"Ponton-Mercedes", four-cylinder types (W 120, W 121)
Mercedes-Benz type 180 c
Type 180 c 
Name 180 c 
Name Mercedes-Benz type 180 c 
Short name 180 c 
Model W 120 B IV 
Production 06.61 - 10.62 
Number produced 9 097 saloons 
Comments concerning the production period  
Prices 08.61: 8.950,00 DM 04.62: 9.350,00 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 1615 kg 
Max. front axle weight 735 kg 
Max. rear axle weight 880 kg 
Max. load 450 kg 
Max. trailer weight braked 1200 kg 
Max. trailer weight unbraked 620 kg 
Weight empty 1165 kg 
According to guideline DIN 70020 (with fuel, spare wheel and tool equipment) 
Operating method four-stroke Otto 
Configuration front, parallel; upright 
Type M 121 b VIII / 121.927 
No. of cylinder/configuration 4 / in line 
Bore x stroke 85 x 83,6 mm 
Total displacement 1897 ccm (tax classification: 1882 ccm) 
Compression ratio 7,0 
Crankshaft bearing 3 
Output 68 hp at 4400 /min 
Maximum torque 14,8 mkg at 2500 /min 
No. of valves/configuration 1 intake, 1 exhaust / overhead 
Valve operation top camshaft 
Camshaft drive duplex roller-type chain 
Mixture formation 1 downdraught carburetter Solex 32 PICB 
Cooling water cooling / pump; 9 l water 
Lubrication pressure circulation lubrication / 4 l oil 
Electric system 12 V 
Battery 56 Ah / in the engine compartment 
Dynamo 160 W 
Starter motor electrical / 0,8 PS 
Ignition battery ignition 
Fuel tank in the rear / 56 l 
Fuel supply diaphragm 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, on demand with vacuum-operated brake servo unit, 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 c
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 135 km/h 
Accelerations 21 s 
Comments Acceleration with shifting through from 0 - 100 km/h; loaded with 2 persons 
Fuel consumption 10,9 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 c
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 135 km/h 
Accelerations 21 s 
Comments Acceleration with shifting through from 0 - 100 km/h; loaded with 2 persons 
Fuel consumption 10,9 l 
acc. to guideline DIN 70030, ascertained at 3/4 of max. speed, maximal 110 km/h, unter Zuschlag von 10 %