Gas and Diesel have a different starter. The mk1-2-3 diesel with exception to the late mk3 tdi were the same.. But nearly twice as powerful as a gas starter.
...BTW your Bieber avatar is awesome.-Malone
8v, you can use a TDI auto starter on the old 020, but it is the ALH auto...don't know if the AHU even had an auto option.
On rock auto looking at pics the 1z auto starter looks identical to an 020 1.6 starter. Standard trans starter definitely not the same though.