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SL roadsters~of the series 129
Mercedes-Benz type SL 320 |
| Type |
SL 320 |
| Name |
SL 320 |
| Name |
Mercedes-Benz type SL 320 |
| Short name |
SL 320 |
| Model |
R 129 E 32 |
| Production |
02.93/06.93 - 08.95 |
| Number produced |
not documented separately |
| Comments concerning the production period |
begin of production - pre-production batch / main production - end of production |
| Prices |
05.93: 125.925,00 DM
06.94: 127.075,00 DM
08.94: 129.317,50 DM |
| Wheelbase |
2515 mm |
| Track rear/front |
1535/1523 mm |
| Length |
4470 mm |
| Width |
1812 mm |
| Height |
1303 mm (with cabriolet top closed) |
| Smallest turning circle |
10,75 m |
| Chassis weight |
| Max. total weight |
2170 kg |
| Max. front axle weight |
1020 kg |
| Max. rear axle weight |
1170 kg |
| Max. load |
390 kg |
| Max. trailer weight braked |
1500 kg |
| Max. trailer weight unbraked |
750 kg |
| Weight empty |
1780 kg |
| According to guideline |
according to DIN 70020 (with fuel, spare wheel and tool equipment) |
| Operating method |
four-stroke Otto (w/ manifold-injection and emission control device w/ three-way catalyst) |
| Configuration |
front, parallel; upright |
| Type |
M 104 E 32 / 104.991 |
| No. of cylinder/configuration |
6 / in line; 15ř inclination to the right |
| Bore x stroke |
89,9 x 84,0 mm |
| Total displacement |
3199 ccm |
| Compression ratio |
10,0 |
| Crankshaft bearing |
7 |
| Output |
170 kW / 231 hp at 5600 /min |
| Maximum torque |
315 Nm at 3750 /min |
| No. of valves/configuration |
2 intake, 2 exhaust / V-shaped overhead |
| Valve operation |
2 top camshafts (intake camshaft adjustable) |
| Camshaft drive |
duplex roller-type chain |
| Mixture formation |
microprocessor-controlled injection system with~hot-film air-mass sensor (HFM) |
| Cooling |
water cooling / pump; 11,0 l water |
| Lubrication |
pressure circulation lubrication / 7,5 l oil |
| Electric system |
12 V |
| Battery |
100 Ah / in the boot |
| Dynamo |
three-phase AC / 1540 W |
| Starter motor |
electrical / 1,7 kW |
| Ignition |
ignition mapping control |
| Fuel tank |
above the rear axle / 80 l |
| Fuel supply |
electric supply pump |
| Driven whells |
rear wheels |
| Power transmission |
divided cardan shaft |
| Frame desing |
self-supporting all-steel body |
| Wheel suspension front |
triangle-wishbone / shock-absorber strut, on demand with level control |
| Wheel suspension rear |
multilink suspension, on demand with hydropneumatic level control |
| Suspension front |
coil springs, torsion bar stabilizer |
| Suspension rear |
coil springs, torsion bar type stabilizer |
| Damper |
gas-pressure shock absorber struts / gas-pressure damper |
| Steering |
ball-and-nut power steering |
| Steering transm ratio |
15,53:1 / 3 steering wheel turns |
| Breaking system |
braking system |
| Breaking system |
hydraulic dual-circuit braking system with vacuum-operated brake servo unit and antilock device;~disc brakes front (intern. ventilated) and rear |
| Parking breake |
parking brake |
| Parking breake |
mechanical (foot-operated), effective on rear wheels |
| Diamatre |
brake discs front / rear: 300 / 278 mm |
| Wheels |
light-alloy disc wheels |
| Wheels rims |
8 J x 16 H 2 |
| Tyres |
225/55 ZR 16 |