Temperature Gauge Fitment

As many people will be aware certain model Seicento's and possibly some Cinquecento's do not come with a temperature gauge of any description. Instead they are fitted with a temperature warning light, or as I like to call it, "Oh Crap" Light.

The temperature warning light will only come on at extreme temperatures, as I know from experience. At this time the coolant will be boiling and will start to blow steam out of the pressurised cap, not really ideal, as by this point you risk serious engine damage.

To remedy this situation I set about fitting a temperature gauge to my car, which has been running for over a month as I write this article and has been working fine and providing a talking piece and most importantly, an accurate temperature read out.

Smiler121 · 21-05-2007

Having just done this sucessfully on a Sei MPi :-) , you need the blue wire for ignition controlled +, black for negative. In case you need seperate illumination when dark, the Red & yellow is + & is on only with the lights.

Hopefully if you follow these colours with the battery out you'll avoid a £35 airbag warning reset (thanks Research Nuneaton - Research Coventry tried charging £60 + VAT) Be careful to do the wiring work with the battery out - I originally shorted connections while doing a crap job of testing the outputs with a multimeter!!! :-(

Smiler121 · 04-06-2007

Don't want to spam the guide, but for people's info it only cost me £15 in the end to get the reset done today by RESEARCH Nuneaton & I was wrong about Coventry London Road being a RESEARCH garage :-)

MintySport · 30-03-2008

the whole process of having no reading till the thermo opens can be bypassed by instead of placing the sensor in the bottom hose, you get a smaller sized adaptor and put it in the pipe which runs from the block to the heater matrix at the rear of the engine. that way the water runs past the sensor even when its warming up and still gives a very reliable reading as the sensor is nearer to the engine block!

benjo · 13-05-2008

In regards to the comment above, any idea anybody of what size adapter is needed to mount on this alternative pipe?
Looking to do this soon so info is handy

Smiler121 · 13-05-2008

Originally Posted by MintySport

the whole process of having no reading till the thermo opens can be bypassed by instead of placing the sensor in the bottom hose, you get a smaller sized adaptor and put it in the pipe which runs from the block to the heater matrix at the rear of the engine. that way the water runs past the sensor even when its warming up and still gives a very reliable reading as the sensor is nearer to the engine block!

I know that a constant reading has its benefits, but I actually quite like the idea that I don't get a reading while the stat is closed - I find it a handy reminder not to push the engine until the car is warm!!!

Also means I know if it is sticking.

benjo · 14-05-2008

Yes, I think you may be right!

I'll go for the one described in the guide!

Cheers

Just out of interest what sort of price do you reckon the whole thing would cost?

K3mp · 25-06-2008

cant find a coolant hose adaptor where could i get one from,could any1 get me a link?
cheers

larsson1971 · 03-07-2008

Ebay do them there are loads.

donna_john · 1 Week Ago

thank you for putting this post up, just done my gauge to day! alls working just as you said, a BIG THANKS AGAIN

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