There are 2 stored owner reports matching the body & structure leading-label group for the 2004 BMW Z4 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)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. *TR
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. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.