Has anyone experience of what is involved to change an SDI engined Octy 1 to a TDI......all parts are available from the donor Tdi inc. Engine / box / turbo / hoses / intercooler / ecu / electrics / drive shafts etc. etc.

I suspect that the plumbing / wiring in the engine bay is "similar" and the change would not be that hard as a result? Thanks:)

Depending on how cheap the TDI is, the option would be go buy a TDI and chop in the SDI.

If you have the whole car then you have everything you need and the electrics are probably the hardest bit in terms of it just not swapping I'd think.

I think you'd need to strip the TDi engine bay of pretty much everything except the lighting, heating and wash wipe electrics.

Also, which TDi is it, since the 130 used different front hub carriers, and calipers, and the 110 used different size discs to the SDi (The 90 might have too)?

Its not a cheap way to go about getting a tdi, unless you already have the tdi donor sitting, and you've blown up the sdi engine or had a cambelt failure or summat. It'd be much easier, faster, and convenient to just sell the sdi and buy a tdi. As above, you'll be transplanting half the running gear, braking, ecu. loom, engine, g'box dash clocks etc etc etc. The list goes on and on...

Hi Eddie,

The brakes are different on the SDi, so you won't have good braking. But it won't be any worse, weight is similar.

Gearbox is different but loom is about the same, so pretty much pull the engine + box + piping/intercooler etc and either fit the loom or if you don't need to just swap ECU. You'll need the ECU to be coded to the immobliser on the instrument panel, or you can use the instrument panel from the old car (or it won't work).

Exhaust different, not sure about hubs but as you have the lot....

It should not be a lot more difficult than pulling an engine. To look at and work on, it's very similar other than the intake side of things.

As others have said, far easier to just buy a tdi. But that wasn't your question was it

Greg.