2013 The new Toyota Corolla DPL: Fuel efficient petrol and diesel powertrains

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The new 2013 Corolla delivers lower emissions and class-leading fuel economy across the entire engine range, offering customers attractive cost-of-ownership benefits.

The line-up features a choice of a 1.4 litre D-4D turbodiesel and four petrol engines a 1.33 litre Dual VVT-i unit, a 1.6 litre engine available with Dual VVT-i and Valvematic systems, and a new 1.8 litre Dual VVT-i.

The 1.8 litre Dual VVT-i petrol engine is fitted, as standard, with a new, high gear, high efficiency Multidrive S automatic transmission. All other engines in the line-up are fitted with six-speed manual transmissions. The 1.4 D-4D unit may also be mated to Toyota's MultiMode automated manual transmission, and both 1.6 litre petrol engine variants may be equipped with the new Multimode S automatic gearbox.

A selection of engines feature the performance- and economy-enhancing benefits of Toyota Optimal Drive, and every engine meets emissions standards up to Euro 5+. Moreover, several key features further contribute both to lower emissions and the new Corolla's status as the most fuel efficient vehicle in its segment

As fully described in the Design chapter, a comprehensive aerodynamics package equips the new Toyota with a drag coefficient of just Cd 0.27. In addition, the new Corolla range benefits from a reduction in vehicle weight, the adoption of Low RRC (Rolling Resistance Coefficient) tyres, the implementation of Valvematic technology, the replacement of the conventional four-speed automatic transmission with a new Multidrive S automatic gearbox, and the availability of both an Eco driving mode and a Stop & Start system.

Toyota Optimal Drive[4]

Toyota Optimal Drive showcases a combination of wide-ranging advanced technologies and internal improvement programmes designed to optimise the balance of performance and driving enjoyment with fuel economy and low emissions.

These diverse core technologies focus on three key aspects of powertrain development:

Firstly, the reduction of powertrain weight through the use of lightweight and highly compact engine components and transmissions throughout the new Corolla engine range.

Secondly, the minimisation of pumping losses through the adoption of Valvematic -a further development of VVT-i -in the 1.6 petrol engine, roller rocker technology and smaller, lighter pistons in the petrol engines, low viscosity oil, six-speed manual transmissions and a new Multidrive S automatic gearbox.

Thirdly, the maximisation of combustion efficiency. This has been achieved within the new Corolla petrol engine range through the use of compression ratios of 11.5:1, Valvematic, the refinement of intake port and combustion chamber design, and piston cooling by oil jet. The 1.4 litre D-4D diesel engine benefits from an optimised combustion chamber dimensions and enhanced Exhaust Gas Recirculation (EGR) cooler efficiency.

1.33l Dual VVT-i Petrol Engine

The 1.33 litre petrol engine is equipped with Dual Variable Valve Timing-intelligent (Dual VVT-i) and a high compression ratio of 11.5:1, which increases the thermal efficiency of the engine. It generates 73 kW/ 99 DIN hp and maximum torque of 128 Nm at 3,800 rpm.

Mated to a six-speed manual transmission, this excellent dynamic performance is combined with fuel consumption of just 5.6 l/100 km and CO₂ emissions lowered from 136 to only 129 g/km.

Profiting from Toyota's extensive motorsport experience, the small bore, long stroke unit is exceptionally lightweight and compact, improving the vehicle's power-to-weight ratio. It features a resin-type cylinder head cover and intake manifold, and the intake channel has been streamlined to optimise airflow for improved combustion efficiency.

Dual VVT-i helps boost response levels across the entire rev range by varying the air-fuel intake and exhaust valve timing to suit the conditions at any given time. In addition to improving torque at low and medium engine speeds, the system also reduces emissions and enhances fuel efficiency.

1.6l Dual VVT-i Petrol Engine

Available with either a six-speed manual or new Multidrive S automatic transmission and also benefitting from the Dual Variable Valve Timing-intelligent (Dual VVT-i) technology described above, the 1.6 litre Dual VVT-i petrol engine develops 90 kW / 122 DIN hp and a maximum torque of 154 Nm at only 5,200 rpm.

When equipped with the manual transmission the unit returns a combined cycle fuel consumption of 6.6 l/100 km and generates CO₂ emissions of 157 g/km. The new CVT transmission further reduces both fuel consumption and emissions, to 6.3 l/100 km and 150 g/km respectively.

1.6l Valvematic Petrol Engine

Valvematic is a further development of Toyota's highly successful Dual Variable Valve Timing-intelligent (Dual VVT-i) system.

Valvematic takes VVT-i technology a step forward by adding lift and duration control to the inlet valve variable timing. This improves intake airflow volume and speed management -and, subsequently, combustion process management- to deliver 7% more power for 8% less fuel consumption, with reduced CO₂ emissions. The adoption of Valvematic further reduces friction and pumping losses under light engine loads, further lowering fuel consumption.

Valvematic efficiency is further improved through the adoption of a variable length inlet manifold. This acts as an accelerator at low to medium engine speeds, maximising inlet air speed for optimum combustion efficiency. At higher engine speeds the manifold is fully open. This allows air to travel via a shorter route, maximising the volume of air entering the combustion chamber and, hence, engine power output.

Available with either a six-speed manual or new Multidrive S automatic transmission, the 1.6-litre Valvematic engine develops 97 kW / 132 DIN hp and a maximum torque of 160 Nm at only 4,400 rpm.

When equipped with the manual transmission the unit returns a combined cycle fuel consumption of 6 l/100 km and generates CO₂ emissions of only 139 g/km.

The new Multidrive S transmission reduces fuel consumption to 5.6 l/100 km and emissions to 130 g/km the latter a substantial reduction of 20 g/km over that of the previous generation 1.6 litre VVT-i engine mated to a conventional 4-speed automatic transmission.

1.8l Dual VVT-i Petrol

Replacing the 2.4 litre unit of the outgoing model range, a new 1.8 litre petrol engine is fitted, as standard, with a new, high gear, high efficiency Multidrive S automatic transmission.

Benefitting from the Dual Variable Valve Timing-intelligent (Dual VVT-i) technology described above, the 1.8 litre, 16V, DOHC Dual VVT-i petrol engine develops 103 kW / 140 DIN hp at 6,400 rpm, and a maximum torque of 173 Nm at 4,000 rpm.

Equipped with the new Multidrive S transmission, the unit returns a combined cycle fuel consumption of 6.4 l/100 km and generates CO₂ emissions of only 152 g/km.

1.4l D-4D Diesel Engine

Available with either a six-speed manual or six-speed MultiMode transmission, the Euro 5+ compliant 1.4 litre D-4D engine develops 66 kW / 90 DIN hp and maximum torque of 205 Nm at only 1,800 to 2,800 rpm.

Available with Stop & Start technology in the new Corolla, the 1.4 D-4D turbodiesel unit also benefits from improved Toyota Optimal Drive technology, maximising performance and driveability whilst minimising fuel consumption, and CO₂ and particulate emissions.

A 2-step hydraulic control valve is installed in the timing chain cover. This has the benefit of reducing friction when hydraulic pressure is low by opening and closing the relief valve based on driving conditions.

Engine warm-up time is minimised through the installation of a coolant by-pass system that helps to reduce heat losses in engine coolant during start-up.

Piezoelectric injectors control the fuel volume and the timing of the injection more accurately. The high speed reaction time of Piezo injectors makes multi-phase high speed injection possible. This has the effect of both lowering the rate of combustion expansion and effecting a more thorough burn within the combustion chamber, thus further reducing particulate, NO_x and CO₂ emissions.

This, allied to high common rail injection pressures of 160 Mpa, results in shorter injection times, combining a faster engine response with improved fuel economy and reduced CO₂ emissions.

When equipped with a six-speed manual transmission and Stop & Start technology, the 1.4 D-4D unit returns a combined cycle fuel consumption of 3.8 l/100 km and generates CO₂ emissions of only 99 g/km —a reduction of 26 g/km.

Multidrive S Automatic Transmission

A new, high gear, high efficiency Multidrive S automatic transmission is fitted as standard on the 1.8 petrol version of the new Corolla and available as an option with both VVT-i and Valvematic variants of the 1.6 litre petrol engine.

Developed for its compact size, light weight and fuel efficiency, the new, metal belt-type Multidrive S features a torque converter and fully electronic, 'multidrive' oil pressure control.

Offering drivers a wider transmission ratio band, a more responsive gear change and better fuel economy than the outgoing 4-speed automatic transmission, Multidrive S may be operated in three modes: A fully automatic, seamless shift mode, Sport mode, or a 7-speed Sport Sequential Shiftmatic mode.

In automatic mode, the system is optimised for quietness and fuel economy, precisely matching the transmission to the engine at all times by monitoring accelerator pedal angle, vehicle speed and braking force.

In 7 speed sport sequential shiftmatic mode, the step position can be selected by the selector lever or shift paddle switch. In Sport mode, the system is optimised for response and direct engine control. On detecting deceleration, the system downshifts and applies engine braking to assist the braking force. On corner exit, predictive downshift logic controls the system to ensure the optimal gear ratio is selected for required level of acceleration.

For an even more sporting driving experience, the 7-speed Sport Sequential Shiftmatic mode offers drivers manual override control of the transmission, operable by the gearshift lever. In this mode, the transmission performs close ratio upshifts in perceptible steps, and has a direct downshift feeling under braking and deceleration.

MultiMode Transmission

Available on the 1.4 D-4D diesel version of the new Corolla, MultiMode is an automated manual transmission with a fully automatic shift mode and no clutch pedal. It offers the driver a choice of two, fully automatic gear change modes or a manual, sequential gear change with steering wheel-mounted shift paddles.

Selecting E (Economy), M (Manual) or R (Reverse) allows the car to 'creep' in the manner of a conventional automatic. In E mode, the car makes automatic gear shifts that will maximise fuel economy. Selecting ES (Sport) mode will delay changing up to a higher rpm, giving a more sporting style of drive.

Stop & Start Technology

Now available with the 1.4 litre D-4D diesel engine, Toyota's Stop & Start system automatically switches off the engine when the vehicle is stopped.

Featuring an immediate restart with virtually no engine sound or vibration, the system delivers significant reductions in CO₂ emissions during urban driving, and can lead to noticeably lower average fuel consumption, depending on driving conditions.

Stop & Start automatically stops the engine when the shift lever is moved to the neutral position and the clutch pedal is released, enhancing fuel economy. The engine will automatically restart, within less than half a second, when the clutch pedal is depressed.

Toyota Stop & Start technology allows for the continued operation of the air-conditioning system, and idling stop time when the air conditioning is in use has been expanded.

With the air-conditioning in use, the engine will not stop if the desired cabin temperature has not been reached. When that temperature is reached, the air-conditioner will switch, allowing the engine to automatically stop. The engine will automatically restart in the event of low battery charge, or if the vehicle begins to move, in the interest of safety.

When the driver door is open or driver seatbelt is unbuckled during idling stop, the system pre-starts the engine to warn the driver.

In conjunction with the Stop & Start system, an 'ECO' indicator will illuminate during every automatic stop. An ECO counter also displays the elapsed time of stops during each drive, and a re-settable ECO odo-counter displays the vehicle's total accumulated idling stop time.

[1] All fuel consumption and emissions data should be taken as indicative, subject to final homologation

[2] Not all engines and transmissions are launched in all European markets. For more information please contact your national PR manager

[3] Only available on the diesel version

[4] Available only on Valvematic and diesel versions