300 SE Cabriolet
- Combustion principle: four-stroke petrol (with timed manifold injection)
- Configuration: front, longitudinal; vertical
- Engine type: M 189 I / 189.985; from 01.1964: M 189 VI / 189.987
- Number of cylinders / arrangement: 6 / in-line; light-alloy block
- Bore x Stroke: 85 x 88 mm
- Total displacement: 2996 cc (tax classification: 2975 cc)
- Compression ratio: 8.7; from 01.1964: 8.8
- Rated output: 160 hp at 5000 rpm; from 01.1964: 170 hp at 5400 rpm
- Rated torque: 25.6 mkg at 3800 rpm; from 01.1964: 25.4 mkg at 4000 rpm
- Number of valves / arrangement: 1 intake, 1 exhaust / overhead
- Valve operation: 1 overhead camshaft
- Camshaft drive: double roller chain
- Fuel system: manifold injection, mechanically controlled; Bosch 2-plunger injection pump, from 01.1964: Bosch 6-plunger injection pump
- Fuel tank: position / capacity: in the rear / 65 l; from 01.1963: 82 l
- Frame design: floor assembly / steel unit body
- Front-wheel suspension: double wishbone
- Rear-wheel suspension: single-joint swing axle with level control
- Front springs: air-spring bellows, torsion bar stabiliser
- Rear springs: air-spring bellows, torsion bar stabiliser
- Shock absorber front/rear: telescopic shock absorbers
- Steering: recirculating-ball steering
- Brake system (foot brake): hydraulic dual-circuit brake system with vacuum booster, acting on front- and rear wheels; four-wheel disc brakes
- Parking brake (hand brake): mechanical, acting on rear wheels
- Wheels: sheet-steel disc wheels
- Wheel rims: drop-centre rim 5 1/2 K x 13 B; from 08.1965: 6 J X 14 HB
- Tires: 7.50 H 13; from 08.1965: 7.75 H 14 or 195 H 14
- Driven wheels: rear wheels
- Drivetrain: divided cardan shaft
- Gearing: 4-speed automatic transmission
- Availibility: as standard
- Shifting: steering-column selector
- Clutch: hydraulic clutch
- Transmission type: planetary gear system
- Gear ratios: I. 3.98; II. 2.52; III. 1.58; IV. 1.0; R. 4.15
- Final drive ratio: 4.10; 4.08; 3.92; from 01.1964: 3.75; from 08.1965: 3.69; (3.92 optional)
- Maximum speed: 175 km/h (RA 4.10/4.08) resp. 180 km/h (RA 3.92); from 01.1964: 195 km/h (RA 3.75/3.69) resp. 185 km/h (RA 3.92)
- Acceleration 0-100 km/h: 11.5 s; from 01.64: 11.7 s (RA 3.75/3.69) resp. 11.4 s (RA 3.92)
- Fuel consumption: 13 l; from 01.1964: 13 l (RA 3.75 / 3.69) resp. 13.7 l (RA 3.92)
- by Guideline: DIN 70030: consumption, determined at 3/4 of top-speed (not more than 110 km/h), plus 10 %
- Gearing: 4-speed manual transmission
- Availibility: optional
- Shifting: central floor gear shift lever
- Clutch: dry single-disc clutch
- Transmission type: change-speed gear
- Gear ratios: I. 4.05; II. 2.28; III. 1.53; IV. 1.0; R. 3.92
- Final drive ratio: 3.92; later 3.75; from 08.1965: 3.69; 3.92 optional
- Maximum speed: 185 km/h; from 01.1964: 200 km/h (RA 3.75/3.69) resp. 190 km/h (RA 3.92)
- Acceleration 0-100 km/h: from 01.64: 12.5 sec. (RA 3.75/3.69) or 12.4 sec. (RA 3.92)
- Fuel consumption: 13 l; from 01.1964: 11.8 l (RA 3.75 / 3.69) resp. 12.5 l (RA 3.92)
- by Guideline: DIN 70030: consumption, determined at 3/4 of top-speed (not more than 110 km/h), plus 10 %
- Gearing: 5-speed manual transmission ZF S 5-20
- Availibility: optional
- Shifting: central floor gear shift lever
- Clutch: dry single-disc clutch
- Transmission type: change-speed gear
- Gear ratios: I. 3.92; II. 2.22; III. 1.42; IV. 1.0; V. 0.85; R. 3.49
- Final drive ratio: 4.08
- Maximum speed: 200 km/h
- Acceleration 0-100 km/h: 10.9 s
- Wheelbase: 2750 mm
- Front / rear track: 1482 / 1490 mm
- Length: 4880 mm
- Width: 1845 mm
- Height: 1400 mm
- Kerb weight: 1690 kg; from 08.1965: 1715 kg
- by Guideline: DIN 70020 (ready to drive, including fuel, spare wheel and tool kit)
- Gross weight: 2160 kg; from 08.1965: 2185 kg
- Units produced: 708
- Prices: 04.1962: DM 34,750.00 (with automatic transmission)
or DM 33,350.00 (with manual transmission, from 02.1963)
04.1966: DM 35,350.00 (with automatic transmission)
or DM 33,950.00 (with manual transmission)