Houdini coolant?

[Bill Janssen]

Tony Hoffman <auditony at gmail.com> wrote:

> Look at the coolant flange at the back of the head. Common leak point on
> both the 1.8T's and 2.0T's. Just did one a couple of days ago, major pain
> compared to the early 1.8's.
> 
> They typically leak just enough to leave a trail, but not enough to puddle
> on the ground before evaporation.

Took it over to my shop, my mechanic said the same thing: the coolant flange.

Then he looked over the engine, couldn't find any evidence of a leak.
No pink residue.  No milky oil.  Put pressure on it, can't get it to
leak.

Mystery.

Bill

> 
> Tony
> 
> On Mon, Jun 17, 2013 at 9:01 PM, Bill Janssen <bill at janssen.org> wrote:
> 
> > Got back from a 16-day trip, started my 2007 A4 quattro 2.0T, backed out
> > of the garage, got the flashing red coolant light on the dash.  Stopped
> > the car, looked at the tank -- no coolant.  Looked at the garage floor
> > -- no coolant or orange stains.  Added over a pint to bring it back up
> > to spec.  But what happened to it?  Supposedly sealed for life!
> >
> > Bill