LI-S4

Posted a while back about a <a href="https://forums.audiworld.com/s4/msgs/2311160.phtml">mysterious consumption of coolant</a> and a few people chimed in about having experienced similar issues...

Got a call from Blackstone today (just the fact that they called instead of just sending the analysis back, was of concern. It was like getting a call from your doctor...

Anyway...the general condition of the oil is good with the exception of an extremely high aluminum content. Expected is 3ppm...my oil shows 41ppm.

Obviously the coolant is entering the oil; the resulting contamination and break down is causeing excessive wear on the internal aluminum parts... Heads? Pistons? Bearings?? what else is Aluminum?

If the bearings are aluminum I have big worries...if the Pistons and Heads are aluminum, I have worries but marginally less. Either way the motor is going to have to come out for some exploratory work...

I'll post the Blackstone Analysis when I get home... Thoughts???

S4KTS

Blown headgasket.

Captain Matt, I be

i dont believe the bearings are aluminum, theyre pretty damned heavy

Captain Matt, I be

or warped head.

LI-S4

That's good news...

O.W. Kenobi

now so that you potentially have enough time to fix it.

Captain Matt, I be

main sources of wear i can think of are piston skirts and cam bearings

dscottjr

2nd!

S4AVT

Why am I getting scared..

Captain Matt, I be

relax, you're fine