The BMW-sourced 1.6L diesel in the Toyota Verso
17 December 2013
The enhanced 2014 Toyota Verso features an expanded engine line-up which introduces a new 1.6 liter D-4D turbodiesel, sourced from BMW. (Earlier post.) Since the initial launch of the European market Verso in 2002, cumulative sales have risen to more than 700,000 units. Built exclusively at Toyota Motor Manufacturing Turkey, the current Verso has sold some 37,000 units since its launch in 2013, increasing the company’s C-MPV segment share to 4.8%.
Diesel engine sales continue to dominate the European market in the C-MPV segment, and 1.6-liter variants currently account for more than 50% of sales.
|2014 Verso. Click to enlarge.||New 1.6L D-4D. Click to enlarge.|
The engine for the 1.6 D-4D is mated to a Toyota 6-speed gearbox. 20 kg (44 lbs) lighter than the 2.0 D-4D powerplant, this Euro 5 compliant engine develops 112 DIN hp/82 kW at 4,000 rpm and 270 N·m (199 lb-ft) of torque from 1,750 to 2,250 rpm. It accelerates the Verso from 0-100 km/h in 12.7 seconds, and on to a top speed of 185 km/h (115 mph).
The engine delivers an 8% improvement in fuel efficiency over the 2.0 D-4D unit, equating to fuel consumption of 4.5 l/100 km (52 mpg US) in the combined homologation cycle. Simultaneously, CO2 emissions have reduced from 129 to 119 g/km.
These figures are supported by the first Stop & Start system in the Verso range.
Several engineering challenges were key to the successful integration of the new 1.6 D-4D engine. All electrical interfaces were redesigned, and a newly-developed dual-mass flywheel was fitted to optimise noise and vibration.
New engine mounts offer particularly low vibration characteristics, especially under Stop & Start operation, minimizing Noise, Vibration and Harshness (NVH) and offering quiet running at cruising speeds.
The engine itself has been tuned to deliver a fast throttle response throughout the rev range. It generates good initial response at low rpm, then, as turbo boost develops, provides a linear torque build-up. The availability of torque has also been stretched, so the engine will happily rev beyond 3,000 rpm without running out of breath.
With ride quality already assured on the existing Verso, spring settings have been modified for the new 1.6 D-4D version to replicate the same levels of body control and ride comfort.
The addition of the 1.6 D-4D unit to the model range increases the engine line-up to a choice of 6 powerplants—150 DIN hp and 177 DIN hp versions of the 2.2 D-CAT diesel, a 124 DIN hp 2.0 D-4D diesel, the new 112 DIN hp 1.6 D-4D, and a choice of 1.6, 132 DIN hp and 1.8, 147 DIN hp Valvematic gasoline engines.
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