How can I make my 540i air conditioner colder?

For starters, use a sun-blocking shade in the windshield while you’re parked, or look for a shady parking spot. Closing all the passenger vents in your car can help redirect cold air toward you, cooling you off faster. Still need more chill? Head to Firestone Complete Auto Care for an A/C performance check and recharge.

Why do I get hot air from my 540i 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 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 540i's A/C system.

Does the A/C in my 540i rely on gas?

Your 540i’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.

Why does my 540i have a vinegary smell coming from the A/C?

If the air conditioning in your 540i 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.

Why won’t my 540i’s A/C cool the vehicle when the car is stopped?

There could be issues with one or more components in the air conditioning or electrical system. Your 540i may have a faulty cooling fan or low refrigerant.

Where can I get my 540i’s A/C repaired?

Firestone Complete Auto Care has decades of experience inspecting and repairing 540i air conditioning systems. Schedule an A/C repair appointment at one of our locations near you today.

2017 BMW 540i A/C Repair Near You

Get Started

Schedule A/C Service for Your BMW 540i

Feeling the heat from your A/C? Our trained technicians can take a look at your 2017 BMW 540i 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 BMW 540i

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 it's burning your hands. That puddle in the driver’s seat? Sweat. Ugh. You take a deep breath and ask yourself, “Who can fix my BMW 540i A/C?” Easy — Firestone Complete Auto Care! We know BMW vehicles, and our trained technicians can identify and repair issues with 2017 BMW A/C systems. Bring your BMW 540i to your local Firestone Complete Auto Care

During this initial A/C performance check, we’ll look at the state of your 2017 BMW 540i’s A/C system to evaluate what repairs are necessary (if any). 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 BMW 540i A/C system to identify points where refrigerant fumes could be escaping the system. If there's a leak, we'll find it and fix it.

540i A/C Recharge

While your 2017 BMW 540i’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 BMW’s specifications to evacuate the system. Finally, we’ll recharge the A/C system with new refrigerant and after one final test to be sure the system is cooling properly, you’re good to go. Our technicians are trained to efficiently perform 2017 BMW 540i A/C recharges.

Troubleshooting BMW 540i A/C Problems

Warm air isn't the only BMW 540i A/C problem you may 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. And smelly A/C in a 2017 BMW 540i? You could have a moldy evaporator case, or you may simply need a new cabin air filter installed. 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 540i — without all the sweat puddles!

Questions About 2017 BMW 540i A/C Systems

How can I make my 540i air conditioner colder? For starters, use a sun-blocking shade in the windshield while you’re parked, or look for a shady parking spot. Closing all the passenger vents in your car can help redirect cold air toward you, cooling you off faster. Still need more chill? Head to Firestone Complete Auto Care for an A/C performance check and recharge.
Why do I get hot air from my 540i 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 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 540i's A/C system.
Does the A/C in my 540i rely on gas? Your 540i’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.
Why does my 540i have a vinegary smell coming from the A/C? If the air conditioning in your 540i 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.
Why won’t my 540i’s A/C cool the vehicle when the car is stopped? There could be issues with one or more components in the air conditioning or electrical system. Your 540i may have a faulty cooling fan or low refrigerant.
Where can I get my 540i’s A/C repaired? Firestone Complete Auto Care has decades of experience inspecting and repairing 540i air conditioning systems. Schedule an A/C repair appointment at one of our locations near you today.