Recently in workshop changed the water pump.Genuine Rover coolant used for refilling.
However since then and by the time i start car receive "check cooling liquid" and then notice goes away.
Checking liquid and is within correct levels.
Can it be sudden problem with the sensor or something,by the time they were drying system,stored in memory and now needs to be cleared??

Many thanks for your assistance

If the dilution rate is low it will set off sensor also. You might have too weal coolant.

The dilution or specific gravity has no bearing at all on the sensor. The sensor can be removed from the bottom of the expansion tank without any loss of coolant as it is a magnetic reed switch. If the reed switch tests ok you will need to invest in a new expansion tank, I believe from past experience the magnet on the float becomes weak and gives false alarms. If the reed switch is faulty you can buy a new sensor or just solder in a new 10p reed switch
https://www.ebay.co.uk/itm/10Pcs-3-20mm-Gl...SwA4BbB8ir 2007 TDV8 VSE
2003 TD6 gone.
2002 P38a gone
1999 P38a gone
1997 p38a gone
1993 VSE gone
1992 VSE gone
1966 Series 2a with V8 conversion gone

Thanks guys.Problem is that before change water pump all were ok.Problem appears when car refilled with new coolant liquid

Car is 2004 model.Would you please tell me what is the correct cooling liquid.Is it the texaco afc or the havoline xlc or can be used any of them

Many tks

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AKIS, most likely is that when the coolant was drained, floating element got stuck on the bottom of the expansion tank, it happened to me. I removed expansion tank out and wash it first with some gasoline and then kitchen degreaser and all is well again.

Nino,

ps. check this thread:
http://www.fullfatrr.com/forum/topic43284....k+cleaning


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Nino many thanks.I will try clean tank during weekend and to be lucky as well

Best rgrds

Nino many tks for your advice.Tank washed and floating element became once again floating.
All ok now

Best regards to all

Glad it worked for you to, tks for reporting back.

Nino,

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