2005 Bmw Z4: Reliability Data

Source: NHTSA — 204 complaints
204
Total Complaints
46,750mi
Median Mileage
STEERING
Top Issue
2
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

25,028 25th Percentile
46,750 Median Mileage
69,579 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

STEERING
170
AIR BAGS
9
ELECTRICAL SYSTEM
6
ENGINE
3
SUSPENSION
3
STEERING:COLUMN
2
STEERING:ELECTRIC POWER ASSIST SYSTEM
2
FUEL SYSTEM, GASOLINE
1
STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID
1
SEAT BELTS
1

Severity Assessment

2
Crashes
0
Fires
2
Injuries
0
Deaths

Sample Complaint Reports

"ON AUGUST 7, 2007 I TOOK MY CAR TO STERLING BMW IN NEWPORT BEACH, CA BECAUSE I NOTICED THE AIRBAG MALFUNCTION LIGHTS WERE ON ALONG WITH OTHER ELECTRICAL ISSUES. AFTER THEY HAD INSPECTED MY VEHICLE FOR THREE DAYS I WAS INFORMED THAT THE AIRBAG/ELECTRICAL PROBLEM WOULD NOT BE COVERED BY THE BMW FACTOR..."
"ON AUGUST 7, 2007 I TOOK MY CAR TO STERLING BMW IN NEWPORT BEACH, CA BECAUSE I NOTICED THE AIRBAG MALFUNCTION LIGHTS WERE ON ALONG WITH OTHER ELECTRICAL ISSUES. AFTER THEY HAD INSPECTED MY VEHICLE FOR THREE DAYS I WAS INFORMED THAT THE AIRBAG/ELECTRICAL PROBLEM WOULD NOT BE COVERED BY THE BMW FACTOR..."
"STICKY STEERING ON WARM DAYS OR COOLER DAYS WITH THE HEATER ON. I NEED TO USE MORE FORCE THAN USUAL TO MOVE STEERING WHEEL TO NEGOTIATE LANE CHANGES OR CURVES ON HIGHWAY. I NEED TO STEER THE CAR STRAIGHT AFTER TURNING OFF CENTER. THE PROBLEM IS INTERMITTENT BUT STILL UNNERVING. *TR"

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28