Technical high coolant warning

[crad20]

Hi all, Just bought a GP 2007 1.2 active and i'm getting High coolant temperature warning,normally at start up.
Cure - software update it says in known faults.
I guess this is a dealer job? am i right.
Thanks for any advice.

 

[Most Easterly Pandas]

You are indeed correct

 

[smokeyjoe03]

I get a similar warning but on the dynamic you have the larger display so I get: "Excess Radiator Fluid Temp. Stop and Turn off Engine immediately"

Only flickers up once when I start the car, temp needle goes all the way up, then all the way down and all is fine. Car doesn't suffer any problems at all.

Apparently caused by either low battery level, air temp sensor, coolant temp sensor or initial stages of a water pump failure.

 

[Scd]

Hi there , this problem is also due to incorrect ecu software , may just need a update or if this doesn't work a new engine ecu .

 

[Tonii]

I get "Excess Radiator Fluid Temp. Stop and Turn off Engine immediately" too hasn't happened in a while now.

How much do dealers charge for the software update?

 

[Scd]

Hi there , not sure to be honest but it can only be done at a dealer . I'd leave it for now if its not playing up

 

[Most Easterly Pandas]

How much do dealers charge for the software update?

Free I believe if you're having a service, if in for just the software update I suspect same cost as diagnostics plug in.

 

[crad20]

Just an update. I decided to fit a new battery as the old one was checking a little low on voltage 12.1v and in doing so the high coolant warning no longer appears. I was also getting the flashing odometer at times and it appears to have cured this problem too.

 

[Most Easterly Pandas]

Just an update. I decided to fit a new battery as the old one was checking a little low on voltage 12.1v and in doing so the high coolant warning no longer appears. I was also getting the flashing odometer at times and it appears to have cured this problem too.

Thanks for the feedback, should help people in future

 

[Metalgurrrl]

How much does this update cost from Fiat?

 

[thegoodlife]

I have recently experience the warning "excess radiator fluid temp" on my GP even when cold.

This is caused by a system drop in voltage, this drop in voltage is how the radiator temp sensor is run. The higher the raid temp the lower the voltage across the sensor therefore the above warning appears, even when the engine is cold.

The problem was the drip tray for the windscreen drips directly into the alternator. Subsequently the alternator failed then seized and broke.

I replaced the alternator then the battery as the charge was below 4volts so a cell had gone.

Thus has fixed the problem and I have had no more issues with this warning.