2015 VW Jetta TDI: a more refined, powerful and efficient diesel within a nicely redesigned model line
Green Car Congress
OCTOBER 7, 2014
liter diesels currently fitted in Audi and Volkswagen TDI Clean Diesel models. The aluminum-alloy cross-flow cylinder head has a novel placement of intake and exhaust valves; the intake and exhaust ports for each cylinder are positioned one behind the other in the direction of flow. Top: Valve layout. crank angle.
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