Air conditioning faults in the Volvo XC40 usually have one of these causes: a lack of refrigerant, a leak in the system or a software fault after an update. The result is a cabin that stays warm or an air conditioning system that only cools partially, exactly when you need relief most. Do you recognise this problem in your own Volvo XC40? Then read below to find out what may be wrong and what you can do about it.
Why is the Volvo XC40 air conditioning not blowing cold air?
The most common cause of air conditioning that is not cooling is a lack of refrigerant. After 2 to 3 years, the refrigerant may have evaporated or absorbed moisture. As a result, the air conditioning blows warm air, or only cools while driving. A squeaking or whistling noise during use often indicates too little refrigerant in the system.
In addition to a shortage, there may also be an actual leak. Volvo uses a fluorescent tracer for this, making a leak visible under ultraviolet light. Cleaning the system usually costs only a few tens of pounds. However, locating and sealing a leak requires specialist knowledge and equipment.
Faulty components as the cause
Sometimes the problem is not the refrigerant. In that case, it concerns a component of the system itself. Different components can wear out or fail. This has noticeable effects on the operation of the air conditioning.
- Air conditioning fan: if the air conditioning cools while driving but not when stationary, the fan may be faulty or blocked.
- Compressor: a rattling noise under the bonnet indicates a worn compressor.
- Blower: if no air comes out of the vents at all, warm or cold, the heater fan may be faulty due to a build-up of dirt or a defective resistor.
Software problems after an update
In the Volvo XC40, owners regularly report that the air conditioning completely fails after a software update. This happened, for example, after version v.3.1.9. This may be because the new software checks battery cell modules more strictly. A faulty module temporarily blocks the climate control system. In many cases, a system reset restores communication between the climate module (the component that controls the air conditioning and heating) and the battery management system (the system that monitors the condition of the battery).
Resetting and checking the air conditioning yourself
Before you go to the garage, try a few steps yourself first. Often, a simple reset will solve software-related faults.
- Hold the home button for 20 seconds until the screen turns off and the Volvo logo appears again.
- Hold the demist button (defrost) for 20 seconds until the SOS button flashes red.
- Set the air conditioning to maximum temperature and let it blow at full power for 30 seconds, then set the air conditioning to minimum temperature and repeat this a few times.
Check whether the air conditioning is actually cooling properly. Start the car, set the air conditioning to the coldest setting and measure the temperature at the air duct after 10 minutes. A properly working air conditioning system will then reach 7 to 8 degrees.
What does it cost to repair air conditioning problems in the Volvo XC40?
The cost of an air conditioning repair depends heavily on the cause. A lack of refrigerant is often dealt with during the annual service and costs on average around €150. Cleaning the system to remove a musty smell is considerably cheaper and usually costs only a few tens of pounds.
In the event of a leak in the system or a faulty component such as the compressor or fan, the costs are higher. This is because specialist diagnostics and replacement are required. Volvo advises not to repair leaks yourself and not to open the system yourself without the proper equipment. If the message Parking climate service required (a warning that the climate system is not functioning properly when stationary) appears in the Volvo Cars app, a visit to an authorised Volvo workshop is necessary.
Preventing air conditioning faults in your Volvo XC40
A few habits will help you prevent the air conditioning from wearing out or developing a smell more quickly. These tips help your system keep working well for longer.
- Turn off the air conditioning at least 10 minutes before arrival, so the evaporator can dry out and a musty smell is prevented.
- Have the air conditioning checked and topped up every 2 years, even if it still seems to be working properly.
- Keep an eye on notifications in the Volvo Cars app, such as warnings about the parking climate.
‘Car owners come across these problems regularly.’
Want to know more about car problems and maintenance?
Air conditioning faults are just one of many technical challenges. Car owners come across these problems regularly. On Carnews you will find more articles about common issues, maintenance tips and experiences from other car models. Find out on the website which faults are known for your car and how to recognise and fix them.
Frequently asked questions
What are the ‘common signs’ that the air conditioning in my Volvo XC40 is not functioning properly?
Common signs are that the air conditioning blows no cold air, but instead cool or warm air, or only cools partially (for example only on one side of the car). The airflow may also be weaker than normal or stop altogether. Unusual noises such as squeaking, whistling or rattling when the air conditioning is in use also point to problems. It is also suspicious if the air conditioning suddenly stops cooling altogether after a software update.
Which ‘basic checks’ can I carry out myself to ‘identify’ the cause of an air conditioning fault in my Volvo XC40?
You can check whether the air conditioning still seems to have enough refrigerant yourself by letting the car idle, setting the air conditioning to the coldest setting and seeing whether genuinely cold air (around 7–8 °C) comes from the vents after about 10 minutes. Carry out a system reset by holding the home button on the central display for about 20 seconds until the Volvo logo appears, and, if necessary, a second reset by holding the demist button (defrost) for 20 seconds as well. You can also do a ‘cycle reset’ by setting the air conditioning to maximum temperature and fan speed for 30 seconds and then to minimum temperature for 30 seconds, repeating this several times. Finally, check whether any fault or service messages about the climate or parking climate system appear in the instrument cluster or the Volvo Cars app, as this may indicate a deeper problem that requires a garage.
When should I take my Volvo XC40 ‘to a specialist’ for an air conditioning fault, and what are the ‘expected costs’?
Take your Volvo XC40 to a specialist if the air conditioning still does not blow cold air after reset attempts, if you hear rattling or squeaking noises, suspect a leak, or if messages such as “(Parking) climate service required” appear in the car or app. An authorised Volvo workshop is also needed if the system fails immediately after a software update and the problem does not disappear after a system reset. Expected costs: for inspection, cleaning and topping up the refrigerant, usually a few tens of pounds to around £150. For larger repairs, such as a leak or a faulty compressor, the costs can be significantly higher.
Which ‘maintenance’ is essential to ‘prevent air conditioning problems’ in a Volvo XC40?
Essential maintenance includes periodic air conditioning checks (roughly every 2 years), including inspection and, if necessary, topping up the refrigerant and a general system check at an authorised Volvo workshop. In addition, keep the condensate drain and ventilation channels clean and have the system professionally cleaned if necessary to prevent blockages and odours. Switch off the air conditioning for the last 10 minutes of the journey so the evaporator can dry out and there is less chance of mould forming. Keep the software up to date and have the system read out immediately if there are fault messages or a noticeable drop in cooling performance.
Are there any ‘specific, common air conditioning faults’ that are ‘typical’ of the Volvo XC40?
Yes, there are a few common air conditioning faults that are reported particularly often in the Volvo XC40. Typical issues are shortages or leaks of refrigerant, faults with the fan or compressor, and software problems in which, after an update, the air conditioning (or parking climate) fails entirely or partly. Complaints such as cooling only on the driver’s side or no cooling at all after a specific software update (such as v3.1.9) are also characteristic of this model. These faults often require a combination of a system reset and, if necessary, diagnosis and repair by an authorised Volvo workshop.
