There are 1 stored owner reports matching the visibility & wipers leading-label group for the 2010 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 1 of 1 matching reports.
Open the full vehicle complaint log (all categories)DURING A COLD, DRIVING RAIN STORM, WITH DRIVER & 1 PASSENGER, STARTED TO DRIVE. (VERY 1ST DRIVE IN THIS CAR WITH COLD WEATHER) WHAT A SURPRISE: WINDSHIELD IMMEDIATELY FOGGED UP. TURNED ON DEFOGGER, WINDSHIELD THEN FOGGED UP 100% AS WELL AS ALL OTHER WINDOWS - AS VISIBILITY DISAPPEARED, I STOPPED THE CAR & OPENED THE WINDOWS WITH THE BLOWER ON. NO HEAT COULD BE USED. THIS PROCESS WAS REPEATED OVER THE NEXT 1 TO 1-1/2 HOURS IN ORDER TO CONTINUE DRIVING. ISSUE WAS REPORTED TO BMW MANY TIMES OVER. I HAD TO LEARN THAT DESPITE COLD AMBIENT TEMPERATURES W-W/O RAIN, SNOW, ETC. - THE A/C MUST BE TURNED ON IN ORDER TO NOT FOG THE WINDOWS. BMW: THERE'S NOTHING TO FIX, THAT'S THE WAY IT IS. THE AMBIENT AIR IS DIRECTED THROUGH A PORTION OF THE ENGINE COMPARTMENT, THIS HEATS UP THE AIR. BMW STATED THAT I MAY VOID THE WARRANTY IF I MODIFY THE SYSTEM TO CORRECT THIS PROBLEM. THIS HAS CONTINUED TO OCCUR. ON A DRIVE ON CA'S COAST HIGHWAY, WITH TEMPS IN THE LOW 50'S - ONE MUST STILL RUN THE A/C & NO HEAT. BMW ASKED: WHAT DO YOU HAVE AGAINST RUNNING THE A/C ALL THE TIME? IN ADDITION TO IMPAIRED VISIBILITY - THIS RESULTS IN CONSTANT, VERY LOW MPG WITH THE A/C ALWAYS ON. WHEN BMW PROVIDED MPG'S TO FED. AGENCIES, I BELIEVE THAT BMW'S A/C'S WERE NOT ON & THESE CARS DEMAND PREMIUM FUEL. I SPOKE WITH A NATIONALLY KNOWN, RESPECTED TESTER/ADVISERS OF MANY VEHICLES - IT WAS CONFIRMED TO ME THAT THE MPG TESTS ARE CONDUCTED WITHOUT THE A/C'S BEING TURNED ON. *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.