Expansion tank

Hi all

I noticed a couple of weeks back after a 50 mile run on a very warm day, that the coolant in the expansion tank had risen to just an inch below the cap. I bought a new cap just in case. Today the water is up to the cap and bubbles are coming from the small pipe on the right (bleed line I think) the temp gauge as rises to its normal position of just under the half way.

I don,t think the radiator fan kicked in at any time.

The water level when cool is the same as normal

Does this mean the system needs bleeding?

Cheers

martin l wrote: Does this mean the system needs bleeding?

I think that I bled mine to death. I'd park nose down on a hill and let it run for a while before bleeding the radiator and centre bleed points. There always seemed to be air getting in somewhere. There are more hoses than a Florida residential area in that setup! :lol:

Coolant system - Servicing guide - Bleeding and filling.




Coolant system - Servicing guide - Bleeding and filling.

Certainly sounds like you have an airlock, but if you have not done anything to your cooling system recently, sounds like there may be an issue elsewhere. I would try yet another cap and fully bleed out the coolant system. Then see if you can get it pressure tested.
After that just keep a close eye on the coolant level, carry spare coolant with you and keep a look out for leaks.
Oh and test out your radiator fan(s).

Sundance

Thanks Sundance
Nothing as been done the cooling system recently but I will follow your sugestions

cheers

If your radiator fan doesn't seem to be coming on I would check the fuse, its in the fuse box under the bonnet.