SPORADIC REDUCTION OF STEERING ASSISTANCE: This Service Information Bulletin (Revision 1) replaces SI B32 11 19 dated October 2019. The driver notices a reduction of steering assistance sporadically while in certain driving situations. Steering control is never lost when the reduction of assistance occurs. The fault may self-correct for no obvious reason or be eliminated with a terminal change/key cycle. There is no Check Control (CC) message when the issue occurs. Unfavorable software in the Electric Power Steering (EPS).
full bulletin at NHTSA ↗2017 BMW i3 powertrain problems
severe Owners of the 2017 BMW i3 have filed 5 NHTSA complaints about the powertrain at roughly $2,500 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See powertrain across all vehicles →
Complaints
5
Recalls
0
Avg fix
$2,500
| Model year | powertrain complaints |
|---|---|
| 2014 i3 | 9 |
| 2015 i3 | 4 |
| 2016 i3 | 3 |
| 2017 i3 (this page) | 5 |
1crash
1injury
When does it fail?
Of the 5 powertrain complaints filed for the 2017 BMW i3, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA powertrain complaint has been filed on this vehicle in over 6 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
TICKING NOISE WHILE CORNERING WITHOUT THE BRAKES APPLIED: This Service Information Bulletin (Revision 3) replaces SI B34 05 17 dated September 2017. Ticking noise coming from front wheel while cornering without brakes applied noticeable at low speeds. The vehicle must be moving. See attached video V34 01 20 Note: For a similar noise heard when parking with the brakes applied refer to SIB 31 01 12. Microscopic movement of the contact interface between the inner brake disc and the wheel bearing flange on vehicles equipped with lightweight brake discs.
full bulletin at NHTSA ↗The electrical machine electronics (EME) Printed Circuit Board (PCB) may not have been produced to specifications. In the event that the EME detects this condition it will shut down high-voltage electrical power. A shut down of high-voltage electrical power would result in a loss of propulsion increasing the risk of a crash. However the 12-volt electrical power remains functional to support power steering and braking.
full bulletin at NHTSA ↗SERVICE ACTION: KLE - CONVENIENCE CHARGING ELECTRONICS I01 REX: OBD relevant diagnoses of the KLE (convenience charging electronics) cannot be processed correctly because of a data transmission error in the EME (electrical machine electronics).
full bulletin at NHTSA ↗LACK OF POWER OR DRIVING READINESS CANNOT BE ESTABLISHED: Drive parameters (speed and torque) may be restricted.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 2 most recent
A day after the recommended service. While driving on I 95 with range extender, noticed the drive train malfunction alert with rapid deceleration needing to pull to the right shoulder quickly. BMW assist took the car to the nearest BMW dealer, who said it was lack of electric charge, plugged the car in charger and gave it to me to head back home town. Few days later the problem again recurred.…
The car turned off while driving and presented a "drivetrain" error message. The car lost power but I was able to safely steer to the side of the road. Car was taken to BMW dealer and a diagnostic test was performed. Was informed that the EME (Electric Motor Electronics) Module was bad and would need to be replaced. The car is 5 years old and has 31,700 miles and has never been in an accident.…
Had powertrain trouble with your 2017 BMW i3?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2017 BMW i3?
It's a meaningful issue. 5 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $2,500.
At what mileage does the powertrain typically fail?
Based on the 5 complaints filed, powertrain issues most often appear around 27,860 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2017/BMW/i3.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.