2006 Bmw Z4: Reliability Data

Source: NHTSA — 107 complaints
107
Total Complaints
54,901mi
Median Mileage
STEERING
Top Issue
1
Crash Reports

When Do Complaints Happen?

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

37,124 25th Percentile
54,901 Median Mileage
65,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

STEERING
55
ELECTRICAL SYSTEM
13
AIR BAGS
13
ENGINE
5
EXTERIOR LIGHTING
4
SEATS
3
ENGINE AND ENGINE COOLING
3
VEHICLE SPEED CONTROL
2
UNKNOWN OR OTHER
2
ENGINE AND ENGINE COOLING:ENGINE
1

Severity Assessment

1
Crashes
3
Fires
1
Injuries
1
Deaths

Sample Complaint Reports

"HI, MY DESCRIPTION IS TOO LONG , I WILL EMAIL IT SEPARATELY TO NHTSA. *TR THE CONSUMER STATED THE VEHICLE HAD RUN FLAT TIRES AND THE VEHICLE ALSO HAD A TIRE PRESSURE MONITORING SYSTEM. WHILE DRIVING DOWN THE HIGHWAY, ONE OF THE TIRES SUDDENLY COLLAPSED AND SHREDDED. BECAUSE THE TIRES WERE RUN FLAT..."
"THIS CONCERNS MANY BMW Z4 EPS (ELECTRONIC POWER STEERING) WHEN THE CAR SET IN HOT WEATHER AND THEN I GO TO DRIVE IT, THE STEERING BECOMES VERY TIGHT AND DOES NOT ALWAYS RETURN TO CENTER. ALSO THERE IS A LAG IN STEERING TURNING OR NULL SPOT OF ALMOST NO RESPONSE FOR UP TO ONE INCH OF STEERING WHEEL ..."
"BMW 2006 Z-4 3.0 SI POWER STEERING UNIT FAILED TO OPERATE AT VEHICLE START UP. THE CAR WAS TAKEN TO THE LOCAL BMW DEALER (BMW LONG BEACH CA) WHERE THE FAILURE OF THE POWER STEERING UNIT WAS CONFIRMED BY THE MECHANIC. AFTER INSPECTION OF THE UNIT BY THE DEALER THE UNIT BEGAN TO OPERATE WITH NO FURTHE..."

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