We rely on our air con to keep us sane in the Aussie heat, but how do you know when it's screaming for a service?
Are you using more petrol than usual? Is your AC making weird noises? Many drivers wonder "does air con use petrol" when they notice increased fuel consumption, and the answer is yes – a faulty AC system can significantly impact your fuel efficiency. Let's explore the telltale signs that your car's air conditioning needs some TLC.


Weak Airflow and Inconsistent Cooling
One of the most common signs that your car's AC needs servicing is weak airflow from the vents. If the air isn't blowing as strongly as usual, or if it's inconsistent, there may be an issue with the blower motor or a blockage in the system.
Similarly, if the air isn't as cold as it used to be, this could indicate a problem with the compressor or low refrigerant levels. If you’re noticing these symptoms, it's crucial to get your car’s AC checked.
Strange Noises When the AC Is On
Unusual noises when you turn on the AC can also be a warning sign. Squealing, grinding, or rattling sounds may indicate a problem with the compressor or other moving parts of the system.
These noises shouldn't be ignored, as they can often lead to more significant and costly repairs if left unattended. When it comes to car AC troubleshooting, addressing unusual sounds early can save you from expensive repairs down the track.


Leaks and Unpleasant Odours
Additionally, if you detect any unpleasant odours coming from your car's vents when the AC is on, this could indicate a build-up of mould or bacteria in the system. Not only is this unpleasant, but it can also be a health hazard.
Looking After Your Air Conditioning System
Regular servicing should include checking refrigerant levels, inspecting the compressor and other components, and replacing the cabin filter.


Reduced Fuel Efficiency
An inefficient AC system has to work harder to cool the car, which in turn uses more fuel. If you've noticed a sudden increase in your fuel consumption without any other changes in your driving habits, your AC could be the culprit.
Regular Servicing: The Key to a Healthy AC System
Regular maintenance can prevent major issues and ensure your AC is running efficiently.

Spot any of these AC SOS signals in your Audi or Volkswagen? Don't sweat it! Northside Autohaus has your back. We're the go-to AC experts on Sydney’s North Shore and Northern Beaches. We'll get your system back to its peak performance, so you can cruise in cool comfort.
Book your AC service with our team today and say goodbye to those sweaty commutes!