8/23/25, 4:42 AM

63 10 23_MOISTURE/CONDENSATION IN THE REAR TAILLAMPS

SIB 63 10 23
MOISTURE/CONDENSATION IN THE REAR TAILLAMPS

2025-08-19

This Service Information Bulletin (Revision 3) replaces SI B63 10 23 dated March 2025.
What’s New (Specific text highlighted):
New model added.

☒

THIS REPAIR IS MOBILE FRIENDLY

MODEL
E-Series
G45
G60
G70
U10
U11

Model Description
X3 Sports Activity Vehicle
5 Series Sedan
7 Series Sedan
X2 Sport Activity Coupe
X1 Sport Activity Vehicle

SITUATION
Condensation is present in the inner surface in one or both (inner and/or outer) taillamps.

CAUSE
Water inside the taillamps can be caused by two situations:
A. Thermal/environmental conditions that result in the formation of condensation is not a defect.
B. Water/moisture in the taillamp housing is considered a defect.

CORRECTION
Determine whether the vehicle is affected by normal/naturally occurring thermal/environmental conditions
which have condensation.
A. If moisture is being caused by normal environmental conditions, no correction is needed.
B. If moisture is determined to be caused by a defect, repair as needed.
A. Normal/natural condensation.

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63 10 23_MOISTURE/CONDENSATION IN THE REAR TAILLAMPS

B. Water/moisture in the taillamp.

PROCEDURE
Determine whether moisture is caused by normal/naturally occurring thermal/environmental conditions.
If normal environmental conditions are the cause of the condensation, no correction is required.
The taillamps will dissipate the condensation through venting. This venting process should be completed
within 24 hours with the vehicle sitting in temperatures of 68 – 77 degrees Fahrenheit.

If the taillamps do not vent/dry within the described time frame, inspect the taillamp for leaks/damage and
replace it if necessary.

PARTS INFORMATION
Parts are only required in situations where it is determined that a physical issue with the taillamp assemblies
or related components are the cause for excessive water entry. In those cases, repair the vehicle as
necessary depending on the specific issue found.
To determine the part number that applies to the specific vehicle being repaired, enter the VIN/chassis
number into either ETK or AIR, this will consider the specific equipment and/or options that are fitted to the
vehicle.

CLAIM INFORMATION
This Service Information Bulletin provides technical, diagnosis, and repair-related information.
Damage and/or issues caused by outside influences are not covered under the BMW limited warranties.
Eligible and Covered Work/Repairs
Repairs that address a verified defect in materials and/or workmanship are covered under the terms of the
BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks.
To submit a claim, please follow the established and applicable warranty policy and procedures
(Labor/Part/Sublet) that apply to the repair being performed.
Refer to AIR for the corresponding Repair Code. Obtain the flat rate labor operation codes (including the
diagnosis*) that apply and the applicable flat rate unit (FRU) allowances.
Only one Main labor operation code can be claimed per repair visit.
*Based on which one applies to your center, please refer to SI B01 01 20 or B01 07 20 for the applicable
procedure for documenting, claiming, and explaining, on the RO and in the claim comments, your diagnosis
work time (WT), job/repair work time (WT), and the vehicle repairs your center performed, unless otherwise
required by State law.

FEEDBACK REGARDING
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BULLETIN
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Technical Feedback
Warranty Feedback
Parts Feedback

63 10 23_MOISTURE/CONDENSATION IN THE REAR TAILLAMPS

To submit feedback for the technical topic of this bulletin: Submit your
feedback in the rating box at the top of this bulletin
To submit feedback for the CLAIMS section of this bulletin: Submit an IDS
ticket to the Warranty Department, or use the chat available in the
Warranty Documentation Portal
To submit feedback for the PARTS section of this bulletin: Submit an IDS
ticket to the Parts Department

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63 10 23_MOISTURE/CONDENSATION IN THE REAR TAILLAMPS

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