Is the 2008 BMW Z4 reliable?

NHTSA data gives the 2008 Z4 a Complaint Index of 69, worse than most other Z4 years, ranking 6th worst of 17. It carries a Caution verdict, driven mainly by airbag and steering complaints.

What are the most common problems with the 2008 BMW Z4?

Airbags account for 42% of complaints, mostly passenger seat sensor mat failures at a median 65,000 miles. Steering issues make up 26% of complaints, with a median mileage of 52,010.

Does the 2008 BMW Z4 have any recalls?

NHTSA lists 2 recalls for the 2008 Z4, both tied to the engine, including a PCV valve heater replacement and a later expanded wiring recall covering related BMW models.

What year Z4 should I avoid?

Among Z4 years, 2005 and 2006 have the highest Complaint Indexes at 100 and 94, both rated Avoid. The 2008 model, with an index of 69, is rated Caution, better than those years but still above several later model years like 2010 and 2012.

2008 BMW Z4 Reliability Data: Problems & Recalls

Caution The 2008 BMW Z4 has a Complaint Index of 69, ranking 6th worst out of 17 model years, and carries a Caution verdict. Owners mainly reported airbag sensor faults and steering problems, with 2 recalls tied to this year.

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

YearToAvoid Scorecard

Complaint Index: 69/100; #6 of 17 Z4 years
Verdict: Caution; vs. other years of this model
Complaints: 19; unique NHTSA reports
Recalls: 2; distinct NHTSA campaigns
Crashes: 0; reported in complaints
Fires: 0
Injuries: 0
Top issue: Airbags
Best nearby year: 2012; rated Best

NHTSA overall rating: Not rated
EPA combined MPG: 21; 18 city / 28 hwy
Injuries / deaths: 0 / 0

2008 BMW Z4 recalls

2 NHTSA recall campaigns list this model year.

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.
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.

2008 BMW Z4 fuel economy and fuel cost

City: 18 MPG
Highway: 28 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.

2008 compared with other Z4 years

Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best

Year	Verdict	Index	Complaints	Recalls	MPG
2006	Avoid	94	91	2	21
2007	Avoid	81	33	2	21
2008	Caution	69	19	2	21
2009	Avoid	75	22	4	21
2010	Good	44	10	5	21

All BMW Z4 years: best and worst →

Frequently asked questions

Is the 2008 BMW Z4 reliable?: NHTSA data gives the 2008 Z4 a Complaint Index of 69, worse than most other Z4 years, ranking 6th worst of 17. It carries a Caution verdict, driven mainly by airbag and steering complaints.
What are the most common problems with the 2008 BMW Z4?: Airbags account for 42% of complaints, mostly passenger seat sensor mat failures at a median 65,000 miles. Steering issues make up 26% of complaints, with a median mileage of 52,010.
Does the 2008 BMW Z4 have any recalls?: NHTSA lists 2 recalls for the 2008 Z4, both tied to the engine, including a PCV valve heater replacement and a later expanded wiring recall covering related BMW models.
What year Z4 should I avoid?: Among Z4 years, 2005 and 2006 have the highest Complaint Indexes at 100 and 94, both rated Avoid. The 2008 model, with an index of 69, is rated Caution, better than those years but still above several later model years like 2010 and 2012.