How can I make my E420 air conditioner 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.

What’s making my E420 A/C put out warm air?

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 causes A/C system leaks?

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 E420's A/C system.

Does the A/C in my E420 rely on gas?

Your E420’s A/C uses some power from the engine to run. So, while your air conditioning system may not directly use gasoline as a fuel source, using the A/C can indirectly affect your vehicle’s fuel efficiency.

What can cause the A/C in my E420 to smell like vinegar?

It’s easy for moisture to accumulate in your car’s air conditioning system, which can cause microorganisms like bacteria to grow. In turn, this bacteria growth can cause the A/C in your E420 to produce a vinegary odor.

Why does my vehicle have to be moving for my E420’s A/C to work?

If your A/C only works when the vehicle is moving, there could be a problem with part of your E420’s A/C or electrical system. Potential issues include low coolant or a faulty cooling fan.

Where can I get my E420’s A/C repaired?

When you need your E420 air conditioning system repaired or inspected, trust Firestone Complete Auto Care. Schedule an appointment at our A/C repair shop near you.

1997 Mercedes-Benz E420 A/C Repair Near You

Get Started

Schedule an A/C Service Appointment for Your Mercedes-Benz E420

Feeling the heat from your A/C? Our trained technicians can take a look at your 1997 Mercedes-Benz E420 A/C system and recommend a repair plan. Schedule A/C service today and get ready to chill out.

Schedule an Appointment

A/C Repair Service for Your Mercedes-Benz E420

When you get in the car on a hot summer day, the last thing you want is a broken air conditioner. Is that a hot stove? Nope, just your steering wheel. Your skin sticks to the driver’s seat. You take a deep breath and ask yourself, “Who can fix my Mercedes-Benz E420 A/C?” Firestone Complete Auto Care — that’s who! We’ve got experience with Mercedes-Benz vehicles, and our qualified technicians can diagnose and service the A/C system in your 1997 Mercedes-Benz. Bring your Mercedes-Benz E420 to your local Firestone Complete Auto Care

In this A/C performance inspection, we’ll check out the current condition of your 1997 Mercedes-Benz E420 A/C system to evaluate what repairs are necessary (if any). We’ll test overall system performance, check for any leaks, and measure the system pressure. If we think there might be a leak, we'll run a special U/V dye through the system or use a "sniffer." What’s a “sniffer,” you ask? It’s a specially designed machine that’s used on parts of your Mercedes-Benz E420 A/C system to detect refrigerant fumes escaping from the system. If there's a leak, we'll find it and fix it.

Recharge the A/C in Your E420

While your 1997 Mercedes-Benz E420’s air conditioner is being serviced, 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 use Mercedes-Benz’s specifications to evacuate the system. To finish, we’ll add new refrigerant to recharge the A/C system, and once the technician tests the cool blast for themselves, you're ready to get back on the road. Our technicians know how to keep your A/C in tip-top shape with 1997 Mercedes-Benz E420 A/C recharges.

Troubleshooting Mercedes-Benz E420 A/C Problems

Hot air is a common Mercedes-Benz E420 A/C problem, but it’s not the only issue you might encounter. Typical A/C problems also 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. What about those (somewhat unpleasant!) smells coming through the A/C vents in your 1997 Mercedes-Benz E420? That could be the result of a dirty cabin air filter (an easy fix!) or a moldy evaporator case. Our technicians will work to solve your A/C problems to the best of their ability. Don’t sweat it — we’re here to help you chill out again in your E420.

Frequently Asked Questions for 1997 Mercedes-Benz E420 A/C Systems

How can I make my E420 air conditioner 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.
What’s making my E420 A/C put out warm air? 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 causes A/C system leaks? 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 E420's A/C system.
Does the A/C in my E420 rely on gas? Your E420’s A/C uses some power from the engine to run. So, while your air conditioning system may not directly use gasoline as a fuel source, using the A/C can indirectly affect your vehicle’s fuel efficiency.
What can cause the A/C in my E420 to smell like vinegar? It’s easy for moisture to accumulate in your car’s air conditioning system, which can cause microorganisms like bacteria to grow. In turn, this bacteria growth can cause the A/C in your E420 to produce a vinegary odor.
Why does my vehicle have to be moving for my E420’s A/C to work? If your A/C only works when the vehicle is moving, there could be a problem with part of your E420’s A/C or electrical system. Potential issues include low coolant or a faulty cooling fan.
Where can I get my E420’s A/C repaired? When you need your E420 air conditioning system repaired or inspected, trust Firestone Complete Auto Care. Schedule an appointment at our A/C repair shop near you.