Bypass valve malfunction
Controls coolant flow and engine cooling.
Costs
Every car issue can be caused by different things. Here are the most common ones
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Potential Causes
- Spare parts
- Work time
max.
Potential Causes
- Spare parts
- Work time
max.
Potential Causes
- Spare parts
- Work time
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Attention! Critical error!
In case of failure, the engine may overheat. In the worst case, there is a serious risk of damage to the engine.
Discussions
User of our Carly Community asked the following questions regarding that fault:
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Details
Probability
Based on the values and symptoms you have entered, a crude estimation of the probability of this problem can be made
HIGH
Typical consequences
If this defect is detected, it may lead to the following problems:
- Engine damage
Function of coolant bypass valve
The coolant bypass valve regulates the amount of coolant flowing into the interior heat exchanger. The coolant in the passenger compartment basically has the task of providing heat for the heating system in the passenger compartment of the vehicle.
The coolant bypass valve can be positioned in two valve positions overall.
Either the valve is open so that coolant can flow into the passenger compartment or the valve is closed so that the coolant flows back into the engine's cooling circuit. In most vehicles, the valve for the coolant bypass is installed near the bulkhead (separating the passenger compartment from the engine compartment).