[s-cars] Coolant leak from under the intake manifold

[Radek]

Thank you very much for your input guys.  Yes, the car is a 1996 UrS6 and 
coolant is seeping along the cylinder head, somewhere in the middle of the 
engine.  Well hidden from view.  Looks like we will have to remove the 
intake manifold, it should swing out with fuel lines attached, some vacuum 
lines will have to be separated.  I just can't imagine how even a longest 
Allen key can be inserted into the bolt in the Cyl. 2 area, will have to 
figure something our.  I will report on progress.
Cheers;

Radek.
1991 V8Q 5-sp
1988 90Q
1996 UrS6 (son's ride)


> ------------------------------
>
> Message: 3
> Date: Thu, 30 Jan 2014 20:37:48 -0500
> From: Tom Green <trgreen at comcast.net>
> To: "s-car-list at audifans.com list" <s-car-list at audifans.com>,
> radek at uniserve.com, dconner at gmail.com
> Subject: Re: [s-cars] Coolant leak from under the intake manifold
> Message-ID: <814259C8-5823-4586-9DCB-176FA2A4EE72 at comcast.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed; delsp=yes
>
> Radek,
> Once you have done a thorough investigation of the leak, if you are
> certain it is coming from  the coolant pipe as you have surmised,  the
> repair is indeed an involved process that will require removing the
> intake manifold.  The 6MM (IIRC) allen socket bolts require a long 8"
> wrench and some careful work to remove them.  Then, there are fuel
> lines and emission hoses, boost control vacuum lines, etc to deal
> with, so hope this is not the case.  There is helpful information on
> the Quattroworld UrS forum in the FAQ.
>
> I have made an assumption that this new car is a UrS4 or 6 because you
> did not say.  If not, disregard all this.
>
> If it is the turbo coolant return line ( the 10MM, 160MM long piece of
> rubber hose below the coolant pipe and well hidden under the intake
> manifold, this will be infinitely easier, despite the warnings of
> difficulty.  I will say that it is extremely difficult to change this
> hose on the side of the road when the engine has just emptied the
> coolant system through a break in this hose, because it won't cool off
> very quickly even in the current -2?F evening.  You will also have to
> use a temporary fix since you don' t have the hose, meaning you get to
> do it again soon-real soon.
> So, if this is it, get the proper hose and do the repair. I have
> assumed you caught the coolant loss before you overheated and warped
> the head, which occurs surprisingly fast in these things.
>
> There are several electrical connectors and emission hoses under the
> intake manifold that are in the way, so you need to be very careful.
> Some monkey boy handiwork under there can result in a very large
> repair bill for these parts.
>
> Dave, and for Radek also if needed,
>
> This hose is sold in 1 meter lengths-still enough for 6 repairs.  The
> hose is available as Audi part # N 020 262 1 from genuineaudiparts.com
> (San Diego Audi online parts sales) for $17.48 plus shipping ($7.50
> base IIRC) which is a real bargain compared to more than double a few
> years ago.
>
> I can come up with one piece I bought 2 years ago from a lister for
> $10.00. A small priority mail box would add $6 so balance that against
> the whole part that probably can be shared and trim the outlay.  If
> you have additional parts to order, the shipping costs can be spread
> out over more parts.  If the math is difficult here, let me suggest
> something.  If there were 2 individuals needing hose (and there are
> likely more) each might want 2 sections so he had a spare to use 10
> years from now, or for an unseen problem, or to play good samaritan
> for another needy lister who is perhaps new and didn't realize the
> importance of having  this part handy.  That uses up $16+ of the hose,
> leaving only $8+ excess, or $4 each if you split costs and hose equally.
>
> Let me know if I can help.
>
> Tom '95 S6
>          '95.5 S6 avant
> Knoxville, TN
>
> On Wednesday January 29, 2014, at 3:53 PM,  Dave C
> <dconner at gmail.com>wrote:
>
>> Radek,
>>
>> Detailed info on this is here, scroll down to 4. Coolant Return
>> Line ...
>> http://forums.quattroworld.com/s4s6/msgs/200702.phtml
>>
>> It warns that this hose is a real mofo to replace due to difficult
>> access,
>> and echoes Wylie's warning re: the importance of getting the correct
>> hose
>> ... p/n N0202621
>>
>> This is the QW sticky "Things that will fail on your AAN and strand
>> you on
>> the side of the road".
>>
>> Replacement of this hose is on my "to do" list but I haven't bought
>> it yet.
>> If my interpretation of ETKA is correct, it's sold in 5 meter
>> lengths and I
>> need a 16 cm piece.  Does anyone have a left over section to sell?
>>
>> Dave C.
>
>
>
> ------------------------------
>
> Message: 4
> Date: Thu, 30 Jan 2014 22:36:37 -0800
> From: tedebearp at yahoo.com
> To: s-cars <s-car-list at audifans.com>
> Subject: Re: [s-cars] Coolant leak from under the intake manifold
> Message-ID: <9C976172-F108-401A-9EE7-3EF39D624008 at yahoo.com>
> Content-Type: text/plain; charset=utf-8
>
> This is the hose that ruptured on my car recently.  Initially, I wrapped 
> it with duct tape (which was difficult to do well due to I accessibility), 
> and that lasted for about 30 minutes, enough to get me out of downtown SF. 
> Then the coolant started gushing again and I decided to have the car towed 
> rather than risk blowing a head gasket or warping the head.
>
> I had replaced that hose 7 or 8 years ago when I was changing the timing 
> belt, but I may have used generic hose (don't recall).  At that time I 
> briefly considered replacing the whole section (hose and pipe) with AN 
> hose, but decided that replacing the rubber hose was easier and cheaper. 
> After it ruptured,  The shop charged me $26 for the hose and $250 labor.
>
> Regardless of whether you have to spend a few dollars more or less to get 
> that hose, it is certainly cheaper now than waiting until it ruptures and 
> results in a tow or warped head.
>
> Sent from my iPad
>
> ------------------------------
>
> Message: 5
> Date: Thu, 30 Jan 2014 23:53:06 -0700
> From: Mike Miller <mikemilr at blackfoot.net>
> To: s-car-list at audifans.com
> Subject: Re: [s-cars] Coolant leak from under the intake manifold
> Message-ID: <52EB4852.9070406 at blackfoot.net>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> This is one more reason to carry a roll of "rescue tape" and a couple
> hose clamps. I've used it on MAF->Turbo hoses and the Michelin Man hose.
>
> --mike
>