156 2.5 V6 coolant reservior cap pressure limit - Alfa Romeo Forum
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156 2.5 V6 coolant reservior cap pressure limit

I'm wondering the pressure limit of the coolant reservoir cap. In my V6 there's an aftermarket one (bought with reservoir) and 1.4bar is written on the cap.
According the e-learn the cap should open at 0.98bar.

In the advertisements of every aftermarket reservoir I see the same 1.4 bar cap. On the original caps the pressure value is not indicated (at least not outside).

I had/have problems with cooling system. A new radiator had to be repaired because it was leaking, one (probably original one) hose and now again one hose is leaking and it seems that the thermostat is leaking a little bit also.

Does anybody know the real and expected opening pressure value of these caps? Can 1.4bar a realistic opening value? In my opinion it's quiet high...
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1.4 is correct

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My view this caps differ each other by colour.
Blue is 1.4, light brown is 1.2.
I do not remember mine. Sorry.
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156 , cap , coolant , limit , pressure , reservior

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