YearToAvoid

2015 BMW Z4 Reliability Data: Problems & Recalls

Good The 2015 BMW Z4 has a Good verdict compared to other Z4 years, with a complaint index of 25 out of 100, 5 complaints, and 1 recall on record. It ranks 13th worst out of 17 model years, meaning most other years report more problems.

Based on NHTSA complaints per model-year, not a reliability rating. Methodology

YearToAvoid Scorecard

Complaint Index
25/100
#13 of 17 Z4 years
Verdict
Good
vs. other years of this model
Complaints
5
unique NHTSA reports
Recalls
1
distinct NHTSA campaigns
Crashes
0
reported in complaints
Fires
0
Injuries
0
Top issue
Electrical System
Best nearby year
2012
rated Best
NHTSA overall rating
Not rated
EPA combined MPG
22.5
19.5 city / 27.5 hwy
Injuries / deaths
0 / 0

Top 2015 BMW Z4 problems

Share of this year’s NHTSA complaints by component group. Groups with 15+ complaints have their own page.

  1. Electrical System3 (60%)
  2. Engine3 (60%)
  3. Transmission & Powertrain1 (20%)

A complaint can list more than one component, so shares add up to more than 100%. Shares are % of complaints.

What owners report

  • Owners report the car unexpectedly shifting itself into reverse while stopped with the brake pressed, at low mileage around 1,424 miles.
  • Headlights described as pointed too far downward, with an aiming sensor that keeps flipping and forces reliance on high beams for night driving, reported around 21,000 miles.
  • Some owners describe waiting for a water pump and plug connector recall repair because the replacement part was not available from the manufacturer.
  • Complaints cite both engine and electrical system tags tied to the same recall campaign for water pump and cooling issues.
2015 BMW Z4 complaints: complaints filed per month1Mar 2015Jul 2018Mar 2025Jun 2025Oct 2025
5 complaints filed with NHTSA from Mar 2015 to Oct 2025; peak Mar 2015 (1).

2015 BMW Z4 recalls

1 NHTSA recall campaign list this model year.

  1. NHTSA 24V608000Aug 13, 2024Electrical System720,796 vehicles

    Electrical system:wiring:connectors/plugs/receptacles

    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.

2015 BMW Z4 fuel economy and fuel cost

City
19.5 MPG
Highway
27.5 MPG
Combined
22.5 MPG
Annual fuel cost (EPA)
$3,625
15,000 mi/yr
Fuel
Premium
Current regular gas
$4.32/gal
national avg.

EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.

2015 compared with other Z4 years

Complaint Index by model year (0 = fewest issues, 100 = most)0255075100’05’06’07’08’09’10’11’12’13’14’15’16’19’20’21’22’23
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2013Caution507321
2014Good317321
2015Good255122.5
2016No verdict564122.5
2019Caution385628

All BMW Z4 years: best and worst →

Frequently asked questions

Is the 2015 BMW Z4 reliable?
Based on NHTSA owner complaints and recalls, the 2015 Z4 earns a Good verdict among Z4 years, with a complaint index of 25 out of 100 and only 5 complaints filed.
What problems does the 2015 BMW Z4 have?
The top problem area is the electrical system, tied with engine complaints at 60% share each, including headlight aiming issues and a water pump recall.
Does the 2015 BMW Z4 have any recalls?
Yes, NHTSA lists 1 recall, campaign 24V608000, covering the water pump and plug connector, with a protective shield installed as the remedy.
How does the 2015 Z4 compare to other years?
It ranks 13th worst out of 17 model years, better than years like 2005 (complaint index 100, Avoid) but not as low-risk as 2012, which is rated Best with a complaint index of 19.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.