fuel pump along with revised DME software (control strategy of the new low
pressure fuel pump).
PROCEDURE

.
1. Perform the recommended test plans using the latest version of ISTA.
2. Check production date on fuel delivery module.
Remove the rear seat and service cover to inspect the production date of the fuel delivery
module as shown in the attachment.
Follow ISTA repair instruction – REP 16 14 200 (also attached).
Is the production date code on the module label earlier than “01/10/13” (October 1,
2013)?
YES - replace fuel delivery module and then go to step 3.
NO – Go to step 3.
3. Using ISTA/P 3.59.0 or higher, perform the conversion to change the DME software for fuel
delivery pressure regulation.
Conversion, control fuel feed pressure
New target integration level: F0xx 16-07-501 or higher
This will add the E-Word (KV01) to the vehicle order (VO) and install DME software which
regulates the low-side supply pressure up to 5.8 bar under certain conditions to prevent vapor
formation.
Note that ISTA/P will automatically reprogram and code all programmable control modules that do
not have the latest software.
Always connect a BMW approved battery charger/power supply (SI B04 23 10).
For information on programming and coding with ISTA/P, refer to Centernet / Aftersales Portal /
Service / Workshop Technology / Vehicle Programming.
PARTS INFORMATION

Part Number

Description

Quantity

16 11 7 341 301

Fuel delivery module

1

WARRANTY INFORMATION

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Covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light
Trucks or the BMW Certified Pre-Owned Program.
This repair is also covered by the terms of the Federal and/or State-specific Emissions Warranty
(dependent on the vehicle’s model year, state of registration and its inclusion on the “modelspecific” list of covered components) that applies to the BMW model(s) listed.
The BMW Certified Pre-Owned Limited Warranty applies to BMW vehicles that have and are still
within the BMW Certified Pre-Owned coverage period, but beyond Emissions Warranty coverage
that applies.
Defect Code:

10 42 31 59 00

Labor Operation:

Labor Allowance:

Description:

00 00 006

Refer to KSD2

Performing “vehicle test” (with vehicle
diagnosis system – checking faults)

Refer to KSD2

Connect an approved battery
charger/power supply (indicated in
KSD 2 as Charging battery)

Work time (WT)

Performing vehicle diagnosis – test
module

Refer to KSD2

After performing item “A” or “B”
below - Programming / encoding
control unit(s)

And:
61 21 528
And, as necessary:
61 00 006
And:
61 00 730

If you are using a Main labor code for another repair, use the Plus code labor operation 00 00 556
instead.
And:
A. Fuel Supply Module “Inspection Only” (Replacement “is not” required, claim with the
above)
F07
Labor Operation:

Labor Allowance:

Description:

52 25 637

Refer to KSD2

Removing and installing seat-backrest
frame for right rear seat (Electric – Sub

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group “25”)
Or:
Refer to KSD2

Removing and installing seat-backrest
frame for right rear seat (Manual
Electric – Sub group “26”)

Labor Operation:

Labor Allowance:

Description:

52 24 505

Refer to KSD2

Removing and installing or replacing
rear seat (Sub group “24”)

52 26 637

Or, for the:
F10, F12 and F13

Or, for the:
F10 with the Through-Load System Option
Labor Operation:

Labor Allowance:

Description:

52 26 505

Refer to KSD2

Removing and installing or replacing
rear seat (Sub group “26”)

Labor Operation:

Labor Allowance:

Description:

16 99 000

1 FRU

Work time to check the fuel delivery
module’s date production date

And:

Work time labor operation code 16 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.
Or:
B. Replacing the Fuel Supply Module “is” Required (Claim separately)
Covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light
Trucks or the BMW Certified Pre-Owned Program.
This repair is also be covered by the terms of the State-specific Emissions Warranty (dependent on
the vehicle’s model year, state of registration and its inclusion on the “model-specific” list of
covered components).

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The BMW Certified Pre-Owned Limited Warranty applies to BMW vehicles that have and are still
within the BMW Certified Pre-Owned coverage period, but beyond Emissions Warranty coverage
that applies.
Defect Code:

16 14 04 12 00

Labor Operation:

Labor Allowance:

Description:

Refer to KSD2

Extracting fuel from the fuel tank and
filling (Select the applicable Plus work
labor operation (16 00 610 to 16 00
680) that applies to the amount of fuel
extracted – 10 liter increments)

Refer to KSD2

Removing and installing or replacing
fuel pump(s) (not including extracting
and refiling fuel)

See KSD2 Main Group
“16”

And:
16 14 610

Refer to KSD2 for the corresponding flat rate unit (FRU) allowances.
Vehicle Programming and Coding
Control module failures that occur during programming:
z

Please claim these consequential repairs under the defect code listed in this bulletin and use
the applicable KSD2 labor operations.
Other Repairs

Control module failures that occur prior to programming and/or additional work is performed as a
result of performing the ISTA diagnostics and related test plans:
z

When covered under an applicable limited warranty, claim these repairs using the applicable
defect code and labor operations in KSD2.

ATTACHMENTS

View PDF attachment B120516 Fuel delivery module inspection.
View PDF attachment B120516 REP 16 14 200.
[ Copyright ©2016 BMW of North America, Inc. ]

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