p0128
Moderate
Maserati · Sedans & Sports Cars
Coolant Thermostat (Coolant Temp not reaching normal operating temp)
Quick Answer
Error code P0128 on your Maserati Sedans & Sports Cars means: Coolant Thermostat (Coolant Temp not reaching normal operating temp). This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Check coolant level and top off if needed
2
Monitor engine temperature during warm-up
3
Inspect thermostat housing for leaks
4
Test thermostat with hot water method
5
Replace thermostat if necessary
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Thermostat assembly
Coolant fluid
Gasket seal kit
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