- Combustion principle: four-stroke petrol (with manifold injection and emission control system with closed-loop 3-way catalyst)
- Configuration: front, longitudinal; vertical
- Engine type: M 103 E 26 / 103.943
- Number of cylinders / arrangement: 6 / in-line; 15° inclination to the right
- Bore x Stroke: 82.9 x 80.2 mm
- Total displacement: 2597 cc
- Compression ratio: 9.2
- Rated output: 160 hp / 118 kW at 5800 rpm
- Rated torque: 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 / 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): hydraulic dual-circuit brake system with vacuum booster and antilock system; 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: 6 1/2 J x 15 H 2
- Tires: 195/65 R 15 91 V
- Driven wheels: 4MATIC all-wheel drive systempermanent rear-wheel drive; front-wheel drive is automatically engaged when needed
- Drivetrain: from power divider (integral part of automatic transmission) via single-piece cardan shaft on front-axle differential and via divided cardan shaft on rear-axle differential (power distribution 35% front, 65% rear)
- Gearing: 5-speed manual transmission
- Availibility: as standard (until 02.1990)
- 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: front/rear: 3.67
- Maximum speed: 205 km/h
- Acceleration 0-100 km/h: 10.4 s
- Fuel consumption: 8.2 / 10.3 / 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 (standard from 02.1990)
- Shifting: central floor gear shift lever
- Clutch: hydraulic torque converter in automatic transmission
- Transmission type: planetary gear system
- Gear ratios: I. 3.87; II. 2.25; III. 1.44; IV. 1.0; R. 5.59
- Final drive ratio: front/rear: 3.29
- Maximum speed: 207 km/h
- Acceleration 0-100 km/h: 10.7 s
- Fuel consumption: 9.0 / 10.9 / 13.4 l
- by Guideline: 80/1268/EEC: figures apply to 90 km/h / 120 km/h / urban cycle
- Wheelbase: 2800 mm
- Front / rear track: 1497 / 1485 mm
- Length: 4740 mm
- Width: 1740 mm
- Height: 1450 mm
- Kerb weight: 1540 kg
- by Guideline: DIN 70020 (ready to drive, including fuel, spare wheel and tool kit)
- Gross weight: 2060 kg
- Units produced: a total of 1943 (from 10.1986)
- Prices: 09.1989: DM 65,094.00 (with manual transmission)
01.1990: DM 66,519.00 (with manual transmission)
02.1990: DM 69,597.00 (with automatic transmission)
10.1990: DM 71,592.00 (with automatic transmission)