jkeaton

The code is still stored even if the light goes out by itself. As stated, take it to an auto parts store and get the code. Then you will know what needs to be fixed.

Welcome!

Yes, see above.

From the owners manual: 18. Temperature Gauge The temperature gauge shows engine coolant temperature. Any reading within the normal range indicates that the engine cooling system is operating satisfactorily. The gauge pointer will likely indicate a higher temperature when driving in hot weather, up mountain grades, or when towing a trailer. It should not be allowed to exceed the upper limits of the normal operating range

You can buy code readers for less than $20 these days. Or, drop by an auto parts store and they can read it for you. Yes, it's a sensor causing it and you need to know the code to know what sensor it is.

Probably not.

hmmmmm

I'd be replacing those wires that got hot an melted. Related? Quite possibly. Fix the known problem.

You're kidding right? Transmission is not a "throw away item". As stated, try an actual transmission shop. Not sure if the transmission used with the diesel is the same as the one used for the gas engines. Do you have an owners manual?

Get some steelies and blizzaks for winter only. Anything above 16" should fit on a 2010.

Should be under warranty....

You can take it to a wheel shop to determine if it can be repaired, otherwise, as stated, if it holds air and you don't notice any new vibration, it's still good.

Welcome!

The transmission specialists could not answer these questions?

Could be a module in the transmission, or a bad connector/wiring or a serious internal issue. If you are a DIY type of person and have the means, drop the pan and do a fluid/filter change.

It's really hard to tell over the internet with certainty. Did you check the fluid level properly? What's the mileage? You can start by getting the transmission serviced. Doubt adding a "small amount" of fluid would accomplish anything. You really need to take it to a trans shop or dealer for a proper diagnosis.

There should be dimples in the bumper cover where screws go.

I think he's in Europe where they offer that engine. Still, 10k for a transmission?

Welcome! I would ever buy a car off the internet without seeing it in person and driving it. Thats me though.

Good luck with you next vehicle.

I had a Pinto wagon like that in college. Was my makeout machine....

The best tire height would be one that does not exceed factory width/height so you won't run into any fitment issues. There are several online tire size calculators you can use to enter your current size then play around with the 20" sizes to get the one that matches closest in width and diameter.

Welcome aboard!

What engine and how many miles?

Buy a wrecked one with a higher trim level and transfer the parts over.