Technical highlights of the CL-Class and its predecessor series

300 S Coupé, 300 Sc Coupé, W 188 series (1952 to 1958)
Single-joint swing axle with low pivot point (300 Sc)
Direct gasoline injection (300 Sc)

220 Coupé, W 187 series (1953 to 1955)
Newly designed six-cylinder engine with overhead camshaft
Safety wedge-pin door lock to prevent the doors from bursting open
Heater blower available
Duplex drum brakes at the front

220 S Coupé, 220 SE Coupé, W 180 / W 128 (1956 to 1960)
Self-supporting three-box body
Front wheel suspension with subframe
Single-joint swing axle with low pivot point
Brake drums with “turbo cooling”
Hydraulic-automatic “Hydrak” clutch

220 SEb Coupé, 250 SE Coupé, 300 SE Coupé, 280 SE Coupé, 280 SE 3.5 Coupé, W 111 / W 112 series (1961 to 1971)
Safety passenger cell with crumple zones (front and rear)
Padded steering wheel
Wedge-pin door locks
Disc brakes (300 SE Coupé: all-round; 220 SEb Coupé: front wheels)
Dual-circuit brake system with disc brakes on all four wheels
(300 SE Coupé)
Three-point seat belts
Four-speed automatic transmission
Air suspension (300 SE Coupé)

280 SLC, 350 SLC, 450 SLC, 450 SLC 5.0, 380 SLC, 500 SLC, C 107 (1981 to 1991)
SL models from the R 107 series as technical basis
Many passive safety measures
Special wind deflection profiles on A-pillars
Profiled rear lights for improved illumination and visibility

380 SEC, 500 SEC, 420 SEC, 560 SEC, C 126 (1981 to 1991)
Driver airbag and belt tensioner
Front passenger airbag from 1985
Automatic locking differential
Acceleration skid control (ASR)
Drag coefficient of Cd = 0.34 (560 SEC: Cd = 0.35)

500 SEC/S 500 Coupé/CL 500, 600 SEC/S 600 Coupé/CL 600, S 420 Coupé/CL 420, C 140 (1992 to 1998)
Electronic Stability Program ESP®
Brake Assist (BAS)
Xenon headlamps with dynamic headlamp range adjustment
Tempomat cruise control operating down to 30 km/h
Side airbags as standard
Seat occupancy sensor for the front passenger’s seat
Adaptive damping system (ADS)
Front-axle subframe
Double insulating glazing
Speed-sensitive power steering
Side airbags

CL 500, CL 600, CL 55 AMG, CL 63 AMG, CL 65 AMG, C 215 (1999 – 2006)
Belt tensioners and belt force limiters in the rear
Window airbag
Active Body Control (ABC)
DISTRONIC autonomous intelligent cruise control system
Bi-xenon headlamps with wash/wipe system
Automatic cylinder shut-off
Drag coefficient of Cd = 0.28
Keyless-Go keyless driver authorization system
Active seat ventilation

CL 500, CL 600, CL 63 AMG, CL 65 AMG, CL 500 4MATIC, C 216 series (from 2006)
PRE-SAFE® brake
Anticipatory occupant protection system PRE-SAFE®
Intelligent Light System with five light functions
Newly developed operating concept
Newly developed integral seats
Parking guidance (optional equipment)
4MATIC all-wheel drive for the first time in a large Coupé by Mercedes-Benz
(CL 500 4MATIC, since summer 2008)

Source: Daimler AG