The Good
The 2006 BMW Z4 offers a compelling mix of attributes. Its responsive handling and powerful engine options deliver a thrilling driving experience (performance). The iconic roadster design evokes a sense of freedom and style (emotional). While not the most luxurious, it balances comfort with a driver-focused cockpit (comfort). Reasonable fuel economy for its class and generally good reliability (with proper maintenance) make it a sensible choice (practical).
The Bad
Potential weaknesses of the 2006 BMW Z4 include electrical issues, particularly with the convertible top mechanism and window regulators. Oil leaks, especially from the valve cover gasket and oil filter housing, are also common. Suspension components, like bushings and control arms, may require replacement due to wear. The interior plastics are not the highest quality and can show wear and tear over time.
2006 BMW Z4: Quick Overview
- Engine Options:
- 2.5i: 2.5L Inline-6
- 3.0i: 3.0L Inline-6
- 3.0si: 3.0L Inline-6 (higher output)
- M: 3.2L Inline-6 (S54 engine)
- Horsepower:
- 2.5i: 184 hp
- 3.0i: 225 hp
- 3.0si: 255 hp
- M: 330 hp
- Fuel Economy (EPA Estimated):
- 2.5i: 20 city / 29 highway mpg (manual)
- 3.0i: 19 city / 27 highway mpg (manual)
- 3.0si: 19 city / 28 highway mpg (manual)
- M: 16 city / 23 highway mpg (manual)
- 0-60 Times:
- 2.5i: ~7.1 seconds
- 3.0i: ~6.2 seconds
- 3.0si: ~5.6 seconds
- M: ~5.0 seconds
- Towing Capacity: Not applicable; the Z4 is not designed for towing.
- Trim-Level Features:
- 2.5i: Standard features include power windows/locks, air conditioning, CD player, alloy wheels, and stability control.
- 3.0i: Adds features like leather upholstery, upgraded audio system, and sport seats.
- 3.0si: Includes sport suspension, aerodynamic body kit, and exclusive interior trim.
- M: Features a high-performance engine, upgraded suspension, M-specific styling, and enhanced braking system.
2006 BMW Z4 Specifications
Vehicle Information
| Year | 2006 |
| Make | BMW |
| Model | Z4 |
| Trim | - |
| Style | 2-Door |
| Type | Convertible |
| Category | Sports Car |
Manufacturing Details
| Made In | United States |
| Manufacturing City | GREER |
Dimensions
| Doors | 2-Door |
| Curb Weight | 1399.78 kg |
| Gross Vehicle Weight Rating | - |
| Overall Height | 129.79 cm |
| Overall Length | 409.19 cm |
| Overall Width | 178.05 cm |
| Wheelbase Length | 249.43 cm |
| Standard Seating | 2 |
Engine & Performance
| Engine | 3.0-L L-6 DOHC 24V |
| Engine Size | 3L |
| Engine Cylinders | 6 |
| Transmission | 6-Speed Manual |
| Transmission Type | Manual |
| Transmission Speeds | 6-Speed |
| Drivetrain | Rear-Wheel Drive |
Additional Features
| Anti-Brake System | 4-Wheel ABS |
| Steering Type | Rack & Pinion |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $35,600 USD |
| Invoice Price | $32,575 USD |
| Delivery Charges | $695 USD |
Vehicle History Report
Specifications
History
Events
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Listings
Recalls
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Analysis
What Problems Does the 2006 BMW Z4 Have?
Suspension issues, such as worn control arm bushings and ball joints, can lead to clunking noises and affect handling. The DISA valve (on the intake manifold) is also known to fail on the inline-6 engines. Early model years (2003-2005) experienced some issues with the steering rack, which were addressed in later models. Check engine lights are frequent, often triggered by O2 sensor failures or issues with the catalytic converters.
While recalls for the 2006 Z4 were relatively limited, it's essential to check the NHTSA website for any outstanding safety recalls based on the VIN. Long-term reliability depends heavily on maintenance history and driving habits. Regular oil changes, timely replacement of worn components, and addressing issues promptly are crucial for keeping the Z4 running smoothly.
How long will the 2006 BMW Z4 last?
Common long-term weaknesses include deterioration of rubber components (hoses, bushings), increased risk of electrical problems, and potential for rust in regions with harsh winters. The convertible top mechanism can become problematic with age, requiring more frequent maintenance. Regular preventative maintenance is key to maximizing longevity.
What Technology & Safety Features are Included?
Driver-assistance features were limited compared to modern cars. Standard safety features included anti-lock brakes (ABS), stability control (DSC), and front airbags. Side airbags were optional. There were no advanced driver-assistance systems (ADAS) like lane departure warning or automatic emergency braking available.
Crash-test ratings vary depending on the source. The NHTSA (National Highway Traffic Safety Administration) gave the Z4 4 stars for driver and passenger frontal crash protection and 5 stars for side crash protection. The IIHS (Insurance Institute for Highway Safety) did not fully evaluate the 2006 Z4. Overall, the Z4 provides adequate safety for its time, but lacks the advanced safety technology found in newer vehicles. Keep in mind that technology has moved on substantially since 2006, so factor this into your expectations.
What Colors Options are Available?
Exterior Colors
Interior Colors
2006 BMW Z4 Prices and Market Value
2006 BMW Z4 Cost of Ownership
2006 BMW Z4 Fuel Efficiency
2006 BMW Z4 Safety Rating
NHTSA
IIHS
2006 BMW Z4 Recalls & Defects
Engine and Engine Cooling:exhaust System:emission Control:crankcase (Pcv)
Engine and Engine Cooling:exhaust System:emission Control:crankcase (Pcv)
2006 BMW Z4 Warranty
Basic
Powertrain
Rust
2006 BMW Z4 Insurance
reasonable repair costs.
How Does the 2006 BMW Z4 Compare to Other Convertible?
Compared to the SLK, the Z4 offered a sportier feel and more direct steering. The TT provided a more modern interior and available all-wheel drive. The Boxster arguably had the best handling, but came at a higher price point. Reliability-wise, the Z4 is generally considered comparable to the SLK and TT, but slightly less reliable than the Boxster.
For a similar driving experience and potentially better reliability, a well-maintained Porsche Boxster (especially a later model year) is a strong alternative, but you'll likely pay more. If luxury and a retractable hardtop are priorities, the Mercedes-Benz SLK is a good option. The Audi TT offers a blend of style and performance. Ultimately, the best choice depends on individual preferences and budget.
Ranks #121 Convertible
| 1 | 2005 Toyota MR2 Spyder | (0.0★) |
| 2 | 2015 Lexus IS | (0.0★) |
| 3 | 2009 Honda S2000 | (4.0★) |
| 4 | 2023 Mazda MX-5 Miata RF | (4.0★) |
| 5 | 2023 BMW 8 Series | (0.0★) |
| 6 | 2021 Ford Mustang | (5.0★) |
| 7 | 2020 Mercedes-Benz SL-Class | (0.0★) |
| 8 | 2023 Audi S5 Sportback | (0.0★) |
| 9 | 2023 Ferrari F8 Spider | (0.0★) |
| 10 | 2023 Porsche 718 Boxster | (5.0★) |
| 11 | 2021 Jeep Compass | (5.0★) |
| 12 | 2019 Buick Cascada | (0.0★) |
| 121 | 2006 BMW Z4 | (4.0★) |
Final Verdict: Is the 2006 BMW Z4 a Good Convertible?
Avoid neglected examples with high mileage and incomplete maintenance records. A pre-purchase inspection by a qualified mechanic is highly recommended. If you prioritize reliability above all else, consider a newer, less enthusiast-focused vehicle. If you appreciate classic roadster styling and BMW's driving dynamics, the 2006 Z4 can be a rewarding purchase.
Mike R on November 13, 2023
Papa’s ZA fun car to drive. I’ve received several compliments because how new or newer it looks being a 2006 Z4 e85. Kudos to the designers.
Moonlight Jazz on March 28, 2023
BMW Z3 or Z4? There is no question!Moonlight Jazz here.... apparently my ratings for this vehicle were not recorded and I wanted the readers to have my input. After driving this car for a few months now, I maintain my initial thoughts....she is quite the machine!!!
Moonlight Jazz on December 13, 2022
Z3 or Z4? That is the question.Just purchased a Alpine white 3.osi with red leather interior. Carfax shows every service by BMW dealer. Drove a 2002 BMW Z3 for 14 years wondering if I'd really smile any bigger with a Z4. The answering is: YES!!! The ride is smoother and just ease your foot on the gas....this is quite a machine!!
Hillside Driver on June 8, 2021
Best and Most Reliable Sports Car I've Ever OwnedThis car truly lives up to BMW's ads claiming it's a "Driving Machine". I just bought a 2nd BMW (X3), which is more practical, but I never plan on selling my older 2006 BMW Z4 3.0Si roadster. I absolutely LOVE this car due to its styling, performance, reliability, and how FUN it is to drive. I actually like the classic 2006 Z4 roadster far better than a lot of the newer Z4 models. It's definitely a collector's car at this point.
Acupunk on July 9, 2020
Love it.The design, the undercarriage, the feel, the gearbox, the ease of convertible raising and lowering, are all superb. Gorgeous lines. My BWM mechanic tells me the engine is superb and will last many, many years with good care.
Beave on May 21, 2020
Fun to drive and get lot's of complimentsI bought used and only have it a month, but I love driving this car. Even with the base engine it has good power. Get lot's of compliments from everyone about the design. Dinged 1 star in performance because of the electric power steering.
Cindy convertible lover on May 9, 2020
Fun car to driveThis car is great for weekend driving. Fun and solid car to drive. Could use better cupholders. Runs smooth excellerates Quickly. For a car that’s 14 years old, it looks new.
tall0n on January 28, 2020
Iconic and Timeless Design.I purchased a 2006 BMW Z4 3.0i Roadster when it was 14 years old and had 57,200 miles. This car ROCKS! After 14 years, it still looks like a new car design. While the interior doesnt have all of the gizmos of a current vehicle, its really not needed (iphone cradle, anyone). As far as reliability, I have only had to buy tires and an oil change. The engine purrs on idle and screams when given the gas. The handling is supurb and can turn on a dime. I like this better than my two year old Audi A6.
AutoAficianodo on November 17, 2018
Beautiful car with timeless designStrong inline-6 with lots of torque and exhilarating to drive. Hard to find as there were not many of the coupes brought to the US. Approximately only 1,200 sold. These cars go for a premium over the Z4 convertibles due to their relative rarity.
FloridaZ4 on August 11, 2018
It is a fun car, but ext. warranty recommendedFun to drive, good gas mileage but too many repairs. Expensive run-flat tires (Bridgestone finally makes less expensive tires with a mileage warranty) I had several repairs that I wouldn't have expected from a BMW. Window actuator, starter, a/c, power top (3rd time failure)
Eugene S
Eugene is an automotive enthusiast with over 15 years of experience in the used car market. As a writer at VINCheck.info, he brings deep industry insight and a passion for cars, helping readers make smart, informed decisions. Eugene has written hundreds of used car reviews and is known for breaking down complex automotive topics into clear, actionable advice. Over the years, he has driven and worked on a wide range of vehicles—starting with tuning street cars in his early days and eventually focusing on performance upgrades and reliability improvements. Today, he specializes in evaluating used vehicles through the lens of real-world ownership and enthusiast needs. A longtime fan of Porsche, Eugene especially appreciates vehicles that blend durability with driving enjoyment.