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156 v6

Alfa 156 V6 diff damaged

Hi guys,

My car is a 2000 plate so its unfortunately not really worth spending thousands on a garage to replace it, the gearbox is fine and i have a spare clutch, how easy is it to replace the diff and is there anywhere i can obtain an instruction guide..?
Also the bulbs have died in the blower and temp controll how do you replace these i dont want to start ripping the dash apart?

Thanks guys.
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Re: Alfa 156 V6 diff damaged

Sorry to hear about your troubles..

Diff replacement:
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Re: Alfa 156 V6 diff damaged

Its £500 quid at somewhere like AutoLusso to fit a limited slip diff might be more cost effective, part cost is 1/2 of that.

If you're anywhere near Bristol or Swindon I have a diff in my garage you can take away if you like, I don't need it, its for a 1.9 JTD 16v but I think all V6s have the same diff.

Of course I can't really comment on its quality, I had driven 40k on it, with some harsh trackdays so who knows, it hadn't failed I changed it for a Q2 diff.
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Re: Alfa 156 V6 diff damaged

Walter, same thing happened to mine (1999 car). Unfortunately you may think your gearbox is fine and indeed it probably was before this happened - once you get inside it though you'll most likely find there are bits of diff scattered throughout the gearbox, some of which you will never retrieve without stripping the whole thing down.

I had my gearbox rebuilt and a Q2 (limited slip) diff fitted by Auto Lusso near Luton, as recommended above. The cost was slightly bum-clenching but the improvement with the Q2 is absolutely immense.

If you really do fancy going about it yourself then you can pick up a Q2 diff from Alfa Romeo Parts and Alfa Romeo Spares from EB Spares - Specialist Alfa Parts Dealers and follow the guide linked above. Unfortunately thoguh I doubt you'll get away with not stripping the gearbox as some of those little bits of diff are bound to come back to haunt you not too far down the line. Chris has also posted a guide on stripping down a V6 gearbox here: and the thread I posted when my diff went is here: (Argh!! Clunk clunk :()

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Re: Alfa 156 V6 diff damaged

To get to the bulbs the centre console front has to come out, along with the radio. Once that's out you can take the a/c controls out and replace the bulbs. They come in their own holders, so these are dealer only unless you are good with a soldering iron, then you might be able to replace just the bulbs with the capless variety (1.2W #286).
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