- Combustion principle: four-stroke petrol (with manifold injection; emission control system with closed-loop 3-way catalyst as an option, from 09.1986 as standard)
- Configuration: front, longitudinal; vertical
- Engine type: M 103 E 26 / 103.941
- Number of cylinders / arrangement: 6 / in-line; 15° inclination to the right
- Bore x Stroke: 82.9 x 80.25 mm
- Total displacement: 2599 cc (tax classification: 2548 cc)
- Compression ratio: 9.2
- Rated output: 166 hp / 122 kW (with catalyst 160 hp / 118 kW) at 5800 rpm
- Rated torque: 228 Nm (with catalyst 220 Nm) at 4600 rpm
- Number of valves / arrangement: 1 intake, 1 exhaust / V-shaped overhead
- Valve operation: 1 overhead camshaft
- Camshaft drive: single roller chain
- Fuel system: manifold injection, mechanically-electronically controlled (Bosch KE-Jetronic)
- Fuel tank: position / capacity: above the rear axle / 90 l
- Frame design: steel unit body
- Front-wheel suspension: double wishbone
- Rear-wheel suspension: semi-trailing arm axle (hydropneumatic level control optional)
- Front springs: coil springs, supplementary rubber suspension, torsion bar stabiliser
- Rear springs: coil springs, supplementary rubber suspension, torsion bar stabiliser
- Shock absorber front/rear: gas-pressure shock absorbers
- Steering: recirculating-ball power steering
- Brake system (foot brake): hydraulic dual-circuit brake system with vacuum booster, antilock system optional (from 09.1986 as standard); disc brakes front (internally ventilated) and rear
- Parking brake (hand brake): mechanical (foot-operated), acting on rear wheels
- Wheels: sheet-steel wheels (light-alloy wheels optional)
- Wheel rims: 7 J x 15 H 2
- Tires: 205/65 R 15 93 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. 3.86; II. 2.18; III. 1.38; IV. 1.0; V. 0.80; R. 4.22
- Final drive ratio: 3.46
- Maximum speed: 205 km/h (with catalyst 200 km/h)
- Acceleration 0-100 km/h: 10.2 s (with catalyst 10.5 s)
- Fuel consumption: 7.4 / 9.6 / 13.8 l (with catalyst 7.7 / 10.1 / 14.3 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: 3.46
- Maximum speed: 200 km/h (with catalyst 195 km/h)
- Acceleration 0-100 km/h: 10.5 s (with catalyst 10.9 s)
- Fuel consumption: 8.8 / 11.0 / 13.3 l (with catalyst 9.1 / 11.5 / 13.8 l)
- by Guideline: 80/1268/EEC: figures apply to 90 km/h / 120 km/h / urban cycle
- Wheelbase: 2930 mm
- Front / rear track: 1555 / 1527 mm
- Length: 5020 mm
- Width: 1820 mm
- Height: 1437 mm
- Kerb weight: 1520 kg; from 09.1987: 1570 kg
- by Guideline: DIN 70020 (ready to drive, including fuel, spare wheel and tool kit)
- Gross weight: 2040 kg; from 09.1987: 2090 kg
- Units produced: 20,836
- Prices: 09.1985: DM 50,673.00
12.1985: DM 51,585.00
09.1986: DM 56,373.00
06.1987: DM 57,969.00
02.1988: DM 59,337.00
09.1988: DM 61,047.00
02.1989: DM 62,301.00
01.1990: DM 64,068.00
10.1990: DM 66,177.00