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MY CAR is equipped with a double-locking system. What is the difference between this and a conventional locking system?
The double-locking feature makes it virtually impossible for an intruder to open a locked car door without the correct key or remote transmitter. 		My car's air-conditioning works well for a day after I refill the air-con gas. Then it doesn't cool as well again. I notice a greenish fluid leaking from one of the pipes. Could that be the problem?
Your car's air-conditioning system is leaking refrigerant. The green fluid you see could well be the ultra-violet dye that is sometimes dispensed into the system to detect leakages.
After 30 minutes of driving, my car's undercarriage emits a burning smell. What could be wrong?
When your car's exhaust system heats up, the object melts and causes the burning smell. Take your car to a workshop to identify the source of the smell.
 
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