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Body and structurePart report

2004 BMW Z4 Body and structure Problems

Complaints
3about this part
Share
1%of 411 total for the year
Median mileage
57,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the body and structure of the 2004 BMW Z4, 1% of the 411 complaints for this model year. Where a mileage was given, the median is 57,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I left my Bmw in the sun all day and now my locks wont work. Many resources link this problem to the gm5 which controls the lighting and locks. Bad locks can be a safety and security issue on parked cars but also for moving cars as children may open vehicle doors in traffic.”

NHTSA complaint #10743567, filed 2015-07, 56,000 miles

“My Bmw 2004 Z4 door on the passenger side would not open. The inside and outside handles would not open the door. Shortly afterwards the drivers side door handle began to fail intermittently. I was locked inside my vehicle without the ability to get out.”

NHTSA complaint #10548573, filed 2013-10, 64,000 miles

“In the fall, 2010, my Bmw 2004 Z4 stopped automatically opening and closing the convertible top. According to the mechanic there is a known problem with the motor associated with it. The main motor gets water trapped inside the plastic housing whcih causes the motor to fail. I need to replace the motor, as many other owners have. Bmw knows of this problem and should do a recall/replacement with it's updated plastice housing of the motor. It will cost approximately $3000 to fix it. It is a known defect.”

NHTSA complaint #10389816, filed 2011-03, 57,000 miles

Related service bulletins

Body and structure: other model years

YearComplaintsShare of year
2020120%
2019120%
2013229%
200713%
200611%
200511%
200431%
200382%

Other parts of the 2004 BMW Z4

Steering
378 complaints
Air bags
18 complaints
Electrical system
14 complaints
Exterior lighting
6 complaints
Visibility (wipers, defrost, mirrors)
4 complaints
Brakes
3 complaints
Electronic stability control
3 complaints
Transmission and drivetrain
3 complaints
Equipment
1 complaints
Other or unknown
1 complaints
Seats
1 complaints
Suspension
1 complaints

← All problems reported for the 2004 BMW Z4

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology