Mercedes-Benz M 100
| Daimler Benz | |
|---|---|
 Mercedes-Benz M 100 |
|
| M 100 | |
| Production period: | 1963-1981 |
| Manufacturer: | Daimler Benz |
| Working principle: | Otto |
| Motor design: | V8 |
| Valve control: | SOHC |
| Displacement: | 6332 or 6834 cm 3 |
| Mixture preparation: | Manifold injection |
| Engine charging: | sucking free |
| Power: | 184-210 kW |
| Previous model: | none |
| Successor: | none |
The motor M 100 is a gasoline engine with eight cylinders in V-position the brand Mercedes-Benz . It was the first eight-cylinder Mercedes car engine after the Second World War .
It was used in the 1960s and 1970s in the Mercedes-Benz 600 representative car and in the top models of some S-Classes: the Mercedes-Benz 300 SEL 6.3 and the Mercedes-Benz 450 SEL 6.9 . Some vehicles of the successor Mercedes-Benz W 126 were equipped with the M 100 engine - subsequently authorized by importers and not by Daimler-Benz. Production of the M 100 was discontinued in 1982.
technology
The engine works according to the Otto process and is water-cooled. It has one overhead camshaft per cylinder bank ( OHC ) and two valves per cylinder operated by rocker arms, which stand in a row and are inclined slightly towards the inlet side (in the cylinder V), resulting in wedge-shaped combustion chambers. The camshafts are driven by a double roller chain. The crankshaft has five bearings and is designed in a cross - plane design . The engine block is made of gray cast iron and the cylinder heads are made of die-cast aluminum. The mixture is formed with a mechanical manifold injection with an eight-piston injection pump, which was supplied by Bosch.
In this version it was installed in the Mercedes 600 and 300 SEL 6.3 :
- Bore 103 mm, stroke 95 mm, displacement 6332 cm³
- Compression 9.0: 1
- Mechanical intake manifold injection with an 8-piston pump from Bosch
- Output 184 kW (250 PS) at 4000 rpm
- Torque 503 Nm at 2800 rpm
From 1975 the engine was offered with a larger displacement and more power in the 450 SEL 6.9 model of the W 116 series . At the same time, Mercedes switched the mixture preparation: from the complicated manifold injection with eight-piston injection pump to the simpler, air-volume-controlled manifold injection K-Jetronic from Bosch. The engine was also given dry sump lubrication .
- Bore 107 mm, stroke 95 mm, displacement 6834 cm³
- Compression 8.8: 1
- Bosch K-Jetronic intake manifold injection
- Output 210 kW (286 hp) at 4250 rpm
- Torque 550 Nm at 3000 rpm
reputation
Until the appearance of the Mercedes-Benz twelve-cylinder models with increased displacement ( AMG and Brabus models with 7.3 liters), the M-100 engines were the largest passenger car engines built in post-war Germany. Only the US “Big Block” engines from General Motors and Ford , as well as the engines of the Russian SIL representative cars , had larger cubic capacities.
Cars with the M 100
600 (W 100)
With the appearance of the Mercedes 600 and its engine output of 250 hp (184 kW), the British representative limousines from Rolls-Royce were only in second place in terms of their engine output ("sufficient" - sufficient, Rolls-Royce had always stated, there were around 210) hp (157 kW) from 6250 cm³, later 6750 cm³). Despite the high vehicle mass of 2475 to 2710 kg (empty, ready to drive without a driver), the performance of the Mercedes-Benz 600 was roughly equivalent to that of the previous 300 SL Roadster or that of the newer sports car from Mercedes, the 230 SL.
300 SEL 6.3 (W 109)
The W 109 series then had a lower output mass in 1968 , which (with six-cylinder engines) weighed just under 1.6 tons. With the slightly modified M 100, which already weighs more than 400 kg with all units alone without the obligatory automatic transmission, the vehicle mass is 1780 kg. The design of this car goes back to a suggestion by the Mercedes test manager Erich Waxenberger.
The appearance triggered a small boom for this luxury limousine, which was extremely fast and powerful at the time. The number of units delivered was only four digits at 6,526 vehicles; including many celebrities from the 1960s: including Peter Alexander , Hildegard Knef and Udo Jürgens .
The first tuners also took on the car; With a displacement increase to 6.8 liters and outputs between 320 and 340 PS (235–250 kW), the young AMG company took part in touring car races with great success; the large engine was very suitable for increasing power.
450 SEL 6.9 (W 116)
The use of this engine with the passenger car model W 116 (S-Class from 1972) was further increased . The top model at 69,930 DM (base price 1975) now had a displacement of over 6.8 liters with an additional 26 kW; more power than the 6.75-liter Rolls-Royce. Although the car now weighed 1935 kg (empty weight ready to drive without driver; in the basic configuration, which already included automatic, air conditioning and hydropneumatic suspension), the power-to-weight ratio of around 9.2 kg / kW (6.8 kg / PS) was even lower than that of the Predecessor.
According to the factory, the top speed was 225 km / h. The Swiss magazine Automobil-Revue measured the top speed in 1978 with 238 km / h. The British magazine "Road & Track" undertook a driving test with this vehicle across Western Europe and published a report on it under the title "Colossus of the Road".
"Trasco 1000 SEL" (W 126)
Even after the 116 series was replaced, these engines were still installed in a stretched version of the successor model for individual target countries. In Germany and throughout Europe, this engine was no longer delivered in new cars, but the Arab countries received this engine in the W 126 model for a few years on special request. The importer named these models "Trasco 1000 SEL" to set them apart from the other top models "500 SEL" and "560 SEL". Daimler-Benz did not officially recognize the "1000 SEL" as a Mercedes-Benz vehicle, as it was a matter of unauthorized modifications to a "wrong" engine. In the Emirates, however, the number of these vehicles was in three digits.
Other conversions
There are some conversions of other Mercedes models to this type of engine, the head of the test driving department, Erich Waxenberger, had the M-100 engine installed on a trial basis in a W 111 Coupé and a W 113 Roadster . At the customer's request, Daimler-Benz also installed the M 100 in Mercedes vehicles of other types after a technical check of feasibility.
Some sports car owners also converted their 107 series coupés to it. However, these conversions are difficult to service because of the tight engine bay.
Individual evidence
- ^ Rohde / Koch: Type compass Mercedes-Benz passenger cars 1945–1975. 1st edition 2000, p. 127, ISBN 3-613-02019-X .
- ↑ Jörg Maschke: The 6.3 Pagoda at mercedes-benz-passion.com , March 29, 2012.
- ^ The big party at autobild.de , January 10, 2011.
