cracking coolant overflow tank

[MSV96@aol.com]

Anyone know of a history of coolant overflow tanks cracking? On my 4kq there
appears to be a crack on the side with some slight slime to it. I use no
coolant-level is stable, and the motor temps are fine. Just back from a fast
trip down to LA and back...AC on, hotter than all get out, and averaging
90-100 for ~200 miles on I5 (on the way there)...no problems. It *looks*
though like it is starting to crack on the side. I have never seen this
before in any cars I have owned and am curious if this is something anyone on
the list has seen before. If so, has it resulted in catastrophic failure
(i.e. fast and total coolant loss)? Just curious at this point. Last time I
got curious towards the list I ended up buying a new heater valve ;-) (It was
cheap...so maybe I'm safe from the wrath of the Audi-Gods for now.) TIA for
advice on this one...

Mike Veglia
85 4ksq