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SB-10043910-3124
SI B24 03 13
Automatic Transmission

April 2014
Technical Service

This Service Information bulletin replaces SI B24 02 12 dated May 2013.
designates changes to this revision
SUBJECT

N52T/N55 with 8HP45: Delay in Engine Response
MODEL

.
E70 (X5)
E71 (X6)
F07 (5 Series Gran Turismo)
F10 (5 Series Sedan)
Produced to March 2012
With the N55 engine and 8HP45 transmission
F10 (5 Series Sedan)
Produced to September 2011
With the N52T engine and 8HP45 transmission
F25 (X3)
Produced to April 2012
With the N52T engine and 8HP45 transmission
SITUATION

A customer may complain of a delay in engine response after decelerating at low road speeds and then
reaccelerating. This can occur when the transmission remains in a high gear due to a delay in the transmission
downshifting.
This situation can be more noticeable while driving on roads with slight turns or with an increasing gradient.
CAUSE

Unfavorable EGS and DME software
CORRECTION

Perform diagnostics using ISTA/D and work through the recommended test modules found by manually selecting
the specific path below:
Activities / Function Structure / 01 Engine / Engine electronics / [!] Current fault patterns / Power loss/acceleration
problems
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Depending on the vehicle and engine variant, program the vehicle using the latest version of ISTA/P only if the
current integration level is lower than what is listed below.
For F10 and F25 N52T vehicles:
The final measures, with improved DME and EGS software, were introduced with the integration levels:
F010-13-07-501/F025-12-07-508
For E70, E71, F07, F10 and F25 N55 vehicles:
Improved DME and EGS software was introduced in 3/2012 and ISTA/P 2.46.0 with the following integration
levels:
E070-12-03-500/F001-12-03-500/F010-12-03-500/F025-12-03-501
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.
WARRANTY INFORMATION

Covered under the terms of the BMW New Vehicle/SAV Limited Warranty or the BMW Certified Pre-Owned
Program.
Certain repairs may also be covered by the terms of the Federal, State or BMW Emissions Warranty.
To determine if any applicable Federal, State or BMW Emissions Warranty coverage applies prior to performing
repairs, please see SI B01 02 11 for “Emissions Warranty Coverage” and refer to the “Glossary of Emission
Coverage” attachment for more information.
Defect Code:

10 42 03 71 00

A. E70 (X5) and E71 (X6)
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)

Refer to KSD2

Programming / encoding control unit(s)
(not including CAS)

Refer to KSD2

Programming / encoding control unit(s)
(with CAS)

and
61 21 528
and
61 00 710
or
61 00 720

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or
B. F07 (5 Series Gran Turismo), F10 (5 Series Sedan) and F25 (X3)
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)

Refer to KSD2

Programming/encoding control unit(s)

and
61 21 528
and
61 00 730

Labor operation code 00 00 006 is a Main labor operation. If you are using a Main labor code for another repair,
use the Plus code labor operation 00 00 556 instead.
Refer to KSD2 for the corresponding flat rate unit (FRU) allowance. Enter the Chassis Number, which consists of
the last 7 digits of the Vehicle Identification Number (VIN). Click on the “Search” button, and then enter the
applicable flat rate labor operation in the FR code field.
If control module(s) fail to reprogram or initializations are required, the additional work must be claimed
using separate labor operations found in KSD2 under the defect code listed above.
[ Copyright ©2014 BMW of North America, Inc. ]

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