UliWheels

V50 AC and Speedometer Error

I'm having trouble with my 2004 Volvo V50 gasoline. The error memory logged a fault, and there's an error message on the speedometer. The AC won't engage. My mechanic thinks it's a bad temperature sensor in the heat exchanger. Anyone seen this before? Any easy fixes?

A 2004 Volvo V50 is experiencing issues with the AC not engaging and an error message on the speedometer. The initial suspicion is a faulty temperature sensor in the heat exchanger. Suggestions include checking the refrigerant level and considering a potential problem with the AC control unit. Ultimately, a Volvo specialist diagnosed a faulty AC control unit and a bad temperature sensor as the causes.

Did this summary help you solve your problem?

4 comment(s)

Those symptoms suggest a cooling system problem. The AC control unit itself might be bad, stopping the system from starting. Did you check the refrigerant level? A sensor fault is possible, but check the easy stuff first. Has any work been done on the engine cooling system recently?

Thanks. The refrigerant level is fine. No recent work on the cooling system either. Could a sensor calibration fix this, or is a bigger sensor problem more likely with these symptoms?

With the speedometer error and AC issue, calibration probably won't fix it. The error memory likely has a code for the sensor or control unit. Take it to a shop with Volvo diagnostics for a proper diagnosis before replacing parts.

Thanks for the advice. I took it to a Volvo specialist. It was a faulty AC control unit, like you thought, and the temperature sensor was bad too. Total cost was 980€. Thanks for pointing me in the right direction!

rmh_community_comment_box_header

community_crosslink_scanner_headline

community_crosslink_scanner_intro

community_crosslink_scanner_title

community_crosslink_scanner_price

community_crosslink_rmh_headline

community_crosslink_rmh_intro

community_crosslink_rmh_title

community_crosslink_rmh_subtitle

community_crosslink_rmh_brand

VOLVO

community_crosslink_rmh_model

V50