2020 BMW Z4 Electrical system Problems
- Complaints
- 2about this part
- Share
- 40%of 5 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the electrical system of the 2020 BMW Z4, 40% of the 5 complaints for this model year. 1 recall campaign on record is filed under a similar system.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The engine starter failed on my 2020 BMW Z4 M40i. The vehicle experienced starting failures and the repair shop diagnosed a faulty/shorted engine starter assembly. The symptoms and component failure match the exact defect description of active safety recalls NHTSA 24V-576 and 25V-636 (Starter Motor Fire Risk due to electrical short circuit/overheating). However, when checking my specific 17-digit VIN, the manufacturer has excluded my vehicle from the recall population. …”
NHTSA complaint #11751896, filed 2026-07“Engine starter safety recall came out in September 2025, with no remedy or parts existing for fixing it. 5 months later, and no timeframe is provided for a remedy. This is a major fire risk given the amount of rain now that could corrode the starter and lead to a fire.”
NHTSA complaint #11719116, filed 2026-02Related recalls
- 25V636000Sep 23, 2025BMW of North America, LLC (BMW) is recalling certain 2019-2021 BMW 330i, 2019-2022 BMW Z4, 2020-2022 BMW 530i, X3, X4, Toyota Supra, 2021-2022 BMW 430i, 430i…Covers: BMW Z4 2019–2022, 330I 2019–2021, Toyota Supra 2020–2022 +5 more
Related service bulletins
- 10250893Feb 28, 2024SITUATION BMW AG is conducting a Voluntary Emissions Recall (effective April 23, 2021) on a certain Model Year 2020 - 2021 BMW vehicles that were produced between August 13, 2019…
- 10250374Feb 16, 2024An interference noise (groaning noise) can be heard from within the heating and air-conditioning unit in thecenter of the instrument panel. The groaning noise always occurs when…
- 10249437Jan 16, 2024The basic conditions for initializing the power windows are not met.
- 10249027Jan 11, 2024The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery…
- 10249032Jan 5, 2024The Central Information Display goes black intermittently due to resets of the Head Unit (HU-H3). FaultB7F8F9 ÃÂâÃÂÃÂÃÂàÃÂâÃÂÃÂÃÂÃÂHU-H…
- 10239611Jun 1, 2023Headlight check control (CC) message 128 "High beam headlight failure" is displayed. The following fault codes are stored during a vehicle test: 80419A - Left high-beam…
- 10239608Jun 1, 2023In the event of an accident, the two-battery Dual Storage System (DSS) is disconnected from the electrical system via an internal relay.
- 10239599Jun 1, 2023With the introduction of the BMW Remote Software Upgrade, all Service Pack 18 vehicles and partial Service Pack 15 vehicles may receive new functionality or modifications in…
- 10238093May 1, 2023BMW AG has issued a Delivery Stop (effective February 9, 2023) on certain Model Year 2022 - 2023 BMW vehicles that were produced between June 29, 2022 and February 16, 2023. This…
- 10236236Apr 1, 2023Issues with the various functions of the camera-based driver assistance systems (KAFAS system) can possibly lead to following customer complaints: KAFAS camera system deactivates…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2020 | 2 | 40% |
| 2019 | 1 | 20% |
| 2015 | 2 | 40% |
| 2014 | 3 | 43% |
| 2013 | 3 | 43% |
| 2012 | 2 | 40% |
| 2011 | 3 | 7% |
| 2010 | 1 | 10% |
| 2009 | 2 | 9% |
| 2008 | 2 | 11% |
| 2007 | 4 | 12% |
| 2006 | 13 | 14% |
| 2005 | 6 | 3% |
| 2004 | 14 | 3% |
| 2003 | 13 | 3% |
Other parts of the 2020 BMW Z4
2 complaintsEngine
2 complaintsSteering
2 complaintsOther or unknown
1 complaintsBody and structure
1 complaintsSuspension
1 complaints
← All problems reported for the 2020 BMW Z4
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology