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Mercedes-Benz R170 SLK Roadster

At start of the 1990s, after the introduction of their two-seater grand-tourer R129 SL and the Mazda MX-5, Mercedes-Benz set out to create a new compact roadster, slotted below the SL. By late 1991 under Bruno Sacco, the first design sketches were drawn and 12 1:5 scale models being built in the first half of 1992. By the middle of the year, five of them were proposed again in full-scale. In early 1993, the final design was selected and approved by the board, with the German design patent being filed on September 30, 1993. On April 22, 1996, the new production SLK-Class, based on the R170 platform was introduced at the Turin Motor Show. SLK 230 Kompressor launch model became a competitor to the Porsche Boxster and BMW Z3. It was powered by a 193 hp 2.3 L supercharged straight-4 engine and a choice of automatic transmission or 5-speed manual transmission. The SLK was a modern incarnation of the 1950s Mercedes-Benz 190SL by returning to four cylinders and a 94-inch (2,400 mm) wheelbase. Massively successful in its first year, worldwide sales hit 55,000, over double the entire nine-year production of 190SLs, and between 1996 and 2004, over 311,000 SLKs were sold. The very first U.S.-market R170 Mercedes SLK was completed on November 1, 1996 and went on sale in January 1997 for the 1998 model year. The last was completed on April 7, 2004.

 

Vario-roof

 

The roof design developed by Mercedes-Benz consists of a folding steel hard top which is divided in half along an axis at right angles to the direction of travel. Both halves are linked by a kinematic mechanism which is locked securely when the roof is closed. At the touch of a button on the centre console, a hydraulic system with five cylinders controls the fully automatic folding process in which the boot lid is also integrated. It opens by tipping to the rear so that the two roof halves have sufficient freedom of movement to pivot backwards as the vario-roof opens; the roof sections then position themselves one on top of the other, and disappear into the boot. If the roof is to be closed, the same sequence of movements is performed in reverse order. The hydraulic system stows the vario-roof in the upper section of the boot. A plastic roller blind separates it from the luggage space below, an area with a capacity of 145 litres in the first-generation SLK. With the vario-roof closed, the load volume increased to a substantial 348 litres (12.3 cu ft). Two fixed roll-over bars behind the seats worked with the particularly strong A-pillars to form an integrated system offering a high degree of roll-over protection.

 

The steel roof provides added protection, which is normally found in a coupe, but with the enjoyment of a convertible at the same time. The technology was considered advanced as its rivals still had folding cloth tops.

 

2000–2004 Mercedes-Benz SLK

 

In 1997, development on updates to the R170 began and by early 1998, design work on an updated SLK was completed and patented on February 2, 1998.[7] In February 2000, the SLK received a facelift which included new front and rear bumper designs, body-coloured side skirts and the introduction of new wing mirrors incorporating indicators. The range was expanded to include a new entry-level model SLK 200 Kompressor and a new V6 in the SLK 320. Technical improvements included the addition of Electronic Stability Program (ESP) and a new 6-speed manual transmission. A stabilizer bar was added to the rear and the front one was reinforced. A 3.46:1 axle was added for the manual shift SLK, and the fuel tank grew from 12 to 14 gallons.

 

In 2001 a new AMG model was added, with a 349 hp (260 kW) supercharged version of the 3.2 L V6. This SLK 32 AMG was the most powerful R170 SLK, and was a direct rival of the BMW M Roadster and Porsche Boxster S. It was only offered with the newly engineered five-gear "SpeedShift" and boasted 35% quicker automatic shifts. All engines were hand built by AMG by an individual engineer. The SLK32 AMG's engine has two spark plugs per cylinder for maximum combustion and was fitted with an intercooled Lysholm-type twin-screw supercharger. Brakes became 13.15" diameter from 11.8" standard. AMG production ran between Aug 2000 and March 2004. Only 4,333 were built in total, of which 979 were retained for Germany, 2,056 exported to the USA and 263 to the UK.

 

In July 2004 a Special Edition was launched prior to the replacement with the new R171 SLK in 2005. The R170 lived on as the Chrysler Crossfire until 2008, sharing substantial elements of the SLK including engines and interiors.

 

The SLK in the USA

 

The SLK was announced to the USA market on Sept. 7, 1997 as a 1998 model. The SLK was on Car and Driver 's Ten Best list for 1997 and was named “North American Car of the Year” by CAR & DRIVER magazine for 1998. Only in the USA sale of the SL320 (6 cylinder) was ended when the SLK arrived to distance it from the senior SL.

 

[Text from Wikipedia]

 

en.wikipedia.org/wiki/Mercedes-Benz_SLK-Class

 

This miniland-scale Lego Mercedes-Benz R170 SLK Roadster (1996-2004) has been created for Flickr LUGNuts' 92nd Build Challenge, - "Stuck in the 90's", - all about vehicles from the decade of the 1990s.

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Uploaded on July 7, 2015