Help please: 306 cooling fans failed

Help please: 306 cooling fans failed

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gruffgriff

Original Poster:

1,603 posts

244 months

Thursday 21st June 2007
quotequote all
Morning all.

One cooling fan on my trusty (100k & 7 years) `99 1.8GLX 306 stopped working a couple of years ago but it never stuggled with the remaining one so I left it. Now the second has stopped working, with the obvious result that it gets very hot, very quickly when stationary. Temp returns to normal when under way again and there are no leaks in the system, the waterpump was changed last year too.

Given the 2 yr gap between each fan stopping, am I right in thinking it`s probably the individual fans that have failed or do they have independant relay/switches that could also be the problem? All advice welcome please. Also, is GSF a recommended supplier of parts?

Thanks in advance.
Gary

gruffgriff

Original Poster:

1,603 posts

244 months

Thursday 21st June 2007
quotequote all
Thanks Rob, that`s useful info, maybe getting an auto electrician to test the components would be money well spent.

gruffgriff

Original Poster:

1,603 posts

244 months

Sunday 24th June 2007
quotequote all
Ta very much Megamaniac, sounds like the fault could be anywhere but I can start by testing the fans. It`s probably time to buy a Haynes manual...
Cheers.

gruffgriff

Original Poster:

1,603 posts

244 months

Sunday 1st July 2007
quotequote all
Update and thanks: Megamaniac, you were spot-on!
Pulling all 3 sensor connectors (I didn`t know which was the relevant one so just yanked the lot) off the thermostat housing didn`t have any effect on the fans. Having to dismiss the just-arrived Haynes manual`s "simply drain system, remove rad and fan assembly from above" procedure because they made no mention of the hard plumbed air-con matrix sandwiched between the two, there was lots of spannering on stuff that was in the way (front wheels, wheel arch splash guards, washer bottle, front bumper) to get access from the front instead. It was tight (proper mechanics would wince at my `muscle the lifted rad as far back as poss without breaking it to get mole grips and socket on the rear nuts` solution) but the two new GSF supplied fans are now humming, and while the bumper was off I got perfect access to fix the fog light and washer hose too.

Many thanks, job done.

Gary