"Maximum temp" warning

[jon67]

Hi all, 1.9 multijet 2008.
Today when I went to start the car, after it had been run and reached running temp already then cooled down, on turning the key "maximum temp" warning appeared and temp gauge went to maximum and car wouldn't start. This happens so fast if you blink you'll miss it. it's done this a couple of times before but there's no regularity. It always starts fine straight away after. Could be intermittent fault on thermostat sensor, I can't find any info on this anywhere.
Does anybody have any idea what this could be?
Many thanks

 

[s130]

If I recall correctly I've had this on my Fiat Croma 2005 1.9 MultiJet. Was just a starting glitch.

I would ignore this unless it becomes a repeating event in which case I would be looking at battery condition/function and connections.

 

[varesecrazy]

jon67

Worth teading the random electrical thread in FAQs top of Grande section.

Weird how it doesnt start.. perhaps the high temp sensed triggers a failsafe?

I take it no useful error codes are being recorded??

What vehicle are you seeing this on?
Charlie

 

[jon67]

Doblo. No error codes

 

[jon67]

Interesting thread on electrical issues.
My fuse box cover is missing so first thing I'll look at getting one.

 

[DaveMcT]

Maybe there is an over temperature switch. Can you get an indication if MES is connected before you start the car or at least while the warning is up?

 

[s130]

jon67
Weird how it doesnt start.. perhaps the high temp sensed triggers a failsafe?
Charlie

This is what I experienced. The immediate dash warning and unable to start. Ignition off and retry and all was OK.

 

[jon67]

Same thing happened again today after car had been parked all day at work. Very damp and wet weather now so I should get that fuse box cover.
Is it ok to spray a bit of WD40 straight onto the fuses to displace any moisture?

 

[The Panda Nut]

I had a part from a CItroen a few years ago. It was a window regulator with one touch up and down. Our electricians at work just spayed everything with WD40 and then cleaned it carefully and dried it for 24 hours. It worked perfectly for many years! Go for it. Its what WD40 is all about.