S-Class limousines of the series 140
Mercedes-Benz type S 420
Type S 420 
Name S 420 
Name Mercedes-Benz type S 420 
Short name S 420 
Model W 140 E 42 
Production since 03.94 
Number produced in production 
Comments concerning the production period  
Prices 03.94: 123.567,50 DM 08.94: 126.212,50 DM 05.95: 127.362,50 DM 03.97: 128.225,00 DM 
Wheelbase 3040 mm 
Track rear/front 1606/1579 mm 
Length 5113 mm 
Width 1886 mm 
Height 1486 mm 
Smallest turning circle 12,18 m 
Chassis weight
Max. total weight 2640 kg 
Max. front axle weight 1260 kg 
Max. rear axle weight 1380 kg 
Max. load 650 kg 
Max. trailer weight braked 2100 kg 
Max. trailer weight unbraked 750 kg 
Weight empty 1990 kg 
According to guideline DIN 70020 (with fuel, spare wheel and tool equipment) 
Operating method four-stroke Otto (w/ manifold-injection and emission control device w/ three-way catalyst) 
Configuration front, parallel; upright 
Type M 119 E 42 / 119.971 
No. of cylinder/configuration 8 / 90ř-V-form; light-alloy block 
Bore x stroke 92,0 x 78,9 mm 
Total displacement 4196 ccm 
Compression ratio 11,0 
Crankshaft bearing 5 
Output 205 kW / 279 hp at 5700 /min 
Maximum torque 400 Nm at 3900 /min 
No. of valves/configuration 2 intake, 2 exhaust / V-shaped overhead 
Valve operation 2 top camshafts per cylinder line (intake camshafts adjustable) 
Camshaft drive duplex roller-type chain 
Mixture formation microprocessor-controlled injection system w/ hot-wire air-mass ~sensor (LH-Jetronic); since 09.95 w/ HFM (engine control Bosch ME) 
Cooling water cooling / pump; 16,5 l water 
Lubrication pressure circulation lubrication / 8,0 l oil 
Electric system 12 V 
Battery 100 Ah / in the boot 
Dynamo three-phase AC / 1680 W 
Starter motor electrical / 1,8 kW 
Ignition ignition mapping control 
Fuel tank above the rear axle / 100 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 double wishbone 
Wheel suspension rear multilink suspension, on demand with hydropneumatic level control 
Suspension front coil springs, torsion bar stabilizer 
Suspension rear coil springs, torsion bar stabilizer 
Damper gas-pressure damper 
Steering ball-and-nut power steering 
Steering transm ratio 14,02:1 / 2,96 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;~internally ventilated disc brakes front and rear 
Parking breake parking brake 
Parking breake mechanical (foot-operated), effective on rear wheels 
Diamatre brake discs front / rear: 320 / 300 mm 
Wheels light-alloy disc wheels 
Wheels rims 7 1/2 J x 16 H 2 
Tyres 235/60 ZR 16 

Skrzynie biegów tego modelu (gearbox and performance):

S-Class limousines of the series 140
Mercedes-Benz type S 420
Gearbox 4-speed autom. gear shift 
Availability Series (until 08.95) 
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; R. 5,59 
Differential ratio 2,82 
Maximum speed 245 km/h 
Accelerations 8,3 s 
Comments Acceleration with shifting through from 0 - 100 km/h; loaded with 2 persons 
Fuel consumption 9,7/11,7/16,0 l 
acc. to guideline 80/1268/EWG; values for 90 km/h / 120 km/h / city cycle 
S-Class limousines of the series 140
Mercedes-Benz type S 420
Gearbox 5-speed autom. gear shift with electron. control 
Availability Series (from 09.95) 
Shifting Switch lever in car center 
Clutch hydr. torque converter with slip control clutch 
Type of gearbox Planet gear 
Synchromesh gears  
Gear transmission I. 3,59; II. 2,19; III. 1,41; IV. 1,0; V. 0,83; R. 3,16 
Differential ratio 2,82 
Maximum speed 245 km/h 
Accelerations 8,3 s 
Comments Acceleration with shifting through from 0 - 100 km/h; loaded with 2 persons 
Fuel consumption 8,4/10,0/15,8 l 
acc. to guideline 80/1268/EWG; values for 90 km/h / 120 km/h / city cycle