Coup‚s of the series 123
Mercedes-Benz type 300 CD turbodiesel
Type 300 CD turbodiesel 
Name 300 CD turbodiesel 
Name Mercedes-Benz type 300 CD turbodiesel 
Short name 300 CD turbodiesel 
Model C 123 D 30 A 
Production 07.81 - 08.85 
Number produced 8.007 
Comments concerning the production period  
Prices not available in Germany 
Wheelbase 2710 mm 
Track rear/front 1488/1446 mm 
Length 4763 mm 
Width 1786 mm 
Height 1395 mm 
Smallest turning circle 11,0 m 
Chassis weight
Max. total weight 2080 kg 
Max. front axle weight 995 kg 
Max. rear axle weight 1085 kg 
Max. load 455 kg 
Max. trailer weight braked  
Max. trailer weight unbraked  
Weight empty 1625 kg 
According to guideline DIN 70020 (with fuel, spare wheel and tool equipment) 
Operating method four-stroke Diesel (with indirect injection and exhaust TC) 
Configuration front, parallel; upright 
Type OM 617 D 30 A / 617.952 
No. of cylinder/configuration 5 / in line 
Bore x stroke 90,9 x 92,4 mm 
Total displacement 2998 ccm 
Compression ratio 21,5 
Crankshaft bearing
Output 121 hp / 89 kW at 4350 /min;~since 10.82: 125 hp / 92 kW at 4350 /min 
Maximum torque 230 Nm at 2400 /min; since 10.82: 250 Nm at 2400 /min 
No. of valves/configuration 1 intake, 1 exhaust / overhead 
Valve operation top camshaft 
Camshaft drive duplex roller-type chain 
Mixture formation indirect injection, mechanically controlled;~Bosch 5-plunger-type injection pump / exhaust-gas TC 
Cooling water cooling / pump; 12 l water 
Lubrication pressure circulation lubrication / 8,6 l oil 
Electric system 12 V 
Battery 88 Ah / in the engine compartment 
Dynamo three-phase AC / 770 W 
Starter motor electrical / 2,3 kW 
Ignition compression ignition engine 
Fuel tank above the rear axle / 80 l 
Fuel supply piston pump at the injection 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 ball-and-nut power steering 
Steering transm ratio 16,55:1 / 3,2 steering wheel turns 
Breaking system braking system 
Breaking system hydraulic dual-circuit braking system with vacuum-operated brake servo unit, 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, on demand light-alloy disc wheels 
Wheels rims 6 J x 14 H 2 
Tyres 195/70 SR 14 90 S 

Skrzynie biegów tego modelu (gearbox and performance):

Coup‚s of the series 123
Mercedes-Benz type 300 CD turbodiesel
Gearbox 4-speed autom. gear shift 
Availability Series 
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 3,07; from 10.84: 2,88 
Maximum speed 165 km/h; from 10.84: 170 km/h 
Accelerations 14,0 s 
Comments Acceleration with shifting through from 0 - 100 km/h; loaded with 2 persons 
Fuel consumption  
acc. to guideline