YearToAvoid

2011 BMW Z4 Reliability Data: Problems & Recalls

Avoid The 2011 BMW Z4 ranks 3rd worst out of 17 model years, with a complaint index of 88, 46 complaints, and 6 recalls. Engine problems dominate at 37% of complaints, followed by steering at 28%, making it an Avoid year relative to other Z4 model years.

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

YearToAvoid Scorecard

Complaint Index
88/100
#3 of 17 Z4 years
Verdict
Avoid
vs. other years of this model
Complaints
46
unique NHTSA reports
Recalls
6
distinct NHTSA campaigns
Crashes
1
reported in complaints
Fires
0
Injuries
0
Top issue
Engine
Best nearby year
2012
rated Best
NHTSA overall rating
Not rated
EPA combined MPG
21
18 city / 26 hwy
Injuries / deaths
0 / 0

Top 2011 BMW Z4 problems

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

  1. Engine17 (37%)
  2. Steering13 (28%)
  3. Suspension, Wheels & Tires10 (22%)
  4. Brakes6 (13%)
  5. Electrical System3 (7%)
  6. Fuel System2 (4%)
  7. Other2 (4%)
  8. Transmission & Powertrain2 (4%)

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

What owners report

  • Engine stalls suddenly at low speeds, sometimes with a full electrical shutdown while still in gear.
  • Brakes lose stopping power without warning, in one case forcing a driver to crash into a curb to stop.
  • Rear wheels develop hairline cracks, leading to air leaks and tire blowouts at highway speed.
  • Power steering seizes while driving, making the vehicle hard to control.
  • Idrive electronics fail after dealer reprogramming, causing the air conditioning to stop working repeatedly.
2011 BMW Z4 complaints: complaints filed per month3Jun 2012Oct 2013Aug 2016Apr 2018Oct 2020Nov 2022May 2024Mar 2025
46 complaints filed with NHTSA from Jun 2012 to Apr 2026; peak Oct 2016 (3).

2011 BMW Z4 recalls

6 NHTSA recall campaigns list this model year.

  1. NHTSA 23V707000Oct 20, 2023Engine157,796 vehicles

    Engine and engine cooling:engine

    BMW of North America, LLC (BMW) is recalling certain 2010-2012 1 Series Coupe, 1 Series Convertible, 3 Series Sedan, 3 Series Convertible, 2010-2011 3 Series Sportswagon, 3 Series Coupe, 5 Series Sedan, X3 xDrive 28i, X3 xDrive 30i, X5 xDrive30i, and Z4 sDrive30i vehicles. The aluminum bolts that secure the housing for the variable camshaft timing adjustment (VANOS) unit can loosen over time and possibly break.

    Risk: Loose or broken VANOS unit bolts can result in an engine stall, increasing the risk of a crash.

    Remedy: Dealers will replace the four VANOS bolts, free of charge. Interim letters notifying owners of the safety risk are expected to be mailed December 18, 2023. Owner notification letters were mailed June 19, 2024. Owners may contact BMW customer service at 1-800-525-7417.

  2. NHTSA 22V119000Mar 2, 2022Engine917,106 vehicles

    Engine and engine cooling:exhaust system:emission control:crankcase (pcv)

    BMW of North America, LLC (BMW) is recalling certain 2008-2013 1 Series Coupe (128i); 2007-2013 3 Series Coupe (328i, 328xi, 328i xDrive); 2007-2010 X3 SAV (X3 3.0si, X3 xDrive30i); 2008-2013 1 Series Convertible (128i); 2006-2011 3 Series Sedan (325i, 325xi, 328i, 328xi, 328i xDrive, 330i, 330xi); 2006-2012 3 Series Wagon (328i, 328i xDrive); 2007-2013 3 Series Convertible (328i); 2006-2010 5 Series Sedan (525i, 525xi, 528i, 528xi, 530i, 530xi); 2006-2007 5 Series Wagon (530xi); 2007-2010 X5 SAV (X5 3.0si, X5 xDrive30i); 2006-2008 Z4 Coupe (Z4 3.0si); and 2006-2011 Z4 Roadster (Z4 3.0i, Z4 3.0si, Z4 sDrive30i) vehicles. The heater for the positive crankcase ventilation (PCV) valve may short circuit.

    Risk: An electrical short can cause the PCV valve heater to overheat, increasing the risk of a fire while driving or, soon after driving when parked.

    Remedy: This recall supersedes and expands previous NHTSA recalls 17V-683 and 19V-273. Dealers will install an electrical wiring harness with fuse protection for the PCV Valve heater in potentially affected vehicles, free of charge. This recall supersedes and expands previous NHTSA recalls 17V-683 and 19V-273. Vehicles previously repaired under the prior recalls will need to come back for the new recall remedy. The remedy is currently being developed. Interim owner notification letters informing owners of the safety risk were mailed on April 1, 2022. Owner notification letters were mailed on July 22, 2022. Owners may contact BMW customer service at 1-800-525-7417.

  3. NHTSA 17V683000Oct 30, 2017Engine740,561 vehicles

    Engine and engine cooling:exhaust system:emission control:crankcase (pcv)

    BMW of North America, LLC (BMW) is recalling certain 2008-2011 128i and 2007-2011 328i, 328xi, 328i xDrive, 525i, 525xi, 528i, 528xi, 530i, 530xi, X3 3.0si, X3 xDrive30i, X5 xDrive30i, Z4 3.0i, Z4 3.0si and Z4 sDrive30i vehicles. The heater for the positive crankcase ventilation (PCV) valve may short circuit.

    Risk: An electrical short can cause the parts within the PCV valve to melt, increasing the risk of a fire, even when the vehicle is not in use.

    Remedy: BMW will notify owners, and dealers will replace the PCV valve heater, free of charge. Interim letters were mailed on November 27, 2017. Owners will receive a second notification by the end of October 2018. Owners may contact BMW customer service at 1-800-525-7417.

See all 6 recalls for the 2011 BMW Z4 →

2011 BMW Z4 fuel economy and fuel cost

City
18 MPG
Highway
26 MPG
Combined
21 MPG
Annual fuel cost (EPA)
$3,800
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.

2011 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
2009Avoid7522421
2010Good4410521
2011Avoid8846621
2012Best195421
2013Caution507321

All BMW Z4 years: best and worst →

Frequently asked questions

Is the 2011 BMW Z4 reliable?
NHTSA data shows the 2011 Z4 has a complaint index of 88, the third worst of the 17 model years tracked, so it is rated Avoid relative to other Z4 years.
What are the most common problems with the 2011 BMW Z4?
Engine issues account for 37% of complaints (median mileage 30,000), followed by steering at 28% (median mileage 45,499) and suspension/wheels/tires at 22% (median mileage 33,000).
Does the 2011 BMW Z4 have recalls?
NHTSA lists 6 recall campaigns affecting the 2011 Z4, covering engine VANOS bolts, PCV valve heaters, wiring, a rear driveshaft CV joint, and a battery cable connector.
Which Z4 model years should I avoid instead of 2011?
NHTSA complaint data ranks 2005 (complaint index 100) and 2006 (94) worse than 2011 (88), while 2012 and 2015 are rated Best or Good with much lower complaint indexes of 19 and 25.
How many complaints does the 2011 BMW Z4 have?
NHTSA has logged 46 complaints for the 2011 Z4, including 1 crash and 0 fires or injuries.

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.