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Expensive tires which last about 1 year with aggressive driving. No major mechanical problems after 4 years which weren't covered by warranty.
#2003 mercedes kompressor software
Fast when the transmission software work, needs reflashing almost annually however. SLK 32 is faster than the SLK 55 but not as feature-filled. Reliability has been flawless, though I don't put a lot of miles on it, reserving it for sunny day drives. I routinely get 27mpg around town and 32mpg on the highway driving conservatively. The 2 tone interior is very attractive, and the retractable hard top does it job of making the car superbly "all-weather" compared to cloth tops especially well. The transmission shifts well, though until warm, it tends to shift at a slightly higher rpm that necessary. A slightly more sporting exhaust would be welcome, and would camouflage the roughness IMO.
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The 4cyl engine is a tad rough and growls a bit compared to the available V6 3.2 liter (which I have in another Mercedes I own), but it does a good job, though the supercharger needed a new coupling to quiet a bit of noise it was making. Compared to previous "big" SLs I owned, the SLK offers superior handling that reflects "soul," as if the car is exactly enjoying the drive, compared to earlier Series 1 and 2 SLs that were competent, and comfortable, but somewhat boring (though I loved the styling and the quality). I bought my '03 SLK in 2011 with 38,000 miles in near showroom condition, having obviously well cared for by its first owner.
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