Mercedes-Benz SLK-Class (R170)

The R170 Mercedes-Benz SLK-Class is the first generation of the Mercedes-Benz SLK-Class range of compact luxury roadsters manufactured by Mercedes-Benz between 1995 and 2004, using a shortened variant of the W202 Mercedes C-Class platform.

With over 300,000 manufactured, the first generation SLK was replaced by the Mercedes R171 SLK in 2004.

The SLK nameplate derives from the roadster's design mission to be sportlich (sporty), leicht (light) and kurz (compact).

Development and launch
The R170 Mercedes SLK is based on the SLK I Concept, presented during Spring of 1994 at the Turin Motor Show, and SLK II Concept, presented during Fall of 1994 at the Paris Motor Show, which is a two-seater roadster concept car that features a folding metal electro-hydraulic roof, dubbed 'vario-roof' by Mercedes, and takes 25 seconds to operate. A German design patent was filed on 30 September 1993, with the final production version of the SLK introduced at the Turin Motor Show on 22 April 1996.

The R170 SLK is based on the W202 C-Class platform, sharing many drivetrain and chassis components, as well as using a shortened version of the floor pan. The wheelbase is also identical to the wheelbase of the 190SL and 300SL, at 2400 mm.

The platform of the R170 Mercedes SLK is also used by the Chrysler Crossfire, which shares 80% of its components with the car.

Equipment
Standard equipment includes power seats, power windows, power steering, dual-zone climate control, dimmable interior mirror, and alloy wheels. Safety features include front and side driver and passenger airbags, anti-lock brakes, and electronic stability control. Models could also be optioned with the AMG body design package, also sometimes called a "sport package" that features body colour side skirts, chromed tailpipes, 17-inch AMG alloy wheels on lower profile performance tires, and a sculpted front apron with black-mesh air intakes. Wider wheels were also available on SLK 230 Kompressor models. Other available options included a 5-speed "Touch Shift" 5G-Tronic automatic transmission, heated seats, xenon headlamps, a premium Bose sound system, a trunk-mounted 6-CD changer, 8-way power seats, and a manually telescoping steering wheel. Many of these options were standard on the SLK 32 AMG.

SLK 200 Kompressor
The SLK 200 Kompressor was exported and sold exclusively to Italy, Netherlands, Portugal, Turkey, and Greece, and was only available with the Getrag five-speed manual transmission. After the 2000 facelift, the SLK 200 Kompressor was introduced to the worldwide market.

Engines
 *Acceleration times are for manual/automatic gearbox 

SLK 32 AMG
The SLK 32 AMG was introduced in 2001, designed to rival the BMW M Roadster and Porsche Boxster S. The car featured the same, though upgraded version of M112 engine as in the SLK 320, but has a helical twin-screw supercharger and water-to-air intercooler.

The SLK 32 AMG introduced Mercedes' new SpeedShift 5G-Tronic (automatic) transmission, that allow for manual shifting of the gears, and faster automatic downshifts before overtaking. There was no manual transmission option available for the SLK 32 AMG.

The SLK 32 AMG features a more angular steering wheel, AMG instrument dials, an updated front and rear bumper with larger air intakes, and larger brakes; from 300 mm, upgraded to 334 mm in diameter. SLK 32 production started from January 2001, to March 2004. A total of 4,333 were produced; 979 were sold in Germany, 2,056 were imported to the US, and 263 to the UK.

1998

 * Passenger airbag will now automatically deactivate if Mercedes-branded child seat is fitted

1999

 * Storage net, automatic-dimming rear view mirrors, and vehicle motion sensing alarm added
 * Introduction of Manual transmission and AMG Sport package options, which included Sport aero body kit, 17" staggered AMG wheels, HD sway bars, and performance exhaust

2000 facelift
Production for facelift models began after February 2000. Major changes include:


 * Exterior design changes including: redesigned front and rear bumpers, a redesigned silver grille and taillights, body-colour painted side-skirts and door handles, integrated indicators in wing mirrors, and stainless steel trim in the exhaust
 * Interior design changes including: a restyled steering wheel and transmission shifter, and more supportive sports seats
 * Naturally-aspirated SLK 200 discontinued, SLK 230 Kompressor engine updated, SLK 320 introduced, and SLK 200 Kompressor now introduced for worldwide market
 * Electronic stability control upgraded
 * The fuel tank volume was increased from 45 litres to 53 litres

2001

 * Six-speed manual transmission introduced, replacing the existing five-speed manual transmission
 * SLK 32 AMG high performance variant introduced

Production volumes
The following are production figures for the R170 SLK:

Awards

 * The R170 Mercedes SLK was on Car and Driver's Ten Best list for 1997.
 * Named ‘North American Car of the Year’ for 1997.