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COLLECTED: Rover 75 (Dealer 'Launch' Spec)


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307 replies to this topic

#301 OFFLINE   EssDeeWon

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Posted Yesterday, 08:52 PM

Thanks so much mate. I will check the coolant tempt next time I'm driving the car. Sadly the fan doesn't work on low speed, so it's going to need attention.

Is it DIY or best to get someone who knows the cars to do it?

 

Get it tested properly first, ideally by a Rover friendly garage with a T4 or some decent diagnostic kit.   It is probably worn brushes in the fan but sometimes it can be a sender unit fault that tells the fan when to come on.

 

i.e. My 75 is odd because the demist test works 'But' the fan does not kick in when it should i.e. at 100oC. Your Rover does not always need the fan so this is fine for normal driving but if I do ever hit traffic and using the on board digital temp gauge I stick the fan on if it goes past 96oc, How do I do that??  Basically by triggering the air con on 'LO' and with 'econ' off triggers the fan to spin, hey presto, temp soon comes back down again in no time.  

 

Not ideal I know, but fan replacement with all the gubbins is a front bumper off job.

 

Don't worry, I have a list of jobs to get done on mine somewhere and it looks like a new loo roll, the fan replacement is on there somewhere near the top!!


2000 Rover 75 2.5 V6 Connoisseur Auto  (Primrose Yellow)

 


#302 OFFLINE   BenHar

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Posted Yesterday, 09:00 PM

EssDeeWon,

 

Why does the fan come on at low speed when demist is selected?

 

Thanks

Ben


CHRIS1980, on 08 Jan 2016 - 8:37 PM, said:snapback.png

Your clearly thick....end of.


#303 OFFLINE   Roverageous

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Posted Yesterday, 09:01 PM

EssDeeWon,

Why does the fan come on at low speed when demist is selected?

Thanks
Ben

Is used for the air con system :) if your fan doesn't come on you'll end up cooking your air-conditioning compressor.

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  • EssDeeWon and Hooli like this

#304 OFFLINE   EssDeeWon

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Posted Yesterday, 09:17 PM

Thanks Roverageous, and sorry Ben I missed your earlier question.

 

Roverageus explained it better than I would have done anyway  :-D


2000 Rover 75 2.5 V6 Connoisseur Auto  (Primrose Yellow)

 


#305 OFFLINE   BenHar

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Posted Yesterday, 09:28 PM

Aha. So you could just turn the AC on rather than specifically demist? Or is it all automatic and only comes on with demist when it's cold?

 

All modern cars are... too complicated.

 

Thanks for explaining.

 

Ben


CHRIS1980, on 08 Jan 2016 - 8:37 PM, said:snapback.png

Your clearly thick....end of.


#306 OFFLINE   Hooli

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Posted Yesterday, 09:55 PM

Get it tested properly first, ideally by a Rover friendly garage with a T4 or some decent diagnostic kit.   It is probably worn brushes in the fan but sometimes it can be a sender unit fault that tells the fan when to come on.

 

i.e. My 75 is odd because the demist test works 'But' the fan does not kick in when it should i.e. at 100oC. Your Rover does not always need the fan so this is fine for normal driving but if I do ever hit traffic and using the on board digital temp gauge I stick the fan on if it goes past 96oc, How do I do that??  Basically by triggering the air con on 'LO' and with 'econ' off triggers the fan to spin, hey presto, temp soon comes back down again in no time.  

 

Not ideal I know, but fan replacement with all the gubbins is a front bumper off job.

 

Don't worry, I have a list of jobs to get done on mine somewhere and it looks like a new loo roll, the fan replacement is on there somewhere near the top!!

 

Can't you just stick a multimeter in the fan plug & see if it gets 12v when the fan should come on? if it does it's the fan, if not it's something else - probably the sensor.



#307 OFFLINE   BorniteIdentity

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Posted Today, 01:38 PM

Rather worryingly it didn't kick in today at 101 degrees... Even with the LOW setting on the ATC and fans on full blast.

Looks like I'm getting the chequebook out.
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1999 Toyota Avensis SR.  196k

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#308 OFFLINE   Bobthebeard

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Posted Today, 02:42 PM

Can recommend this one from Revotec. Fitted one a couple of months ago to my KV6 as the low speed fan never kicked in.
Pricey, took half a day to DIY fit but works well. Good quality IMHO.

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Nervously prodding at rust since 1978

1991 Oldsmobile Cutlass Supreme 3.1 V6
2002 MG ZT 2.5 KV6. AKA Warrior
2002 Saab 9-5 2.3t Auto estate
2007 Honda Accord 2.4 Auto estate




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