RoadVitals

2014 BMW Z4 Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
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Latest Aug 19, 2025
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
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Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
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What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2014 BMW Z4, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

  • Electrical330.0%
  • Engine220.0%
  • Brakes110.0%
  • Airbags110.0%
  • Fuel system110.0%
  • Other / unspecified110.0%
  • Tires & wheels110.0%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Electrical

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.

3
reports

From owner reports, verbatim

The contact owns a 2014 BMW Z4. The contact stated that rodents had chewed through some electrical wiring in the vehicle. The air bag warning light was illuminated. The contact was unable to monitor the oil levels due to the damaged electrical wiring. The vehicle was taken to the local dealer on several occasions, where it was determined that the electrical wiring needed to be replaced. The vehicle was repaired, but the failure reoccurred. The contact was informed about other methods to deter the varmints from chewing on the electrical wiring. The contact called an independent mechanic, who stated that the failure had occurred on several types of vehicles. The manufacturer was contacted but provided no additional assistance. The failure mileage was approximately 111,544.

NHTSA ID 11681645 · filed Aug 19, 2025

The contact owns a 2014 BMW Z4. The contact received notification of NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA ID 11654902 · filed Apr 16, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

2
reports

From owner reports, verbatim

The contact owns a 2014 BMW Z4. The contact received notification of NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA ID 11654902 · filed Apr 16, 2025

The contact owns a 2014 BMW Z4. The contact received notification of NHTSA Campaign Number: 24V608000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue. The manufacturer was made aware of the issue. The contact stated while driving 30 MPH, there was smoke entering the cabin of the vehicle through the A/C vents. There were no warning lights illuminated. The local dealer was contacted to schedule a diagnostic test; however, the appointment was not scheduled because parts for the recall repair were not yet available. The failure mileage was approximately 26,000. VIN tool confirms parts not available.

NHTSA ID 11643873 · filed Feb 20, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Brakes

Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.

1
report

From owner reports, verbatim

WHILE PARKING IN PARKING LOT, DEPRESSED THE BRAKES AND THE CAR ACCELERATED. CONTINUED TO BRAKE AND THE CAR KEPT ACCELERATING UNTIL I HIT A POLE.

NHTSA ID 11014613 · filed Aug 11, 2017

Too few reports in this category for a page of its own — they appear in the full complaint list.

Airbags

Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.

1
report

From owner reports, verbatim

The contact owns a 2014 BMW Z4. The contact stated that rodents had chewed through some electrical wiring in the vehicle. The air bag warning light was illuminated. The contact was unable to monitor the oil levels due to the damaged electrical wiring. The vehicle was taken to the local dealer on several occasions, where it was determined that the electrical wiring needed to be replaced. The vehicle was repaired, but the failure reoccurred. The contact was informed about other methods to deter the varmints from chewing on the electrical wiring. The contact called an independent mechanic, who stated that the failure had occurred on several types of vehicles. The manufacturer was contacted but provided no additional assistance. The failure mileage was approximately 111,544.

NHTSA ID 11681645 · filed Aug 19, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Fuel system

Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.

1
report

From owner reports, verbatim

TWO IN TANK FUEL PUMP REPLACED--FIRST ONE AT 11,225 MILES-- SECOND FUEL PUMP REPLACED AT 23,385 MILES---FUEL PUMP IS MAKING NOISE & HARD TO START--ENGINE WILL QUIT IN TOWN OR HIGHWAY. BMW SAYS THERE IS NO RECALL ON FUEL PUMP. IT IS NOT SAFE TO DRIVE THIS Z4 BECAUSE OF THE ENGINE QUITING !

NHTSA ID 11063846 · filed Jan 20, 2018

Too few reports in this category for a page of its own — they appear in the full complaint list.

Other / unspecified

Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.

1
report

From owner reports, verbatim

THE TIRE ON MY Z4 RUB THE INSIDE WHEEL WELL CAUSING THE TIRE TO BLOW OUT. WHEN I TOOK THE WHEEL TO BE REPAIRED, THE MANAGER OF THE TIRE COMPANY SAID THIS WAS A FACTORY DEFECT THAT HE IS SEEING ON MOST OF THE Z4'S. HE SAID IT WILL CONTINUE TO HAPPEN AS THE CAMBER CAN'T BE ADJUSTED OUT FAR ENOUGH TO STOP THIS RUBBING. I CONTACT BMW BUT THEY SAID IT WAS MY FAULT; THAT I PROBABLY HIT TOO MANY POT HOLES, I DROVE TOO FAST, I SHOULD HAVE KNOWN THIS WOULD HAPPEN SINCE IT IS A SPORTS CAR. THEY ALSO SAID I SHOULD HAVE HAD THE CAR REALIGNED EVERY YEAR. NO WHERE IN MY MANUAL DOES IT TELL ME THIS. IT COST ME OVER THOUSAND DOLLARS TO GET MY TIRES FIXED. THIS IS A MAJOR SAFETY ISSUE THAT NEEDS TO BE ADDRESSED BUT NO ONE WILL LISTEN NOR DO A THING ABOUT THIS. ALL I GOT FROM THE LADY IN SPARTENSBURG, THE HOME OFFICE, WAS I'M SORRY, YOU COULD SELL YOUR CAR! MY CAR ONLY HAS THIRY THOUSAND MILES ON IT, NOW I WILL HAVE TO FACE THIS AGAIN AND AGAIN. WHY WOULD ANY MANUFACTURER PRODUCE A VEHICLE THAT THE TIRES ARE TOO BIG TO FIT PROPERLY INSIDE THE WHEEL WELLS? SAFETY IS MY CONCERN, NOW AND IN THE FUTURE. I HAVE IT IN WRITING WHERE THE MANAGER SAID IT WAS GOING TO HAPPEN AGAIN.

NHTSA ID 10743569 · filed Jul 27, 2015

Too few reports in this category for a page of its own — they appear in the full complaint list.

Tires & wheels

Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.

1
report

From owner reports, verbatim

TL* THE CONTACT OWNS A 2014 BMW Z4 EQUIPPED WITH UNIROYAL SENTRY TIRES, SIZE: 225/45R17 (NA). WHILE PULLING OUT OF THE DRIVEWAY, THE CONTACT'S SPOUSE NOTICED A NAIL LODGED IN THE REAR PASSENGER TIRE. THE TIRE WAS TAKEN TO A LOCAL MECHANIC WHO STATED THAT THE TIRE WAS TORN FROM THE INSIDE AND THE NAIL LODGED IN THE TIRE WAS KEEPING THE TIRE TOGETHER. THE MECHANIC STATED THAT THE FAILURE WAS DUE TO A MANUFACTURER DEFECT. THE MANUFACTURER WAS NOT NOTIFIED. THE TIRE WAS REPLACED. THE DOT NUMBER, VEHICLE MILEAGE, AND TIRE MILEAGE WERE NOT AVAILABLE.

NHTSA ID 11104276 · filed Jun 27, 2018

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .