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Limousines of the series 123
Mercedes-Benz type 250 |
| Type |
250 |
| Name |
250 |
| Name |
Mercedes-Benz type 250 |
| Short name |
250 |
| Model |
W 123 V 25 |
| Production |
07.75/04.76 - 12.85 |
| Number produced |
114.796 |
| Comments concerning the production period |
begin of production - pre-production batch / main production - end of production |
| Prices |
01.76: 21.767,10 DM
02.77: 22.755,00 DM
01.78: 22.960,00 DM
04.78: 23.475,20 DM
08.78: 24.169,60 DM
12.78: 24.662,40 DM
05.79: 24.858,40 DM
01.07.79: 25.080,35 DM
16.07.79: 25.515,40 DM
09.79: 26.023,90 DM
03.80: 27.040,90 DM
08.80: 27.549,40 DM
07.81: 28.396,90 DM
09.81: 28.532,50 DM
01.82: 29.312,20 DM
07.82: 30.340,50 DM
07.83: 30.609,00 DM
08.83: 31.578,00 DM
01.84: 32.319,00 DM
09.84: 33.288,00 DM |
| Wheelbase |
2795 mm |
| Track rear/front |
1488/1446 mm |
| Length |
4725 mm |
| Width |
1786 mm |
| Height |
1438 mm |
| Smallest turning circle |
11,25 m; with power steering 11,29 m |
| Chassis weight |
| Max. total weight |
1930 kg |
| Max. front axle weight |
920 kg |
| Max. rear axle weight |
1010 kg |
| Max. load |
520 kg |
| Max. trailer weight braked |
1200 kg; since 1980: 1500 kg |
| Max. trailer weight unbraked |
740 kg |
| Weight empty |
1410 kg |
| According to guideline |
DIN 70020 (with fuel, spare wheel and tool equipment) |
| Operating method |
four-stroke Otto |
| Configuration |
front, parallel; upright |
| Type |
M 123 V 25 / 123.920 |
| No. of cylinder/configuration |
6 / in line |
| Bore x stroke |
86,0 x 72,45 mm |
| Total displacement |
2525 ccm (tax classification: 2492 ccm) |
| Compression ratio |
8,7; since 09.79: 9,0 |
| Crankshaft bearing |
4 |
| Output |
129 hp / 95 kW at 5500 /min;~since 09.79: 140 hp / 103 kW at 5500 /min |
| Maximum torque |
196 Nm at 3500 /min; since 09.79: 200 Nm at 3500 /min |
| No. of valves/configuration |
1 intake, 1 exhaust / overhead |
| Valve operation |
top camshaft |
| Camshaft drive |
simple roller-type chain |
| Mixture formation |
1 double-register-downdraught carburetter Solex 4 A 1 |
| Cooling |
water cooling / pump; 10 l water |
| Lubrication |
pressure circulation lubrication / 6 l oil |
| Electric system |
12 V |
| Battery |
55 Ah / in the engine compartment |
| Dynamo |
three-phase AC / 770 W |
| Starter motor |
electrical / 1,5 kW |
| Ignition |
battery ignition |
| Fuel tank |
above the rear axle / 80 l |
| Fuel supply |
diaphragm pump |
| Driven whells |
rear wheels |
| Power transmission |
divided cardan shaft |
| Frame desing |
self-supporting all-steel body |
| Wheel suspension front |
double wishbone-front axle with torsion bar type stabilizer |
| Wheel suspension rear |
diagonal-swing axle, on demand with hydropneumatic level control |
| Suspension front |
coil springs, suppl. rubber suspension, torsion bar stabilizer |
| Suspension rear |
coil springs, suppl. rubber suspension, torsion bar stabilizer |
| Damper |
hydraulic telescopic damper |
| Steering |
rec.-ball steering; on demand power steerg. (since 08.78 standard) |
| Steering transm ratio |
22,36:1 / 4,3 steering wheel turns; w/ power steering: 16,55:1 / 3,2 |
| Breaking system |
braking system |
| Breaking system |
hydraulic dual-circuit braking system with vacuum-operated brake ~servo unit, since 08.80 on demand with antilock device; disc brakes front and rear |
| Parking breake |
parking brake |
| Parking breake |
mechanical (foot-operated), effective on rear wheels |
| Diamatre |
brake discs front / rear: 278 / 279 mm |
| Wheels |
sheet steel-disc wheels, since 01.78 on demand light-alloy wheels |
| Wheels rims |
5 1/2 J x 14 H 2 |
| Tyres |
175 SR 14 88 S; since 09.79: 175 HR 14 88 H |
Skrzynie biegów tego modelu (gearbox and performance):
Limousines of the series 123
Mercedes-Benz type 250 |
| Gearbox |
4-speed gear shift |
| Availability |
Series (until 04.77) |
| Shifting |
Feed control |
| Clutch |
Single-plate dry clutch |
| Type of gearbox |
Pinion change gear |
| Synchromesh gears |
I - IV |
| Gear transmission |
I. 3,90; II. 2,30; III. 1,41; IV. 1,0; R. 3,66 |
| Differential ratio |
3,69 |
| Maximum speed |
185 km/h |
| Accelerations |
11,3 s |
| Comments |
Acceleration with shifting through from 0 - 100 km/h; loaded with 2 persons |
| Fuel consumption |
9,8/12,1/16,4 l |
| acc. to guideline |
80/1268/EWG; values for 90 km/h / 120 km/h / city cycle |
Limousines of the series 123
Mercedes-Benz type 250 |
| Gearbox |
4-speed gear shift |
| Availability |
Series (from 05.77) |
| Shifting |
Feed control |
| Clutch |
Single-plate dry clutch |
| Type of gearbox |
Pinion change gear |
| Synchromesh gears |
I - IV |
| Gear transmission |
I. 3,98; II. 2,29; III. 1,45; IV. 1,0; R. 3,74 |
| Differential ratio |
3,69; from 10.81: 3,58 |
| Maximum speed |
185 km/h |
| Accelerations |
11,3 s |
| Comments |
Acceleration with shifting through from 0 - 100 km/h; loaded with 2 persons |
| Fuel consumption |
9,8/12,1/16,4 l; from 10.81: 9,0/11,4/14,8 l |
| acc. to guideline |
80/1268/EWG; values for 90 km/h / 120 km/h / city cycle |
Limousines of the series 123
Mercedes-Benz type 250 |
| Gearbox |
5-speed gear shift |
| Availability |
by request (from 10.81) |
| Shifting |
Feed control |
| Clutch |
Single-plate dry clutch |
| Type of gearbox |
Pinion change gear |
| Synchromesh gears |
I - V |
| Gear transmission |
I. 3,82; II. 2,20; III. 1,40; IV. 1,0; V. 0,81; R. 3,71 |
| Differential ratio |
3,58 |
| Maximum speed |
185 km/h |
| Accelerations |
11,3 s |
| Comments |
Acceleration with shifting through from 0 - 100 km/h; loaded with 2 persons |
| Fuel consumption |
8,6/10,4/14,8 l |
| acc. to guideline |
80/1268/EWG; values for 90 km/h / 120 km/h / city cycle |
Limousines of the series 123
Mercedes-Benz type 250 |
| Gearbox |
4-speed autom. gear shift |
| Availability |
by request (until 09.81) |
| Shifting |
Switch lever at steering wheel or in car center |
| Clutch |
hydr. torque converter in autom. gear |
| Type of gearbox |
Planet gear |
| Synchromesh gears |
|
| Gear transmission |
I. 3,98; II. 2,39; III. 1,46; IV. 1,0; R. 5,47 |
| Differential ratio |
3,69 |
| Maximum speed |
180 km/h |
| Accelerations |
12,2 s |
| Comments |
Acceleration with shifting through from 0 - 100 km/h; loaded with 2 persons |
| Fuel consumption |
10,1/12,9/16,0 l |
| acc. to guideline |
80/1268/EWG; values for 90 km/h / 120 km/h / city cycle |
Limousines of the series 123
Mercedes-Benz type 250 |
| Gearbox |
4-speed autom. gear shift |
| Availability |
by request (from 10.81) |
| Shifting |
Switch lever at steering wheel or in car center |
| Clutch |
hydr. torque converter in autom. gear |
| Type of gearbox |
Planet gear |
| Synchromesh gears |
|
| Gear transmission |
I. 3,68; II. 2,41; III. 1,44; IV. 1,0; R. 5,14 |
| Differential ratio |
3,58 |
| Maximum speed |
180 km/h |
| Accelerations |
12,2 s |
| Comments |
Acceleration with shifting through from 0 - 100 km/h; loaded with 2 persons |
| Fuel consumption |
9,5/11,9/14,5 l |
| acc. to guideline |
80/1268/EWG; values for 90 km/h / 120 km/h / city cycle |
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