page_title: Mercedes-Benz SLK-Class (R171)
section_title: AMG models
hierarchical_section_title: Mercedes-Benz SLK-Class (R171) / AMG models
caption_attribution_description: English: Mercedes-Benz SLK 55 AMG at Stars and Cars 2004 Deutsch: Mercedes-AMG SLK55 (R171) bei Stars and Cars 2004
context_page_description: The second generation Mercedes-Benz SLK, internally designated model R171, is a two-passenger, front-engine, rear-drive, retractable hardtop roadster, unveiled at the 74th Geneva International Motor Show — and manufactured and marketed for model years 2004–2010. Currently in its third generation and manufactured at Mercedes' Bremen plant, the SLK nameplate designates Sportlich, Leicht, and Kurz.
  The R171 features a number of revisions compared to its predecessor, the R170: a 30mm longer wheelbase, increased length and width, 40% increased use of high strength steel, seven-speed automatic transmission, adaptive two-stage airbags, head/thorax sidebags and a revised roof mechanism deployable in 22 seconds with a rotary-pivoting rear window enabling a more compact folded roof stack and trunk storage increased by 63 litres with the roof retracted. Optional features include remote operation of the retractable hardtop as well as an innovative forced air, neck-level heating system integral to the headrests, marketed as Airscarf.
context_section_description: SLK 55 AMG
  0-62 mph (100 km/h) quoted at 4.9 seconds but individuals have reported times of under 4.3 seconds. (Car & Driver Magazine reported 0-60 mph in 4.3 seconds.)
  Increased brake capacity. 345x30mm brake discs (Pre-2008-model-year cars have 6-piston front calipers with perforated and slotted rotors, and 4-piston rear calipers. Later models have a mix of brakes depending on options and market: either the original 6-piston fronts or the 4-piston fronts from the C55.  Mercedes made this change not only to cut costs but also to reduce complaints about brake squeal from customers not used to high performance brakes.)
  Additional engine oil cooler (behind right-hand bumper vents)
  Lowered/stiffened suspension (springs, shocks, sway bars)
  18-inch alloy wheels with 225/40 front and 245/35 rear tyres.
  AMG body kit, with distinctive gills in front bumpers
  Chrome-accented fog lights
  Napa leather interior
  Quad exhaust
  Smoked taillights and [CHMSL]
  2008 facelift included a controller upgrade to the AMG SPEEDSHIFT 7G-TRONIC transmission, shifts 10% faster than previous model.
  SLK 55 Sport/030/P30 (an option package on top of the standard SLK 55 AMG) Developed by the AMG PERFORMANCE STUDIO, AMG performance package adds following:
  Nurburgring suspension
  Improved pads and rotors (currently the only sure way to get the pre-2008 6-piston front brakes and 4-piston rears). AMG high-performance braking system with composite brake discs at the front wheels. Internally ventilated and perforated composite brake discs (360x32mm) with 6-piston fixed calipers at the front. Internally ventilated and perforated brake discs (330x26mm) with 4-piston fixed calipers at the rear
  Carbon fibre interior accents
  AMG 18-inch multi-piece light-alloy wheels in a twin-spoke design, 7.5x18 rim with 225/40R18 tyres at the front and 8.5x18 rim with 245/35R18 tyres at the rear
  AMG performance steering wheel with smaller diameter, flattened lower section and silver-coloured aluminium shift paddles (plus aluminium trim element)
  delimited top speed (which is actually now standard on most SLK 55s)
  As of 2006 AMG has released several new models, but these are not available in all export markets:
  SLK 55 Track Sport
  SLK 55 Asia Cup
  SLK 55 'F1 Safety Car'
caption: Mercedes SLK 55 AMG
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