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Model specific boards => Golf mk3 => Topic started by: abelf on 06 January 2011, 15:45

Title: MK3 8V GTI fan problem
Post by: abelf on 06 January 2011, 15:45

Hi,

Recently got myself a '93 MK3 8V GTI and its developed cooling fan problems.

Basically the radiator fan won't switch on when the engine is hot enough (86deg and higher).

I have checked that the fan motors works, the fan relay in the little black box above the gear box works, the rad thermo switch is brand new and the fuse is good. Please help me.

I don't know if its linked but the mpg has recently dropped too, on avergae by 6mpg. (e.g. motorway cruising was 40mpg now at 34mpg)

Cheers

Title: Re: MK3 8V GTI fan problem
Post by: javalin on 06 January 2011, 16:04

I thought that the rad fan was set to 110c or something similar - i.e. higher than the t-stat opening temp (~90c)

Possibly you don't have a problem.

J

Title: Re: MK3 8V GTI fan problem
Post by: damien010685 on 06 January 2011, 16:08

Mine usally comes on just over 100 But i had the same problem turns out was just the fan switch needed replaced but you said yours is brand new so not sure dude!

Title: Re: MK3 8V GTI fan problem
Post by: Wayne on 06 January 2011, 16:24

Could be a temp sender problem

Title: Re: MK3 8V GTI fan problem
Post by: abelf on 06 January 2011, 21:57

i don't know whats going on with it. The newly fitted themo switch is 2 stage and is meant to operate at 84 then speed up at 99deg.

Thanks guys