Radiator cap where is it

Your radiator cap will typically be a flat topped metal cap slightly smaller than the top of a soda can, usually located at the very front right corner just under your engine hood while facing your engine. This is however dependent on the make and model of the vehicle, for instance most BMW's will have a black radiator cap / bleed screw located slightly further back tucked up against the engine cover. It should however in almost all situations be the cap furthest to the front of the vehicle as this is where your radiator is located. Be sure to allow your vehicle to sit for a short while before undoing the radiator cap as it builds up considerable pressure and heat while running.