Coolant Expansion Tank

What is a Coolant Expansion Tank?

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

We also have 15 owner problems that mention it.

What problems can be caused by a faulty Coolant Expansion Tank?
15 problems that mention the Coolant Expansion Tank

Showing the latest 10, see more problems here

1
response
My expansion tank is empty but cant find the leak

i cant find the leak as my expansion tank keeps being empty i think it leaks when driving or when engine is running as ive said i cant find the leak

2013 Vauxhall Zafira 1.6 petrol
Posted: Sep 21, 2023
1
response
My expansion tank keeps splitting on my Octavia 2008

Just had a new expansion tank fitted and after 3 week it’s got a split in it again

2008 Skoda Octavia 1.9
Posted: Jun 19, 2023
1
response
Cooling system headache !!

See below in brackets for the feed i was reading. I seem to have the exact same issue. Some great advice was left for the user but it was never followed up? Did it work, what happened in the end? (H...

2010 Vauxhall Vivaro 2.0 cdti
Posted: Aug 9, 2022
1
response
Since having a new battery fitted the roof or boot won’t open

Had a new battery fitted now the roof and boot won’t open

2006 Vauxhall Tigra 1.4
Posted: Jun 12, 2022
1
response
Water comming out expansion tank when car hot

drained water and refill but when gets to 90 degrees expansion tank bubles over have fit new ex cap also no heat from heater just blows cold.

2010 Citroen Berlingo multispace 1600cc
Posted: Apr 24, 2022
1
response
Water comming out expansion tank when car hot

temp goes up to 90 and water bubbles up in expansion tank

2010 Citroen Berlingo multispace 1600cc
Posted: Apr 22, 2022
11
responses
It wouldn't start this morning battery was flat

Eventually got the car going but no power on the accelerator

2005 Vauxhall Tigra 14
Posted: Apr 13, 2022
1
response
Horn not working

press the button on the steering wheel and there's no noise

2007 Vauxhall Tigra Exclusiv
Posted: Dec 5, 2021
1
response
Overheating

Over heating and Walter coming out from the pipe that comes of the walter bottle and gose to back of engen I don't no how to take that pipe of any help please on what I need to take it to get to pipe...

2011 Citroen DS4 1.6
Posted: Apr 9, 2021
10
responses
Roof wont open

To begin with, 3 months ago the roof went up and down no problems. Then i did not bother opening it through the winter months. Now i try and all i get is a consistant beeping, roof does not move at al...

2006 Vauxhall Tigra BH11
Posted: Mar 1, 2021
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Engine Cooling System parts