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SIB 51 33 15: Roof and pillars leak

Roof and pillars leak on BMW F22/F23 models (2014–2016); BMW gives an inspection and repair procedure.

BMW service bulletin · NHTSA ID 10147775 · Oct 2015 · also written SI B51 33 15, B513315

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.

The left A-pillar/bulkhead joint may be leaking. AFFECTED VEHICLES The joint of the bulkhead plate and A-pillar reinforcement is supposed to be sealed with an adhesive strip and a PVC seam.The PVC seam was not applied correctly in places and can cause leaks.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 51 33 15
Also written: SI B51 33 15, B513315, 51 33 15, SIB-51-33-15, SI B513315
NHTSA ID10147775
Document IDs filedB513315
TypeService bulletin
Date
Models228i, M235i
Model years2014–2016
ChassisF22, F23
EnginesN20, N55
Component (NHTSA)Structure › Body › Roof And Pillars

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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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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