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SL roadsters~of the series 129
Mercedes-Benz type SL 280 |
| Type |
SL 280 |
| Name |
SL 280 |
| Name |
Mercedes-Benz type SL 280 |
| Short name |
SL 280 |
| Model |
R 129 E 28 |
| Production |
since 09.95 |
| Number produced |
in production |
| Comments concerning the production period |
|
| Prices |
09.95: 122.475,00 DM
03.97: 124.200,00 DM |
| Wheelbase |
2515 mm |
| Track rear/front |
1535/1523 mm |
| Length |
4499 mm |
| Width |
1812 mm |
| Height |
1303 mm (with cabriolet top closed) |
| Smallest turning circle |
10,79 m |
| Chassis weight |
| Max. total weight |
2150 kg |
| Max. front axle weight |
1000 kg |
| Max. rear axle weight |
1170 kg |
| Max. load |
320 kg |
| Max. trailer weight braked |
1500 kg |
| Max. trailer weight unbraked |
750 kg |
| Weight empty |
1830 kg |
| According to guideline |
according to guideline EG 92/21 (with driver, 68 kg, and luggage, 7 kg; tank filled 90 % ) |
| Operating method |
four-stroke Otto (w/ manifold-injection and emission control device w/ three-way catalyst) |
| Configuration |
front, parallel; upright |
| Type |
M 104 E 28 / 104.943 |
| No. of cylinder/configuration |
6 / in line; 15ř inclination to the right |
| Bore x stroke |
89,9 x 73,5 mm |
| Total displacement |
2799 ccm |
| Compression ratio |
10,0 |
| Crankshaft bearing |
7 |
| Output |
142 kW / 193 hp at 5500 /min |
| Maximum torque |
270 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; since 06.96: engine control Bosch ME) |
| 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, since 12.96 with brake assistance 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 / 290 mm |
| Wheels |
light-alloy disc wheels |
| Wheels rims |
8 J x 16 H 2 |
| Tyres |
225/55 ZR 16 |
Skrzynie biegów tego modelu (gearbox and performance):
SL roadsters~of the series 129
Mercedes-Benz type SL 280 |
| Gearbox |
5-speed gear shift |
| Availability |
Series |
| Shifting |
Feed control |
| Clutch |
Single-plate dry clutch |
| Type of gearbox |
Pinion change gear |
| Synchromesh gears |
I - V |
| Gear transmission |
I. 3,86; II. 2,18; III. 1,38; IV. 1,0; V. 0,80; R. 4,22 |
| Differential ratio |
3,92; from 06.96: 3,89 |
| Maximum speed |
230 km/h |
| Accelerations |
10,2 s |
| Comments |
Acceleration with shifting through from 0 - 100 km/h; loaded with 2 persons |
| Fuel consumption |
8,2/9,9/15,0 l |
| acc. to guideline |
80/1268/EWG; values for 90 km/h / 120 km/h / city cycle |
SL roadsters~of the series 129
Mercedes-Benz type SL 280 |
| Gearbox |
4-speed autom. gear shift |
| Availability |
by request (until 05.96) |
| Shifting |
Switch lever in car center |
| Clutch |
hydr. torque converter in autom. gear |
| Type of gearbox |
Planet gear |
| Synchromesh gears |
|
| Gear transmission |
I. 4,25; II. 2,41; III. 1,49; IV. 1,0; R. 5,67 |
| Differential ratio |
3,27 |
| Maximum speed |
225 km/h |
| Accelerations |
9,9 s |
| Comments |
Acceleration with shifting through from 0 - 100 km/h; loaded with 2 persons |
| Fuel consumption |
8,9/10,5/13,6 l |
| acc. to guideline |
80/1268/EWG; values for 90 km/h / 120 km/h / city cycle |
SL roadsters~of the series 129
Mercedes-Benz type SL 280 |
| Gearbox |
5-speed autom. gear shift |
| Availability |
by request (until 05.96) |
| Shifting |
Switch lever in car center |
| Clutch |
hydr. torque converter in autom. gear |
| Type of gearbox |
Planet gear |
| Synchromesh gears |
|
| Gear transmission |
I. 3,87; II. 2,25; III. 1,44; IV. 1,0; V. 0,75; R. 5,59 |
| Differential ratio |
3,69 |
| Maximum speed |
225 km/h |
| Accelerations |
9,9 s |
| Comments |
Acceleration with shifting through from 0 - 100 km/h; loaded with 2 persons |
| Fuel consumption |
8,3/9,9/13,8 l |
| acc. to guideline |
80/1268/EWG; values for 90 km/h / 120 km/h / city cycle |
SL roadsters~of the series 129
Mercedes-Benz type SL 280 |
| Gearbox |
5-speed autom. gear shift with electron. control |
| Availability |
by request (from 06.96) |
| Shifting |
Switch lever in car center |
| Clutch |
hydr. torque converter with slip control clutch |
| Type of gearbox |
Planet gear |
| Synchromesh gears |
|
| Gear transmission |
I. 3,87; II. 2,25; III. 1,44; IV. 1,0; V. 0,75; R. 5,59 |
| Differential ratio |
3,67 |
| Maximum speed |
225 km/h |
| Accelerations |
9,9 s |
| Comments |
Acceleration with shifting through from 0 - 100 km/h; loaded with 2 persons |
| Fuel consumption |
8,4/10,2/13,9 l |
| acc. to guideline |
80/1268/EWG; values for 90 km/h / 120 km/h / city cycle |
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