Cars of Crackers - Fuck all cars, forever

[SiC]

I'd pressure test and vacuum bleed it too. See if there are any leaks and also prevent any air locks in the system. Are these prone to air locks?

[Bren]

I am sorry you are having more problems.

My 530d is a 62 plate. I have found myself looking at newer - but dull - cars as I am getting the fear that it may throw up a huge bill.

[Six-cylinder]

On 03/02/2026 at 13:04, JMotor said:

TL:DR - Coolant caps can be shit.

Had a similar problem with 1.8 K powered ZT. I replaced the seals in it, but the car was sold before I knew if it had worked.

Might not be the actual fault. But it's cheap and easy to do.

My Rover 114SLi lost a load of water on the way Gaydon Museum, that turned out to be simply a split header tank cap. It was a worry that I had suffered HGF!

[warninglight]

Another vote here for a pressure test. Get some of the UV coolant dye, chuck a bit of that in and pump it up so 13psi or so.

If it's finding a way to leak when hot you'll find it in no time with a UV light.

If it holds pressure for ages without leaking then change the cap!

[Crackers]

Got an empty spot in your yard? Wanna make some money?

Buy my scrap!

"Just scrap it" comments need not apply thanks.