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SIB 51 23 22: Radiator service information

Radiator service information on BMW G07/G11/G12/F48 and other models (2019–2023); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10230730 · Dec 2022 · also written SI B51 23 22, B512322

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.

This results in inadequate climate control in the vehicle interior.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 51 23 22
Also written: SI B51 23 22, B512322, 51 23 22, SIB-51-23-22, SI B512322
NHTSA ID10230730
Document IDs filedB512322
TypeService bulletin
Date
ModelsALPINA XB7, B7 ALPINA, X1, X7
Model years2019–2023
ChassisG07, G11, G12, F48, U11
EnginesB46/B48, B58, N63
Component (NHTSA)Visibility › Defroster/Defogger/Hvac System

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

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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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