- Passenger Cars
- Mercedes-Benz Passenger Cars, since 1946
- E-Class Saloons and predecessors
- "Ponton Mercedes", four-cylinder models (W 120, W 121), 1953 - 1959
- 190 D chassis with two-door partial body / W 121 D I, 1958 - 1959
190 D chassis with two-door partial body
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- Design name: W 121 D I
- Type: 121.101
- Production period: 1958 - 1959
- Combustion principle: four-stroke Diesel (with indirect injection)
- Configuration: front, longitudinal; vertical
- Engine type: OM 621 I / 621.910
- Number of cylinders / arrangement: 4 / in-line
- Bore x Stroke: 85 x 83.6 mm
- Total displacement: 1897 cc (tax classification: 1882 cc)
- Compression ratio: 21
- Rated output: 50 hp at 4000 rpm
- Rated torque: 11.0 mkg at 2200 rpm
- Number of valves / arrangement: 1 intake, 1 exhaust / overhead
- Valve operation: 1 overhead camshaft
- Camshaft drive: double roller chain
- Fuel system: indirect injection, mechanically controlled; Bosch 4-plunger injection pump
- Fuel tank: position / capacity: in the rear / 56 l
- Frame design: floor assembly / steel unit body
- Front-wheel suspension: double wishbone
- Rear-wheel suspension: single-joint swing axle
- Front springs: coil springs, torsion bar stabiliser
- Rear springs: coil springs
- Shock absorber front/rear: telescopic shock absorbers
- Steering: recirculating-ball steering
- Brake system (foot brake): hydraulic, acting on front- and rear wheels; four-wheel drum brakes
- Parking brake (hand brake): mechanical, acting on rear wheels
- Wheels: sheet-steel disc wheels
- Wheel rims: drop-centre rim 4 1/2 K x 13
- Tires: 6,70-13
- Driven wheels: rear wheels
- Drivetrain: divided cardan shaft
- Gearing: 4-speed manual transmission
- Availibility: as standard
- Shifting: steering-column shift lever
- Clutch: dry single-disc clutch
- Transmission type: change-speed gear
- Gear ratios: I. 4.05; II. 2.38; III. 1.53; IV. 1.0; R. 3.92
- Final drive ratio: 3.70
- Wheelbase: 2650 mm
- Front / rear track: 1420 / 1460 mm
- Length: 4446 mm
- Width: 1740 mm
- Kerb weight: 985 kg
- by Guideline: chassis with partial body, tank full, not including spare wheel and tool kit
- Gross weight: 2030 kg
- Units produced: 136 chassis with 2- and 4-door partial body, resp.19
- Prices: no list price