2008 Mercedes-Benz SLK-Class Review
2008 Mercedes-Benz SLK-Class Review
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Used SLK-Class for sale
Appraise This CarMercedes-Benz SLK-Class model years
Mercedes-Benz SLK-Class types
- Convertible
- SLK55 AMG
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Edmunds' Expert Review
by the Edmunds Experts
Pros
- Stylish design, sharp handling, powerful engine lineup, comfort and convenience of retractable hardtop.
Cons
- More expensive than rivals, big blind spots when top is up, steering a little lacking in feel.
What’s new
The 2008 Mercedes-Benz SLK-Class sees a couple of minor equipment changes, including the SLK350 now only being available with an automatic transmission. Also new is the Edition 10 package, which celebrates the SLK's 10 years in production and features a black or silver exterior with a black-and-red interior scheme, special 10-spoke wheels, and smoked headlight and taillight bezels.
Edmunds says
Being a Mercedes-Benz, you'd expect the 2008 SLK-Class to provide plenty of style, luxury features and brand cachet. That it does. But it also provides a surprising amount of performance capability as well.
Cost to DriveCost to drive estimates for the 2008 Mercedes-Benz SLK-Class SLK280 2dr Convertible (3.0L 6cyl 6M) and comparison vehicles are based on 15,000 miles per year (with a mix of 55% city and 45% highway driving) and energy estimates of $4.58 per gallon for premium unleaded in Ohio.
Monthly estimates based on costs in Ohio
$278/mo for SLK-Class SLK280
SLK-Class SLK280
vs
$183/mo
Avg. Compact Car
Vehicle overview
The first-generation Mercedes-Benz SLK roadster looked like a serious performance car, but in reality (apart from the hyper SLK32 AMG) it wasn't. That first SLK, which boasted a class-exclusive retractable hardtop, was more a boulevard cruiser than a canyon carver. And for a lot of buyers, that was fine. But for driving enthusiasts wanting a roadster with agility and speed, the SLK left something to be desired.
All of this changed when the second-generation model debuted a few years ago. This model received an extreme makeover to please all but the most demanding drivers. The 2008 Mercedes-Benz SLK is representative of the latest generation, and its stiff platform, powerful engine lineup, strong brakes and an available sport-tuned suspension allow it to be equally at home slicing up Mulholland Drive as it is cruising Rodeo Drive.
Competing against the likes of the BMW Z4, Nissan 350Z and Porsche Boxster, the SLK makes a strong showing thanks to its still unique-in-class retractable hardtop, classy cabin, distinctive looks and solid performance credentials. There is, of course, a premium to be paid for driving this sweetheart and some potential buyers may be put off by the Benz's higher-than-typical price. And others might prefer the Z4 and Boxster's still sharper handling dynamics. But those looking for a roadster that offers coupe-like comfort, plenty of performance and generous helpings of luxury and prestige should seriously consider the 2008 Mercedes-Benz SLK-Class.
Performance & mpg
Powering the SLK280 is a 3.0-liter V6 that makes 228 horsepower and 221 pound-feet of torque. The SLK350 comes with a 3.5-liter V6 good for 268 hp and 258 lb-ft of torque. The SLK280 can be had with either a six-speed manual or a seven-speed automatic transmission with manual shift control, while the SLK350 is automatic only. The high-performance SLK55 AMG comes with a 5.4-liter V8 that pumps out 355 hp and 376 lb-ft of torque; it's paired up with a seven-speed automatic. The AMG is a potent performer, with a claimed 0-60-mph time of 5.1 seconds. The more common SLK350 is also respectably quick, as we've timed it at 6.3 seconds for that drill.
Safety
Antilock disc brakes with brake assist, stability control, traction control, knee airbags and side airbags (that provide head and chest protection) and the TeleAid emergency call system are all standard on the 2008 Mercedes-Benz SLK-Class.
Driving
Mercedes-Benz isn't typically known for building true drivers' cars, but the SLK is an exception. It delivers solid performance in acceleration, braking and handling. Obviously, the AMG model has the most performance potential, and indeed it posts impressive numbers in instrumented testing. But one needn't spring for the AMG for an entertaining drive, as the 280 and 350 models provide plenty of fun for enthusiasts. Only when compared directly to this segment's athletic star, the Porsche Boxster, do the SLK's slightly less tactile steering and slower handling responses become apparent.
Interior
With the hardtop up, the SLK provides the security and comfort of a traditional coupe. The only downside is partially obscured sight lines, as there are blind spots caused by the roof pillars. Transforming the SLK into an open roadster takes just 22 seconds. When lowered, that top takes up considerable space in the trunk, but there are still 6.5 cubic feet of space available for luggage.
The cockpit features plenty of handsome, soft-touch materials and even the plastics used exhibit the same high quality. The soft and supportive seats remain comfortable even after several hours of driving, and if you keep the windows up while the top is down, wind buffeting is minimal. Those who like to have the top down at every opportunity will love the optional "Airscarf" system that channels warm air to your neck and shoulders via dedicated ducts in the headrests. Although it may feel like having a wolverine breathing down your neck, it actually works quite well and when it's combined with traditional seat heaters, the 2008 Mercedes-Benz SLK becomes one of the most useful all-weather convertibles on the market.
2008 Mercedes-Benz SLK-Class models
The 2008 Mercedes-Benz SLK-Class is a two-passenger roadster that features a power-retractable hardtop. Three trim levels are offered: SLK280, SLK350 and SLK55 AMG. Standard equipment on the SLK280 includes 16-inch alloy wheels, leather upholstery, a tilt/telescoping steering wheel, dual-zone automatic climate control and a nine-speaker CD audio system. In addition to a larger V6 engine, the SLK350 adds 17-inch wheels and larger brakes. The V8-powered SLK55 AMG offers ultimate performance and comes with 18-inch wheels, high-performance tires, bigger brakes, a sport-tuned suspension, power and heated seats with driver-side memory, a power tilt/telescoping steering wheel, upgraded leather upholstery, and unique interior and exterior trim details.
Many of the AMG model's extra features are optional on the SLK280 and SLK350. Other SLK options include bi-xenon headlamps, a navigation system, a 380-watt surround-sound audio system, a glovebox-mounted CD changer, satellite radio, and an Airscarf system that directs heat through vents in the head restraints. There are also special "designo" color-themed packages based on exterior paint color and interior trim. The SLK280 and 350 can also be equipped with a sport package that includes a sport-tuned suspension, steering-wheel-mounted automatic transmission shift buttons and special wheels and exterior styling details.
To celebrate 10 years in production, there is the Edition 10 package, available on the SLK280 and SLK350. It features a black or silver exterior with a black-and-red interior scheme, special 10-spoke 17-inch wheels and smoked headlight and taillight bezels.
2025 Mercedes-AMG GT 63 S E Performance Sets Sights on the 911 Turbo S
Reliability Ratings by RepairPal
4 out of 5 stars4/5Above Average
#5 out of 26 among Luxury Compact Cars
RepairPal Reliability Ratings are based on the actual cost, frequency, and severity of unscheduled repairs and maintenance on make/model data for select 2008-2022 vehicles. The reliability of a specific vehicle may vary depending on its maintenance and driving history, model year, trim, and features.
Cost
The average total annual cost for unscheduled repairs and maintenance across all model years of the Mercedes-Benz SLK-Class from 2008-2022.$490/yr
vs. $554/yr
for Average Luxury Compact Car
for Average Luxury Compact Car
Frequency
The average number of times this model is brought into the shop for unscheduled repairs and maintenance in a single year. RepairPal calculates this metric by tracking millions of unique vehicles over multiple years to determine an average number of visits per year (omitting small routine visits, e.g., oil changes).1.1x/yr
vs. 1.57x/yr
for Average Luxury Compact Car
for Average Luxury Compact Car
Severity
The probability that a repair will be a major issue, meaning the repair costs 3x the average annual repair cost for all models. This threshold will be higher for vehicles that have higher labor rates and parts costs (such as a premium brand).7.3%
vs. 11.1%
for Average Luxury Compact Car
for Average Luxury Compact Car
powered by RepairPal Based on RepairPal reliability data as of 8/23/2023. Ratings are provided by RepairPal and Edmunds is not responsible for their accuracy.
Consumer reviews
Read what other owners think about the Used 2008 Mercedes-Benz SLK-Class.
5 star(83%)
4 star(4%)
3 star(7%)
2 star(6%)
1 star(0%)
41 reviews
Trending topics in reviews
Most helpful consumer reviews
5 out of 5 stars
What's not to like?
Anonymous, 12/06/2010
2008 Mercedes-Benz SLK-Class SLK350 2dr Convertible (3.5L 6cyl 7A)
I purchased the car because I was tired of looking for "safe" parking for my Porsche Boxster. The hard-top convertible gives me peace-of-mind so I can park on-street. For the first few weeks, I really missed the Porsche. But now I wouldn't go back. After adjusting to the different ride characteristics, I feel it handles as well as the Boxster and is far superior for longer drives. The … AMG sport package is a must if you want a sports car experience. I've owned MG's, Triumphs, 240Z, 260Z, Porsche 911 Carrerra, Porsche 944 and Porsche Boxster (yes, I'm now an old guy.) This car is as much fun as any of my past cars, and as fast as anything I've driven.
4.63 out of 5 stars
The Perfect Machine
WFTJR, 06/06/2008
2008 Mercedes-Benz SLK-Class SLK280 2dr Convertible (3.0L 6cyl 6M)
The lease was up on my 2006 E350 so I jumped into a 2008 SLK 280. The E350 is flawless but I needed more of a "wow" factor. The black exterior with the tan and black interior is stunning. This car is the perfect blend of performance and luxury. My SLK has Premium III (navigation) with the appearance package. The retractable hardtop is provides the "wow" factor. The fun of driving a … convertible without the downside of a ragtop. My only other convertable was a 2003 Z4. The SLK provides more convenience, safety and luxury than the Z4. Remember, it's not how fast you go, it's how well you go fast.
4.75 out of 5 stars
My wife's Dream Car
Frank, 06/11/2008
2008 Mercedes-Benz SLK-Class SLK280 Edition 10 2dr Convertible (3.0L 6cyl 6M)
We enjoy this special car because of its unique appearance and build quality. The car is very stable on the highway and absorbs road imperfections well. The black metallic paint is of superior quality and shines beautifully (if clean). The gear shifter feels industrial in strength but the sun visors are very small and cheap. Seats are firm but comfortable for long distance cruising. … Road noise can be heard from the rear when driven above 40 mph. The sound of the engine via the tail pipe is second only to the Porsche in the roadster class. Great safety is a given as is its long term durability. Learning the features of the car and the interior buttons may take time.
4.75 out of 5 stars
Sport and Luxury!
Jane, 01/25/2007
2007 Mercedes-Benz SLK-Class SLK350 2dr Convertible (3.5L 6cyl 6M)
Love this car! I commute 150 miles daily so fun and comfort is key. I wanted a sports car but with a smooth ride, manual transmission AND a luxurious interior. That combo is hard to find. But it's all in this car and more. It's very quick but has a creamy ride (makes my old Z4 feel like a tin can)and the shifting is very smooth. The airscarf is awesome. The HK stereo incredible. Love … the nav, but I wonder if the DVD is outdated, it doesn't list some very popular restaurants in our area? The car (mine's black) is stunning with the top down. All this and I feel very safe in it too.
We have a limited number of reviews for the 2008 Mercedes-Benz SLK-Class, so we've included reviews for other years of the SLK-Class since its last redesign.
2008 SLK-Class Highlights
Convertible
SLK280
Base MSRP Excludes Destination Fee | $44,150 |
---|---|
Engine Type | Gas |
Combined MPG | 20 MPG |
Cost to Drive | $278/month |
Seating | 2 seats |
Cargo Capacity All Seats In Place | 9.8 cu.ft. |
Drivetrain | rear wheel drive |
Warranty | 4 years / 50,000 miles |
Safety
Key safety features on the SLK-Class include:
- Alarm
- Tire Pressure Warning
- Stability Control
- Post-collision safety system
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