The Moskvitch 412 (Moskvich 412, Москвич-412, M-412) is a small family car produced by Soviet/Russian manufacturer MZMA/AZLK in Moscow from 1967 to 1975, and by IZh in Izhevsk from 1967 to 1982 (also known as IZh-412). It was a more powerful and prestigious version of the M-408 model, offering more features for a higher price.
Design
The Moskvitch 412 derived from the Moskvitch 408, differing in more powerful 1.5 engine. The earliest engines for the 412 were built in 1964. The Moskvitch 412 had a slanted (to a tilt of 20 degrees) inline-four engine with a block, head, and inlet manifold cast in aluminium alloy to keep the engine weight down, and a hemispherical combustion chamber. Steel cylinder liners were replaceable to enable easy repair of the engine instead of having to replace it entirely. Since it was of an OHC design, it was taller than the OHV MZMA-408 engine it replaced, which is why it was mounted at a slant. The UZAM-412 had a capacity of c.c. and developed 75 horsepower. Its more powerful version, the Moskvitch-412-2V, had 100 h.p. and was installed on sports cars. The UZAM-412 engine, with a light alloy block, was designed by Igor I. Okunev. According to some observers, it bore some similarities to the contemporary BMW M 115 motor used in the BMW 1500 model, although in other ways they are different from each other. The similarity between the two engines is purely superficial and limited only to the tilt angle of the cylinder block and between the valves and the gear of the overhead camshaft. The gearbox inherited from the M-408 was improved, with the gearbox ratios being revised to make better use of the increased power output. Until early 1969, M412 had the gear lever on the steering column, just like M-408, and did not have bucket seats, but a front bench, making M408 and 412 very hard to distinguish. From early 1969 on, because a new improved gearbox was installed in order to make a better use of the power and torque and to improve performances, M-412 had the gear lever mounted on the floor. The M-408 had the gear lever mounted on the floor since late 1973. Initially, the 412 was designed as a replacement for the 408, but they ended up being built together at the same plant. The decision to keep 408 in production was that it was more suited to harsh conditions than the 412; it could tolerate 75 octane fuel and could work with lower grade oils. Between 1967 and 1969, the only difference between 408 and 412 was usually a badge, placed on the rear of the car trunk lid ( near the Moskvitch name or opposite ), on the front fenders or on the front radiator grill. The badge was usually 412, but sometimes it was also 1500, depending on version and market.
In 1969, both the 412 and the related 408 had their bodies redesigned. These were notable for being the first Moskvitch models to feature rectangular headlights and horizontal rear lights, which passed on to the 2138/2140 in 1976, replacing round headlights (two on ordinary models, four mainly on export models) and vertical rear lights. Only rear triangular turn signals remained on vestigial tailfins. Until then, the M-412 profited from heightened tailfins and tanned headlight lamps on export models. The first series Moskvich 412 (1967-1969) is quite rare today as they were more expensive and thus built in lower numbers than the 408. Another notable (but not unique, as it was used in other Russian cars at the time) feature were the so-called side signals, mounted on the C-pillars on some vehicles and similar to the American "opera lights". The designers "had paid real attention to passive safety," the car was crash-tested, met the standards of safety adopted by the UNECE, and received an international safety certificate as a result of almost five months of tests in France. It was upgraded with dual-circuit braking system with power assistance (servo), disc brakes on the front wheels since 1970 (models with front drum brakes continued to be built, but for certain markets, like western Europe, were delivered with brake discs, but even in East Europe models with brake discs at the front were available, in parallel with drum brakes versions), reinforced car-body structure, and passive safety features such as soft grip steering wheel cover, soft interior parts, seat belts, and padded dashboard. It was the first Moskvitch to pass safety-features tests in France, Bulgaria, Czechoslovakia, and Sweden in 1970–71, and in Western Germany in 1972. The modernized model, both for export and domestic market, received a factory code M-412IE (IE for "export rendition"), to mark, that it fulfils new safety requirements.