Audi 100 C1 First Generation
|Production||1970–1989 827.474 built four-door: 796,787 Coupé S: 30.687|
|Assembly||Neckarsulm, Baden-Württemberg, Germany Ingolstadt, Bavaria, Germany Wolfsburg, Lower Saxony, Germany|
|Body style||4-door saloon/sedan 2-door coupé 2-door saloon|
|Platform||Volkswagen Group C1 platform|
|Engine||1.8 L I4 1.9 L I4|
|Transmission||4-speed manual all-synchromeshautomatic optional|
|Wheelbase||105.3 in (2,675 mm) (coupe)|
|Length||173.2 in (4,399 mm)|
|Width||68 in (1,727 mm)|
|Height||55.8 in (1,417 mm)|
|Curb weight||2,401 lb (1,089 kg) (coupe)|
The Audi 100 was shown to the press on 26 November 1968. Its name originally denoting a power output of 100 PS (74 kW; 99 hp), the Audi 100 was the company's largest car since the revival of the Audi brand by Volkswagen in 1965.
The C1 platform spawned several variants: the Audi 100 two- and four-door saloons.
And the Audi 100 Coupé S, a stylish fastback coupé, which bore a remarkable resemblance to the Aston Martin DBS released a year earlier, especially at the rear end, including details such as the louvres behind the rear side windows and shape of the rear light clusters.
Audi followed up the introduction of the four-door saloon in November 1968 with a two-door saloon in October 1969 and the 100 Coupé S in autumn 1970. The cars' four-cylinder engines originally came in base (100, 80 PS or 59 kW; 79 hp), 100 S (1.8 litre, 90 PS or 66 kW; 89 hp) and 100 LS (1.8 litre, 100 PS or 74 kW; 99 hp) guise, while the Coupé was driven by a bored-out 1.9 litre developing 115 PS (85 kW; 113 hp). From April 1970 the 100 LS could be ordered with a three-speed automatic transmission sourced from Volkswagen.
PERFORMANCE: Audi 100 1.8L
- Engine capacity: 107.40 cu in, 1,760 cu cm
- Fuel consumption: 31.7 mlimp gal, 26.4 ml US gal, 8.9 1 x 100 km
- Max speed:105.6 mph, 170 kmlh
- Max power (SAE): 115 hp at 5,500 rpm
- Max torque (SAE): 120 1b ft, 16.5 kg m at 3,200 rpm
- Max engine rpm: 6,000
- Specific power: 65.3 hp/l
- Power-weight ratio: 20.1 lb/hp, 9.1 kg/hp
- Acceleration: 0—50 mph (0—80 km/h) 8 sec
The Audi 100 enjoyed a level of commercial success for which the company had not planned. As a distinguished German commentator pointed out, the rough engine note was unlikely to discourage buyers whose first car had been a Volkswagen and who aspired to drive a diesel powered (pre-turbo) Mercedes-Benz. Despite running the Ingolstadt production line at full capacity, supply fell short of demand to such an extent that during the summer of 1970 an additional production line for Audi 100s was set up in Volkswagen's own Wolfsburg plant, which made it the first water-cooled car to be produced in Germany's (and by some criteria the world's) largest car plant.
Starting with model year 1972 the 80 and 90 PS versions were replaced by a new regular-petrol-variant of the 1.8 litre engine developing 85 PS (84 hp/63 kW); at the same time, the 100 GL was introduced that featured the 1.9 liter engine formerly used in the Coupé S only.
In March 1971 the 500,000th Audi was produced. By now the Audi 100 had become the most commercially successful model in the company's history, so it is unsurprising that the car in question was an Audi 100 produced at the Ingolstadt plant.
In September 1973 the 100 received a minor facelift with a somewhat smaller grille and reshuffled taillight lens patterns. The rear torsion bar was replaced by coil springs. For model year 1975 the base 100 was re-christened the 100 L and received a 1.6 litre four-cylinder engine (coming out of the Audi 80).
A four-wheel drive prototype of the Audi 100 C1 was built in 1976, long before the appearance of the quattro.
Audi 100 C1 1st Gen Technical details and specifications (1968-1976)
4 stroke; cylinders: 4, in line
bore and stroke: 3.21 x 3.32 in, 81.5 x 84.4 mm
engine capacity: 107.40 cu in, 1,760 cu cm
compression ratio: 10.2
cylinder block: cast iron
camshafts: 1, side
lubrication: gear pump, full flow filter
carburation: 1 Solex 32T DID downdraught twin barrel carburettor
fuel feed: mechanical pump
cooling system: water
driving wheels: front
clutch: single dry plate
gearbox: mechanical; gears: 4 + reverse
synchromesh gears: all
gear ratios:1st 3.400 2nd 1.944, 3rd 1.360, 4th 0.966, rev 3.100
gear lever: steering column
final drive: spiral bevel
axle ratio: 3.888
front suspension: independent, wishbones, lower leading arms, longitudinal torsion bars, coil springs, anti-roll bar, telescopic dampers
rear suspension: rigid axle, swinging longitudinal trailing arms, Panhard transverse linkage bar, transverse torsion bars, anti-roll bar, telescopic dampers.
turns of steering wheel lock to lock: 4.
turning circle (between walls): 36.7 ft, 11.2 m
front disc (diameter 11.02 in, 280 mm), rear drum, dual circuit, servo
brake area rubbed by linings: front 16.28 sq in, 105 sq cm
brake area rubbed by linings: rear 45.27 sq in, 292 sq cm,
brake area rubbed by linings: total 61.55 sq in, 397 sq cm.
voltage: 12 V
battery: 45 Ah
generator type: alternator, 490 W
ignition distributor: Bosch
DIMENSIONS AND WEIGHT
wheel base: 105.31 in, 2,675 mm
overall width: 68.07 in, 1,729 mm
overall height: 54.65 in, 1,388 mm
ground clearance: 6.42 in, 163 mm
dry weight: 2,315 1b, 1,050 kg
distribution of weight: 50% front axle, 50% rear axle
© Motor car History
Audi 100 C1 1st Gen Maintenance and Service Guide (1968-1976)
Gearbox and final drive oil: 3.52 imp pt, 4.23 US pt, 2 1, SAE 80, change every 18,600 miles, 30,000 km
Normal tyre pressure: front 26 psi, 1.8 atm, rear 26 psi, 1.8 atm.
Width of rims: 4.5"
Tyres: 165 x 14
Fuel tank capacity: 12.8 imp gal, 15.3 US gal
Carrying capacity: 1,058 1b, 480 kg
Fuel: 98-100 oct petrol
Engine oil change: 7.04 imp pt. 8.46 US pt, 4 1, SAE 10W-30, change every 3,100 miles, 5,000 km
Total lubricating system capacity: 7.04 imp pt, 8.46 US pt
Tappet clearances: inlet 0.004 in, 0.10 mm, exhaust 0.014 in, 0.35 mm
Valve timing: inlet opens 8° before tdc and closes 40° after bdc, exhaust opens 43° before bdc and closes 7° after tdc
Cooling system capacity: 13.20 imp pt, 15.85 US pt
© Motor car History
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