NHTSA ID Number: 11017026
Manufacturer Communication Number: LI54.71-P-078778
TSB/Document Date: 2025-04-15
Summary
Complaint Rear cross traffic activation without obvious cause. Cause Verify customer concern with the assistance of the Operator's Manual: • Symbol displayed on headunit. • Audible warning that was presented. • Exact location of event. • Is the concern repeatable in the same location? Remedy If concern was verified and is repeatable in one location, please update both rear radar brackets to the newest variant as listed in the EPC (Parts Catalog). When new parts are received, please verify the correct new part numbers prior to installing.
254 (with code 772) and 297 Rear Cross Traffic Braking
Topic number
LI54.71-P-078778
Version
5
Function group
54.71 - Camera and radar-assisted assistance systems
Date
4/4/25
Validity
254 (ONLY with code 772) and 297
Reason for change
Adding note on the new brackets.
Complaint
Rear cross traffic activation without obvious cause.
Cause
Verify customer concern with the assistance of the Operator's Manual:
•
•
•
•
Symbol displayed on headunit.
Audible warning that was presented.
Exact location of event.
Is the concern repeatable in the same location?
Remedy
If concern was verified and is repeatable in one location, please update both rear radar brackets to the newest variant
as listed in the EPC (Parts Catalog).
When new parts are received, please verify the correct new part numbers prior to installing.
IMPORTANT: When installing the new rear radar brackets, the lower portions of the brackets are part of the assembly
and need to be left on (see attached pictures identified in red).
Attachments
File
Description
Representative Left Bracket.jpg
07.04.2025 15:14
© Copyright Mercedes-Benz
AG
CCUSHWA
Page 1 / 3
Representative Right Bracket.jpg
Disclaimer
NOTE: The information contained in this document is intended for use by trained, professional technicians with the
knowledge to properly and safely perform diagnosis and repairs on Mercedes-Benz vehicles, using Mercedes-Benz
approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and
provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect
is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a
symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes
resulting in the same or similar symptoms or conditions described in this document, and trained professional service
technicians must use their diagnostic skills to make evaluations on a case-by-case basis. The information contained
in this document does not guarantee warranty coverage nor does it extend the vehicle’s warranty in any way.
Symptoms
Chassis/suspension > Brake system > Service brake > Function > Vehicle brakes harder than expected
Chassis/suspension > Brake system > Service brake > Function > Brakes by itself
Communication/information > Assistance and warning systems > Lane Assistant > Implausible brake application
Communication/information > Assistance and warning systems > Parking assist > PARKTRONIC > Function > Rear
Cross Traffic Alert brakes without obvious cause
Operation numbers/damage codes
07.04.2025 15:14
© Copyright Mercedes-Benz AG
CCUSHWA
Page 2 / 3
Op. no.
Operation text
07.04.2025 15:14
© Copyright Mercedes-Benz AG
Time
CCUSHWA
Damage
code
Note
Page 3 / 3
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TSB/Document ID: LI54.71-P-078778
Replacement Service Bulletin Number:
MFR Communication Date: 2025-04-04
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING
MFR Component System:
MFR Component Subsystem:
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