Can I make my GLS450 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.

Why is my GLS450 A/C blowing hot air?

Maybe your A/C starts cool but then gets warm. Or maybe it never gets cold in the first place. Either way, your A/C troubles could be traced back to a clogged expansion valve, faulty compressor clutch, blown fuse, or leak.

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 GLS450's A/C system.

Does my GLS450 A/C run on gas?

While your vehicle’s A/C system doesn’t directly use fuel, it does draw power from the engine, which can impact the fuel consumption of your GLS450.

My GLS450’s A/C smells like vinegar! What can cause that?

If a vinegar-like odor comes from your A/C, bacteria growth could be the culprit. Moisture accumulation in the air conditioning system of your GLS450 creates a breeding environment for microorganisms.

Why does my vehicle have to be moving for my GLS450’s A/C to work?

Damaged or worn components in your GLS450’s electrical or air conditioning system can cause the A/C to only work when the car is moving. You may be dealing with low coolant or a faulty cooling fan.

Where can I get my GLS450’s A/C repaired?

Firestone Complete Auto Care inspects and repairs GLS450 air conditioning systems. Book an appointment at one of our A/C repair shops near you today.

2017 Mercedes-Benz GLS450 A/C Repair Near You

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Schedule Your Mercedes-Benz GLS450 A/C Service

Feeling the heat from your A/C? Our trained technicians can take a look at your 2017 Mercedes-Benz GLS450 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 Service for Mercedes-Benz GLS450

There’s nothing worse than cranking your car air conditioner on a hot day — and discovering it’s broken. Is that a hot stove? Nope, just your steering wheel. Your skin sticks to the driver’s seat. You wipe your brow and wonder, "Who can fix the A/C in my Mercedes-Benz GLS450?" Firestone Complete Auto Care — that’s who! We’ve got experience with Mercedes-Benz vehicles, and our trained technicians can identify and repair issues with 2017 Mercedes-Benz A/C systems. Steer your Mercedes-Benz GLS450 to your nearest Firestone Complete Auto Care

During this initial A/C performance check, we’ll look at the state of your 2017 Mercedes-Benz GLS450’s A/C system to see if repair work is required. This check includes a visual inspection, performance test, and pressure and 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. A “sniffer” isn’t a technician with a good nose! It’s a machine that’s used on different parts of your Mercedes-Benz GLS450 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 GLS450

Let's say we repair your 2017 Mercedes-Benz GLS450 A/C system. We will also perform an A/C evacuation and recharge. To start this process, a technician will flush out the old refrigerant from your vehicle’s A/C system. Next, they will evacuate the system according to Mercedes-Benz's recommendations. To finish, we’ll add new refrigerant to recharge the A/C system, and after one final test to be sure the system is cooling properly, you’re good to go. Our technicians know how to keep your A/C in tip-top shape with 2017 Mercedes-Benz GLS450 A/C recharges.

Troubleshooting Mercedes-Benz GLS450 A/C Problems

You may think warm air is the only potential Mercedes-Benz GLS450 A/C problem you’ll have, but you may notice other issues, too. Other common A/C problems include weak airflow, which could be caused by mold or mildew buildup, a loose hose, an old ventilation fan, or a compromised seal. If you notice that your A/C system’s air is cold at first, then quickly goes warm, this can mean there’s a malfunctioning compressor clutch, a leak, or a blown fuse. And smelly A/C in a 2017 Mercedes-Benz GLS450? 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. We’re here to help you get back on the road in your GLS450 — without all the sweat puddles!

2017 Mercedes-Benz GLS450 A/C System FAQs

Can I make my GLS450 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.
Why is my GLS450 A/C blowing hot air? Maybe your A/C starts cool but then gets warm. Or maybe it never gets cold in the first place. Either way, your A/C troubles could be traced back to a clogged expansion valve, faulty compressor clutch, blown fuse, or leak.
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 GLS450's A/C system.
Does my GLS450 A/C run on gas? While your vehicle’s A/C system doesn’t directly use fuel, it does draw power from the engine, which can impact the fuel consumption of your GLS450.
My GLS450’s A/C smells like vinegar! What can cause that? If a vinegar-like odor comes from your A/C, bacteria growth could be the culprit. Moisture accumulation in the air conditioning system of your GLS450 creates a breeding environment for microorganisms.
Why does my vehicle have to be moving for my GLS450’s A/C to work? Damaged or worn components in your GLS450’s electrical or air conditioning system can cause the A/C to only work when the car is moving. You may be dealing with low coolant or a faulty cooling fan.
Where can I get my GLS450’s A/C repaired? Firestone Complete Auto Care inspects and repairs GLS450 air conditioning systems. Book an appointment at one of our A/C repair shops near you today.