Ventilation is blocked when driving at speed.

Problem with your Megane? Can't find an answer? Workshop manuals and technical notes are in here.

Moderators: q292u, Ray, AndyAdmin, Stranger

JonnyBlaze
Posts: 3
Joined: Sat Aug 08, 2020 9:52 am
Currently Drives:: 2007 Megane CC 2l DCI

Ventilation is blocked when driving at speed.

Postby JonnyBlaze » Sat Aug 08, 2020 10:11 am

Please help ,
My air con and blower fan work perfectly (after spending over £1000 to fix)
But
When driving at over 50 mph the air vents stop letting air into the cabin.
I can hear the fan working and a tiny trickle of air con but it seems blocked.
Everything works perfectly around town, vents, blower speeds, heater and air con normal.

scooper1000
Pass Plus
Posts: 214
Joined: Tue Mar 07, 2017 12:17 am
Currently Drives:: 2006 Renault megane 1.5 DCi Maxim

Re: Ventilation is blocked when driving at speed.

Postby scooper1000 » Sat Aug 08, 2020 10:49 am

Have you replaced the cabin filter behind the centre console

JonnyBlaze
Posts: 3
Joined: Sat Aug 08, 2020 9:52 am
Currently Drives:: 2007 Megane CC 2l DCI

Re: Ventilation is blocked when driving at speed.

Postby JonnyBlaze » Sat Aug 08, 2020 12:26 pm

I am about to remove it. Not sure how that would prevent air flow only at speed but it’s worth a go.

scooper1000
Pass Plus
Posts: 214
Joined: Tue Mar 07, 2017 12:17 am
Currently Drives:: 2006 Renault megane 1.5 DCi Maxim

Re: Ventilation is blocked when driving at speed.

Postby scooper1000 » Sat Aug 08, 2020 2:24 pm

I think at low speeds there is time for the air to get past the filter but as speeds increase the filter will not let enough air through so it appears blocked....Its a very simple job to replace . you could remove and punch a hole in it just to see if it improves things...you cannot leave it out completely as there is a seal on the filter

JonnyBlaze
Posts: 3
Joined: Sat Aug 08, 2020 9:52 am
Currently Drives:: 2007 Megane CC 2l DCI

Re: Ventilation is blocked when driving at speed.

Postby JonnyBlaze » Sun Aug 09, 2020 6:44 am

I removed it. Cleaned it and it seems to be fine now. I will order a new one. Thanks!


Return to “Problems / Questions”

Who is online

Users browsing this forum: No registered users and 38 guests