W222 Fan constantly running
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Mercedes S350 w222
W222 Fan constantly running
Hi all, I hope someone can help!
I have a S350 2014 W222 which has recently been causing me some headache. Sometime yesterday the AC went from ice cold to somewhat warm, shortly after this I noticed the fan was constantly running on high. I started the car this morning and the fan come on a couple seconds later again running on high and only goes off once the car is turned off. I’ve also noticed the outside temperature reading is wrong, it’s showing -33c (I live in London UK it’s 25c).
Fault code:
B10VA 15
The refrigerant pressure sensor has a malfunction, there is a short circuit to positive or an open circuit.
I spoke to a local garage who said it will be a lot of work to get to the RPS and they’re not sure it will actually solve the issue. I’m hoping to speak to a Mercedes specialist on Monday and get this figured out.
Perhaps anyone here has had a similar issue and can shed some light on possible fixes?
I have a S350 2014 W222 which has recently been causing me some headache. Sometime yesterday the AC went from ice cold to somewhat warm, shortly after this I noticed the fan was constantly running on high. I started the car this morning and the fan come on a couple seconds later again running on high and only goes off once the car is turned off. I’ve also noticed the outside temperature reading is wrong, it’s showing -33c (I live in London UK it’s 25c).
Fault code:
B10VA 15
The refrigerant pressure sensor has a malfunction, there is a short circuit to positive or an open circuit.
I spoke to a local garage who said it will be a lot of work to get to the RPS and they’re not sure it will actually solve the issue. I’m hoping to speak to a Mercedes specialist on Monday and get this figured out.
Perhaps anyone here has had a similar issue and can shed some light on possible fixes?
Hi all, I hope someone can help!
I have a S350 2014 W222 which has recently been causing me some headache. Sometime yesterday the AC went from ice cold to somewhat warm, shortly after this I noticed the fan was constantly running on high. I started the car this morning and the fan come on a couple seconds later again running on high and only goes off once the car is turned off. I’ve also noticed the outside temperature reading is wrong, it’s showing -33c (I live in London UK it’s 25c).
Fault code:
B10VA 15
The refrigerant pressure sensor has a malfunction, there is a short circuit to positive or an open circuit.
I spoke to a local garage who said it will be a lot of work to get to the RPS and they’re not sure it will actually solve the issue. I’m hoping to speak to a Mercedes specialist on Monday and get this figured out.
Perhaps anyone here has had a similar issue and can shed some light on possible fixes?
I have a S350 2014 W222 which has recently been causing me some headache. Sometime yesterday the AC went from ice cold to somewhat warm, shortly after this I noticed the fan was constantly running on high. I started the car this morning and the fan come on a couple seconds later again running on high and only goes off once the car is turned off. I’ve also noticed the outside temperature reading is wrong, it’s showing -33c (I live in London UK it’s 25c).
Fault code:
B10VA 15
The refrigerant pressure sensor has a malfunction, there is a short circuit to positive or an open circuit.
I spoke to a local garage who said it will be a lot of work to get to the RPS and they’re not sure it will actually solve the issue. I’m hoping to speak to a Mercedes specialist on Monday and get this figured out.
Perhaps anyone here has had a similar issue and can shed some light on possible fixes?
it's a two in one sensor apparently located at the base of the condenser radiator
of course the circuit will be open during replacement so a full refill required
access seems not crazy but sometimes you get some access surprises with modern Benz, I would attempt from under the car
first thing to check is the connector for corrosion, due to it's function, location and Uk's horrible climate for cars, you might find some
Last edited by BenzNinja; Jun 28, 2023 at 02:46 AM.
