Car went caput..... - 986 Forum - The Community for Porsche Boxster & Cayman Owners

blinkwatt · 02-28-2011, 10:44 AM

AOS went bad...in like a moment. It wasn't progressive,no smoke at start up.

Said looks like it crumbled inside....

$700 for diagnosis,R & R of the AOS and they are replacing the original oil filler tube...can't be happier.

RandallNeighbour · 02-28-2011, 11:20 AM

What great news!

Even if it's expensive, it's good to know what's going on, eh?

At least its not a blown motor.

This is also really solid knowledge for the future for me should my car produce the same symptoms.

I've been thinking about replacing my AOS as a preventative measure since I've replaced every other freaking piece on the car since I've owned it except for this one.

jcb986 · 02-28-2011, 01:20 PM

Quote:

Originally Posted by blinkwatt

AOS went bad...in like a moment. It wasn't progressive,no smoke at start up.

Said looks like it crumbled inside....

$700 for diagnosis,R & R of the AOS and they are replacing the original oil filler tube...can't be happier.

OUUCH...$700. An OEM AOS kit is only about $100. An hour to install, say $150... :ah:

Jake Raby · 02-28-2011, 02:50 PM

When the AOS goes you can experience secondary failure.. We've seen too many have cylinder failures shortly thereafter.. The cylinders go hydraulic with oil in some instances which can make them D chunk.

Have the shop pull the spark plugs and ensure that the cylinders aren't filled with oil..

RandallNeighbour · 02-28-2011, 03:19 PM

Now I'm really serius about changing put my AOS as a maintenance item.

blinkwatt · 02-28-2011, 04:55 PM

Quote:

Originally Posted by jcb986

OUUCH...$700. An OEM AOS kit is only about $100. An hour to install, say $150... :ah:

Meh $100 to diagnosis(I'm not mechanically inclined),$150 for parts....the labor for AOS isn't bad but that oil filler is a B if you don't have the right tools.

silverboxter · 03-06-2011, 02:25 PM

similar experience with my AOS failure. just started smoking like crazy...no warning. oil got into the cylinders before i could pull over and stopped the engine. ruined the O2 sensors and cost me $1,200 to get my 2001 base box running again. Six months later my engine gave way and left a trail of oil on the freeway. not sure if this was related to the AOS failure but i would suggest that you take care of your AOS before it leaves you stranded. just my 2 cents.