Thermostat Fault Symptoms & Problems

The Thermostat is part of the car Engine Cooling System system. We have 3 associated problem symptoms connected to it.

We also have 578 owner problems that mention it.

3 Symptoms of Thermostat Problems
We have 578 owner submitted problems mentioning the Thermostat

Showing the latest 10, see more problems here

1
response
KL15 fuse blown

Think related to 4x4 indicator light not working/solenoid not actuating, might have occurred through heavy tow load?? KL...

2000 Vauxhall Frontera 2.2dti 3dr SWB
Posted: Apr 12, 2021
1
response
Vacuum in expansion tank

Cockpit alarm sounds when driving after less than 10 miles but when engine is warm STOP flashes up on dash but doesn't s...

2017 Vauxhall Vivaro 1.6 bi turbo minibus
Posted: Apr 2, 2021
1
response
Hot air then goes cold

hot air then goes cold temp gauge just about moves . Does this all the time hot then cold but drives fine ( could it be...

2003 Volkswagen Polo 1.4 tdi
Posted: Mar 28, 2021
2
responses
Temperature gauge

Berlingo Multispace, Y reg , 2001, 1.6 petrol. Temperature gauge on dashboard suddendly starts to rise and stop light g...

2001 Citroen Berlingo 1.6 petrol
Posted: Mar 8, 2021
1
response
Temperature gauge keeps shooting up and the engine warning light comes on

Engine comes on stop light comes on and the temperature gauge keeps going up and down

2006 Vauxhall Vivaro 1.9 tdi
Posted: Feb 21, 2021
1
response
Heater not warm

Started my car this morning and initially the front screen was clearing, but then it was blowing cold air even though se...

2010 Ford Focus 1.8TDi
Posted: Feb 6, 2021
1
response
RADIATER NOT GETTING HOT

DRVE VAN 70 MILES RAD STILL DONT GET WARM AND FANS COME ON WHEN STOP

2015 Volkswagen Caddy 16 TDI
Posted: Jan 24, 2021
1
response
Engine temperature goes very high after start up

The temperature gauge on my Skoda creeps up very high after a cold start up, to the point I need to pull over and let it...

2017 Skoda Superb TDI
Posted: Jan 24, 2021
1
response
Engine temp

Engine temperature drops with heating on and also takes ages to heat up ....... 1.2 twinport 05 agila

2005 Vauxhall Agila 1.2 twinport
Posted: Jan 12, 2021
5
responses
No communication with abs/esp unit

Since last posting multiple garages have tried to solve the problem, end result is abs/esp unit cannot communicate. All ...

2007 Peugeot 207 Gti
Posted: Jan 7, 2021
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Engine Cooling System parts