Infiniti FX35 vs BMW Z4

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	Infiniti FX35	BMW Z4
Complaints on file	578	1,444
Model years covered	2002–2013	2002–2022
Worst model year	2005	2003
Best model year	2010	2008
Crashes reported	31	34
Fires reported	5	7
Injuries reported	20	9
Deaths reported	2	2
Most complained-about part	Airbags	Steering
Share of complaints involving harm	10%	3.6%

Infiniti FX35 by year

3 84 148 122 55 48 42 23 17 15 20 1

02 03 04 05 06 07 08 09 10 11 12 13

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

What breaks

Airbags 108 18.7%

Other & Unspecified 64 11.1%

Electrical System 62 10.7%

Body & Structure 59 10.2%

Doors, Latches & Locks 55 9.5%

Fuel & Propulsion 36 6.2%

Engine & Cooling 34 5.9%

Brakes 26 4.5%

BMW Z4 by year

6 460 443 204 107 42 27 26 10 57 7 12 10 7 5 7 11 1 2

02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 19 20 21 22

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

What breaks

Steering 993 68.8%

Airbags 101 7.0%

Engine & Cooling 78 5.4%

Electrical System 74 5.1%

Wheels 25 1.7%

Brakes 21 1.5%

Transmission & Drivetrain 18 1.2%

Body & Structure 18 1.2%