Home › Service bulletins › SIB 34 06 20
SIB 34 06 20: DSC unit noise over speed bumps
DSC unit noise over speed bumps on BMW G20/G21/F30/F34 models (2019–2021); BMW released a software update.
BMW service bulletin · NHTSA ID 10178997 · Jul 2020 · also written SI B34 06 20, B340620
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.
NOISE FROM DYNAMIC STABILITY CTRL(DSC)UNIT WHEN DRIVING RAPIDLY OVER SPEED BUMP: When driving rapidly over a speed bump, the following issues may arise: 1. DSC pump noise 2. Power output delayed for 1-2 seconds DSC software application.
Details
| Bulletin number | SIB 34 06 20 Also written: SI B34 06 20, B340620, 34 06 20, SIB-34-06-20, SI B340620 |
|---|---|
| NHTSA ID | 10178997 |
| Document IDs filed | B340620 |
| Type | Service bulletin |
| Date | |
| Models | 330e, 330i, M340i |
| Model years | 2019–2021 |
| Chassis | G20, G21, F30, F34 |
| Engines | B46/B48, B58 |
| Component (NHTSA) | Electrical System Electronic Stability Control › Automatic (Asc) |
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
Related bulletins
- SIB 01 05 20 EGR cooler warranty extension EGR cooler warranty extension on B46/B48/B47/B58/N20/N47/N55/N57/N63 engines (2014–2018); BMW extended the warranty on this part for eligible cars. Warranty extension · Aug 2025
- SIB 01 16 24 Telematics unit warranty extension Telematics unit warranty extension on BMW G11/G12/G20/G30 and other models (2018–2020); BMW extended the warranty on this part for eligible cars. Warranty extension · Jan 2025
- SIB 12 05 25 Electrical system corrosion Electrical system corrosion on BMW G05/G07/G20 models (2024); BMW repairs affected cars free under a service campaign. Service campaign · May 2025
- NHTSA 10216792 Tec25 Wishbone Return Tec25 Wishbone Return on BMW G11/G12/E60/E89 and other models (2016); BMW explains the cause and the approved repair. Service bulletin · Mar 2016
- SIB 84 02 26 Telematics unit failure Telematics unit failure on BMW G01/G02/G05/G06 and other models (2020); BMW repairs affected cars free under a service campaign. Service campaign · Jul 2026
- SIB 72 02 25 Seat warranty extension Seat warranty extension on BMW G01/G02/G20/F30 and other models (2019–2021); BMW extended the warranty on this part for eligible cars. Warranty extension · Jun 2025
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.