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Golf 3 GTI TDI

Originally a petrol 8v GTI, converted into a 110 hp GTI TDI.

Golf 3 GTI TDI
Golf 3 GTI TDI · Pajalle
01 / 3

Engine swap, part 1

Sorry, not translated yet :(

Golf 3 GTI TDI — photo 001

19:23. We start by stripping the front end. It only takes a few minutes on a mk3: disconnect a few electrical plugs, the bonnet release cable, coolant hoses...

Golf 3 GTI TDI — photo 002

...the bolts under the covers beside the indicators...

Golf 3 GTI TDI — photo 003

...and the others in the upper corners of the front panel.

Golf 3 GTI TDI — photo 004

19:27. Remove the little plastic clips from the arch liners and there we are: the front end is off.

Golf 3 GTI TDI — photo 005

Like this. A little more wiring to disconnect and a few bolts to undo...

Golf 3 GTI TDI — photo 006

21:20. ...and a couple of hours after starting, the engine is out.

Golf 3 GTI TDI — photo 007

Now to fit its replacement. A diesel, surprisingly enough. Equivalent to the engine in a genuine GTI TDI, although this one came from a 1999 Seat Ibiza. 110 hp and, among other things, a variable-geometry turbo.

02 / 3

Engine swap, part 2

Saturday. Things are looking worse. Comparing the Golf and Ibiza front-end and engine looms... different wire lengths, connector locations and colours. Peksi spent a long time looking for an AFN Golf loom, but they seem very scarce in Finland. Practically the whole day goes on puzzling over the Golf and Seat wiring diagrams, which aren't great. First we spend hours looking for the diagnostic wires...

Golf 3 GTI TDI — photo 008Golf 3 GTI TDI — photo 009Golf 3 GTI TDI — photo 014

...then the Ibiza instrument cluster causes trouble. No power, until Peksi finally realises it is missing an earth wire.

On top of all this, the immobiliser comes from a Transporter, so the wiring certainly isn't easy. It would have been simpler if whoever removed the Ibiza engine had also saved the immobiliser before taking the front end to the scrapyard.

Golf 3 GTI TDI — photo 011

Then the fuel tank and lines.

Golf 3 GTI TDI — photo 012

Sunday morning, engine installed. Much of the wiring connected, plenty still to do. Besides the immobiliser, several other useful bits went to the scrapyard with the front end, including a whole bundle of vacuum hoses and other small parts.

After the engine, the exhaust. The next problem was the front exhaust hanger, which didn't seem to get along with the petrol GTI's anti-roll bar.

Golf 3 GTI TDI — photo 013

Next, the intercooler.

Golf 3 GTI TDI — photo 015

By Monday evening almost everything is together; just the Transporter immobiliser to sort out. We managed to teach it the key, then ran into trouble pairing it with the ECU.

Tuesday. Project finished. The immobiliser behaved itself and agreed to pair with the ECU. Test drives done, plenty of pull... now for some cheap diesel motoring. Well, the modification inspection first, of course...

03 / 3

Some tuning

Golf 3 GTI TDI — photo 016

Angel Eyes headlights.

Golf 3 GTI TDI — photo 017

Peksi narrowed the number-plate recess in the tailgate.

Golf 3 GTI TDI — photo 018

The tailgate trim also had to be narrowed. The piece behind it is the Corrado's grille spoiler. From now on a solenoid will open the tailgate.

Golf 3 GTI TDI — photo 019

The tailgate fitted.

Golf 3 GTI TDI — photo 020

The Golf's winter look. This car was eventually sold in late 2004.

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Includes original English text and AI-assisted translations.