I drive 3181 N42 02 Reg. I'v been told the car has oil leak, jus yesterday whilst driving I could smell something like burning metal and a particular noise I don't know where it is coming from. Please help!

If you are using oil in your engine; the burning smell is oil leaking onto your exhaust manifold

The probable cause is oil dripping onto the exhaust and being burnt. This puts the valve cover gasket as the prime suspect as the other two areas are lower down

Hehe...Well, unfortunately without smelling it, or looking at the vehicle, there's not much I can do for you here. Check underneath for oil leaks getting onto the hot exhaust, or maybe a plastic bag stuck to exhaust, etc. Good luck.

Could have an oil gasket leaking oil onto something hot.

You may have a leaking valve cover gasket and oil is making it's way down to the exhaust or something else that gets very hot. Check your cylinder head for excessive oil dripping down off of the base of the valve cover. Check your power steering pump and hoses for leaks. After you get to where you're driving, look under the car and see where the oil spots are, if there are any. If it's dark or black in color, it's engine oil. If it's more like a red-ish color, it's transmission fluid. See where the oil spot is on the ground and check the engine and see about where it could be leaking.

if it is a sweet smell then your heater core is leaking and will need replaced.

This sounds like an oil leak. Look for leaks at valve covers, and other areas above the exhaust. It often is the burning off of this small volume of oil, that makes the smell like you describe. Inspect the whole exhaust...Something is melting, somewhere.

To me antifreeze smells like cat wee but look for oil leaking from there on to the exhaust. I would assume something is leaking on to the exhaust then burning off

If you had to add oil, more then likely there an oil leak could be a gasket or oil seal, where ever the leak is at it's falling on the exhaust manifold and burning the oil, that's what you smell. Have it check cause low oil will damage you engine.

A burning rubber smell under the hood might be just that - consider having your accessory drive belt inspected, as it is possible that a bearing in one of the accessories (alternator, power steering pump, air conditioning compressor, etc.) or in the tensioner mechanism might be failing. This sort of fault will often cause that particular accessory bearing to spin less freely than the others, and as a result the belt continues to pass over the associated pulley at the same speed as the engine. Essentially, the result is similar to a car spinning its tires on dry pavement - and a similar 'burning rubber' odor is the friction and heat of the rubberized belt.

If the odor is more like burning oil than burning rubber, the rear valve cover gasket is situated in a place that results in dripping oil, even small and unnoticable amounts, onto the exhaust manifold that is directly underneath the valve cover.

These two items might be places to start your inquiry. Best of luck to you!