Applecare+ Coverage After Thermal Pad Mod

Yes, it would void your AppleCare+ coverage.

From the AppleCare+ Terms & Conditions:

Apple will not provide Hardware Services or ADH Services in the following circumstances:

(g) To repair any damage to Covered Equipment (regardless of the cause) if the Covered Equipment has been opened, serviced, modified, or altered by anyone other than Apple or an authorized representative of Apple

Besides the fact that this solution likely doesn’t really perform as described, yes, if you open the machine and modify it, you will almost certainly void the warranty and AppleCare+.

kroozemissile wrote:

Would the Applecare+ plan still be voided if it is purchased after the mod was made?

Yes. You can't get around this. Opening the MBAir, at any time, under any circumstances, voids AppleCare coverage. The fact that it had been opened remains detectable.

if you have a heat problem with your MBAir, please describe what's going on.

Yes. It would be voided.

Of course