Where do I add coolant on a 1996 VW Golf? - 1996 Volkswagen Golf

Janet, top up your coolant in the coolant reservoir/expansion tank it is the rounded bottle closer to the shock tower.. Remove Blue or Black cap when engine cold and top up, run engine till warm and recheck after cool and top up again if necessary. Make sure to have leak repaired sooner then later to prevent future costly repair.
Check the attached links,instruction and guides, Good luck
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vw v5 agz problem

this coolant level indicator add coolant S.W off and on . check coolant leakage from radiator there is thermo S.W sender little leakage re tigh . keep coolant on level .

Could be a small hole or a crack in the housing that the sensor goes in. Also check the housing gasket.

Most radiator drains today are made of plastic and when you try to open them they either break or leak when you close it. I'd take the bottom hose off. Make sure the coolant isn't hot.

coolant will go into the radiator,there willbe a cap indicating that its the radiator cap under the bonnet,can go into radiator overflow bottle as well but check level indicator on the side

remove bottom radiator hose or look for a drain plug at the bottom of radiator

clean throtle body
marko

add coolant....if that doesnt work...check the thermostat...then if its not that its the water pump

www.ebookmanual.net/vw-golf-jetta-service-and-repair-manual.html

headgasket can leak and comprssion is compressing air into coolant system as well as burn it.check for white spark plugs ends.start engine cold with cap of off res rev engine if coolant blows out of resivor at you headgasket is fried.