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Discussion Starter · #1 ·
Okay, I was browsing the classified forums and there was a guy who was selling non ABS MkIII master cylinders. He said that they are the same size as the 16V rocco (22mm I think) and work just as well. Can anyone verify this? Can you actually use these MCs and they will bolt right up? TIA!

-Gordon
 

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Re: Can you use a MkIII MC instead of the 16V scirocco MC? (VWgordo)

If I remember correctly it has been a while but Autotech's sport master cylinder for the A1 upgrade to 10.1 front disks and rear disk brakes is the A3 master cylinder. Give them a call and ask?
 

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Discussion Starter · #4 ·
Re: Can you use a MkIII MC instead of the 16V scirocco MC? (GTIZRX)

Will do, thanks! http://****************.com/smile/emthup.gif
 

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Re: Can you use a MkIII MC instead of the 16V scirocco MC? (VWgordo)

I don't know if the bolt pattern is the same on the two, I know the mk3 master cylinder won't fit a stock rabbit booster though. I ended up using the booster out of a 2.0 16v passat, with the mk3 master cylinder. I had to make the booster pushrod about 3/4" longer for it to work with my stock pedal cluster.
 

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Re: Can you use a MkIII MC instead of the 16V scirocco MC? (white rabbit)

I dont think an ABS one will work but a non ABS will, IIRC!
 

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Discussion Starter · #7 ·
Re: Can you use a MkIII MC instead of the 16V scirocco MC? (bahnblitz)

Okay, I already bought a 16V rocco pedal cluster, its just not here yet. Also, I know where I can get a MkIII MC, hopefully non ABS and hopefully cheap. I guess all I need now would be a 16V scirocco booster.
 

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Re: Can you use a MkIII MC instead of the 16V scirocco MC? (VWgordo)

you definetly need the 16V booster for the 22mm master. once you do the switch, the pedal cluster is a straight forward swap. a good time to buy some ratchet metric wrenches because its next to impossible to reach around the booster to loosen the 3 nuts holding it.
 

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Re: Can you use a MkIII MC instead of the 16V scirocco MC? (Steve H)

Quote, originally posted by Steve H »
you definetly need the 16V booster for the 22mm master. once you do the switch, the pedal cluster is a straight forward swap. a good time to buy some ratchet metric wrenches because its next to impossible to reach around the booster to loosen the 3 nuts holding it.

So true I just helped a buddy do that last night, royal pain in the arse
 

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Discussion Starter · #10 ·
Re: Can you use a MkIII MC instead of the 16V scirocco MC? (VWgordo)

Good news. Today I went to the local yard and scored a nice (non ABS) MC off a '94 Jetta for $20!
Since I already have a rocco 16V pedal cluster bought, all I need now is a booster and a good set of 10.1 front calipers. Brake system is almost complete now.
 
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