Best option for a player: Get thee to a good car stereo shop.

If lifting the carpet doesn’t work, seek a mechanic.

‘Turbo howl?’ That’s nonsense, too.

A jump start may well be the solution.

A used, replacement differential is the most economical solution.

The mechanic should have diagnosed this classic case.

Drain; clean; do not repeat.

A manufacturing defect appears to be the problem.

Driving around with a serious coolant leak is not a good idea.

Looks like time to consult the dealer.