[A4] Clutch Woes - Round 2

richard valasek rrv53 at comcast.net
Thu Jun 5 20:49:21 PDT 2008

Richard: You definitely need to power bleed the system--nothing esle will 
work--believe me I tried with ruined parts as a result.
98 A$ 1.8tq

----- Original Message ----- 
From: "Richard Hurt" <rnhurt at gmail.com>
To: "Nicholas Stock" <nickstock at gmail.com>
Cc: "A4 Mailing List" <a4 at audifans.com>
Sent: Tuesday, June 03, 2008 7:30 PM
Subject: Re: [A4] Clutch Woes - Round 2

> Thanks for the feedback.  I can confirm that there is no nipple on the
> master cylinder as I just replaced it and have the old one to reference.
> Bleeding from the slave nipple is what the Bentley recommends, however it
> says to use the Audi power bleeder pumped up to 32 psi and open the slave
> nipple and let 100cc of fluid out.  Almost all of my past vehicles have
> recommended the pressure bleeder but none of them has required it.  I have
> always been able to manual method it - until now.
> Thanx!
>  Richard
> On Tue, Jun 3, 2008 at 10:22 PM, Nicholas Stock <nickstock at gmail.com> 
> wrote:
>> Richard, on my 2000 A4 1.8T, there was a nipple on the top of the gearbox
>> housing which I believe was the master cylinder bleed (I could be 
>> wrong..but
>> fluid definitely came out under pressure, it's been a while!). I used a
>> motive power bleeder when doing my brakes and bled the clutch at the same
>> time (probably not that necessary..but I thought, what the hell...). I
>> purchased the motive power bleeder from ECS tuning, but I'm sure you can
>> find it elsewhere...hope this helps!
>> Does the Bentley not indicate where the clutch bleed is?
>> Regards,
>> Nick
>> On Tue, Jun 3, 2008 at 7:11 PM, Richard Hurt <rnhurt at gmail.com> wrote:
>>> OK, I just replaced both the master & slave clutch cylinders on my '98 Q
>>> 30v
>>> and boy was it fun!  The master was by far the hardest and took a couple
>>> of
>>> hours.  The secret to my installation was to use the firewall seal/steel
>>> washer off of the old master.  The new seal was too big for me to get in
>>> properly.  I'm talking about the seal that goes around the main line
>>> against
>>> the firewall - it only keeps out the rain and drafts and should be fine 
>>> to
>>> use the old one.  The slave was really not too bad at all.  I took off 
>>> the
>>> drivers side front tire and had my Dad guide me in.
>>> Now for the big question: how the hell do you bleed the clutch 
>>> system!?!?!
>>> We tried the old 2-man manual method but didn't get anywhere.  We also
>>> tried
>>> the tube in a mason jar method with about the same results.  I looked a
>>> little bit on-line and it seems like our cars (+ SAAB & Volvo) require a
>>> pressure bleeder.  You can't use a vacuum bleeder because it just sucks
>>> the
>>> juice out of the master cylinder and I know that the manual method 
>>> doesn't
>>> work.  All we got were some light puffs of air coming out of the system
>>> but
>>> the pedal still drops right to the floor with no resistance at all.
>>> Can anybody point me in the right direction here?  Any recommendations 
>>> on
>>> a
>>> pressure bleeder?  How about a DIY model?  The manual says it needs a
>>> pressure of 32 psi but that seems quite high to me.
>>> Thanx!
>>>  Richard
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