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BMW Z4 vs. BMW Z3 Reliability Comparisons

You won't find BMW Z4 or BMW Z3 reliability information like this anywhere else. Actual repair frequencies, not just vague dots, to make it clear how much the BMW Z4 and the BMW Z3 truly differ in reliability.

These stats are promptly updated four times a year, to much more closely track BMW Z4 and BMW Z3 reliability as the cars age. Others tell you how reliable the BMW Z4 and the BMW Z3 were a year ago, when the cars were a year younger and had 12,000 fewer miles on them. Only TrueDelta tells you how reliable the BMW Z4 and the BMW Z3 have been recently.

Take the TrueDelta survey on your car and get free access to all of the data on this page. Click here to get started!
See reliability results for all Hatchbacks and Convertibles and

See only powertrain and chassis results

Year Make/Model Repair Frequencysuccessful repair trips per 100 cars per year Compared to all models for the same year  
2007 BMW Z4 28 Z4s, 9.0 months of data per Z4, average 45700 miles

Like other sports cars, low average odometer reading.
48
30% Fewest Trips Most Trips
see reported repairs

 

2006 BMW Z4 31 Z4s, 9.8 months of data per Z4, average 54200 miles

Like other sports cars, low average odometer reading.
39
20% Fewest Trips Most Trips
see reported repairs

 

2005 BMW Z4   11 Z4s, 9.8 months of data per Z4, average 55200 miles

* Very small sample size.
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or 11 Z4s, 9.8 months of data per Z4, average 55200 miles

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2004 BMW Z4   11 Z4s, 10.4 months of data per Z4, average 85600 miles

* Very small sample size.
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or 11 Z4s, 10.4 months of data per Z4, average 85600 miles

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2003 BMW Z4 33 Z4s, 9.6 months of data per Z4, average 74100 miles

Like other sports cars, low average odometer reading.
45
0% Fewest Trips Most Trips
see reported repairs

 

2001 BMW Z3 27 Z3s, 11.1 months of data per Z3, average 81300 miles

Like other sports cars, low average odometer reading.
48
0% Fewest Trips Most Trips
see reported repairs

 

2000 BMW Z3 28 Z3s, 8.6 months of data per Z3, average 82300 miles

Like other sports cars, low average odometer reading.
35
0% Fewest Trips Most Trips
see reported repairs

 

1999 BMW Z3   13 Z3s, 10.5 months of data per Z3, average 103000 miles

* Very small sample size.
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or 13 Z3s, 10.5 months of data per Z3, average 103000 miles

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What People Are Saying about Reliability and the BMW Z4

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What Our Members Are Saying about the Reliability and Durability of the BMW Z4

BMW Z4 Reliability and Durability: Pros
YearBody/PowertrainComment
2007 2dr Hatch 255-horsepower 3.0L I6
6-speed manual RWD
Certified pre-owned.
2006 2dr Convertible 215-horsepower 3.0L I6
6-speed manual RWD
The car has the remaining new car warranty and maintenance. It is CPO to 6yr-100k miles.
2006 2dr Convertible 215-horsepower 3.0L I6
6-speed manual RWD
It has a reputation with consumer organizations for very reliable performance - a real plus when repairs on such cars are so expensive. The "certified" warranty was important to me with this in mind.
BMW Z4 Reliability and Durability: Cons
YearBody/PowertrainComment
2003 2dr Convertible 184-horsepower 2.5L I6
5-speed manual RWD
Parts(e.g., fuel pump) that would nearly outlast any domestic or foreign car make failed after only 25,000 miles. Dealer attempted to charge me nearly $2000 to replace same...said "No thanks," and took to independent garage who charged 1/3 to repair.
 

What Our Members Are Saying about the Reliability and Durability of the BMW Z3

BMW Z3 Reliability and Durability: Pros
YearBody/PowertrainComment
2000 2dr Convertible 193-horsepower 2.8L I6
4-speed automatic RWD
I got over a 150K miles and only minor items less then $500 dollars on repairs other then tires and brakes
2000 2dr Convertible 170-horsepower 2.5L I6
4-speed automatic RWD
Car of the year in 2000. Best Consumer Reports value for 5 years in a row for its class. Model Rating - Overall 4 stars Trim Rating - Overall 5 stars Appearance 5 stars Comfort 5 stars Performance 5 stars Reliability 5 stars
BMW Z3 Reliability and Durability: Cons
YearBody/PowertrainComment
2000 2dr Convertible 193-horsepower 2.8L I6
5-speed manual RWD
I experienced continued problems with the A/C system and the engine cooling system. Also, the rag top did not hold up well and developed a leak.