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SIB 52 05 16: Heated seat temperatures incorrect

Heated seat temperatures incorrect on BMW F48 models (2016–2017); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10147026 · Aug 2016 · also written SI B52 05 16, B520516

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.

HEATED SEAT TEMPERATURES INCORRECT. Seat heater output is incorrect - too high or too low. Target temperatures: Level 1 = 95F after 20 min Level 2 = 99.5F after 20 min Level 3 = 104F after 20 min Insufficient encoding of seat heating control unit.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 52 05 16
Also written: SI B52 05 16, B520516, 52 05 16, SIB-52-05-16, SI B520516
NHTSA ID10147026
Document IDs filedB520516
TypeService bulletin
Date
ModelsX1, X1 SAV
Model years2016–2017
ChassisF48
EnginesB46/B48
Component (NHTSA)Seats › Front Assembly › Seat Heater/Cooler

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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All B46/B48 bulletins

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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.