Showing the 2014 Z4 e28i. NHTSA's VIN data shows it with a 2.0 L engine, but that may not be every version of it, so the numbers below cover every version of this model year. Every version
Owner complaints, recalls, fuel economy and safety ratings from public NHTSA and EPA data, updated Oct 17, 2026.
Fuel economy
19–26 mpgcombined; city 17–22, highway 23–33; every version of this model year
Five years of fuel
$15,480–$21,180U.S. average; Ohio $14,580–$19,960 at local prices; every version of this model year; fuel only, not other costs of owning it; 15,000 miles a year, at EIA fuel prices for the week of Oct 12, 2026
NHTSA overall safety rating
Not ratedNHTSA has no overall rating for this year
NHTSA's VIN data lists these trims for the 2014 Z4. A trim's engine and numbers are shown as its own only where EPA names versions after the trim and no other version could be it; "seen with" means a source shows that engine on the trim, not that it was the only one. Recalls and complaints cover the whole model year: whether a recall applies to a car depends on its VIN, on NHTSA's recall lookup.
Owners have filed 7 complaints with NHTSA about the 2014 Z4. These are unverified owner reports, counted by the part of the car they name; one complaint can name several parts. Counts aren't adjusted for how many were sold, so they don't show how reliable a car is.
Complaints by part of the car
Part
Complaints
Crashes
Fires
Injuries
Electrical system
3
0
0
0
Engine and engine cooling
2
0
0
0
Air bags
1
0
0
0
Fuel/propulsion system
1
0
0
0
Service brakes
1
1
0
0
Tires
1
0
0
0
Wheels
1
0
0
0
Complaints by model year
Newer years have had less time to collect complaints, and counts aren't adjusted for sales, so a shorter bar doesn't mean a more reliable year.
NHTSA lists 3 recall campaigns for the 2014 Z4 over its history. Campaigns are matched by model and year, so each one may apply to a given car, and its repair may already be done: check a VIN on NHTSA's recall lookup for the open recalls on that exact car.
Electrical system: wiring; Engine and engine cooling: cooling system
BMW of North America, LLC. (BMW) is recalling certain 2012-2015 X1 sDrive28i, X1 xDrive28i, 2012-2016 Z4 sDrive28i, 528i, 528i xDrive, 328i, 328xi, 2016-2018 X5 xdrive 40e, 2014-2016 228i, 228xi, 428i, 428i xDrive, 328xi Gran Turismo, 2013-2017 X3 sDrive28i, X3 xDrive28i, 2015-2018 X4 xDrive28i, 2015-2016 428xi vehicles. An improperly sealed electrical connector on the water pump may be exposed to water and short circuit.
Risk: An electrical short increases the risk of a fire.
Remedy: Dealers will inspect and replace the water pump and plug connector as necessary, and install a protective shield, free of charge. Owner notification letters were mailed on March 28, 2025. Owners may contact BMW customer service at 1-800-525-7417.
BMW of North America LLC (BMW) is recalling certain model year 2014 BMW 328i xDrive Sports Wagon, 2012-2014 BMW 320i Sedan, 328i Sedan, 320i xDrive Sedan, 328i xDrive Sedan, 2012-2013 BMW 528i Sedan, 528i xDrive Sedan, 2013-2014 BMW X1 sDrive28i, X1 xDrive28i Sports Activity Vehicle, 2013-2014 BMW X3 xDrive28i Sports Activity Vehicle, 2012-2014 BMW Z4 sDrive28i Roadster, and 2014 BMW 428i Coupe, and 428i xDrive Coupe. Due to insufficient lubrication, the vacuum pump that supplies brake power assistance may fail. Note: This recall is an expansion of recall 13V-454.
Risk: A failure of the brake vacuum pump results in a reduction in braking power that could increase the risk of a crash.
Remedy: BMW will notify owners, and dealers will install a locking ring in the camshaft to retain the camshaft seal disk in the proper location, free of charge. The recall began on December 2, 2014. Owners may contact BMW customer service at 1-800-525-7417.
BMW of North America LLC (BMW) is recalling certain model year 2012-2014 320i, 328i, 320i xDrive, and 328i xDrive sedans; model year 2014 328i xDrive Sports Wagons; model year 2012-2013 528i and 528i xDrive sedans, model year 2013-2014 X1 sDrive28i and X1 xDrive28i vehicles and model year 2012-2014 Z4 sDrive28i roadsters. Due to insufficient lubrication, the vacuum pump that supplies brake power assistance may fail.
Risk: A failure of the brake vacuum pump results in a reduction in braking power that could increase the risk of a crash.
Remedy: BMW will notify owners, and dealers will modify the vehicles to prevent insufficient vacuum pump lubrication, free of charge. The safety recall began on January 31, 2014. Owners may contact BMW customer relations at 1-800-525-7417 or email BMW at CustomerRelations@bmwusa.com.
Carmakers sent NHTSA 116 service bulletins and notices that cover the 2014 Z4, the latest on Sep 21, 2026. They tell dealers how to fix known issues.
The parts they mention most: equipment (43), electrical system (37), engine (20), engine and engine cooling (19), fuel system (9).
NHTSA defect investigations
Opening an investigation isn't a finding of a defect. Outcomes are as NHTSA's summary states them. A recall is shown as an investigation's outcome only where NHTSA's summary names it; other recalls NHTSA's file lists with it are marked as listed, not caused.
Investigation
Part
Opened
Status
Preliminary evaluation PE13030 Loss of power assist braking
The owner's manual gives the oil and how often to change it. We show oil facts only once we've checked them against the manual, and we haven't yet for the 2014 Z4.
EPA class: two seaters. EPA greenhouse gas score: 5–7 out of 10. Each version EPA tested:
Swipe the table sideways for more columns.
Version
Engine
Transmission
Fuel
City / hwy / comb
Z4 sDrive28i Rear-Wheel Drive
2.0 L, 4 cyl, turbo
Automatic (S8)
Premium Gasoline
22 / 32 / 26
Z4 sDrive28i Rear-Wheel Drive
2.0 L, 4 cyl, turbo
Manual 6-spd
Premium Gasoline
22 / 33 / 26
Z4 sDrive35i Rear-Wheel Drive
3.0 L, 6 cyl, turbo
Manual 6-spd
Premium Gasoline
19 / 26 / 21
Z4 sDrive35i Rear-Wheel Drive
3.0 L, 6 cyl, turbo
Automatic (AM-S7)
Premium Gasoline
17 / 23 / 19
Z4 sDrive35is Rear-Wheel Drive
3.0 L, 6 cyl, turbo
Automatic (AM-S7)
Premium Gasoline
17 / 23 / 19
Sources and dates
U.S. EPA fuel economy data, file of Sep 29, 2026
NHTSA owner complaints, file of Oct 17, 2026
NHTSA recalls, file of Oct 17, 2026
NHTSA manufacturer communications, file of Oct 17, 2026
NHTSA defect investigations, file of Oct 17, 2026
NHTSA 5-Star Safety Ratings, file of Aug 7, 2026
U.S. Energy Information Administration, file of Oct 12, 2026
Fuel cost: EPA mpg with fuel prices for the week of Oct 12, 2026 and electricity prices for Jul 2026. Source: U.S. Energy Information Administration (Oct 2026). Complaints are unverified reports owners filed with NHTSA. About the data