Thermostat

What is a Thermostat?

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

We also have 599 owner problems that mention it.

What problems can be caused by a faulty Thermostat?
599 problems that mention the Thermostat

Showing the latest 10, see more problems here

1
response
Engine Temperature

Engine temperature not rising to normal level. Water pump and belt has been replaced.

2003 Vauxhall Zafira 2.0L Diesel.
Posted: Oct 23, 2021
3
responses
Temperature gauge fluctuating

temperature gauge fluctuating, until it gets up to temperature. then remains steady at 90. but until then it beeps saying engine temp too hot, then goes to zero. last year, when coming up to temperatu...

2007 Peugeot 207 1.4 petrol
Posted: Oct 1, 2021
1
response
2013 1.6 heater taking long time to heat up

In car directional heater taking a long time to heat up

2013 Vauxhall Zafira 1.6 design
Posted: Sep 30, 2021
1
response
Heat gauge light comes on

Took thermostat out and from time to time the heat gauge lights comes on with alarm but can still open coolant bottel without any problem,does have two sensors a two pin and a one pin how can i test t...

2004 Citroen C3 1.4
Posted: Sep 23, 2021
1
response
My interior light and radio have stopped working on my vauxhall vivaro

My interior light and radio have stopped working on my vauxhall vivaro

2012 Vauxhall Vivaro 1.9
Posted: Sep 7, 2021
2
responses
Strange rubber smell inside car

Started without obvious cause. Like hot bicycle tyres. Can be while driving but there in cold car. No obvious mechanical problem. Thermostat working fine.

2005 Suzuki Wagon-R+ 1.2
Posted: Sep 3, 2021
1
response
Reversing Light Colour Wires

my reverse lights do nt work i ve checked the switch on the gaer box and the lamps are ok but where is the fuse for them?

2008 Peugeot 308 1.6 hdi
Posted: Aug 30, 2021
1
response
Radiator is stone cold except for a area around the inlet hose.

As engine gets hotter (over normal) on tickover, heat spreads to all of radiator by which time the temperature gauge is in the red before the fan kicks in. Is this normal as the Fronty 2.0 Sport doe...

1995 Vauxhall Frontera 2.0 Sport
Posted: Aug 16, 2021
1
response
STOP sign and engine management icon illuminated and temperature gauge on max. No water in reservoir until I slowly release the cap, when coolant level rises up

STOP sign and engine management icon illuminated and temperature gauge on max. No coolant in reservoir until I slowly release the cap, when coolant level rises up. Aso, top radiator hose is really pre...

2004 Vauxhall Vivaro 1.9TDI SWB
Posted: Aug 8, 2021
3
responses
Front passenger door not locking/unlocking

Front and rear doors lock stuck in locked position, I renewed both locking mech and back door is now fine but front door still not working, ie stays locked when operated in any way key/fob.. I welcome...

2006 Volkswagen Golf 2.0 tdi Sport
Posted: Jul 23, 2021
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