temperature fluctuating and fan comes on high very soon
Thread Starter
Newbie
Joined: Feb 2022
Posts: 9
Likes: 2
mercedes c230 kompressor(1.8 192ps) sportscoupe
temperature fluctuating and fan comes on high very soon
my w203 c230 the temperature fluctuating all the time as you between 80-96 C°.i think this thing is not normal because i tested that after 90C° the radiator fan is on and close to 96C° runs on high like a turbine and after 30 seconds the temperature goes to 80° and the radiator fan is off again...this thing is happening all the time.to mention that the AC is off and the temperature outside is winter about 5° C.please enlight why the fan comes on high so soon enough especially in this winter days.to mention i noticed that the upper hoses of the radiator is getting hot after 95C° and then the temperature in getting down in the gauge and is closing the fan.and please if anyone knows in which temperature the fan comes on?
Out Of Control!!
Joined: Sep 2018
Posts: 14,671
Likes: 4,574
From: unbegrenzt
2017 GLE350 4MATIC
Welcome! Try posting in the W203 section and the question will get more views by helpful owners.
Please post a photo of the C-Class!
Possibilities:
- thermostat (most likely)
- coolant level
- water pump
- pulley or belt
- fan
- radiator
Please post a photo of the C-Class!
Possibilities:
- thermostat (most likely)
- coolant level
- water pump
- pulley or belt
- fan
- radiator
Thread Starter
Newbie
Joined: Feb 2022
Posts: 9
Likes: 2
mercedes c230 kompressor(1.8 192ps) sportscoupe
sorry i posted also in the w203 section after this post,i found the section w203 later...and the photo of my car please enlight me where to upload it?in my photo profile or somewhere else?
MBWorld Fanatic!
Joined: Dec 2003
Posts: 3,275
Likes: 236
From: BC, Canada
2003 C230K Coupe Orion Blue
Check your coolant level. If that doesn't fix it, check the coolant pump next, though it does sound like the pump is working.
Sounds like the radiator is working fine.
The AC system is separate and unrelated. It has its own condenser.
Are you only using OEM or quality aftermarket parts? There are plenty of shady aftermarket parts out there that are total garbage.
Sounds like the radiator is working fine.
The AC system is separate and unrelated. It has its own condenser.
Are you only using OEM or quality aftermarket parts? There are plenty of shady aftermarket parts out there that are total garbage.
Last edited by slammer111; Feb 17, 2022 at 05:23 AM.
