A facelifted version of the Volkswagen Touareg has been spied undergoing high altitude testing in the European Alps.

The Volkswagen Touareg snapped by CarAdvice's spy photographers appears to hint at only a mild refresh for the full-size SUV, coming three years after the second generation debuted in 2010.

Despite the light camouflage wrapped around the front and rear ends of the car, a different front bumper and grille can be made out.

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While the headlight graphics mirror the current model’s, these are expected to be swapped before the car’s official unveiling.

At the rear, the tail-lights will follow the trend set by the new Golf R and replicated in the recently updated Tiguan, of housing squarer LED items.

The Touareg’s all-diesel engine line-up is also due to be updated, with some suggesting a four-cylinder unit could be included in a bid to offer buyers better efficiency.

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While not pictured, the interior and infotainment systems are also set to be updated.

The facelifted Volkswagen Touareg isn’t expected in showrooms for at least another 12 months.

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