In 2012 VAG introduced a new version of their 1.4 TFSi petrol engine. This engine is equipped with CoD technology (Cylinder on Demand) which allows the engine to switch between 2 and 4 cylinder running modes to maximise efficiency. The engine design also meant the need for new camshaft locking tools.

Technical Bulletin: It has come to our attention if component C734 is over tightened when fixed to the cylinder head, it will push the inlet camshaft inner shaft to one side resulting in a misfire and generating engine fault codes (ACT or COD error codes). To correct the fault the camshaft pulley and shaft assembly must be pushed back into their original alignment position.