2021 BMW i3s

The 2021 BMW i3s is a distinctive and quirky all-electric subcompact car, offering a unique blend of futuristic styling, agile handling, and eco-consciousness. The “s” variant boosts the standard i3’s power output to 181 horsepower and 199 lb-ft of torque, offering slightly quicker acceleration and sportier driving dynamics. The i3s is solely available with a single-speed direct-drive transmission. Owners often praise its nimble handling, instant torque, and distinctive interior design. Criticisms often revolve around its limited range compared to newer EVs, polarizing exterior styling, and the firm ride, particularly on the “s” model. The following outlines common issues encountered by owners of the 2021 BMW i3s.

Electric Motor

• Drive Unit Malfunction
  • Description/Symptoms: Complete loss of drive power, warning lights on the dashboard indicating an issue with the electric motor. The car may become immobile.
  • Solution: Replacement of the electric motor drive unit. This is a complex repair requiring specialized equipment and expertise.
  • Estimated Cost to Fix: $8,000 - $12,000+
  • Recalls: None Found

Battery

• Reduced Range/Battery Capacity Degradation
  • Description/Symptoms: Noticeable decrease in the vehicle’s range over time, even under similar driving conditions. The battery’s state of charge may drop faster than expected.
  • Solution: In some cases, a software update can recalibrate the battery management system. In more severe cases, replacement of individual battery modules or the entire battery pack may be necessary.
  • Estimated Cost to Fix: $2,000 - $15,000+ (depending on the extent of the damage and repair needed)
  • Recalls: None Found

Electrical System

• 12V Battery Issues
  • Description/Symptoms: The 12V battery, used for auxiliary functions like starting the car’s systems and powering accessories, can fail prematurely. Symptoms include difficulty starting, error messages on the display, and issues with the car’s electronics.
  • Solution: Replacement of the 12V battery.
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Charging System Problems
  • Description/Symptoms: Inability to charge the vehicle, slow charging speeds, or error messages related to the charging system. This could stem from the onboard charger, charging port, or associated wiring.
  • Solution: Diagnosis to identify the faulty component (onboard charger, charging port, wiring). Repair or replacement of the affected part.
  • Estimated Cost to Fix: $500 - $2,000+
  • Recalls: None Found

Suspension

• Damper Failure
  • Description/Symptoms: Premature wear and failure of the rear dampers and causing excessive bounce and reduced control. Can cause excessive tire wear.
  • Solution: Replacement of the faulty dampers.
  • Estimated Cost to Fix: $500 - $1000+
  • Recalls: None Found

Exterior

• Rear Hatch Issues
  • Description/Symptoms: The rear hatch can be difficult to open or close, sometimes requiring excessive force. The latch mechanism may become misaligned or faulty.
  • Solution: Adjustment or replacement of the rear hatch latch mechanism.
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

Interior

• iDrive System Freezing/Malfunctioning
  • Description/Symptoms: The iDrive infotainment system may freeze, become unresponsive, or exhibit glitches. This can affect navigation, audio, and other vehicle functions.
  • Solution: Software update or, in more severe cases, replacement of the iDrive control unit.
  • Estimated Cost to Fix: $100 - $1500+
  • Recalls: None Found

Summary

The 2021 BMW i3s generally experiences electrical issues, which can range from minor inconveniences to more serious problems affecting the vehicle’s drivability. Drive unit failure can be the most expensive, while 12V battery issues are far less costly. As an all-electric vehicle, the battery system can also degrade and cause capacity loss. While some electrical issues can be relatively inexpensive to resolve, more complex problems can lead to significant repair bills. Potential buyers should be aware of these common issues and consider having a pre-purchase inspection performed by a qualified mechanic specializing in electric vehicles.