Sorry to bump an old thread but wanted to update this incase someone else like me has a 1.4tfsi engine with a strange noise / ticking when in ECO mode. (kinda like a cinema projector. frrrrrrrr or trrrrrrr).The issue is the Turbo Actuator.(the internal rod vibrates in 2 cyclinder mode). Not
necessarily the linkage. Replacing the Turbo 'should' of fixed it, thats if they did replace the turbo as the actuator comes with the turbo. it is not injectors working harder or anything like that. You can hear a click when 2 cyclinder kicks in and out but that should be it. I had my turbo replaced and cured this issue.