2009-2011 Audi A5 Cabriolet (8F7) 1.8 TFSI (160 Hp)

The Audi A5 Cabriolet 8F7, produced from 2009 to 2011, represented Audi’s entry into the premium mid-size convertible market. The 1.8 TFSI variant, generating 160 horsepower, occupied a crucial position in the lineup as the more accessible, fuel-efficient option. It catered to buyers seeking the A5 Cabriolet’s stylish design and open-air experience without the higher price tag and performance focus of the more powerful models like the 2.0 TFSI or the S5. This model was primarily sold in the European market, where convertible ownership was more prevalent, and offered a balance between performance, economy, and luxury.

Technical Specifications

Brand Audi
Model A5
Generation A5 Cabriolet (8F7)
Type (Engine) 1.8 TFSI (160 Hp)
Start of production September, 2009
End of production 2011
Powertrain Architecture Internal Combustion engine
Body type Cabriolet
Seats 4
Doors 2
Fuel consumption (urban) 10 l/100 km (23.5 US mpg, 28.2 UK mpg, 10 km/l)
Fuel consumption (extra urban) 5.9 l/100 km (39.9 US mpg, 47.9 UK mpg, 16.9 km/l)
Fuel consumption (combined) 7.4 l/100 km (31.8 US mpg, 38.2 UK mpg, 13.5 km/l)
CO2 emissions 172 g/km
Fuel Type Petrol (Gasoline)
Acceleration 0 – 100 km/h 9.9 sec
Acceleration 0 – 62 mph 9.9 sec
Acceleration 0 – 60 mph 9.4 sec
Maximum speed 218 km/h (135.46 mph)
Emission standard Euro 5
Weight-to-power ratio 10.1 kg/Hp, 99.4 Hp/tonne
Weight-to-torque ratio 6.4 kg/Nm, 155.3 Nm/tonne
Power 160 Hp @ 4500-6200 rpm
Power per litre 89 Hp/l
Torque 250 Nm @ 1500-4500 rpm (184.39 lb.-ft. @ 1500-4500 rpm)
Engine layout Front, Longitudinal
Engine Model/Code CDHB
Engine displacement 1798 cm3 (109.72 cu. in.)
Number of cylinders 4
Engine configuration Inline
Cylinder Bore 82.5 mm (3.25 in.)
Piston Stroke 84.1 mm (3.31 in.)
Compression ratio 9.6:1
Number of valves per cylinder 4
Fuel injection system Direct injection
Engine aspiration Turbocharger, Intercooler
Valvetrain DOHC
Engine oil capacity 4.6 l (4.86 US qt | 4.05 UK qt)
Kerb Weight 1610 kg (3549.44 lbs.)
Max. weight 2110 kg (4651.75 lbs.)
Max load 500 kg (1102.31 lbs.)
Trunk (boot) space – minimum 320 l (11.3 cu. ft.)
Trunk (boot) space – maximum 750 l (26.49 cu. ft.)
Fuel tank capacity 65 l (17.17 US gal | 14.3 UK gal)
Permitted trailer load with brakes (8%) 1500 kg (3306.93 lbs.)
Permitted trailer load with brakes (12%) 1300 kg (2866.01 lbs.)
Permitted trailer load without brakes 750 kg (1653.47 lbs.)
Permitted towbar download 80 kg (176.37 lbs.)
Length 4625 mm (182.09 in.)
Width 1854 mm (72.99 in.)
Height 1383 mm (54.45 in.)
Wheelbase 2751 mm (108.31 in.)
Front track 1590 mm (62.6 in.)
Rear (Back) track 1577 mm (62.09 in.)
Drag coefficient (Cd) 0.30
Minimum turning circle (turning diameter) 11.4 m (37.4 ft.)
Drivetrain Architecture The Internal combustion engine (ICE) drives the front wheels of the vehicle.
Drive wheel Front wheel drive
Number of gears and type of gearbox 6 gears, manual transmission
Front suspension Independent multi-link suspension
Rear suspension Independent multi-link spring suspension with stabilizer
Front brakes Ventilated discs
Rear brakes Disc
Assisting systems ABS (Anti-lock braking system)
Steering type Steering rack and pinion
Power steering Electric Steering
Tires size 225/55 R16
Wheel rims size 7.5J x 16

INTRODUCTION

The Audi A5 Cabriolet 8F7, launched in 2009, brought Audi’s design language and technological prowess to the open-top mid-size segment. Built on the Audi A4 (B8) platform – specifically the 8F7 designation for the Cabriolet – it offered a sophisticated alternative to rivals like the BMW 3 Series Convertible and Mercedes-Benz C-Class Cabriolet. The 1.8 TFSI variant, powered by the CDHB engine, was a key component of the A5 Cabriolet range, offering a compelling blend of performance and efficiency. It was positioned as the entry-level engine option, appealing to buyers who prioritized fuel economy and a more relaxed driving experience over outright speed.

Powertrain & Engine Architecture

The heart of the A5 Cabriolet 1.8 TFSI is the CDHB engine, a 1.8-liter inline-four cylinder powerplant. This engine is a member of Audi’s EA888 family, known for its robust design and tuning potential. The “TFSI” designation stands for Turbocharged Fuel Stratified Injection, indicating the engine’s key technologies. It utilizes direct fuel injection, delivering fuel directly into the combustion chamber for improved efficiency and reduced emissions. A single turbocharger, coupled with an intercooler, provides forced induction, boosting power output. The engine features a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, optimizing airflow for enhanced performance. The 1.8 TFSI engine produces 160 horsepower and 184 lb-ft of torque. The engine is longitudinally mounted, driving the front wheels through a six-speed manual transmission. While an automatic transmission (Multitronic CVT) was available, the manual was a common choice for those seeking a more engaging driving experience.

Driving Characteristics

The 1.8 TFSI-equipped A5 Cabriolet delivers a comfortable and refined driving experience. While not as overtly sporty as the higher-powered variants, it provides sufficient power for everyday driving and cruising. Acceleration from 0-60 mph takes approximately 9.4 seconds, and the car reaches a top speed of 135 mph. The turbocharger provides a noticeable boost in power, but the engine’s torque curve is relatively flat, offering good responsiveness across a wide range of engine speeds. The six-speed manual transmission is well-matched to the engine, providing precise shifts and allowing the driver to maintain control. Compared to the 2.0 TFSI, the 1.8 TFSI feels less urgent in its acceleration, but it offers a more relaxed and fuel-efficient driving experience. The front-wheel-drive configuration provides good traction in most conditions, but it can exhibit some torque steer under hard acceleration.

Equipment & Trim Levels

The A5 Cabriolet 1.8 TFSI typically came well-equipped, even in its base trim. Standard features included automatic climate control, a multi-function steering wheel, power windows and mirrors, and an Audi Concert audio system. Upholstery was typically cloth, but leather options were available. Optional extras included Audi’s navigation system, premium sound systems (Bose or Bang & Olufsen), heated seats, and parking sensors. The A5 Cabriolet’s interior design is characterized by its clean lines, high-quality materials, and user-friendly layout. The convertible top is a fully automatic fabric soft top, which can be raised or lowered in approximately 15 seconds at speeds up to 31 mph.

Chassis & Braking

The A5 Cabriolet 8F7 utilizes a sophisticated chassis design, featuring independent multi-link suspension at both the front and rear. This suspension setup provides a comfortable ride while maintaining good handling characteristics. The front suspension incorporates anti-roll bars to reduce body roll during cornering. The braking system consists of ventilated discs at the front and solid discs at the rear, providing ample stopping power. Anti-lock braking system (ABS) is standard, enhancing safety and control. The steering is a rack-and-pinion system with electric power assistance, offering precise and responsive steering feel.

Market Reception & Comparison

The Audi A5 Cabriolet 1.8 TFSI was generally well-received by automotive critics. It was praised for its stylish design, comfortable ride, and refined interior. The 1.8 TFSI engine was considered a good balance between performance and fuel economy, making it an attractive option for buyers who didn’t need the extra power of the 2.0 TFSI. However, some critics noted that the 1.8 TFSI engine could feel a bit underpowered, especially when the car was fully loaded with passengers and luggage. Compared to the 2.0 TFSI, the 1.8 TFSI offered better fuel economy, but it lacked the same level of performance. The 1.8 TFSI was also more affordable than the 2.0 TFSI, making it a more accessible option for a wider range of buyers.

Legacy

The Audi A5 Cabriolet 1.8 TFSI has proven to be a relatively reliable vehicle, with the CDHB engine generally considered durable. Common maintenance items include regular oil changes, spark plug replacements, and timing belt service. The turbocharger can be a potential point of failure, but it is generally reliable if properly maintained. In the used car market, the A5 Cabriolet 1.8 TFSI remains a popular choice, offering a stylish and affordable entry into the premium convertible segment. Its combination of comfort, refinement, and fuel efficiency makes it a practical and enjoyable vehicle for everyday driving.

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