what is the ultimate difference between these three valves? are they all present in the 1.8T engine? and what are their functions?
part number: 026 906 283J
part number: 034 906 283J
part number: 028 906 283
Thanks.
part number: 026 906 283J
part number: 034 906 283J
part number: 028 906 283
Thanks.