SLK/SLC New SLK First Drives/Road Tests Thread


The Mercedes-Benz SLK-Class is a compact executive roadster, produced by Mercedes-Benz. It was released in 1996 and was built at the Mercedes plant in Bremen, Germany, until the end of production in 2020. The former name "SLK" was derived from sportlich (sporty), leicht (lightweight), and kurz (short). With the release of the facelift R172 in 2016, the SLK-Class was renamed to SLC-Class in accordance with the revised nomenclature adopted by Mercedes. Under this scheme, roadsters use the base name "SL", followed by the model's placement in Mercedes-Benz hierarchy, the letter "C", being the roadster equivalent to the C-Class.

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From Autocar: Mercedes-Benz SLK 250 CGI

















What is it?

Mercedes-Benz is making some big promises about its new SLK. This third-iteration two-seater, they say, represents a much larger evolutionary step forward than the second, and possesses greater sporting appeal than its predecessor.

What’s it like?

Dimensionally, the new roadster has grown: length is up by 31mm, width by 33mm and height by 5mm. Its rear-wheel drive chassis is a development of that used by the outgoing model, with the same 2430mm wheelbase but wider tracks.

Inside, the new SLK feels roomier than its predecessor, largely thanks to its added width, which frees up shoulder room. The design of the dashboard, instruments, controls, air vents and centre console borrows various aeronautical themes from the SLS. It’s nicely laid out and an improvement on the old car, if a little heavy on hard plastics.

One of the most impressive things about the new SLK remains its folding hard-top roof. Now it has a lightweight magnesium frame and a new electronic mechanism for faster operation, taking less than 20 seconds to open up.

Mercedes plans to introduce three SLKs to the UK in June: the SLK200 with a 181bhp turbocharged 1.8-litre petrol engine, the SLK250 packing a more highly tuned 201bhp version of the same four-cylinder unit, and the SLK350 running Merc’s new normally aspirated 3.5-litre V6 with 302bhp. Later in the year there will also be an SLK250 CDI with a 201bhp 2.2-litre diesel – the first oil-burner in an SLK – as well as the SLK55 AMG, which gets a new 422bhp normally aspirated version of AMG’s new 5.5-litre V8.

The engine in the SLK250 we’re testing, which will account for a significant chunk of UK sales, seems well suited to the car, providing gutsy performance across a wide range of revs and greater levels of top-end smoothness than you’d expect from a four-pot.

With 228lb ft of torque at 2000rpm, the new powerplant pulls heartily from low revs and reaches its 6200rpm cut-out without strain. Its best work, however, is done through the mid-range, where a combination of forced induction and direct injection technology provide impressive flexibility.

The new engine comes mated to a standard six-speed manual gearbox, although most buyers will opt for the seven-speed automatic – as fitted to our test car. Despite the inclusion of all the fuel-saving technology seen on other new Mercedes-Benz models – standard stop-start, brake energy recuperation and a disengaging alternator – the SLK’s steering retains electro-hydraulic assistance, and at just 2.2 turns lock to lock it’s a good deal quicker than before.

But despite all the hype, the new SLK really doesn’t deliver the leap in sportiness Mercedes led us to expect. It’s well balanced with good body control, but it just doesn’t engage or reward the driver in quite the same way as some of its rivals.

In a broader sense, though, it still feels very accomplished. At a steady high-speed cruise the SLK250 has impressive refinement, and ride quality is excellent. The new model receives variable damping control, and in comfort mode it is surprisingly supple. A stiff body structure, which incorporates a new cross-member located behind the seats, provides the basis for the smooth progress.

Should I buy one?

So while there are more overtly sporting roadsters, few can claim to match the new SLK’s impressive breadth of dynamic abilities. Which means that if the idea of a junior SL takes your fancy, you’re going to like the new SLK a lot.

Greg Kable


Mercedes SLK 250 - Road Test First Drive - Autocar.co.uk


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Edmunds: 2012 Mercedes-Benz SLK350 First Drive


Island vacations are usually not our thing, but while driving the redesigned 2012 Mercedes-Benz SLK350 around Tenerife, the largest of the Canary Islands, we have a change of heart. Tenerife's coastline is jammed with mega beach resorts, most of them packed with German tourists. But hidden away from the tropical beaches we find Mount Teide, the third largest volcano in the world, and home to some really good driving roads.

Earlier Mercedes-Benz SLK-Class convertibles weren't known for their abilities on back roads, and we certainly wouldn't tell you that the third generation of Benz's baby hardtop convertible is some kind of Boxster substitute. However, the 2012 Mercedes-Benz SLK350 is capable in its own way, and we easily dodge the occasional tourist in a rental minicar. More impressive than the 2012 Mercedes-Benz SLK350's hatchback avoidance capability, though, is its out-and-out refinement. It offers a level of ride compliance that eludes its main competition, plus a well-designed and versatile retractable hardtop.

Still Small and a Bit Sportier
An SLS-inspired nose identifies the latest incarnation of the Mercedes-Benz SLK-Class. It's enough to make the locals gawk, although it's hardly a radical departure from the previous design. Underneath its evolved bodywork there's a new chassis based on the latest W204 version of the C-Class platform architecture. This is still a much smaller car than the C-Class sedan, as the 2012 SLK retains the outgoing model's 95.7-inch wheelbase. The SLK350's track grows barely an inch to 61.4 inches in front and 61.8 inches in back. It's also 1.2 inches longer from its snub nose to its shapelier tail and just over half an inch wider at 71.3 inches. The curb weight has edged up about 80 pounds.


The basic suspension design is the same as before, with struts and a couple lower links in front and a multilink rear. One improvement, says Dr. Rudiger Rütz, senior manager of driving dynamics, is a more direct-motion ratio for the 2012 SLK's slightly thicker rear stabilizer bar to help reduce body roll.

Mercedes engineers also increased both compression and rebound damping, and U.S. models will have our European-spec SLK350 tester's optional adaptive dampers as standard. Additionally, all U.S.-bound 2012 Mercedes-Benz SLKs will have a sport-tuned suspension calibration, while the standard European setup will be less aggressive and ride slightly higher. Eighteen-inch wheels are standard, and they'll be fitted with Continental ContiSportContact 5 tires measuring 225/40R18 front and 245/35R18 rear.

Adapts to Its Environment
The 2012 SLK convertible retains its predecessor's passive variable-ratio steering, which simply uses gear teeth that are variably spaced on the steering rack. The on-center ratio is 14.5:1, and it quickens by a total of 30 percent by the time you reach full lock. It works particularly well on Tenerife's tight mountain passes, tidying up our inputs in decreasing-radius turns.

With direct injection added, the 3.5-liter V6 is finally good enough to justify the SLK's price tag.
The brake rotors are larger this year, with 13.5-inch discs up front and 11.8-inch discs in back (versus 13 and 11.4, respectively, in 2011). Pedal feel is excellent as we hammer around some tight winding roads.

A new cornering brake control system is new to the SLK-Class for 2012. We notice it working through those same tight corners as it brakes the inside rear wheel to bring our SLK350's nose around as we get back on the throttle. Of course, there's still a lot of weight up front, so if you start driving like you're not on vacation, you'll eventually get noticeable understeer.

Dr. Rütz tells us, "The optimal SLK for driving is the SLK250 with the 18-inch wheel/tire package." It may only have a 201-horsepower turbocharged and direct-injected 1.8-liter four-cylinder engine, but the SLK250 is nearly 100 pounds lighter, he notes. Unfortunately, it's the SLK we never got a chance to drive.

Better V6, Same Seven-Speed Automatic
It's OK, though, because with the adoption of direct injection, the 3.5-liter V6 is finally good enough to justify the SLK350's price tag. The horsepower gain is slight — 302 at 6,500 rpm versus 300 for 2011 — but the torque comes together earlier and lasts longer. Formerly, it peaked at 265 pound-feet at 4,900 rpm, and now you have 273 lb-ft from 3,500-5,250 rpm.

Although Mercedes isn't predicting any improvement in 0-60-mph acceleration (5.4 seconds is the claim), this V6 is more likable on an unquantifiable level. It sounds sweet and feels responsive as we merge onto Tenerife's coastal loop highway. With the ample midrange torque, we scarcely notice the lower redline, now 6,800 rpm instead of 7,200. Mercedes engineers will make one key modification to the direct-injected V6 for the U.S. market: The European version uses stratified-charge combustion in low-load situations up to 3,800 rpm. Ours will not, and it'll be 10 percent less fuel-efficient as a result. Mercedes engineers tell us it's because of the higher sulfur content in U.S. gasoline, which would destroy the NOx catalyst on the stratified-charge V6.


A seven-speed automatic transmission drives the rear wheels of every 2012 Mercedes-Benz SLK350; if you're among the three people in America who desire a manual-shift SLK, wait for the SLK250. Gear ratios are unchanged on the SLK350's seven-speed, though the final drive is slightly taller at 3.07:1 versus 3.27 previously. Engineers have made various improvements to this transmission to reduce torque-converter slip and frictional losses. Our Euro-spec test car's transmission has an additional electric oil pump to lubricate the clutches when the start-stop function engages in Eco mode. Start-stop is a nonintrusive affair in the SLK350, but it doesn't matter: No U.S.-bound SLK will have the start-stop feature.

Even so, our 2012 Mercedes-Benz SLK350 will consume less fuel than the 2011 model. Mercedes predicts a 20 city/29 highway mpg rating compared to 18/26 on the 2011 SLK350. On the flip side, the seven-speed will serve up some pretty aggressive downshifts in Sport mode, but will not rev-match them like the dual-clutch gearbox in the BMW Z4.

Magic Roof, Clement Cabin
Mercedes will offer three different roof options on the 2012 Mercedes-Benz SLK350 convertible. If you're straitlaced and frugal, there's the standard, all-metal retractable roof. There are two options on top of that: a sun-reflecting, panoramic glass roof, and what Mercedes calls its Magic Sky Control roof, which lets you create your own partial solar eclipse in the car. Of course, it's not magic at all, but a real-life application of a plate capacitor: On the SLK, a bunch of crystals are suspended in fluid between two glass panels. When you apply a 120-watt charge to the unit, the crystals align and allow sunlight to pass through. Cut the electricity and the crystals disperse randomly, partially blocking the transmission of light and, on warm days, reducing air-conditioner load.


As the rain becomes a downpour, we raise the roof on our 2012 Mercedes-Benz SLK350 and immediately find ourselves talking to our passenger about absolutely nothing just to fill the uncomfortable silence — it's that quiet. We drop the roof again, even though it's barely 50 degrees, because between the AirScarf system (which we've determined is overkill if you've donned an analog scarf), the industrial seat heaters and the fixed-glass wind blocker, you can basically change your climate to suit.

Our car did not have the new Airguide pivoting wind-blocker panels, but if you have a magic roof and a simulated scarf, you might as well have the wind blocker do your bidding as well.

For a Car Guy's Day Off
The 2012 Mercedes-Benz SLK350 goes on sale in the U.S. this June priced within 2 percent of the 2011 model, we're told, and will be followed by the SLK250 in February 2012 (it replaces the SLK300) and, later in 2012, the SLK55 AMG (nope, not the SLK63).

So we'll have to wait awhile for the V8 version, but for now this new SLK handles better than its predecessor, accelerates with more fervor and offers yet more of the cutting-edge amenities that made it the original 365-day convertible. No, the SLK350 isn't the most engaging two-seat convertible in the world, but it's one of the most comfortable. It's not quite a full GT, yet it's certainly more than a minimalist roadster.

That might sound like faint praise, but this is a niche vehicle. Mercedes sold fewer than 2,000 SLKs in the U.S. in 2010, so chances are good that the company will find at least that many buyers with this updated car. They won't be giving up their Boxsters this time either, but they will be getting a car that makes an everyday drive feel like being on vacation.

Edmunds attended a manufacturer-sponsored event, to which selected members of the press were invited, to facilitate this report.



- 2012 Mercedes-Benz SLK350 First Drive
 
Sounds funny but can't understand a word. :D LOL What is he explaining between 2:06-2:35?
 
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Weak link is the gearbox, which is odd given that it's been receiving great reviews in other recent models. I'm sure MB could sort it out with a software update.

Seems like the SLK is certainly not the sportiest in the class, but is the most complete all rounder.
 

Mercedes-Benz

Mercedes-Benz Group AG is headquartered in Stuttgart, Germany. Established in 1926, Mercedes-Benz Group produces consumer luxury vehicles and light commercial vehicles badged as Mercedes-Benz, Mercedes-AMG, and Mercedes-Maybach. Its origin lies in Daimler-Motoren-Gesellschaft's 1901 Mercedes and Carl Benz's 1886 Benz Patent-Motorwagen, which is widely regarded as the first internal combustion engine in a self-propelled automobile. The slogan for the brand is "the best or nothing".
Official website: Mercedes-Benz (Global), Mercedes-Benz (USA)

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