Mercedes-Benz W180 - Misplaced Pages

Motor vehicle

Mercedes-Benz W180

Overview
Manufacturer	Mercedes-Benz
Production	1954–1959 84,645 built 220 a: 25,937 220 S Saloon: 55,279 220 S Cabr./Coupé: 3,429
Assembly	West Germany: Stuttgart Australia: Port Melbourne (AMI)
Body and chassis
Class	luxury car
Body style	4-door saloon 2-door coupe 2-door convertible
Related	Mercedes-Benz W120/W121 — Shanghai SH760 180 & 190 Mercedes-Benz W105 — 219 Mercedes-Benz W128 — 220SE
Powertrain
Engine	2.2L M180 I6 (220 a) 2.2L M180.924 I6 (220 S)
Dimensions
Wheelbase	2,820 mm (111.0 in) — saloon 2,700 mm (106.3 in) — coupé and cabriolet
Chronology
Predecessor	Mercedes-Benz W187
Successor	Mercedes-Benz W111

See Mercedes-Benz S-Class for a complete overview of all S-Class models.

The Mercedes-Benz W180 is an inline 6-cylinder saloon, coupé, and convertible produced by Mercedes-Benz from 1954 until 1959. The models associated with the W180 chassis code were the 220 a and, later, the 220 S

The W180 was one in a range of Mercedes-Benz models to informally receive the "Ponton" nickname. This was in reference to the unibody-type, pontoon-shaped exterior styling which was also featured on the later W128 line.

220 a (W180 I)

Introduced in March 1954, the 220 a was a more luxurious and up-scale version of the W120 model 180 with a wheelbase stretched by 170 mm (6.7 in). 100 mm (3.9 in) of that increase in length was necessary to accommodate the longer straight-six, M180 engine. The passenger cabin was lengthened by 70 mm (2.8 in) to increase the legroom available to rear-seat passengers, while the boot remained unchanged. From the side, these six-cylinder cars can readily be distinguished from their shorter four-cylinder siblings by the extra "quarter light" windows incorporated in the rear doors.

The engine was carried over from the W187 model 220; in this application it was fed by a single carburetor and delivered 85 PS (63 kW; 84 hp). Production of the 220 a ended in April 1956, with 25,937 units produced.

220 S (W180 II)

The 220 a was succeeded in March 1956 by the 220 S, which was externally almost identical, but had an upgraded version of the 2.2L inline-six (100 PS (74 kW; 99 hp), later 106 PS (78 kW; 105 hp)), due to the use of twin-carburetors.

Visually, the 220 S featured a new one piece front bumper, instead of the 3-piece bumper used on the 220 a. Also, the twin chrome and rubber strips running under the doors of the 220 a were replaced with solid chrome strips. The most obvious difference is the addition of a chrome strip running along the front fenders and doors of the 220 S.

The 220 S was available with a 4-speed column shift manual transmission, with an optional Hydrak automatic clutch. This made use of small microswitches on the gear selector that automatically disengaged the clutch when the driver changed gears. Many cars have subsequently been converted to use a regular manual clutch, due to the high maintenance costs of continuing to use the Hydrak clutch.

Also introduced with the 220 S was the W105 219, which from the a-pillar forward was essentially a single-carburetor 220 a, but rearward from the a-pillar it used the shorter body of the W120/W121 180/190 models.

In July 1956, a convertible (two doors, four seats) joined the line-up, and in October 1956 a coupé version followed suit. Some convertibles were finished with folding rear seats to accommodate additional luggage.

Mercedes-Benz	220 a (W180 I)	220 S (W180 II)	220 S Convertible/Coupé (W180 II)
Produced:	1954–1956	1956–1959	1956–1959
Engine:	6-cylinder-inline engine (four-stroke), front-mounted
Bore x Stroke:	80 mm x 72.8 mm
Displacement:	2195 cc
Max. Power @ rpm:	85 PS (63 kW; 84 hp) @ 4800	100 PS (74 kW; 99 hp) @ 4800 from August 1957: 106 PS (78 kW; 105 hp) @ 5200
Max. Torque @ rpm:	157 N⋅m (116 lb⋅ft) @ 2400	162 N⋅m (119 lb⋅ft) @ 3500 from August 1957: 171.5 N⋅m (126.5 lb⋅ft) @ 3500
Compression Ratio:	7.6: 1	7.6: 1 from August 1957: 8.6: 1
Fuel feed:	Single 2-bbl Solex 32 PAJTA	Dual 2-bbl Solex 32 PAJTA
Fuel tank capacity:	64 L (16.9 US gal; 14.1 imp gal)
Valvetrain:	SOHC, duplex chain
Cooling:	Water
Gearbox:	4-speed manual w/ column shifter rear wheel drive, standard axle ratio 4.11:1 (later 4.10:1)
Electrical system:	12 volt
Front suspension:	Double wishbones, coil springs, stabilising bar
Rear suspension::	Swing axle, radius arms, coil springs
Brakes:	Drum brakes (Ø 230 mm), power assisted
Steering:	Recirculating ball steering
Body structure:	Sheet steel, monocoque (unibody) construction


Dry weight:	1,300 kg (2,900 lb)	1,350 kg (2,980 lb)	Convertible A/C: 1,450 kg (3,200 lb) Coupé: 1,410 kg (3,110 lb)
Loaded weight:	1,730 kg (3,810 lb)	1,790 kg (3,950 lb)	1,815 kg (4,001 lb)

Track front/ rear:	1,430 mm (56 in) / 1,470 mm (58 in)
Wheelbase:	2,820 mm (111 in)		2,700 mm (110 in)

Length:	4,715 mm (185.6 in)	4,750 mm (187 in)	4,760 mm (187 in)
Width:	1,740 mm (69 in)	1,740 mm (69 in)	1,765 mm (69.5 in)
Height:	1,560 mm (61 in)	1,560 mm (61 in)	1,530 mm (60 in)


Tyre/Tire sizes:	6.70 x 13


Top speed:	150 km/h (93 mph)	160 km/h (99 mph)	160 km/h (99 mph)
Fuel Consumption (estimate):	13.5 litres per 100 kilometres (20.9 mpg_‑imp; 17.4 mpg_‑US)	13.5 litres per 100 kilometres (20.9 mpg_‑imp; 17.4 mpg_‑US)	13.5 litres per 100 kilometres (20.9 mpg_‑imp; 17.4 mpg_‑US)
Price Germany USA:	DM 12,500 $4,175	DM 12,500 $4,494	DM 21,500 $7,138

220 a (W180 I)

220 S (W180 II)

References

Notes

Bibliography

External links