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SIB 54 04 12: Retractable Hard Top (RHT) Is Not Stacking Properly - Frame Bent

Retractable Hard Top (RHT) Is Not Stacking Properly - Frame Bent on BMW E90/E92/E93/F30 and other models (2007–2013); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10150112 · Mar 2013 · also written SI B54 04 12, B540412

What it covers

A service bulletin tells BMW technicians how to diagnose or fix a known issue. It is not a recall: a repair under a bulletin is normally paid by the owner unless the car is still under warranty or a warranty extension applies.

Retractable Hard Top (RHT) Is Not Stacking Properly - Frame Bent. The RHT frame is bent or twisted and cannot be operated in either direction, or the roof shells are not stacking properly. The hydraulic roof cylinders operate out of sequence causing the frame to twist.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 54 04 12
Also written: SI B54 04 12, B540412, 54 04 12, SIB-54-04-12, SI B540412
NHTSA ID10150112
Document IDs filed540412
TypeService bulletin
Date
Models328, 328i, 335, 335i, 335IS, M3
Model years2007–2013
ChassisE90, E92, E93, F30, F31, F34
EnginesN20, N52, N54, N55, S65
Component (NHTSA)Structure

Model, year and engine coverage comes from NHTSA's records. Not every car in this range is affected; the official document lists the exact production dates and conditions.

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Before you pay, check the VIN for recalls. Some failures are covered by a safety recall or a BMW warranty extension.

Source: NHTSA Manufacturer Communications (public data). BimmerBench is not affiliated with BMW or NHTSA. The title and description above are our own plain-English summary; the full bulletin is BMW's document, linked above.

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