Coolant pipe problem

[Carmo13]

1987 325i Sport
Has anybody experienced the coolant pipe that connects the top of the radiator to the thermostat housing blow up like a ballon with pressure?
I am wondering if this is linked to old pipes or a more serious problem?

Any help welcome

[jcm325]

Yes mine did that just before it split and left me stranded! ! Get it changed mate these engines do not like heat!!!! Got mine from euro car parts about £15 I think.

[Carmo13]

Nice one, so hopefully that's confirmed its a structural problem with the pipe rather than a more serious pressure problem or whatever.

[Yeti]

change the hose as it could be fatigued from age but if it still does it, it might mean pressure from the combustion chamber getting into the coolant system