It’s August, the car is jammed with kids and luggage, and you’re finally on your way to the cottage. Suddenly you realize that your car’s air conditioning system is on the fritz, and your family vacation really starts to heat up.

Automotive air conditioning systems were first introduced in 1940 to address customer demands for relief from unbearable heat. These systems use refrigerant to cool the air and remove the heat from the car’s passenger compartment. Air conditioning also cleans the air that enters the car, and removes excess moisture as it dehumidifies the air.

There are three basic components to any automotive air conditioner system:

1. Compressor–Considered the heart of the air conditioning system, the compressor transfers and compresses refrigerant gas to let the heat out of the car.

2. Condenser–removes heat from the refrigerant and cools down the high-pressure gasses.

3. Evaporator–Acts as the heater core of the air conditioning system. The evaporator removes the heat from inside the car. The refrigerant then condenses the air and transforms it into water.

Cars manufactured in 1995 or later have been equipped with R-134A air conditioning system. These ozone-friendly units do not contain CFCs, are nontoxic and nonflammable.

Prior to 1995, automotive air conditioners came with R-12 refrigerant, most commonly Freon. During that time, a car owner experiencing air conditioner problems needed only to visit a local retailer to purchase a recharge kit. With a can of Freon and basic knowledge, the average driver could easily repair his or her own air conditioning system. When studies confirmed that R-12 systems were contributing to the damaged ozone layer, many countries including the United States banned their manufacture.

Common Problems The most common complaint about automotive air conditioners, particularly R-134 systems, is the odor that permeates from the A/C vents. Mechanics and car manufacturers have concluded that accumulated bacteria and fungus in the evaporator core likely cause the odor. Because the air conditioning system is loaded with moisture, it attracts microbes. The solution offered by automakers is to make the blower motor effective in drying out the evaporator after the A/C system is turned off. General Motors introduced this breakthrough, called Electronic Evaporator Dryer.

This solution might offer relief to some car owners, but not to all. Installing this system can cost hundred of dollars. As a result, many car owners have resorted to finding alternative methods of fighting the odor. Using antibacterial chemicals such as Lysol can be an effective short-term solution. Keeping a can of Lysol handy can go along way for your odorous air problem. Just spay the Lysol inside the car, and in the air intake once a week, for temporary relief from the problem. Another way to help eliminate the odor is to shut off the A/C unit at least one mile before reaching your destination. This will allow enough time for the evaporator to dry out, essentially doing away with the moisture and microbes that cause odor. This can be the easiest and least expensive method in combating the issue.

Caring For Your A/C System

* To keep working efficiently, your automotive air conditioner must be recharged from time to time, depending on how often it is are used. Consult your mechanic or your owner’s manual for information about system recharges.

* Call your mechanic if you see water leaking from the A/C system’s condenser, as this can affect the refrigerant. Have the system repaired before refilling it.

* Replacing the filter once every three months will also help to maintain the performance of your automotive air conditioning system. This is where dust builds up when the A/C system is running.

* Setting the gauge at one specific temperature will also help it perform well. If you constantly switch from one temperature to another, your system will have trouble adjusting accordingly.

Automotive air conditioners can be a driver’s best friend, whether you’re traveling across town or from coast to coast. Keep your A/C unit well maintained, and keep your cool on the road.

This article brought to you by Adelaide Rental Cars in conjunction with 7 Seater Car

With the average price of a new vehicle passing $25,000, it’s easy to fall into the trap of believing you have to spend a small fortune to drive anything worth writing home about. Unless you’re all about impressing your friends, neighbors and co-commuters with the size of your monthly payment, the entry end of the market is filled with a higher concentration of cool cars, trucks and SUVs than ever.

After putting together a list of all the vehicles available for less than $18,000, the editors of Kelley Blue Book’s kbb.com then picked the 10 coolest. Instead of reporting based on vehicles’ Manufacturer’s Suggested Retail Prices (MSRPs), the list is based on each model’s New Car Blue Book value, the price buyers are typically paying in the market. Your actual payment will be determined by the down payment on the vehicle and the finance rate.

The Top 10 Coolest New Cars Under $18,000

• Toyota Yaris-With a long history as a best-seller in Europe, the Toyota Yaris migrates to the U.S. as the least expensive vehicle in the Toyota lineup. Sporting unusually cool styling, Toyota quality and a 34/city and 40/highway MPG rating, the Yaris’ value more than exceeds its under-$12,000 starting price.

• Scion xB-The xB has proven to us that, these days, it’s cool to be square. Not only does its slab-sided styling set it apart, but its boxy dimensions also mean this diminutive and fuel-efficient vehicle is a surprisingly commodious hauler of people and stuff.

• Dodge Caliber-Caliber changes the small-car game by offering a larger, more flexible interior filled with way-cool features like an air-conditioned storage bin to keep drinks cold, rear speakers that flip down to project outward from the open tailgate, a 110-volt outlet for powering small electronics and a self-charging flashlight.

• Kia Sportage-When buying your first SUV, bang-for-the-buck is a very cool thing to find. Pricing out the Kia Sportage is almost fun when you get to include a sunroof, a great stereo and a tire pressure monitor all for under $16,500.

• Chevrolet HHR-As cool as the 1940s-style exterior is, the Chevrolet HHR is equally cool for its efficient use of space and worthwhile features like remote start and the increasingly requisite iPod connector. It offers hauling ability like a compact SUV, yet it handles like a car.

• Ford Fusion-Size does matter, so getting a well-styled, contemporary midsize sedan with the roominess and comfort of the new Fusion is cool. Even better is the unexpected level of equipment for the price, including remote keyless entry, tilt steering wheel and cruise control.

• Nissan Frontier-Utility is in, and nothing’s more utilitarian than a pickup. The Frontier backs up its sharp styling with excellent ride and handling.

• Mazda3-Available as a hatchback or sedan, the Mazda3 is a deft one-two punch to the compact-car segment. We can’t decide which model we like better, but the combination of fine driving dynamics, upscale interior and arresting looks make this a “cool cars” list repeater.

• Honda Civic-You know how U2 were cool, then in the mid-90s they weren’t so cool, and now they’re as cool as ever? Well, the Civic has traveled a parallel path to regain its stature as arguably the finest economy car ever built–and cool once again.

• Scion tC-If you’re cool enough to appreciate it, the slick styling and fashionable features in the tC deliver Lexus-like technology in an affordable package. This year, the improved audio features stand out, including steering-wheel gauges and iPod connectivity.

This article brought to you by Car Finance Company in conjunction with 7 passenger vehicles