# Renault Scenic Megane 1997 heater blowing cold air only

**URL:** <https://community.cartalk.com/t/renault-scenic-megane-1997-heater-blowing-cold-air-only/41658>\
**Category:** Maintenance/Repairs\
**Tags:** renault\
**Created:** [January 2, 2010, 10:32am UTC](https://community.cartalk.com/t/renault-scenic-megane-1997-heater-blowing-cold-air-only/41658 "2010-01-02T10:32:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sheridanmh](https://avatars.discourse-cdn.com/v4/letter/s/6f9a4e/32.png) [@sheridanmh](https://community.cartalk.com/u/sheridanmh)\
**Post date:** [January 2, 2010, 10:32am UTC](https://community.cartalk.com/t/renault-scenic-megane-1997-heater-blowing-cold-air-only/41658/1 "2010-01-02T10:32:43Z")

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The heater is not working in the car it only blows cold air even when the engine is hot. Could this be something simple or is it a garage repair job?

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**Author:** ![Joseph\_E\_Meehan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/joseph_e_meehan/32/21_2.png) [@Joseph\_E\_Meehan](https://community.cartalk.com/u/Joseph_E_Meehan)\
**Post date:** [January 2, 2010, 12:47pm UTC](https://community.cartalk.com/t/renault-scenic-megane-1997-heater-blowing-cold-air-only/41658/2 "2010-01-02T12:47:28Z")

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I don’t know the car, but likely it is the blend door. On some cars it is vacuum driven so any vacuum problem can cause the problem. Find a vacuum hose map and start checking for cracked or disconnected hoses. It may also be electric controlled or mechanically controlled. Other than that you could have a bad heater hose or even a bad thermostat.