Types 250 S - 300 SEL 6.3 (series 108, 109)
Mercedes-Benz type 280 SEL 3.5
Type 280 SEL 3.5 
Name 280 SEL 3.5  
Name Mercedes-Benz type 280 SEL 3.5  
Short name 280 SEL 3.5  
Model W 108 E 35/1 
Production 05.71 - 08.72 
Number produced 28 
Comments concerning the production period  
Prices no list price 
Wheelbase 2850 mm 
Track rear/front 1482/1485 mm 
Length 5000 mm 
Width 1810 mm 
Height 1440 mm 
Smallest turning circle 12,12 m 
Chassis weight
Max. total weight unterschiedlich, je nach Umfang der special protective edition 
Max. front axle weight  
Max. rear axle weight  
Max. load  
Max. trailer weight braked  
Max. trailer weight unbraked  
Weight empty different, depending on extent of the special protective edition 
According to guideline  
Operating method four-stroke Otto (with manifold-injection) 
Configuration front, parallel; upright 
Type M 116 E 35 / 116.980 
No. of cylinder/configuration 8 / 90ř-V-form 
Bore x stroke 92 x 65,8 mm 
Total displacement 3499 ccm (tax classification: 3459 ccm) 
Compression ratio 9,5 
Crankshaft bearing 5 
Output 200 hp at 5800 /min 
Maximum torque 29,2 mkg at 4000 /min 
No. of valves/configuration 1 intake, 1 exhaust / overhead 
Valve operation 1 top camshaft per cylinder line 
Camshaft drive duplex roller-type chain 
Mixture formation manifold-injection, electronically controlled (Bosch D-Jetronic) 
Cooling water cooling / pump; 13,2 l water 
Lubrication pressure circulation lubrication / 7,5 l, first 6,5 l oil 
Electric system 12 V 
Battery 66 Ah / in the engine compartment 
Dynamo three-phase AC / 770 W 
Starter motor electrical / 1,4 PS 
Ignition transistor ignition 
Fuel tank in the rear / 82 l 
Fuel supply electric supply 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 with hydropneumatic compensating spring und level control 
Suspension front coil springs, suppl. rubber suspension, torsion bar type stabilizer 
Suspension rear coil springs, suppl. rubber susp. 
Damper hydraulic telescopic damper 
Steering ball-and-nut power steering 
Steering transm ratio 17,2:1 / 3,2 steering wheel turns 
Breaking system braking system 
Breaking system hydraulic dual-circuit braking system with vacuum-operated brake servo unit, effective on front- and rear wheels ; internally ventilated disc brakes front and rear 
Parking breake parking brake 
Parking breake mechanical, effective on rear wheels 
Diamatre brake discs front / rear: 273 / 279 mm 
Wheels sheet steel-disc wheels 
Wheels rims drop centre rim 6 1/2 J x 14 HB 
Tyres 205/70 VR 14 

Skrzynie biegów tego modelu (gearbox and performance):

Types 250 S - 300 SEL 6.3 (series 108, 109)
Mercedes-Benz type 280 SEL 3.5
Gearbox 4-speed gear shift 
Availability Series 
Shifting Feed control 
Clutch Single-plate dry clutch 
Type of gearbox Pinion change gear 
Synchromesh gears I - IV 
Gear transmission I. 3,96; II. 2,34; III. 1,44; IV. 1,0; R. 3,72 
Differential ratio 3,46 
Maximum speed  
Accelerations  
Comments  
Fuel consumption  
acc. to guideline  
Types 250 S - 300 SEL 6.3 (series 108, 109)
Mercedes-Benz type 280 SEL 3.5
Gearbox 4-speed autom. gear shift 
Availability by request 
Shifting Switch lever at steering wheel 
Clutch hydr. clutch in the 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 3,46 
Maximum speed  
Accelerations  
Comments  
Fuel consumption  
acc. to guideline