Mercedes-Benz 260 D / W138 (1936 - 1940)
Video
Details
| Layout | FR layout |
|---|---|
| Powertrain | |
| Engine | 2545 cc OM138 I4 diesel |
| Transmission | three-speed gearbox with overdrive (Nullserie), four-speed with synchromesh on all ratios from 1937. |
| Dimensions | |
| Wheelbase | 3,050 mm (120.1 in) |
| Length | 4,390 mm (172.8 in) |
| Width | 1,630 mm (64.2 in) |
| Curb weight | 1,530 kg (3,373 lb) |
| 260 D | ||
|---|---|---|
| Designation | W 138 | |
| engine | ||
| Working method | Four-stroke diesel (with pre-chamber injection) | |
| Arrangement in the vehicle | front, lengthways; standing | |
| Engine type / model | OM 138 | |
| Number of cylinders / arrangement | 4 / row | |
| Bore × stroke | 90 × 100 mm | |
| Displacement | 2545 cm³ (according to tax formula 2527 cm³) | |
| Compression ratio | 20.5 | |
| Performance / at | 45 hp at 3000 rpm | |
| Valve arrangement / number | 1 inlet, 1 outlet / hanging | |
| Valve control | 1 side camshaft | |
| Camshaft drive | via spur gears | |
| Mixture formation | Pre-chamber injection, mechanically controlled; ~ Bosch 4-piston injection pump | |
| Fuel tank: arrangement / capacity | in the engine compartment / 38 l | in the rear / 50 l |
| Chassis and power transmission | ||
| Frame design | Box-profile pressed steel low frame | |
| Wheel suspension; front | 1 transverse spring each above and below, lever shock absorber | 1 transverse spring each above and below |
| Wheel suspension; back | Swing axle | |
| Suspension; front | Transverse springs | |
| Suspension; back | Double coil springs | |
| steering | Worm steering with steering finger from ZF , license Ross | |
| Brake system (foot brake) | hydraulically operated drum brakes on the front and rear axles | |
| Parking brake (handbrake) | mechanically; Outer band brake at the front of the differential housing | mechanically; on drive shaft, from 02.1938 on rear wheels |
| bikes | Disc wheels | |
| rims | Drop center rim 4.00 E x 16 and 4.50 E x 16 | |
| tires | 5.25-17 or 5.50-17 | 5.50-17; from 02.1938: 6.50-16 |
| Driven wheels | Rear wheels | |
| Power transmission | propeller shaft | |
| Transmission and performance | ||
| transmission | 3-speed manual transmission with additional overdrive | 4-speed manual transmission ZF |
| circuit | Gear lever in the middle of the carriage | |
| coupling | Single-disc dry clutch | |
| Gear type | Gear change transmission | |
| Gear ratio | I. 3.33; II. 1.71; III. 1.0; P. 0.73 | I. 5.27; II. 2.52; III. 1.50; IV. 1.0 |
| Final drive ratio | 3.97 | 6.125 |
| Top speed | 90 km / h | 94 km / h |
| Fuel consumption | 11 l | 11 l |
| Dimensions and weights | ||
| wheelbase | 3050 mm | |
| Front / rear track | 1340/1380 mm | 1370/1390 mm; from 1938: 1382/1412 mm |
| length | 4390 mm (Pullman 4550 mm) | 4580 mm (Pullman 4790 mm) |
| width | 1630 mm | 1710 mm |
| height | 1600 mm | 1610 mm |
| Weight of the chassis | 1030 kg | 1100 kg |
| Empty weight (car weight) | Pullman limousine: 1530 kg | Limousine: 1550 kg; Pullman limousine: 1680 kg |
| Perm. total weight | 2100 kg | 2125 kg |
Mercedes-Benz 260 D on Wikipedia