So my understanding is all the VAG 1.9tdi engines are essentially the same, but all have different codes and outputs? My BRS engine is apparently on its last legs, breakers want a huge amount for any engine labelled 'transporter' but golf, Passat, a4 engines are all cheap. I know the main difference between BRS BRR and AXB AXC is the crank sensor which is in the rear crank oil seal so I matched that part number with a whole bunch of engine codes from VAG cars, so they have the same sensor. But what else is different? Manifold, turbo, EGR all look different on these various engine but I can swap all that, cam cover looks a little different on some, also can be swapped. I couldn't find much on the forum or elsewhere about the BRS or BRR engine compatibility. Anyone managed it? :*