Hi, can anyone tell me if the 1.0L ALD engine will directly replace the 1.0 AUC engine? They look identical, the ALD was the older unit, I'm not sure what (if any) difference there is between them to warrant a code change. I need to keep my options open as far as getting a replacement engine goes.

Current engine has big end wear as a result of poor maintenance and over 100K miles, since the crankshaft is not removeable without twisting the main bearings (according to VW) I think it's not viable to have it reground and new shells fitted. I suspect just fitting shells would probably fail very quickly. I've not inspected the crank, but the camshaft bearings are visibly scored, the breathers have been blocked and I suspect crud has been circulated with the oil.

Looking for a good engine of this type if anyone has one, or even a cheap complete car (write-off)