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SIB 17 01 24: Battery leak

Battery leak on Electric engines (2022–2025); BMW gives an inspection and repair procedure.

BMW service bulletin · NHTSA ID 11029046 · Feb 2026 · also written SI B17 01 24, B170124

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.

There is coolant leaking from under the car Low heater output Possible Check Control message “Drive, you can continue driving” (ID49) Possible fault codes stored in these BEV vehicles: 224163 – Electric auxiliary heater for the high-voltage battery unit: Undervoltage or internal communication fault 8049AA - Coolant level sensor, expansion tank: Coolant level low or short circui

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 17 01 24
Also written: SI B17 01 24, B170124, 17 01 24, SIB-17-01-24, SI B170124
NHTSA ID10253344, 11014035, 11014422, 11016419, 11029046 (revisions)
Document IDs filedB170124
TypeService bulletin
Date (first filed Apr 2024)
ModelsI4, I5, I5 EDRIVE40, I7, IX
Model years2022–2025
ChassisG26, G60, G70, I20
EnginesElectric
Component (NHTSA)Engine
Engine And Engine Cooling

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.

Related bulletins

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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