Is there an easy way to bleed the 2.5 diesel cooling system ?
Posted: Mon May 04, 2026 1:53 pm
One of the constant fears I have carried as a long time Bongo owner is the post refill coolant bleed.
If you lose coolant is one thing (trace leak / replace pipes /rad etc.) and I keep to the 5 year schedule for refreshing the coolant to
keep the pipes in good shape and reduce corrosion risk. I am not averse to getting a pro to do it, as I do. However my pro is not exactly nearby.
I tolerate a drive and let the pro do his thing. However one cannot always rely on the pro being there forever and there comes a time when
one must attempt to learn for themselves.
Espcially if for example the radiator goes or an easy pipe goes. I have to spend big money on just getting the undriveable Bongo on low loader to said pro.
I kindly request any easy method for drain, refill and most importantly bleed of the system.
Even a written guide from those who know would be generous.
Thanks in advance.
Edit :I will start the thread off, this Youtube video does not seem too complex, but the video is slightly disjointed.
https://www.youtube.com/watch?v=6Jpa6yYGDtk
If you lose coolant is one thing (trace leak / replace pipes /rad etc.) and I keep to the 5 year schedule for refreshing the coolant to
keep the pipes in good shape and reduce corrosion risk. I am not averse to getting a pro to do it, as I do. However my pro is not exactly nearby.
I tolerate a drive and let the pro do his thing. However one cannot always rely on the pro being there forever and there comes a time when
one must attempt to learn for themselves.
Espcially if for example the radiator goes or an easy pipe goes. I have to spend big money on just getting the undriveable Bongo on low loader to said pro.
I kindly request any easy method for drain, refill and most importantly bleed of the system.
Even a written guide from those who know would be generous.
Thanks in advance.
Edit :I will start the thread off, this Youtube video does not seem too complex, but the video is slightly disjointed.
https://www.youtube.com/watch?v=6Jpa6yYGDtk