Coolant fan running whilst engine is on

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Cmckay96
Posts: 2
Joined: Thu Mar 22, 2018 2:40 pm
Currently Drives:: 1.5 diesel hatchback

Coolant fan running whilst engine is on

Postby Cmckay96 » Thu Mar 22, 2018 2:50 pm

Hi. I have a problem with my 1.5 diesel hatchback. The coolant fan is constantly on until the engine is turned off. Plenty of coolant, oil, etc. I've replaced the temperature sensor and it's still on. :banghead Any ideas?

Cheers

grandadbobby
Advanced Driver
Posts: 499
Joined: Thu Feb 16, 2017 9:05 pm
Currently Drives:: megan dynamique estate 1.9dci

Re: Coolant fan running whilst engine is on

Postby grandadbobby » Thu Mar 22, 2018 8:19 pm

Hi,
it sounds like the relay is stuck on.
I believe it's right at the bottom under the engine fuses and has a number something like 234 on it, but you could maybe pull each relay one at a time to see if the fan stops. You would need jump leads as the battery and tray have to come out and while there check for burnt wires and bad connections, it's not uncommon.
Let us know how you go with it.
Good luck
Bob.

noelo
Passed Theory
Posts: 48
Joined: Sun Jan 11, 2009 12:07 am
Currently Drives:: megane sports tourer

Re: Coolant fan running whilst engine is on

Postby noelo » Fri Mar 23, 2018 8:47 pm

Is your air condition switched on?
Fan will run continuously if Air conditioning
Is on

Cmckay96
Posts: 2
Joined: Thu Mar 22, 2018 2:40 pm
Currently Drives:: 1.5 diesel hatchback

Re: Coolant fan running whilst engine is on

Postby Cmckay96 » Mon Apr 02, 2018 1:57 pm

Thanks for the replies! Problem doesn't change of the AC is on or off. Took the battery out and the tray out and couldn't see the relays been looking online and in the manual and it shows me that it may be under the upc/engine accessories cover. Problem is I have no idea how to remove it? Any suggestions? Can't find anything online!

Cheers

scooper1000
Pass Plus
Posts: 230
Joined: Tue Mar 07, 2017 12:17 am
Currently Drives:: 2006 Renault megane 1.5 DCi Maxim

Re: Coolant fan running whilst engine is on

Postby scooper1000 » Tue Apr 03, 2018 9:43 pm

Hi just go to YOUTUBE and type HOW TO REMOVE FUSEBOX ON RENAULT MEGANE and there is quite a few to show you exactly how to get to fuses and relays


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