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SIB 34 03 20: Axle warning message
Axle warning message on B46/B48/B58 engines (2019–2021); BMW gives an inspection and repair procedure.
BMW service bulletin · NHTSA ID 10177623 · Jun 2020 · also written SI B34 03 20, B340320
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.
PREMATURE WEAR OF THE REAR AXLE BRAKE PADS WITH STANDARD BRAKES: The CBS data and Check Control (CC) message shows the rear axle brake pads are worn, and the vehicle has less than 15,500 miles.
Details
| Bulletin number | SIB 34 03 20 Also written: SI B34 03 20, B340320, 34 03 20, SIB-34-03-20, SI B340320 |
|---|---|
| NHTSA ID | 10177623 |
| Document IDs filed | B340320 |
| Type | Service bulletin |
| Date | |
| Models | 330e, 330i, M340i, Z4 |
| Model years | 2019–2021 |
| Chassis | G20, G21, G29, F30, F34 |
| Engines | B46/B48, B58 |
| Component (NHTSA) | Engine And Engine Cooling Hydraulic Service Brakes |
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.
More for these cars
F30 repair costs G20 repair costs All B46/B48 bulletins All B58 bulletins
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Before you pay: check your VIN for recalls
Some failures are covered by a safety recall or a warranty extension. Our free recall check lists NHTSA recalls for your car's model and year.
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.