Table of Contents > Heating and air conditioning system > Troubleshooting

VW ID.4 2023 Owner's Manual ➜ Troubleshooting

Activating the air conditioning in the vehicle after unlocking  
1. Open the Stationary air conditioning menu in the Infotainment system.  
2. Tap  
.
3. Activate the Activate air conditioning in the vehicle after unlocking checkbox.  
The air conditioner switches on for five minutes as soon as you open a vehicle door. The air conditioning does not start if you open a vehicle door and the  
vehicle is being charged with alternating current (AC) at that time.  
Depending on the vehicle equipment, in vehicles with Keyless Access, you can go to the Vehicle settings menu in the Infotainment system to set door unlocking t  
Single door or All doors Unlocking or locking using Keyless Access. If door unlocking is set to Single door, the air conditioning will only start when you open the  
driver door. If door unlocking is set to All doors, the air conditioning will start as soon as you open a vehicle door or the trunk lid.  
Checking the programming  
When you switch off the ignition, the Infotainment system shows you the timer that has been set to act next and the functions that have been set.  
Troubleshooting  
or  
Atmospheric CO2 concentration in the vehicle interior is too high  
The indicator light comes on yellow or red.  
The message Health risk! High CO2 concentration. Open windows! or Health risk! CO2 too high. Open windows immediately! may appear in the instrument cluster  
display.  
1. Open all windows immediately.  
2. Contact an authorized Volkswagen dealer or authorized Volkswagen Service Facility to have the air conditioner checked. Volkswagen recommends contacting  
an authorized Volkswagen dealer or authorized Volkswagen Service Facility.  
air conditioner is not working correctly or CO2 concentration cannot be measured  
The yellow indicator light turns on.  
The message Air conditioner is not working correctly. Please contact workshop. may appear in the instrument cluster display.  
1. Contact an authorized Volkswagen dealer or authorized Volkswagen Service Facility to have the air conditioner checked. Volkswagen recommends contacting  
an authorized Volkswagen dealer or authorized Volkswagen Service Facility.  
The cooling mode  
or heating cannot be switched on or the function is limited  
The cooling mode works as soon as the driver seat is occupied.  
If the high-voltage battery is very warm, there are extreme outside temperatures or if the high-voltage battery charge level is too low, the function of the cooling  
mode , the heating and the defrost function may be limited.  
Switch on the fan.  
Charge the high-voltage battery to a sufficient level.  
Check the safeguard on the air conditioning system Replacing fuses.  
Change active combination filters Service.  
If the malfunction persists, contact a suitably qualified professional. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized  
Volkswagen Service Facility.  
NOTICE  
Continuing to operate the air conditioner when it is not working can result in subsequent damage.  
If the air conditioner is not cooling or heating the air, switch it off immediately.  
Have the air conditioner checked by suitably qualified professionals. Volkswagen recommends contacting an authorized Volkswagen dealer or  
authorized Volkswagen Service Facility.  
The windows are fogged up  
The windows fog up when they are colder than the ambient temperature and the air is very humid. Cold air does not absorb as much moisture as warm air which is  
why windows fog up more frequently during cold seasons.  
1. To improve the heating and cooling output, keep the air intake in front of the windshield free of ice, snow, and leaves Vehicle care.  
2. Leave the air duct in the rear section of the luggage compartment uncovered so that air can flow through the vehicle from front to back.  
3. Switch on the defrost function Defrost function.  
The temperature unit has changed  
You can change the temperature units for all temperature displays in the vehicle using the Infotainment system.  
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1. Tap the  
home button.  
2. Open the Settings menu.  
3. Select the Units menu item.  
Water or water vapor under the vehicle  
In the case of high outside humidity and temperatures, condensation can drip from the air conditioning system evaporator and pool under the vehicle. This is norma  
and does not mean there is a leak in the system.  
When outside humidity is high and temperatures are low, condensation can evaporate when the auxiliary air conditioning is running. If this is the case, water vapor  
may escape under the vehicle. This does not indicate vehicle damage.  
Stationary air conditioning cannot be switched on  
If the stationary air conditioning runs for a long time when the charging connector is not connected, the high-voltage battery will drain. The stationary air conditioning  
does not start if the battery charge level of the high-voltage battery is not sufficient.  
Noises when the stationary air conditioning is switched on  
Operating noises when stationary air conditioning is switched on are normal and not an indication of a fault.  
Controls are responding differently than expected  
Moisture, dirt and grease may limit the functioning of the controls.  
1. Always keep the control panels clean and dry.  
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