p0128
Easy Fix
Skoda · Sedans & Hatchbacks
Coolant Temperature Below Thermostat Regulating Temperature
Quick Answer
Error code P0128 on your Skoda Sedans & Hatchbacks means: Coolant Temperature Below Thermostat Regulating Temperature. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Monitor coolant temperature with scan tool
2
Test thermostat in hot water bath for opening point
3
Verify coolant level and condition
4
Check for coolant leaks
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
Parts You May Need
Thermostat assembly
Coolant temperature sensor
Coolant and flush solution
Gasket sealer
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