The new Golf Cabriolet - Sustainable performance is feasible

The 6 turbo direct-injection engines are ideal for cruising with a cabriolet. They cover a power range from 77 kW / 105 PS to 155 kW / 210 PS. Also fun is the fast and fuel-efficient high-tech dual clutch transmission (DSG), which is available with 4 of the engines. One petrol engine (TSI) and both diesels (TDI) will be available with energy-saving BlueMotion Technologies (battery regeneration and Stop/Start systems). Illustrating just how efficiently the new Volkswagen utilises fuel is the Golf Cabriolet 1.6 TDI with 105 PS with BlueMotion Technology: it offers a combined fuel consumption of just 4.4 l/100 km (equivalent to 117 g/km CO₂).

Overview of powertrain versions

1.2 TSI – 77 kW / 105 PS (6-speed)
1.4 TSI – 90 kW / 122 PS (6-speed, optional 7-speed DSG)
1.4 TSI – 118 kW / 160 PS (6-speed, optional 7-speed DSG)
2.0 TSI – 155 kW / 210 PS (6-speed DSG)
1.6 TDI – 77 kW / 105 PS (5-speed)
2.0 TDI – 103 kW / 140 PS (6-speed, optional 6-speed DSG)

Details of the 4 petrol engines

1.2 TSI with 77 kW / 105 PS: The turbocharged 1.2-litre four-cylinder engine observes the TSI downsizing principle with just 1,197 cm3 engine displacement. It offers maximum power with minimal fuel consumption. The BlueMotion Technology pack is available as an option in this Golf Cabriolet version. The 77 kW / 105 PS Cabrio accelerates from a standstill to 100 km/h in 11.7 seconds. Its top speed is 188 km/h. This contrasts with fuel economy and emission values that set standards for open-top cars with petrol engines: 5.9 l/100 (139 g/km CO₂) in the standard version or 5.7 l/100 km and 132 g/km CO₂ with BlueMotion Technology. The 1.2 TSI outputs its maximum power at 5,000 rpm. Its maximum torque of 175 Newton metres is available between 1,550 and 4,100 rpm. The 1.2 TSI is delivered with a 6-speed manual gearbox as standard.

1.4 TSI with 90 kW / 122 PS: At the next power level, the new Golf Cabriolet is driven by an efficiently operating 1.4-litre TSI with 90 kW / 122 PS (at 5,000 rpm). This engine may be combined with a 7-speed dual clutch transmission as an option. Both versions will follow this autumn. The four cylinder engine develops its maximum torque of 200 Newton metres between 1,500 and 4,000 rpm. (All fuel economy and driving performance data for the Golf Cabriolet 1.4 TSI with 122 PS cited in this press release are forecast values.)

With a combined fuel consumption of 6.4 l/100 km (equivalent to 149 g/km CO₂), the turbo engine makes the cabriolet with manual gearbox one of the most fuel-efficient cars in its power class. The 122 PS TSI can attain a top speed of 197 km/h. This Golf Cabriolet covers the classic 0-100 km/h sprint in 10.5 seconds. Driving performance is identical in the DSG version; its combined fuel consumption is even better at 6.3 l/100 km (147 g/km CO₂).

1.4 TSI with 118 kW / 160 PS: The twincharger with 118 kW / 160 PS (at 5,800 rpm), which is boosted by both turbocharging and supercharging, may also be combined with a 7-speed DSG. It is exactly as fuel efficient as the smaller 1.4 TSI. Combined fuel consumption with a manual gearbox is 6.4 l/100 km (here: 150 g/km CO₂); when shifted by DSG, fuel consumption is reduced to 6.3 l/100 km (148 g/km CO₂). The TSI develops a maximum torque of 240 Newton metres between 1,500 and 4,500 rpm. In both transmission versions, the Golf Cabriolet with this engine reaches 100 km/h in 8.4 seconds; its top speed is 216 km/h.


2.0 TSI with 155 kW / 210 PS: At the highest power level, the Golf Cabriolet is driven by a 155 kW / 210 PS (at 5,300 rpm) TSI. In this case, the engine's power reaches the front wheels via a 6-speed DSG as standard. And it does so very fuel efficiently, despite the added power: per 100 km it consumes 7.5 litres (equivalent to 175 g/km CO₂), which is directly injected into the up to 280 Newton metres (from 1,700 rpm) torque-strong 16-valve engine. Despite this, it attains a top speed of 235 km/h. The Golf Cabriolet 2.0 TSI covers the sprint to 100 km/h in 7.3 seconds. (All fuel economy and driving performance data for the Golf Cabriolet 2.0 TSI cited in this press release are forecast values, since this version will also follow in late autumn.)

Details of the 2 diesel engines

1.6 TDI with 77 kW / 105 PS: Entry to the TDI programme is offered by the 1.6-litre four cylinder engine with 77 kW / 105 PS (4,400 rpm) and a maximum torque of 250 Newton metres (1,500 to 2,500 rpm). As an option, this TDI version may be equipped with the BlueMotion Technology (BMT) pack (Stop/Start system and battery regeneration). The combined fuel consumption of the Golf Cabriolet 1.6 TDI plus BlueMotion Technology is just 4.4 l/100 (equivalent to 117 g/km CO₂). Corresponding values without BMT are 4.8 l/100 km and 125 g/km CO₂. In each case, the open-top Golf 1.6 TDI is the most fuel-efficient Volkswagen cabriolet ever. Both versions reach the 100-km/h speed mark in 12.1 seconds; and their top speed is 188 km/h.

2.0 TDI with 103 kW / 140 PS: The most powerful common rail TDI of the Golf Cabriolet is a 1,968 cm3 displacement four cylinder engine with 103 kW / 140 PS (at 4,200 rpm); this TDI is combined with the BlueMotion Technology pack as standard. The engine being introduced this autumn will be available with 6-speed DSG as an option.

From a low 1,750 rpm, the TDI develops a maximum torque of 320 Newton metres (up to 2,500 rpm). These key performance parameters of the four cylinder engine accelerate the Golf Cabriolet to 100 km/h in just 9.9 seconds; its top speed is 207 km/h. For the DSG version, the top speed is slightly less at 205 km/h. As would be expected, the combined fuel consumption of the Golf Cabriolet 2.0 TDI is exceptionally low: 4.5 l/100 km with manual gearbox, 5.1 litres in the DSG version. The equivalent CO₂ values are 119 g/km and 134 g/km (DSG). (All fuel economy and driving performance data for the Golf Cabriolet 2.0 TDI cited in this press release are forecast values, because this version will also follow in late autumn.)

BlueMotion Technologies in detail

Stop/Start system: The driver approaches a red light, brakes the Golf Cabriolet to a stop, shifts into neutral and takes the foot off the clutch (with DSG it is sufficient to press the brake pedal). This causes the engine to shut off momentarily. In the multifunction display the text "Start (A) Stop" appears. As soon as the traffic light turns green again, the driver depresses the clutch (or with DSG simply releases the brake), and the engine starts, the "Start (A) Stop" text is cleared, the driver engages a gear and resumes driving. Essentially, the driver does not need to perform any extra operating steps compared to a conventional car, yet saves up to 0.2 l/100 km in the city using the Stop/Start system.

Unlike vehicles without the Stop/Start system, the BlueMotion Technology models have an extra battery data module (for acquiring momentary battery charge status), a heavy-duty engine starter, a DC/DC converter (guarantees voltage stability in the vehicle's electrical system) and an exceptionally durable deep-cycle glass mat battery on board.

Battery regeneration: Regeneration helps to utilise the energy expended in driving as ideally as possible. During coasting and braking phases of the Golf Cabriolet – i.e. whenever the driver releases the accelerator pedal or brakes – the system elevates the voltage of the alternator (generator), and this electricity is used to bulk charge the vehicle's battery. Thanks to this alternator control as a function of engine efficiency, and the optimally charged battery that results, the voltage of the alternator can be reduced whenever this is desirable – e.g. when accelerating or while constantly maintaining a desired speed. The alternator may even be shut off entirely. This relieves engine load, which in turn reduces fuel consumption. In addition, the battery - always optimally charged - supplies the vehicle's electrical system with sufficient energy during the stopped phase of the engine (e.g. at traffic lights). Battery regeneration requires special software for energy management and modified engine controller software.

6-speed and 7-speed DSG

Except for the TSI and TDI with 77 kW / 105 PS, all other engines of the new Golf Cabriolet may be combined with a dual clutch transmission (DSG). It is either a 6-speed or 7-speed DSG, depending on engine torque values. Both DSG versions are characterised by maximum economy and shifting dynamics, which have never been attained to this extent before. Besides having different numbers of forward gears, another way in which the DSG systems differ technically is in their clutch types. While two dry clutches are used in the 7-speed DSG, the dual clutch of the 6-speed DSG runs wet in an oil bath. True of both gearboxes: even the most experienced professional drivers do not shift at nearly the speed of the DSG versions. More than any other automatic, the dual clutch gearboxes have the potential to reduce fuel consumption and thereby emissions. Compared to an automatic with torque-converter clutch, fuel efficiency gains may be as much as 20 percent, depending on the engine.


Notes:
TDI, TSI, DSG and Twincharger are registered trademarks of Volkswagen AG or other companies ofthe Volkswagen Group in Germany and other countries.
Features and technical data apply to models offered in Germany. They may differ in other countries.