"Ponton-Mercedes", four-cylinder types (W 120, W 121)
Mercedes-Benz type 180 Dc
Type 180 Dc 
Name 180 Dc 
Name Mercedes-Benz type 180 Dc 
Short name 180 Dc 
Model W 120 D III 
Production 06.61 - 10.62 
Number produced 11.600 saloons 
Comments concerning the production period  
Prices 08.61: 9.450,00 DM 04.62: 9.850,00 DM 
Wheelbase 2650 mm 
Track rear/front 1440/1485 mm 
Length 4500 mm 
Width 1740 mm 
Height 1560 mm 
Smallest turning circle 10,7 m 
Chassis weight
Max. total weight 1660 kg 
Max. front axle weight 780 kg 
Max. rear axle weight 880 kg 
Max. load 450 kg 
Max. trailer weight braked 1200 kg 
Max. trailer weight unbraked 640 kg 
Weight empty 1210 kg 
According to guideline DIN 70020 (with fuel, spare wheel and tool equipment) 
Operating method four-stroke Diesel (with indirect injection) 
Configuration front, parallel; upright 
Type OM 621 IV / 621.914 
No. of cylinder/configuration 4 / in line 
Bore x stroke 87 x 83,6 mm 
Total displacement 1988 ccm (tax classification: 1974 ccm) 
Compression ratio 21 
Crankshaft bearing 3 
Output 48 hp at 3800 /min 
Maximum torque 11,0 mkg at 2000 /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 4-plunger-type injection pump 
Cooling water cooling / pump; 8,6 l water 
Lubrication pressure circulation lubrication / 4 l oil 
Electric system 12 V 
Battery 66 Ah / in the engine compartment 
Dynamo 160 W 
Starter motor electrical / 1,8 PS 
Ignition compression ignition engine 
Fuel tank in the rear / 56 l 
Fuel supply piston pump at the injection pump 
Driven whells rear wheels 
Power transmission divided cardan shaft 
Frame desing floor assembly / self-supporting all-steel body 
Wheel suspension front double wishbone 
Wheel suspension rear single-joint swing axle 
Suspension front coil springs, torsion bar stabilizer 
Suspension rear coil springs 
Damper hydraulic telescopic damper 
Steering recirculating-ball steerg. 
Steering transm ratio 18,5:1 / 3,5 steering wheel turns 
Breaking system braking system 
Breaking system hydraulic, effective on front- and rear wheels ; drum brakes front and rear 
Parking breake parking brake 
Parking breake mechanical, effective on rear wheels 
Diamatre brake drums front / rear: 230 mm 
Wheels sheet steel-disc wheels 
Wheels rims drop centre rim 5 JK x 13 B 
Tyres 6,40-13 

Skrzynie biegów tego modelu (gearbox and performance):

"Ponton-Mercedes", four-cylinder types (W 120, W 121)
Mercedes-Benz type 180 Dc
Gearbox 4-speed gear shift 
Availability Series (1. execution) 
Shifting Gear shift 
Clutch Single-plate dry clutch 
Type of gearbox Pinion change gear 
Synchromesh gears I - IV 
Gear transmission I. 4,05; II. 2,38; III. 1,53; IV. 1,0; R. 3,92 
Differential ratio 3,90 
Maximum speed 110 km/h 
Accelerations 36 s 
Comments Acceleration with shifting through from 0 - 100 km/h; loaded with 2 persons 
Fuel consumption 7,1 l 
acc. to guideline DIN 70030, ascertained at 3/4 of max. speed, maximal 110 km/h, unter Zuschlag von 10 % 
"Ponton-Mercedes", four-cylinder types (W 120, W 121)
Mercedes-Benz type 180 Dc
Gearbox 4-speed gear shift 
Availability Series (2. execution) 
Shifting Gear shift 
Clutch Single-plate dry clutch 
Type of gearbox Pinion change gear 
Synchromesh gears I - IV 
Gear transmission I. 4,05; II. 2,28; III. 1,53; IV. 1,0; R. 3,92 
Differential ratio 3,90 
Maximum speed 110 km/h 
Accelerations 36 s 
Comments Acceleration with shifting through from 0 - 100 km/h; loaded with 2 persons 
Fuel consumption 7,1 l 
acc. to guideline DIN 70030, ascertained at 3/4 of max. speed, maximal 110 km/h, unter Zuschlag von 10 %