Air Conditioning Servicing

Air Conditioning

At John Delany Motors we have three fully trained Air Conditioning Specialists to provide a high quality service for the maintenance of your vehicle’s Air Conditioning system – from Annual Servicing to general fault and leak finding.

Your air conditioning is charged up with R134a gas, which over time dissipates from the system. Around 10% of the gas is lost each year preventing the air conditioning from performing to its full potential. It is advised that the air conditioning system is checked in your vehicle a minimum of every 2 years. The A/C service is not included as part of your regular car service so if your car is over 2 years old, it may be due a re-charge.

It’s a common myth that air conditioning should only be used in the summer months. You should run your air conditioning periodically, even in the winter. The cool dry air can clear a windscreen much quicker than turning on your climate control.

Over time condensation builds up on the evaporator and becomes a breeding ground for bacteria and fungi. If your A/C doesn’t smell as fresh as it once did, this is the reason. When not in regular use, run your air conditioning for 10 minutes every week.

An Air Conditioning service can normally be done while you wait and takes around an hour. Pre-booking is required.

Don’t leave it until a hot summer’s day to find out it’s not working!

What your air conditioning service involves:

Dependent on the problem that you’re having with your system we do a variety of things to service your A/C.

We pressure test all A/C systems with nitrogen prior to filling an empty system. Nitrogen is less harmful to the environment than the R134 gas as it makes up 78% of our atmosphere. This pressure test allows us to search for any leaks within the system and repair them accordingly.

If there is a leak we will aim to locate the leak and report with full costings of any repairs required.

If no pressure loss is present at the time of test we will then continue to recharge the system with the correct amount of refrigerant, we will also add a special UV dye so if there is any further issues with loss of gas it can be traced using a UV light.

Other A/C problems:

A vehicle may have a correct gas pressure but there are other faults causing the A/C to stop working. We test the system to find your fault and report back to you with costings for any repairs needed.

Top Tips:

  • Have your air conditioning system checked every 2 years.
  • When not in regular use run your air conditioning for 10 minutes every week, even in the Winter.
  • Once you exceed 40 miles per hour wind up your window and turn on the A/C, it’s more fuel efficient.

Frequently asked questions:

My air conditioning isn’t as cold as it used to be.

In most cases there isn’t enough gas in your system. This could be down to a number of factors. You may have a leak or the system may not have been serviced in a while meaning the gas has dissipated (around 10% a year). It could also be an electrical fault or a component failure.

My air conditioning takes a long time to get cool.

You should notice a difference in temperature within minutes if not seconds of turning you’re A/C on. Your A/C probably needs a service.

My air conditioning is producing an unpleasant odour.

This is due to a bacterial build up, a de-bug will remove any odours. This de-bug is not included in your AC service, it is an additional charge.

My car makes a ‘whoosing’ noise when I turn it off.

This may be due to the air moving around in the system because the pressure is not high enough. Your A/C needs re-gassing.

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