- Combustion principle: four-stroke diesel (with indirect injection; emission control device with oxidising catalyst optional from 10.1990)
- Configuration: front, longitudinal; vertical
- Engine type: OM 602 D 25 / 602.912
- Number of cylinders / arrangement: 5 / in line; 15° inclination to the right
- Bore x Stroke: 87.0 x 84.0 mm
- Total displacement: 2497 cc
- Compression ratio: 22.0
- Rated output: 94 hp / 69 kW (with catalyst 90 hp / 66 kW) at 4600 rpm
- Rated torque: 158 Nm at 2600 - 3100 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 5-plunger injection pump
- Fuel tank: position / capacity: above the rear axle / 70 l
- Frame design: steel unit body
- Front-wheel suspension: A-arm / shock-absorber strut
- Rear-wheel suspension: multilink suspension (hydropneumatic level control optional)
- Front springs: coil springs, torsion bar stabiliser
- Rear springs: coil springs, torsion bar stabiliser
- Shock absorber front/rear: gas-pressure shock absorber struts / gas-pressure shock absorbers
- Steering: recirculating-ball power steering
- Brake system (foot brake): hydr. two-cycl. braking device with underpress.19brake energizer and anti-blocking system; disc brakes fore and aft
- Parking brake (hand brake): mechanical (foot-operated), acting on rear wheels
- Wheels: sheet-steel wheels (light-alloy wheels optional)
- Wheel rims: 6 1/2 J x 15 H 2; with sports suspension: 7 J x 15 H 2
- Tires: 195/65 R 15 91 T; with sports suspension: 205/60 R 15 91 H
- Driven wheels: rear wheels
- Drivetrain: divided cardan shaft
- Gearing: 5-speed manual transmission
- Availibility: as standard
- Shifting: central floor gear shift lever
- Clutch: dry single-disc clutch
- Transmission type: change-speed gear
- Gear ratios: I. 3.91; II. 2.17; III. 1.37; IV. 1.0; V. 0.78; R. 4.27
- Final drive ratio: 3.64
- Maximum speed: 175 km/h
- Acceleration 0-100 km/h: 16.5 s
- Fuel consumption: 5.4 / 7.0 / 8.9 l
- by Guideline: 80/1268/EEC: figures apply to 90 km/h / 120 km/h / urban cycle
- Gearing: 4-speed automatic transmission
- Availibility: optional
- Shifting: central floor gear shift lever
- Clutch: hydraulic torque converter in automatic transmission
- Transmission type: planetary gear system
- Gear ratios: I. 4.25; II. 2.41; III. 1.49; IV. 1.0; R. 5.67
- Final drive ratio: 3.07
- Maximum speed: 170 km/h
- Acceleration 0-100 km/h: 17.0 s
- Fuel consumption: 5.9 / 7.7 / 8.8 l
- by Guideline: 80/1268/EEC: figures apply to 90 km/h / 120 km/h / urban cycle
- Wheelbase: 2800 mm
- Front / rear track: 1501 / 1491 mm ("Sportline": 1518 / 1509 mm
- Length: 4740 mm
- Width: 1740 mm
- Height: 1428 mm ("Sportline": 1411 mm)
- Kerb weight: 1390 kg; from 10.1992: 1400 kg
- by Guideline: DIN 70020 (ready to drive, including fuel, spare wheel and tool kit)
- Gross weight: 1910 kg; from 02.1992: 1960 kg; from 10.1992: 1970 kg
- Units produced: a total of 236,811 saloons (from 11.1984)
- Prices: 09.1989: DM 45,144.00
01.1990: DM 46,113.00
10.1990: DM 47,424.00
06.1991: DM 48,792.00
02.1992: DM 50,274.00
10.1992: DM 51,414.00
01.1993: DM 52,382.50