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85 N9T Coolant Temp Gauge

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Hello all!

First of all I just want to say hello to everybody! I recently got a 1985 puegeot 505 N9T 5 speed.

I am fixing it up and I had a question regarding the coolant temp gauge. After I bled the system (according to the post by webmaster back in 2012) I let it idle for a bit. But, as shown in the attachment when the coolant temp gauge reaches that point the cooling system warning pops up to indicate overheating/low level. My level is fine. When I drove it for 20 miles beforehand I did not get any warning lights and the gauge was kinda sitting at around that position.

I suspect I either didnt bleed the system properly or the gauge never worked properly.


Here is the link to the guide I used:


Any help is greatly appreciated!


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Drove the car around and it performs fine. When I drove I did get the coolant warning but it disappeared. The needle also started to go up towards the middle but did not over heat. I did give it the beans but then the led started started blinking. I think the code is 5- something. I will have to look it up. I'm no expert so I may be talking out of my ass. 

Edited by TommyM

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