Lele23
Overheating problem and hot air flow in the Renault Talisman
(Translated from Italian)
Summary of the thread
A 2018 Renault Talisman owner is experiencing an overheating issue and unwanted hot air flow from under the steering wheel, even with the climate control off. The problem seems to originate from a hot pipe under the dashboard, worsening at higher speeds. A suggested cause is a malfunctioning heater control valve that might be stuck open, allowing hot coolant to flow into the heater core. Inspecting the valve for damage or leaks and consulting a mechanic for further diagnosis is recommended.
Did this summary help you solve your problem?
3 comment(s)
Lele23 (community.author)
community_quotation:
community_author_wrote_on
Check if the heater control valve is functioning properly, as it might be stuck open, allowing hot coolant to flow into the heater core even when the climate control is off. This could cause the heat you're experiencing. Inspect the valve for any visible damage or leaks. If you're unsure, it might be best to have a mechanic take a look, especially since this involves the cooling system. Let me know how it goes or if you have any other questions!
Heating control valve? It's something that definitely needs to be seen by a competent mechanic. I tried to inspect below the pedal area towards the center, I didn't notice any leaks.. The air conditioner seems to work correctly, as soon as you turn it on, the Arctic arrives immediately
(community_translated_from_language)
CarlyMechanic
community_quotation:
community_author_wrote_on
Heating control valve? It's something that definitely needs to be seen by a competent mechanic. I tried to inspect below the pedal area towards the center, I didn't notice any leaks.. The air conditioner seems to work correctly, as soon as you turn it on, the Arctic arrives immediately
Since the air conditioner is working well, another possibility is that the blend door actuator might be malfunctioning, causing it to not fully close the path to the heater core. This can allow hot air to seep through. Check if you hear any unusual noises when adjusting the temperature settings, which could indicate an issue with the actuator. If you're not comfortable checking this, it's advisable to have a mechanic inspect it. Let me know if you need further assistance or if you have any questions!
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
RENAULT
community_crosslink_rmh_model
TALISMAN
CarlyMechanic
Check if the heater control valve is functioning properly, as it might be stuck open, allowing hot coolant to flow into the heater core even when the climate control is off. This could cause the heat you're experiencing. Inspect the valve for any visible damage or leaks. If you're unsure, it might be best to have a mechanic take a look, especially since this involves the cooling system. Let me know how it goes or if you have any other questions!