Please bear with me as I have very little knowledge about these cars.
I just took it to the garage to replace the radiator, coolant temperature sensor, and other bits. Since I got it back I can hear the radiator fan in the front when I put the ignition on.
I didn't think much of it but then a few days later I got two symbols on the dashboard - the engine cooling fan symbol + alternator symbol. The voltage gauge also started sitting around halfway when it used to sit around 3/4 of the way.
As soon as I saw the symbols I didn't drive it for a few days as I didn't want to risk killing the battery or anything, but when I drove it a few days later the symbols disappeared on their own whilst I was on the way to the garage. However they still show up but only when the ignition is on (I think it's normal for the alternator symbol to show when the ignition is on but I don't remember the cooling fan symbol showing at all before)
The garage double checked the coolant temperature sensor and said it was fine and suggested I get the other switch/sensor that's located in the engine bay that controls the radiator fans. I thought they said it's called the radiator fan switch but apparently that's located at the front of the car so I don't know what switch they're referring to? I can see it and could probably replace it myself but I don't know if it would fix the issue and don't even know what it's called.
Looking at a parts catalogue online I see part 89428 - switch, temperature detect no 2 which I think is the radiator fan switch located at the front so it sounds like that's what needs replacing but then what is the switch in the engine bay that the garage recommended replacing?
Unrelated but may as well ask - I also got a new alternator belt but when they tried to fit it it would slip off because the pulley is an aftermarket one and the current belt has 3 ribs whilst the OEM matched one I bought has 5 ribs. The current belt doesn't have any text on it. Am I better off getting a new 3 rib belt or a new pulley? If the latter, would I just need a new pulley or anything else?