Well, I am far from an expert, but I thought, the "turbo diesel", at least here in France, was the model(s) 90/110, year 88 and 89. The Tdi(much improved,) started in 1991. https://www.land-service.com/fr/13-defender-90-1983-2016 I buy my parts here...Again, I am no mechanic and just love my...