2012' Jeep Liberty

Jeep Liberty 3.7 2012 Latitude version.
The car has been in my hands for a year. Current mileage 141,025 miles.
The car's radiators have been replaced, a new battery has been installed, the power steering system has been regenerated, and the oil and filter have been changed. Air conditioning recharged and ozonated + air conditioning condenser replaced, cabin filter replaced. Drives operational. The rear bumper has abrasions. After the service, the gearbox began to overheat, until it overheated it changed gears smoothly, and the driver's seat was also damaged. The car has just had a technical inspection. If you have any questions, please contact me.