Club 80-90 Forums

Behind my number plate flap is what looks like a coolant expansion tank.  It's bone dry and has no cap on it and there's a 2nd tank in the engine bay.  Is this likely to be have been left in situ when the engine was swapped?  Cheers

That should be full to the mark and connected to the other tank via the cap and a length of hose

A Cap like this one?  So a length of pipe between the pipe connection on this one to the identical connection on the other cap?

On my first picture, the length of hose visible on the right side of the tank goes to the cap on the other tank.
Is that not right?

sauce1001 wrote: ↑09 May 2022, 18:46 On my first picture, the length of hose visible on the right side of the tank goes to the cap on the other tank.
Is that not right?

That’s correct

You’re missing the cap on that but it’s not got a pipe , Is your other header tank full

Yes the other header tank is full.  So should I top up the tank behind the number plate with coolant? And do I need a solid cap on the tank behind number plate?  Apologies for all the questions!

My AAZ is using a standard golf mk3 tank,the lid is about 3 inches across not the standard t3 set up

The system works by sending the coolant to the rear tank when it gets hot and expands,then when the engine cools it gets sucked back to the tank with the blue cap so always kept full ,so put coolant in the rear tank up to the minimum mark when cold and fill the one with the blue cap to full,think the pipe from the blue cap goes through the cap to the bottom of the rear tank

That's great, big thanks for everyones help.