While on the subject of ALDA here is my take, on my turbo Om 616 Euro-I spec engine, there is no ALDA but on later Euro-II to Euro-IV spec, the ALDA has been incorporated along with other electronic IP controls, having driven both versions, I find the Euro-I non ALDA engine to have a much better throttle response although at a cost of little knock at certain RPM, the ALDA version is quieter but the response isn't that good.