FaultScore

BMW 335D vs Hyundai Ioniq 6

Both cars' complete complaint records, side by side.

Read the totals carefully. NHTSA publishes no sales figures, so the car that sold more collects more complaints regardless of quality. The rows worth weighing are the proportions — the share of complaints that involved harm, and which part dominates.

Measure BMW 335D Hyundai Ioniq 6
Complaints on file 75 185
Model years covered 2009–2011 2023–2025
Worst model year 2023
Best model year 2025
Crashes reported 0 7
Fires reported 9 0
Injuries reported 1 2
Deaths reported 0 0
Most complained-about part Electrical System Electrical System
Share of complaints involving harm 13.3% 4.9%

BMW 335D by year

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Electrical System 19 25.3%
Airbags 13 17.3%
Engine & Cooling 11 14.7%
Seats 6 8.0%
Steering 5 6.7%
Fuel & Propulsion 4 5.3%
Seat Belts 4 5.3%
Transmission & Drivetrain 3 4.0%

Hyundai Ioniq 6 by year

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Transmission & Drivetrain 18 9.7%
Driver Assist & Collision Avoidance 16 8.6%
Fuel & Propulsion 14 7.6%
Acceleration & Cruise Control 11 5.9%
Engine & Cooling 8 4.3%
Brakes 4 2.2%