Coolant cap

[agroupuk]

Hi all,

Quick question.

I topped up the coolant in the car about 5 days ago. Been running fine - didnt drive it sunday but went to work this morning.
All ok - no issues with heat (i have a pfc and commander).

Went to the car to go home tonight and started her up. Sounded fine, 5 seconds later coolant light and alarm come on.

Big panic.

Went to tesco\'s in a mates car and bought 5 litres of premixed coolant and then got dropped off back in the car park at work.

Went to put the coolant in and BINGO! no coolant cap.
I am guessing that its blown or come off somehow because I cannot see how I could be driving it for 4 days without the alarm coming on.

Anyway - bottom line is - does anyone have the product code for Mazda to supply another cap? is it a standard cap or do I need something with specific psi rating (or whatever the rating system is lol - newbie that I am)

Any help apreciated as I had to leave the car in the car park and will call into Mazda on the way to work.

Also on refilling the coolant system can I do it just through the coolant cap or do I have to do anything else? (I have a WGT Stainless Steel AST tank if that makes any difference)

Oh and lastly, how much damage can i have done if the coolant buzzer never came on or the pfc showed temp under 85 when i parked her?

Thanks guys

Edd