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SIB 52 17 23: Seat failure

Seat failure on BMW G14/G15/G16/G20 and other models (2013–2024); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10249023 · Jan 2024 · also written SI B52 17 23, B521723

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.

Customer states one of the front seats is inoperative. The seat heater and power supply are inoperative. During the vehicle test, the seat module does not respond. The power supply fuse for the seat module isfound to have blown.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 52 17 23
Also written: SI B52 17 23, B521723, 52 17 23, SIB-52-17-23, SI B521723
NHTSA ID10247576, 10249023 (revisions)
Document IDs filedB521723
TypeService bulletin
Date (first filed Dec 2023)
Models3 Series, 330e, 330i, 340i, 4 Series, 430i, 440i, 840i, M4, M440i, X1, X1 SAV
Model years2013–2024
ChassisG14, G15, G16, G20, G21, G22, G23, G26, G82, G83, F30, F31, F32, F33, F34, F36, F48, E84, U11
EnginesB46/B48, B58, N20, N52, N55, S58
Component (NHTSA)Electrical System
Seats

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.