Coolant change

1slow370

alright took a gander through the manual and it mentions nothing of a valve by the firewall on a 370. if it's green cap with a sort of air valve in it don't touch it for the love of betsy or you'll need to recharge your ac. basically it's fill the reservoir, take the air plug out of the drivers side tank of the radiator towards the engine, slowly(less than 2l per minute according to the manual) add coolant to the radiator fill neck until it comes out the hole in the tank, reinstall the screw, refill the radiator, install the cap and warm the car up till the thermostat opens and the lower hose gets hot (stop if the engine begins overheating. let the car cool then add coolant where necessary, and run the car again(then keep doing this 2-3 more times until the level no longer goes down). -Factory manual abridged

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