Mercedes-Benz SL-Class

Mercedes-Benz SL-Class
Overview
Manufacturer Daimler-Benz (1954-1998)
DaimlerChrysler (1999-2007)
Daimler AG (2007-present)
Production 1954–present
Assembly Bremen, Germany
Santiago Tianguistenco, Mexico
Body and chassis
Class Sports car
Body style 2-door coupe
2-door roadster
Layout FR layout
Related Mercedes-Benz E-Class
Mercedes-Benz S-Class
Mercedes-Benz SLK-Class
Chronology
Predecessor Mercedes-Benz SSK
Mercedes-Benz 540K

The Mercedes-Benz SL-Class is a grand touring car manufactured by Mercedes since 1954. The designation SL derives from the German Sportlich-Leicht, (English: Sport Lightweight). The original idea was suggested by American importer Max Hoffman, who perceived a market for a toned-down Gran Prix car tailored to affluent performance enthusiasts in the booming post-war American market, which remains the primary market for the vehicles.

The SL designation was first applied to the 300 SL, often referred to as the "Gullwing" due to its gullwing or upward-opening doors.

The term SL refers to the marketing variations of the vehicle, including the numerous engine configurations spanning six design generations.

W198 and W121 (1954–1963)

First generation

Mercedes-Benz 300 SL (W198)
Overview
Production 1954–1963
Body and chassis
Platform Mercedes-Benz W121 BII (190 SL)
Mercedes-Benz W198 (300 SL)
Powertrain
Engine 1.9 L M121 I4
3.0 L M198 I6
Transmission 4-speed manual
Dimensions
Wheelbase 2,400 mm (94.5 in)
Length 4,520 mm (178.0 in)
Width 1,790 mm (70.5 in)
Height 1,300 mm (51.2 in)

The 300 SL was introduced in 1954 in coupé form, featuring gullwing doors. The 300 SL roadster succeeded the coupé in 1957. The four-cylinder 190 SL was more widely produced with 25,881 units, starting in 1955. Cars of the open SL-Class were available as a coupe with a removable hardtop or as a roadster with convertible soft top or with both tops. Production for the 190 SL and 300 SL ended in 1963.

W113 (1963–1971)

Second generation
Overview
Production 1963–1971
Body and chassis
Platform Mercedes-Benz W113
Powertrain
Engine 2.3 L M127.II I6
2.5 L M129.II I6
2.8 L M130 I6
Transmission 4-speed automatic
4-speed manual
5-speed manual (ZF)
Dimensions
Length 4,285 mm (168.7 in)
Width 1,760 mm (69.3 in)
Height 1,305 mm (51.4 in)
1969 Mercedes-Benz 280 SL roadster (Australia)

Next came the SL-Class 230 SL, a new design with a 2.3-litre mechanically fuel injected six cylinder engine. It featured a low waistline and big curved greenhouse windows, and a Coupe Roadster with detachable hardtop, whose distinctive roofline earned the nickname "pagoda top." The design was by Paul Bracq. Around 1967, the engine received a displacement increase and the model became known as the 250 SL. Within a year the engine displacement was increased for the final time and the model designation became 280 SL. Beginning with later versions of the 250 SL changes were made to dashboard padding, switches and knobs, door pockets (US models only) and steering wheel. In addition, on the 230 SL formerly separate centre hub caps and wheel trim rings became full wheel covers.

R107 (1972–1989)

Third generation
Overview
Production 1972–1989
Body and chassis
Platform Mercedes-Benz R107
Powertrain
Engine 2.8 L I6
3.0 L I6
3.5 L V8
3.8 L V8
4.2 L V8
4.5 L V8
5.0 L V8
5.6 L V8
Transmission 3-speed automatic
4-speed automatic
4-speed manual
5-speed manual
Dimensions
Wheelbase 96.7 in (2,456 mm)
Length 180.3 in (4,580 mm)
Width 70.5 in (1,791 mm)
Height 51.1 in (1,298 mm)
Mercedes-Benz 560 SL roadster (Japan)

All updated 86–89 models have the advantages of the more modern 4 pot brakes, larger discs, and suspension derived from the W124 sedan. The body itself is built with a modern paint system designed to improve protection from rust. However this was not effective as models still continued to rust especially around the wheel arches, sills, jacking points, floor and front wings; especially the drill holes on which the mudflaps are mounted and the sides facing the engine bay.

The 300 SL base model was available as standard in a 5-speed manual although very few were sold. The SOHC 6 cylinder M103 is typically considered to have handling advantages with its lighter weight engine.

The 560 SL was only sold in the USA, Canada, Japan, and Australia to compensate the reduced output of the 5.0-litres due to the stricter emission laws in these markets.

R129 (1989–2002)

Fourth generation
Overview
Production 1989–2002
Body and chassis
Platform Mercedes-Benz R129
Powertrain
Engine 2.8 L 193 hp (144 kW) I6
2.8 L 204 hp (152 kW) V6
3.0 L 190 hp (142 kW) I6
3.0 L 231 hp (172 kW) I6
3.2 L 231 hp (172 kW) I6
3.2 L 224 hp (167 kW) V6
5.0 L 326 hp (243 kW) V8
5.0 L 306 hp (228 kW) V8
5.5 L 354 hp (264 kW) AMG V8
6.0 L 381 hp (284 kW) AMG V8
6.0 L 394 hp (294 kW) V12
7.0 L 496 hp (370 kW) AMG V12
7.3 L 525 hp (391 kW) AMG V12
Transmission 5-speed automatic
4-speed automatic
5-speed manual
Dimensions
Wheelbase 99.0 in (2,515 mm)
Length 1997–2001: 177.1 in (4,498 mm)
1989–1996: 176.0 in (4,470 mm)
1992–96 V12: 178.0 in (4,521 mm)
Width 71.3 in (1,811 mm)
Height 1992–2001: 51.3 in (1,303 mm)
1989–1991: 50.7 in (1,288 mm)
Mercedes-Benz SL 320 (France)

The 1990 Mercedes SL base model was the 228 hp (170 kW) 3.0-litre inline 6 300 SL version in the US. In Europe the base model was the 190 hp (140 kW) 3.0-litre inline 6 300 SL with 12 valves, and the 228 hp (170 kW) 3.0-litre inline 6 with 24 valves is known as the 300 SL 24 . But it was the 322 hp (240 kW) 500 SL (with a 5.0 L V8 engine) which made the most headlines. The specification was high, with electric windows, mirrors, seats and roof.

The R129 model was the first convertible/roadster to offer the automatic rollbar deployment in event of rollover. The motorist can also manually raise and lower the rollbar should he choose to. This facilitates the clean look of R129 without compromising the occupant's safety.

1994 saw a minor facelift for the SL with changes to the taillamps and white turn signal indicators in the front, and the 300 SL was replaced in Europe by the SL 280 and SL 320 (with 2.8- and 3.2-litre I6 engines). The SL 500 continued with the same powerful engine. A 389 hp (290 kW) 6.0-litre V12 SL 600 topped the range. Introduced in 1993 as the 600 SL, it was re-badged the SL 600 in 1994.

The SL 320 replaced the 300 SL in the United States in 1995, but the SL 280 was not offered. The six-cylinder SLs were dropped from the US line-up in 1998, leaving just the V8 and V12. The SL 500 got a new 302 hp (225 kW) 5.0-litre V8 for 1999.

AMG

1999 Mercedes-Benz SL 73 AMG

The extremely rare SL 73 AMG was sold through AMG in 1995, and at 525 bhp (391 kW) it offered the most powerful V12 engine ever put into an SL up to that time. After a brief gap, the SL 73 was offered again from 1998 to 2001, although the engine was slightly updated to be more reliable. The same 7.3-litre V12 was later used by Pagani in the Zonda. A total of 85 SL 73 AMG roadsters were built. The SL 73 was briefly reintroduced in September 1999 following the SL's end-of-life facelift and a limited number were produced up until December 2001. The facelifted SL 73 is the car that appears in the picture (left).

Even rarer is the SL 70 AMG which was powered by a 7.0-litre V12 engine.

The SL 60 AMG was also extremely rare. Sold through MB from 1996 to 1998, it used a 6.0 litre V8 engine producing between 381 bhp (284 kW) and 384 bhp (286 kW). AMG claimed a 0–62 mph (100 km/h) speed of 5.8 seconds. Its top speed was limited to 155 mph (249 km/h), but with the limiter removed, it was capable of approximately 185 mph (298 km/h). AMG later unofficially admitted that 0–60 mph was closer to 5.0 seconds and the engine produced between 405–410 bhp.

The SL 55 AMG was sold through AMG in the R129 body style from 1998 to 2001 in limited quantity. It was the predecessor of the production R230 SL 55 AMG sold from 2002 to 2008.

Only about 300 cars in the SL-class were customised by AMG prior to 2002.

R230 (2001–2011)

Fifth generation
Overview
Production 2001–2008
Body and chassis
Platform Mercedes-Benz R230
Powertrain
Engine 3.7 L 245 hp (183 kW) V6
5.0 L 308 hp (230 kW) V8
5.4 L 493 hp (368 kW) V8
6.0 L 604 hp (450 kW) V12
Transmission 5-speed automatic
7-speed automatic
Dimensions
Wheelbase 100.8 in (2,560 mm)
Length 178.5 in (4,534 mm)
Width 2005–08: 71.5 in (1,816 mm)
2001–04: 72.0 in (1,829 mm)
Height 51.0 in (1,295 mm)
Mercedes-Benz SL 350 roadster (Australia)

The fifth generation SL was in production between 2001 and 2008. The all-new SL (initially just a 5.0-litre SL 500 version) featured a retractable hardtop (marketed as the Vario Roof) available on the SLK since 1997. This featured a 5.0-litre 302 hp (225 kW) V8, with a 5.4-litre AMG Supercharged V8 appearing in 2002's SL 55 AMG. V12 engines are available in the SL 600 and the limited-production SL 65 AMG and the SL 350 3.7-litre (3724 cc) 18-valve V6 245 hp in some markets.

Facelift (2008–2012)

Fifth Generation Facelift
Overview
Production 2009–2012
Body and chassis
Platform Mercedes-Benz R230
Powertrain
Engine 5.0 L 308 hp (230 kW) V8
5.4 L 493 hp (368 kW) V8
5.5 L 382 hp (285 kW) V8
6.0 L 604 hp (450 kW) V12
6.2 L 518 hp (386 kW) V8
Transmission 5-speed automatic
7-speed automatic
Dimensions
Wheelbase 100.8 in (2,560 mm)
Length 178.5 in (4,534 mm)
Width 2005–08: 71.5 in (1,816 mm)
2001–04: 72.0 in (1,829 mm)
Height 51.0 in (1,295 mm)
Facelift Mercedes-Benz SL 350 convertible (UK)

The R230 SL underwent a significant facelift in 2008 featuring new and revised engines and a new front end that evokes the classic 300 SL with a large grille featuring a prominent 3-pointed star and twin "power domes" on the bonnet, the car also features new headlights with an optional "Intelligent Light System" and a new speed sensitive steering system. The SL 63 AMG replaced the SL 55 AMG.

R231 (2013–present)

Sixth generation
Overview
Production 2012–present
Body and chassis
Platform Mercedes-Benz R231
Powertrain
Engine 3.0 L 333 PS (245 kW) - 362 PS (266 kW) V6 Biturbo
3.5 L 302 hp (225 kW) V6
4.7 L 430 hp (321 kW) V8 turbocharged
5.5 L 429 hp (320 kW) V8 turbocharged
6.0 L 621 hp (463 kW) V12 turbocharged
Transmission 7-speed automatic
Dimensions
Wheelbase 2,585 mm (101.8 in)
Length 4,612 mm (181.6 in)
Width 1,877 mm (73.9 in)
Height 1,315 mm (51.8 in)
Mercedes-Benz SL 350 AMG Line (Germany)

In December 2011, Mercedes-Benz announced the all new SL-Class and was formally launched at the North American International Auto Show in January 2012. The new SL (R231) has been produced for the first time almost entirely from aluminium. The new aluminium body shell weighs around 110 kilograms less than it would using the steel technology from the predecessor. Although the Mercedes-Benz SL-Class has more assistance systems on-board than its predecessor and therefore does actually sacrifice some of the weight saved through the aluminium body shell, the scales show some better figures: the SL 500 (1,785 kg) weighs around 125 kilograms less and the SL 350 (1,685 kg) is 140 kilograms lighter than its predecessor.

New features include the unique FrontBass system (it uses the free spaces in the aluminium structures in front of the footwell as resonance spaces for the bass loudspeakers) and adaptive windscreen wipe/wash system MAGIC VISION CONTROL, which supplies water from the wiper blade as required and depending on the direction of wipe. The R231 is also available with two different suspension systems: semi-active adjustable damping as standard. The optional active suspension system ABC (Active Body Control) is available as an alternative. Both suspension variants are combined with a new electromechanical Direct-Steer system featuring speed-sensitive power steering and a ratio that can be varied across the steering wheel angle and it also reduces the amount of steering required when parking and manoeuvring.

Contrasted with its predecessor, the new generation of the SL is longer and wider. Shoulder room is increased by 37 mm (1.5 in)) and elbow room 28 mm (1.1 in).

Engines

Petrol engines
Model Years Type Power, torque@rpm
SL 350 BlueEFFICIENCY 2012– 3,498 cc (213 cu in) 24V V6 (M 276 DE 35) 306 PS (225 kW; 302 hp)@6500, 370 N·m (273 lb·ft)@3500–5250
SL 500/550 BlueEFFICIENCY 2012– 4,663 cc (285 cu in) 32V V8 biturbo (M 278 DE 46 AL) 435 PS (320 kW; 429 hp)@5250, 700 N·m (516 lb·ft)@1800–3500
SL 63 AMG 2012– 5,461 cc (333 cu in) 32V V8 biturbo (M 157 DE 55 AL) 537 PS (395 kW; 530 hp)@5500, 800 N·m (590 lb·ft)@2000–4500
Performance Package: 564 PS (415 kW; 556 hp)@5500, 900 N·m (664 lb·ft)@2250–3750
0–100 km/h 4.0sec : 402m 198.6 km/h(124.12 mph) 11.8sec : 1000m (1 km) - 255.6 km/h(159.75 mph) (performance pack) @ 21.3sec
SL 63 AMG 2015– 5,461 cc (333 cu in) 32V V8 biturbo (M 157 DE 55 AL) 585 PS (430 kW; 577 hp)@5500, 900 N·m (664 lb·ft)@2000–4500
Performance Package: 585 PS (430 kW; 577 hp)@5500, 900 N·m (664 lb·ft)@2250–3750
0–100 km/h 3.7sec : 402m 202.4 km/h(126.5 mph) 11.6sec : 1000m (1 km) - 264.4 km/h(165.25 mph) @ 20.8sec
SL 65 AMG 2012– 5,980 cc (365 cu in) 36V V12 biturbo (M 279 E 60 AL) 630 PS (463 kW; 621 hp)@4800–5400, 1,000 N·m (738 lb·ft)@2300–4300
0–100 km/h 3.9sec : 402m 203.1 km/h(126.5 mph) 11.8sec : 1000m (1 km) - 267.8 km/h(167.38 mph) @ 20.6sec
SL 400 2015– 3,000 cc (183 cu in) 24V V6 biturbo (AL) 329 hp (245 kW; 334 PS)@5250–6000, 354 lb·ft (480 N·m)@1600–4000

Sales

Calendar year US sales
2001 4,217[1]
2002 13,717
2003 13,318[2]
2004 12,885
2005 10,080[3]
2006 8,462
2007 6,126[4]
2008 5,464
2009 4,025[5]
2010 1,449
2011 4,899[6]
2012 5,233
2013 7,007[7]
2014 5,030
2015 4,060

See also

Lexus LC
BMW 8 Series

References

Notes

Bibliography

General

  • Barrett, Frank (1998). Illustrated Buyer's Guide Mercedes-Benz. Motorbooks International Illustrated Buyer's Guide series (2nd ed.). Osceola, WI, USA: MBI Publishing. ISBN 0760304513. 
  • Bass, Chris (2007). Mercedes-Benz 'Pagoda' 230, 250 & 280 SL: W113 series Roadsters & Coupés, 1963-1971. Essential Buyer's Guide series. Dorchester, Dorset, UK: Veloce Publishing. ISBN 9781845841133. 
  • Bass, Chris (2007). Mercedes-Benz 280-560SL & SLC: W107 series Roadsters & Coupés, 1971 to 1989. Essential Buyer's Guide series. Dorchester, Dorset, UK: Veloce Publishing. ISBN 9781845841072. 
  • Clarke, R.M., ed. (1987). Road & Track On Mercedes 1952-1962. Road & Track Series. Cobham, Surrey, UK: Brooklands Books. ISBN 186982640X. 
  • Clarke, R.M., ed. (1990). Mercedes SLs & SLCs Gold Portfolio 1971-1989. Road Test Portfolio Series. Cobham, Surrey, UK: Brooklands Books. ISBN 1855200104. 
  • Clarke, R.M., ed. (1996). Mercedes SLs Performance Portfolio 1989-1994. Road Test Portfolio Series. Cobham, Surrey, UK: Brooklands Books. ISBN 1855202689. 
  • Clarke, R.M., ed. (2004). Mercedes-Benz SLs & SLCs Ultimate Portfolio 1971-1989. Road Test Portfolio Series. Cobham, Surrey, UK: Brooklands Books. ISBN 1855206773. 
  • Clarke, R.M., ed. (2004). Road & Track Mercedes-Benz SL SLK CLK Portfolio 1990-2003. Road & Track Series. Cobham, Surrey, UK: Brooklands Books. ISBN 1855206536. 
  • Clarke, R.M., ed. (2007). Mercedes AMG Gold Portfolio 1983-1999. Road Test Portfolio Series. Cobham, Surrey, UK: Brooklands Books. ISBN 9781855207455. 
  • Clarke, R.M., ed. (2007). Mercedes AMG Ultimate Portfolio 2000-2006. Road Test Portfolio Series. Cobham, Surrey, UK: Brooklands Books. ISBN 9781855207486. 
  • Clarke, R.M., ed. (2010). Mercedes 230SL - 250SL - 280SL Ultimate Portfolio 1963-1971. Road Test Portfolio Series. Cobham, Surrey, UK: Brooklands Books. ISBN 9781855208865. 
  • Clarke, R.M., ed. (2011). Mercedes-Benz 190SL 300SL 300SLR A Brooklands Portfolio. Road Test Portfolio Series. Cobham, Surrey, UK: Brooklands Books. ISBN 9781855209329. 
  • Engelen, Günter (2002). Mercedes-Benz Personenwagen Band 3 Seit 1986 [Mercedes-Benz Passenger Cars Volume 3 Since 1986]. Stuttgart: Motorbuch Verlag. ISBN 3613021692.  (in German)
  • Hofner, Heribert; Schrader, Halwart (2005). Mercedes-Benz Automobile Band 2: von 1964 bis heute [Mercedes-Benz Automobiles Volume 2: from 1964 to today]. Königswinter, Germany: Heel. ISBN 3898804194.  (in German)
  • Holmes, Mark (2007). Ultimate Convertibles: Roofless Beauty. London: Kandour. pp. 96–99. ISBN 978-1-905741-62-5. 
  • Howard, Colin (2014). Mercedes Benz SL: 1971–2001. Hockley, Essex, UK: CP Press. ISBN 9780957194045. 
  • Howard, Colin (2014). Mercedes Benz SL: 2002–2014. Hockley, Essex, UK: CP Press. ISBN 9780957666443. 
  • Kittler, Eberhard (2000). Typenkompass Mercedes-Benz Band 1. Personenwagen 1945 - 1975 [Typenkompass Mercedes-Benz Volume 1. Passenger Cars 1945 - 1975]. Typenkompass series. Stuttgart: Motorbuch Verlag. ISBN 361302019X.  (in German)
  • Kittler, Eberhard (2002). Typenkompass Mercedes-Benz Band 2. Personenwagen seit 1976 [Typenkompass Mercedes-Benz Volume 2. Passenger Cars since 1976]. Typenkompass series. Stuttgart: Motorbuch Verlag. ISBN 3613022095.  (in German)
  • Koehling, Bernd S. (2013). Mercedes-Benz, The modern SL cars: From the R107 to the R231. CreateSpace. ISBN 9781484108246. 
  • Koehling, Bernd S. (2014). Mercedes-Benz, The early SL cars: From the 300SL and 190SL to the 230SL-280SL (2nd ed.). CreateSpace. ISBN 9781484180563. 
  • Kornblatt, Myles (2014). Mercedes W113: The Complete Story. Crowood AutoClassic Series. Ramsbury, Marlborough, UK: The Crowood Press. ISBN 9781847976956. 
  • Larimer, Fred (2004). Mercedes-Benz Buyer's Guide: Roadsters, Coupes, and Convertibles. St. Paul, MN, USA: MBI Publishing. ISBN 0760318115. 
  • Long, Brian (2010). Mercedes-Benz SL & SLC 107 Series 1971 to 1989. Dorchester, Dorset, UK: Veloce Publishing. ISBN 9781845842994. 
  • Long, Brian (2011). Mercedes-Benz SL W113 Series 1963 to 1971. Dorchester, Dorset, UK: Veloce Publishing. ISBN 9781845843045. 
  • Long, Brian (2013). Mercedes-Benz SL R129 Series 1989 to 2001. Dorchester, Dorset, UK: Veloce Publishing. ISBN 9781845844486. 
  • Long, Brian (2015). Mercedes-Benz SL R230 Series 2001 to 2011. Dorchester, Dorset, UK: Veloce Publishing. ISBN 9781845847470. 
  • Niemann, Harry (2006). Personenwagen von Mercedes-Benz: Automobillegenden und Geschichten seit 1886 [Passenger Cars from Mercedes-Benz: Automobile Legends and Stories since 1886]. Stuttgart: Motorbuch Verlag. ISBN 3613025965.  (in German)
  • Noakes, Andrew (2004). Mercedes SL Series: The Complete Story. Crowood AutoClassic Series. Ramsbury, Marlborough, UK: The Crowood Press. ISBN 9781861266736. 
  • Oswald, Werner (2001). Mercedes-Benz Personenwagen Band 2 1945–1985 [Mercedes-Benz Passenger Cars Volume 2 1945–1985]. Stuttgart: Motorbuch Verlag. ISBN 3613021684.  (in German)
  • Schlegelmilch, Rainer W.; Lehbrink, Hartmut; von Osterroth, Jochen (2013). Mercedes (revised ed.). Königswinter, Germany: Ullmann Publishing. ISBN 9783848002672. 
  • Taylor, James (1985). Mercedes-Benz since 1945: A Collector's Guide. Volume 1: The 1940s and 1950s. Croydon, UK: Motor Racing Publications. pp. 8–24, 63–76, 103–136, 139–144. ISBN 0900549955. 
  • Taylor, James (1985). Mercedes-Benz since 1945: A Collector's Guide. Volume 2: The 1960s. Croydon, UK: Motor Racing Publications. pp. 9–26, 73–84, 126–132, 135, 140–141, 143. ISBN 0900549963. 
  • Taylor, James (1986). Mercedes-Benz since 1945: A Collector's Guide. Volume 3: The 1970s. Croydon, UK: Motor Racing Publications. pp. 9–60, 61–88, 127–129, 132–134, 139–140, 142. ISBN 0900549971. 
  • Taylor, James (1994). Mercedes-Benz since 1945: A Collector's Guide. Volume 4: The 1980s. Croydon, UK: Motor Racing Publications. pp. 8–16. ISBN 0947981772. 
  • Taylor, James (2009). Mercedes-Benz: Cars of the 1990s. Crowood AutoClassic Series. Ramsbury, Marlborough, UK: The Crowood Press. pp. 8–20, 36–51. ISBN 9781847970961. 
  • Taylor, James (2013). Factory-Original Mercedes SL: The originality guide to Mercedes-Benz SL models, 1963-2003. Beaworthy, Devon, UK: Herridge & Sons. ISBN 9781906133436. 

Workshop manuals

  • Mellon, Thomas A, ed. (2001). Chilton Mercedes: Coupes/Sedans/Wagons, 1974-84 Repair Manual. Chilton Total Car Care Series. Radnor, PA, USA: Chilton; Sparkford, UK: Haynes. ISBN 0801990769. 
  • Schauwecker, Steve; Haynes, John H. (1987). Mercedes-Benz 350 and 450: 1971 thru 1980 3.5 and 4.5 liter V8: 350 SL, 450 SE, 450 SEL, 450 SL, 450 SLC: series 107 and 116 models with fuel-injected V8 engines and automatic transmissions. Haynes Service and Repair Manual Series. Sparkford, UK: Haynes. ISBN 0856966983. 
  • Mercedes-Benz Technical Companion. Cambridge, MA, USA: Bentley Publishers. 2005. ISBN 9780837610337. 
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