Technical data of Mercedes-Benz 500 SL

Model code R129, in production 1989 - 1992


Engine Eight cylinders, four overhead camshafts
Valve arrangement 4 valves per cylinder, overhead, camshaft adjuster
Swept volume, eff. 4 973 ccm
Rated power as per 80/1269 EEC 240 kW / 326 DIN HP at 5500/min
Top engine speed 6000/min
Bore/stroke 96.5 x 85 mm
Compression ratio 10.0 : 1
Rated torque as per 80/1269 EEC 450 Nm at 4000/min
Mixture formation mechan./electronic CIS-E5
closed-loop 3-way catalyst
Crankcase oil capacit ymax/min 7.5 / 5.5 liters
Total oil capacity when changing oil and filter 8.0 liters
Cooling system Flat tubular aluminum radiator, magnesium fan with fluid coupling, oil cooler

Power output diagram Mercedes-Benz M103 engine

Electrical system

Three-phase alternator 1.4 kW
Battery 12 V 72 Ah

Power transmission

Clutch -
Transmission 4-speed torque converter automatic transmission W 4 A 040
Transmission ratios 3.87-2.27-1.44-1.00-5.59 (automatic)
Rear axle ratio 2.65 (automatic)
Body Integral all-steel body, open, with detachable hardtop


Front axle Shock absorber strut independent front suspension with anti-dive control, coil springs on wishbones, gas-filled shock absorbers, negative steering offset, torsion bar stabilizer
Rear axle Multi-link independent rear suspension with anti-squat and anti-lift controls, coil springs, gasfilled shock absorbers, torsion bar stabilizer, level control all round, and electronically controlled damping system (ADS) available as optional extra
Brake system Hydraulic two-circuit brake system with vacuum brake booster
4-piston fixed caliper disc brakes, ventilated, front
2-piston fixed caliper disc brakes, rear
anti-lock braking system (ABS)
Steering MB power steering, 3 steering wheel revolutions from Lock to Lock
Tire size 225/55 R 16 Z
Rim size 8 J x 16

Dimensions and weights

Wheelbase 2515 mm
Track width 1532 mm front
1521 mm rear
Length 4465 mm
Width 1812 mm
Height 1286 mm (ready for driving with hardtop)
Turning circle 10.75 m
Fuel tank capacity 80 liters
Including reserve approx. 10 liters
Curb weight 1770 kg
Gross vehicle weight 2160 kg
Permissible axle loads 1020 kg front
1160 kg rear
Permissible trailed Load 1500 kg
Power-to-weight ratio 7.37 kg/kw
5.42 kg/ DIN HP

Test data

Top speed 250 km/h (5th speed)
Acceleration 0-100 km/h 6.2 sec
1 km with standing start 25.8 sec

Fuel consumption

Urban cycle 16.6 (liters/100 km)
90 km/h 10.1 (liters/100 km)
120 km/h 12.0 (liters/100 km)
According to regulation 80/1268/EEC

Mercedes-Benz M119 engine

Mercedes-Benz M119 engine At the top end of the new Mercedes-Benz SL range is the model with an eight cylinder engine, 5 litre displacement, four-valve cylinder heads and adjustable inlet camshafts.
Its V8 engine has an output of 240 kW / 326 hp.