1991-1994 Audi Cabriolet (B3 8G) 2.3 E (133 Hp)

The Audi Cabriolet (B3 8G) 2.3 E, produced between June 1991 and July 1994, represented a significant step forward for Audi’s open-top offerings. Positioned as a mid-range variant within the B3 Cabriolet lineup, it offered a balance between performance and affordability, appealing to buyers seeking a stylish and capable convertible. This model was built on the Audi 80 (B3) platform, sharing many components with its coupe and sedan siblings, but distinguished by its fully automatic electro-hydraulic fabric roof. The 2.3 E variant, with its 133 horsepower engine, aimed to provide a more refined driving experience than the base models while remaining accessible to a broader customer base than the more powerful, and expensive, 2.6 and 2.8 liter options.

Technical Specifications

Brand Audi
Model Cabriolet
Generation Cabriolet (B3 8G)
Type (Engine) 2.3 E (133 Hp)
Start of production June, 1991
End of production July, 1994
Powertrain Architecture Internal Combustion engine
Body type Cabriolet
Seats 4
Doors 2
Fuel consumption (combined) 10 l/100 km (23.5 US mpg, 28.2 UK mpg, 10 km/l)
Fuel Type Petrol (Gasoline)
Acceleration 0 – 100 km/h 10.8 sec
Acceleration 0 – 62 mph 10.8 sec
Acceleration 0 – 60 mph 10.3 sec
Maximum speed 198 km/h (123.03 mph)
Weight-to-power ratio 10.3 kg/Hp, 97.1 Hp/tonne
Weight-to-torque ratio 7.4 kg/Nm, 135.8 Nm/tonne
Power 133 Hp @ 5500 rpm
Power per litre 57.6 Hp/l
Torque 186 Nm @ 4000 rpm (137.19 lb.-ft. @ 4000 rpm)
Engine layout Front, Longitudinal
Engine Model/Code NG
Engine displacement 2309 cm3 (140.9 cu. in.)
Number of cylinders 5
Engine configuration Inline
Cylinder Bore 82.5 mm (3.25 in.)
Piston Stroke 86.4 mm (3.4 in.)
Compression ratio 10:1
Number of valves per cylinder 2
Fuel injection system Multi-port manifold injection
Engine aspiration Naturally aspirated engine
Valvetrain OHC
Engine oil capacity 4 l (4.23 US qt | 3.52 UK qt)
Coolant capacity 8 l (8.45 US qt | 7.04 UK qt)
Kerb Weight 1370 kg (3020.33 lbs.)
Max. weight 1770 kg (3902.18 lbs.)
Max load 400 kg (881.85 lbs.)
Trunk (boot) space – minimum 230 l (8.12 cu. ft.)
Fuel tank capacity 70 l (18.49 US gal | 15.4 UK gal)
Length 4366 mm (171.89 in.)
Width 1716 mm (67.56 in.)
Height 1379 mm (54.29 in.)
Wheelbase 2556 mm (100.63 in.)
Front track 1453 mm (57.2 in.)
Rear (Back) track 1447 mm (56.97 in.)
Drag coefficient (Cd) 0.36
Minimum turning circle 11.2 m (36.75 ft.)
Drivetrain Architecture Front wheel drive
Number of gears 5 gears, manual transmission
Front suspension Independent, type McPherson with coil spring and anti-roll bar
Front brakes Ventilated discs
Rear brakes Disc
Assisting systems ABS (Anti-lock braking system)
Tires size 195/65 R15
Wheel rims size 15

Powertrain & Engine Architecture

The heart of the 2.3 E Cabriolet was the Audi NG inline five-cylinder engine. This engine, a hallmark of Audi’s engineering prowess during the period, was known for its smooth operation and relatively high output for its displacement. The NG engine featured a cast iron block and an aluminum cylinder head, employing a single overhead camshaft (OHC) design operating two valves per cylinder. Fuel delivery was managed by a Bosch Motronic multi-port fuel injection system, optimizing combustion for both performance and efficiency. The 2.3-liter displacement was achieved with a bore of 82.5mm and a stroke of 86.4mm, resulting in a compression ratio of 10:1. The engine was mounted longitudinally in the front of the vehicle, driving the front wheels through a five-speed manual transmission. This configuration contributed to a balanced weight distribution, enhancing handling characteristics.

Driving Characteristics

The 2.3 E Cabriolet offered a comfortable and engaging driving experience. While not overtly sporty, the 133 horsepower engine provided adequate power for everyday driving and even some spirited acceleration. The 0-60 mph time of around 10.3 seconds and a top speed of 123 mph were respectable for the early 1990s. The five-speed manual transmission allowed drivers to effectively utilize the engine’s torque curve, providing good control and responsiveness. Compared to the more powerful 2.6 and 2.8 liter versions, the 2.3 E felt less strained at higher speeds, and its lighter weight contributed to slightly improved fuel economy. However, it lacked the outright punch of its larger-engined siblings. The front-wheel-drive layout, while providing good traction in most conditions, could exhibit some torque steer under hard acceleration.

Equipment & Trim Levels

The 2.3 E Cabriolet typically came equipped with a respectable level of standard features. Interior appointments included cloth upholstery, power windows, central locking, and a basic stereo system. The dashboard layout was typical of Audi’s design language of the era, characterized by a clean and functional aesthetic. Optional extras included leather upholstery, a sunroof (in addition to the convertible top), alloy wheels, and upgraded audio systems. The trim level was generally considered a step above the base models, offering a more refined interior and a slightly more comprehensive equipment list. The electro-hydraulic convertible top was a key feature, offering convenient and reliable operation.

Chassis & Braking

The B3 Cabriolet’s chassis was based on the Audi 80 platform, featuring independent suspension at the front with McPherson struts and coil springs, and a semi-independent torsion beam suspension at the rear. The 2.3 E variant benefited from a slightly stiffer suspension setup compared to the base models, improving handling and stability. Braking duties were handled by ventilated discs at the front and solid discs at the rear, assisted by an Anti-lock Braking System (ABS). The ABS system enhanced braking performance and control, particularly on slippery surfaces. The 195/65 R15 tires provided a good balance of grip and ride comfort.

Market Reception & Comparison

The Audi Cabriolet 2.3 E was generally well-received by automotive critics. It was praised for its stylish design, comfortable ride, and refined engine. However, some reviewers noted that the performance was not as exhilarating as some of its competitors, particularly those with larger engines. Compared to the 2.6 and 2.8 liter Cabriolet models, the 2.3 E offered a more affordable entry point into Audi’s convertible range. It also provided better fuel economy than the larger-engined variants. In terms of reliability, the 2.3 E engine proved to be relatively robust, although regular maintenance was essential to prevent issues such as oil leaks and timing belt failures.

Legacy

The Audi Cabriolet B3 8G, and specifically the 2.3 E variant, holds a special place in automotive history as a stylish and well-engineered convertible. Today, these cars are increasingly sought after by enthusiasts and collectors. The NG five-cylinder engine is particularly admired for its unique sound and durability. While finding well-maintained examples can be challenging, the 2.3 E Cabriolet remains a rewarding classic car to own and drive. Common issues to look for in the used market include rust, particularly in the bodywork and undercarriage, and wear and tear on the convertible top mechanism. The engine is generally reliable, but regular maintenance, including timing belt replacement, is crucial to ensure long-term reliability.

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