Nearest A/C Repair for Your 1999 Mercedes-Benz S420

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Schedule Your Mercedes-Benz S420 A/C Service

Feeling the heat from your A/C? Our trained technicians can take a look at your 1999 Mercedes-Benz S420 A/C system and recommend a repair plan. Schedule A/C service today and get ready to chill out.

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A/C Repair Service for Your Mercedes-Benz S420

When you get in the car on a hot summer day, the last thing you want is a broken air conditioner. Your steering wheel feels like lava. Your skin sticks to the driver’s seat. You take a deep breath and ask yourself, “Who can fix my Mercedes-Benz S420 A/C?” Firestone Complete Auto Care — that’s who! We know Mercedes-Benz vehicles, and our trained technicians can identify and repair issues with 1999 Mercedes-Benz A/C systems. Bring your Mercedes-Benz S420 to your local Firestone Complete Auto Care

During an A/C performance check, we'll determine the condition of your 1999 Mercedes-Benz S420 A/C system to see if repair work is required. This check will include an examination of system pressure, a visual inspection, and a leak test. If we suspect a leak, we’ll send a U/V dye through your A/C system or use a “sniffer” to find the leak. What’s a “sniffer,” you ask? It’s a specially designed machine that’s used on parts of your Mercedes-Benz S420 A/C system to detect refrigerant fumes escaping from the system. If your A/C system has a leak, we’ll find and repair it.

S420 A/C Recharge

When we perform an A/C repair on your 1999 Mercedes-Benz S420, we’ll also do an A/C evacuation and recharge. To do this, one of our technicians will remove the refrigerant in your A/C system (if there is even any left to remove). Then, they’ll perform an evacuation (also known as a discharge) on the entire system per Mercedes-Benz guidelines. To finish, we’ll add new refrigerant to recharge the A/C system, and once we’ve done a final test on the system ourselves, you’re good to go. Our technicians are trained to efficiently perform 1999 Mercedes-Benz S420 A/C recharges.

Other Mercedes-Benz S420 A/C Problems

Hot air is a common Mercedes-Benz S420 A/C problem, but it’s not the only issue you might encounter. Other common A/C problems include weak airflow, which could indicate an old ventilation fan, a seal or hose that needs replacing, or mold buildup in your A/C system. An A/C system that starts off blowing cold air but then turns warm can mean there’s a malfunctioning compressor clutch, a leak, or a blown fuse. Are you breathing in some “interesting” new odors in your 1999 Mercedes-Benz S420? You could have a moldy evaporator case, or you may simply need a new cabin air filter installed. Our trained technicians will do what they can to solve your A/C problems. So, chill out. We're here to help you get the blast back in your S420’s A/C!

Questions About 1999 Mercedes-Benz S420 A/C Systems

  • How do I make my S420 air conditioning colder? Park in the shade whenever you can, and use a reflective sunshade in the windshield when you’re parked. If you’re the only one in the car, close all the vents except the ones that point toward you. Give the system the final boost it needs with an A/C performance check and recharge from Firestone Complete Auto Care.
  • Why do I get hot air from my S420 A/C? If your car’s air conditioning isn’t blowing cold air at all (or it tries, then turns warm), you could have a clogged expansion valve, a faulty compressor clutch, a leak, or a malfunctioning fuse in the system.
  • What can cause an A/C system leak? A/C system leaks are often due to a combination of age and moisture. Rubber seals and gaskets naturally degrade over time, allowing refrigerant to exit and moisture to enter your S420's A/C system.
  •  Does running the A/C in my S420 use gasoline? S420 air conditioning systems don’t use gasoline as a direct fuel source. However, they do rely on engine power, which can indirectly affect your vehicle’s gas mileage.
  • Why does the A/C in my S420 smell like vinegar? If the air conditioning in your S420 smells like vinegar, it could be due to bacteria growth on system components such as the evaporator and heater cores. Bacteria can grow when moisture accumulates on air conditioning system components, providing a breeding ground for microorganisms.
  • What is causing my S420’s A/C to only work when the car is in motion? There could be issues with one or more components in the air conditioning or electrical system. Your S420 may have a faulty cooling fan or low refrigerant.
  • Where can I get my S420’s A/C repaired? When you need your S420 air conditioning system repaired or inspected, trust Firestone Complete Auto Care. Schedule an appointment at our A/C repair shop near you.