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Another one of Volkswagen’s high-ranking officials has been reportedly suspended for having knowledge of the company’s recent diesel scandal activities, and not bringing it to the authorities.

The allegedly suspended 48-year old Frank Tuch, a former Lotus and Porsche employee who was recruited by former Volkswagen CEO Martin Winterkorn as the company’s head of quality control.

Germany’s Bild newspaper reported that incriminating evidence was uncovered against Tuch, who joined Volkswagen in 2008 – the same year the German car maker had began introducing the EA 189 four-pot turbodiesel engines into their cars, along with the defeat device.

Prior to Tuch’s alleged suspension, four other high-ranking Volkswagen officials have left the company – CEO Martin Winterkorn, Audi R&D boss, Ulrich Hackenberg, Volkswagen brand development chief and group powertrain head, Heinz-Jakon Neusser, and Porsche chief engineer, Wolfgang Hatz.

Volkswagen Polo Facelift 14

Yesterday, we reported that the diesel scandal could be gearing up for another huge development, should Volkswagen’s newer EA 288 engine also be found to have a version of the cheating software.

Available in two displacements, a 1.6 litre and a 2.0 litre four-pot turbodiesel, the EA 288 engines were designed for use in the brand’s latest generation of MQB platform-based vehicles, such as the Mk7 Golf, new Tiguan, and even the next-generation Jetta.

No solid evidence has been put forward yet, but should the report ring true, it could spell a much larger scale of recalls (more than the 11 million currently affected), sacked employees, or worse.