If you encounter an issue with the coolant temperature after replacing the thermostat, it's usually due to air in the cooling system. So, before you suspect the newly installed part, be sure to bleed the cooling system!
After replacing the coolant thermostat, if you experience reduced heating and cooling performance, the new thermostat is often wrongly suspected. In reality, the issue might have occurred during the repair itself!
When replacing the thermostat, the engine's cooling system is opened, allowing coolant to escape and air to enter. If these increasingly complex systems are not thoroughly bled after the repair, air pockets remain in the system. This not only leads to poor circulation of the coolant and hence inadequate heating and cooling performance but can even result in severe engine damage in the long run!
Because trapped air can cause localized overheating!
Using the standard workshop air pressure connection, the vacuum bleeding device (see Figure 2) creates a vacuum in the cooling system (see Figure 3). This process completely evacuates the air from the system and allows new coolant to be drawn in without any bubbles. This ensures that there are no insulating air pockets in the cooling circuit.
For further helpful information on thermostat installation and our product lineup, please refer to:
Absolutely! It might sound unusual at first, but it makes sense. Why? Here are four cold, hard reasons:
Clear Vision
The air conditioner not only cools but also dehumidifies. The moisture in the air condenses on the evaporator's surface. This prevents foggy windows, which is crucial for road safety.
Perceived Temperature
You don't need to worry about freezing with most air conditioning systems. Temperature sensors monitor the outside temperature and prevent the air conditioner from running below 4°C to avoid freezing of condensation.
Smooth Operation
When the compressor is activated, it ensures the lubrication of all components in the air conditioning circuit with oil. Seals and hoses remain flexible.
Well-Maintained
Regular air conditioning service is important for reliable operation, as is the annual replacement of the cabin air filter. This prevents issues like mold growth on the evaporator, for example.
Regardless of whether it's winter or summer,
Turn off the air conditioner 5 to 10 minutes before reaching your destination. This allows the evaporator to dry, minimizing the growth of bacteria.