Dodge Journey 2.0 CRD – Cooling water display top area, cooler cold

Good evening, I have had a Dodge Journey 2.0 CRD for almost two years. Last year I renewed the thermostat, the timing belt & the water pump in the car. Now I drove the car for a long time again and for 2 – 3 weeks the car suddenly gets terribly hot, in any case this shows the cooling water indicator & the car started to stink. I put the car in a garage, which looked at the car for 6 days and could not detect any mistake, Besides the statement “It might be the cylinder head gasket”. This quickly costs 322 euros. Now I put the car in a small workshop in the country. After a test drive the mechanic ran right and could first find out that the brake blocks at the front were completely “glued” to the brake disc, which glowed. The blocks were changed and it no longer stinks. In addition, we changed the thermostat once new & the compensation tank For safety, it still tried to vent, making it seem that there was no air in the system anyway. Today there was a new test drive and the problem has unfortunately still not solved. If the car is running idle, it gets a temperature of about 50 degrees lt. Display. If you then normally start with the car, it comes to its operating temperature around 90 degrees, as it should be. The heater then also blows normal warm air. The temperature in the interior is then also much warmer. We drove the car immediately to the right. As soon as the car comes into idle, the indicator falls down again to about 50 degrees. Engine cover opened and see, the cooler is cold. Now we honestly despair a little, because every “unnecessary” defrosts. have you experienced an idea or perhaps a case like this? Would be nice if someone could help me / us further. My car is really sacred to me and of course I want the reperatures to be made – but I’m not angry if I can save money for unnecessary exchanges. 😉 MFG, Jackie