90Q radiator problems

[Motor Sport Visions Photography]

In a message dated 9/21/2001 Peter Kirby writes:

<< I am on my third main radiator in 22 months.  The first one died of
old age
but the last two (both aftermarket brass rads) have broken off the lower
mount from the bottom tank -- leaving either a hairline crack or other
type
of hole (it must be very small since it leaks but only a small amount). 
I
have tried using JB Weld on the mount but this hasn't worked to stop the
leak.

My plan now is to pull the radiator out andpatch up the lower tank with
solder or a piece of brass soldered over the area.  Any other
suggestions
short of buying an OEM rad? >>

Yikes! So much for those reliable all metal radiators hmm?

Seriously, the reason given that there is dislike for OE radiators is
the chance of sudden failure. While I recognize that is a big potential
risk of failure, it is also my experience that the plastic OE raditors
do last some 10 or so years. The only Audi radiator I had recurring
trouble with was an all metal one in a 4kq I once had. I did have to
replace the one in my 5ktq, but only because I broke off the brittle
little nipple for the overflow line doing a hose change because it was
~10 years old and about to go anyway.

The real problem is in the way the overheat/low coolant warning and
temperature gauges work. Loose coolant you get no readings or warning
until it is already too late. That sucks and cost a friend a head on his
5ktq once when his heater valve let go.

I suggest an O.E. radiator. They do last and you'll likely not have the
car in ten years from now when it fails the next time anyway. I do
realize this is contrary to popular advice though.

Mike Veglia
Motor Sport Visions Photography
http://www.motorsportvisions.com