16 replies to this topic

[theoldmini]

hi
the cooling fan on my mpi does not seem to switch off when it comes on. when the car is cold all is well but once the fan has switched on it will not switch off. when you switch the car off the fan runs for a cople of seconds and then switches off. ideas please. thanks

Edited by theoldmini, 17 May 2009 - 05:59 AM.

[L400RAS]

I would also like to knwo the answer to this, as i have a similar problem!

[taffy1967]

The answer to your question is here: -

http://matsone.csuea...ges/x8479bu.pdf

[Pauly]

If the fan only comes on when its up to temp then its fine, its when it comes on from cold, after switching the engine off they do carry on for a few minutes (so does nearly all electric cooling fans in cars).

Paul.

[taffy1967]

But surely the electric cooling fan isn't required when you're belting along? Yes it is different if you're stuck in traffic on a hot day though.

Either way, that Rover Tech Bulletin I provided has been relevant to many an MPi Mini owner.

[theoldmini]

But surely the electric cooling fan isn't required when you're belting along? Yes it is different if you're stuck in traffic on a hot day though.

Either way, that Rover Tech Bulletin I provided has been relevant to many an MPi Mini owner.

cheers thanks for that Taffy
will try that tomorrow

[chrisking2021]

you could try reseting your ecu its done by having the ignition in position 2 and pressing the accelerator pedal down to the floor and up again 10 times then turn the ignition off and on again

chris

[theoldmini]

But surely the electric cooling fan isn't required when you're belting along? Yes it is different if you're stuck in traffic on a hot day though.

Either way, that Rover Tech Bulletin I provided has been relevant to many an MPi Mini owner.

have solved the problem now
i replaced the sendor in the thermostat housing and hey presto job done

thanks for all advice

keep mini-ing

[Minitrio]

you could try reseting your ecu its done by having the ignition in position 2 and pressing the accelerator pedal down to the floor and up again 10 times then turn the ignition off and on again

chris

Isn't that a myth, Chris?

Check the temperature sender in the Thermostat housing sandwich plate. I had similar problem with the fan always running, when engine fired up. Ordered a new one and now it runs on and off as required. Unfortunately the temp gauge never gets above normal! Think a new gauge is in order

[taffy1967]

Or new temp sender?

[theoldmini]

Or new temp sender?

thought i had fixed it but no
fitted a new sendor in the thermostat plate
the fan takes much longer to come on now but once on will not turn off until i switch car off

any further ideas please

been thinking again could the relay be sticking if so which relay is it please

Edited by theoldmini, 17 May 2009 - 05:59 AM.

[taffy1967]

Have you replaced this?: -

http://www.minispare.....20FAN MODIF...

And this: -

http://www.minispare.....TER TRANSDU...

[greg.harvey]

Hi,

I'm getting this on a newly purchased 1999 Mini, 1275 engine. I'm sure it's developed over the last few days, as I didn't really notice the fan being on when I just picked it up, but now it seems to be on all the time! Strangely, engine temperature seems absolutely spot on. It's not running too cold, sits nicely in the middle most of the time, so I'm not sure if it just gets hot, but it seems odd the fan is *always* running. Suggestions above would indicate this is probably not right.

Anyone got that PDF linked to above? Link seems to be dead now...


Cheers,


Greg

[greg.harvey]

The easiest thing to try first is to spray some WD40 on the sensor connection at the thermostat. The same problem occurred on my 1997 mini and I was shown this trick by a mini specialist. It cured the problem and has been trouble free for nearly three years.
I do not think the pdf is relevant. The tech bulletin was to do with an early (1996) problem which would not apply to your 1999 mini.

Ahh, ok ... and if that fails, maybe start thinking about replacing relevant sensors, I guess? Must buy Haynes manual ASAP!