- Practical Information
- Healthy Air Inside the Car
Does Your Air Conditioner Smell? Causes and Solutions for Unpleasant AC Odors
Unpleasant odors from a car’s air conditioning can make every journey uncomfortable. Whether the smell is musty, moldy, or rotten, a foul-smelling air conditioner usually indicates more than just a temporary issue. A common cause is dirt and microorganisms inside the air-conditioning system. The area around the evaporator and cabin air filter is particularly susceptible, as moisture, dust, and organic deposits can accumulate there.
- Technology
Car Air Conditioning Cleaning Guide: Step by Step to a Clean Vehicle Air Conditioning System
Regular cleaning of your vehicle’s air-conditioning system helps improve the air quality inside the vehicle and can reduce unpleasant odors and deposits on the evaporator and in the cabin air filter housing. Learn what professional air-conditioning system cleaning involves, why the VDI/ZDK Guideline 6032 recommends regular cleaning, and how to find the appropriate vehicle-specific instructions for your vehicle.
- Wissenswertes
- Gesunde Luft im Auto
When and where should you have your car’s air conditioning system professionally cleaned?
A clean car air conditioning system ensures better air quality, greater comfort, and protects your health. But when is the right time for a cleaning – and why are simple solutions often not enough? This article explains how often professional cleaning makes sense, what risks a dirty system entails, and what you should look out for when choosing a workshop.
- Healthy air in the car
- Technology
Air conditioning cleaning for classic cars: clean cabin air for the Porsche 928
Air conditioning cleaning for classic cars? Classics like the Porsche 928 benefit enormously from it. In October 2025, a 928 GT came to our TUNAP workshop – with a typical but easily solvable problem: unpleasant odors from the air conditioning system. In this article, we explain why the 928’s air conditioning system deserves special attention due to its design, how an airco well® cleaning works gently even on sensitive classic cars, and what difference the owner noticed immediately. An exciting look into technology, value preservation, and noticeably better cabin air.
- Healthy air in the car
- Technology
The VDI Guideline 6032 - Automotive air conditioning cleaning according to the current state of the art
How can a car or truck air conditioning system be cleaned to avoid unpleasant odors? How can bacteria and mold be sustainably removed from the evaporator and the pollen filter box? The guideline VDI/ZDK 6032 Sheet 1 'Air technology; Air quality in vehicles; Hygiene requirements for ventilation technology; Car/Truck' provides clarification on this
- Facts worth knowing
- Technology
- Healthy air in the car
Why click cans are not a good choice for cleaning your air conditioner!
In the field of air conditioning cleaning, various methods are often advertised, including the use of click cans. These may seem practical at first glance, but a thorough examination shows that they are far from an effective solution.
- Technology
Air conditioning maintenance - Cleaning - Disinfection - what's the difference?
Air conditioning cleaning, air conditioning maintenance, and air conditioning disinfection? What exactly is the difference between these three services? What makes sense? What is included in the car service at my workshop, and what are additional services? We want to answer these questions for you in this text.
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