Why is it so hard for the temperature to drop after starting the air conditioner today?

2015 Subaru Outback with 50,000 km, the brake feels very hard when starting the car, but it's normal after starting. What could be the reason?

When driving, if the electronic fan does not start at high speed after turning on the air conditioning and the water temperature is high, how can this be resolved?

When the self-drying function of the unit's air conditioner is activated, will it start after locking the car regardless of whether you turn off the air conditioner before turning off the engine or just turn off the engine and leave the car directly?

Why does it sometimes feel like the brake and accelerator are hard when I start the car, and other times they're soft? It feels uncomfortable to drive when they're hard.

Geely air conditioner only blows on the front windshield, settings don't work, and it fixes itself after a few days. Does anyone else have the same issue?

Today, after starting the car, the engine vibrates quite severely, but after a while, it gets better. Does anyone know what the reason might be?

My 207's automatic air conditioning is having issues. The air only blows towards the windshield and can't be switched to other directions. The display on the panel works, but it doesn't actually change. The AC compressor starts, but it keeps blowing hot air. The temperature adjustment panel shows the settings, but the temperature doesn't change.

Why does it show high coolant temperature at startup? Unable to start.

New cars have dropped in price so much, why are used ones still so expensive?

Sometimes when I wait for the RPM to drop after starting the car, the engine noise is really loud. The sound gets louder or softer depending on how hard I press the accelerator, and the throttle doesn't feel as powerful as it usually does, requiring me to press it deeper. However, most of the time, this doesn't happen. After the RPM drops, the noise is normal.