There is moisture in the tail-lamps of my two-month-old car. There may be a leak in the housing. I am worried that this will cause discolouration of the lamps in the long run. What should I do?
It is not uncommon for tail-lamps to be partly filled with moisture, even in a new car.
It usually occurs in showroom display cars, which have been lying in an air-conditioned environment for a long spell.
Once it is moved out of the showroom into the high-humidity outdoors, it is likely for condensation to occur. This is what you usually see under the lamp covers.
Such an occurrence is not a major problem. While the tail-lamps are weather-proofed, they are not air-tight. This is because they are designed for easy removal for bulb replacement.
Hence, you can remove them to blow-dry with a regular hair-dryer. This should remove all the moisture. In fact, on many cars, the bulbs can be removed from inside the boot, making the task even simpler.
But if you continue to observe traces of water inside the lamp, especially after a car wash or heavy rain, it means there is a leak in the seal between the lens and the housing.
In this case, the only solution is to replace the whole unit. It is under warranty if the car is new.