Radiator Water level + Antifreeze question

I have question regarding my radiator hose on my golf, I need to replace the bottom radiator hose, if i remove it will coolant flow out? if so do I just add more coolant? will therenot be pocket of air?
 
Yes, coolant will run out. Put a bucket under, collect it and re-add it when you've reconnected the hose.

You may well get airlocks.

Not sure if you have a radiator cap. If so, fill the radiator up through the cap, then close it.

Fill the expansion bottle to the max mark. Squeeze all the pipes, keeping an eye on the bottle to ensure the level doesn't drop too much. Top up as needed.
Then start the engine. As the hoses warm up (may take a few minutes for the engine to get hot enough for the thermostat to open) do the hose massage thing, topping up the expansion bottle as needed.
 
Sinbad said:
Yes, coolant will run out. Put a bucket under, collect it and re-add it when you've reconnected the hose.

You may well get airlocks.

Not sure if you have a radiator cap. If so, fill the radiator up through the cap, then close it.

Fill the expansion bottle to the max mark. Squeeze all the pipes, keeping an eye on the bottle to ensure the level doesn't drop too much. Top up as needed.
Then start the engine. As the hoses warm up (may take a few minutes for the engine to get hot enough for the thermostat to open) do the hose massage thing, topping up the expansion bottle as needed.
Click to expand...

ahh ok thanks..
 
Sinbad said:
Yes, coolant will run out. Put a bucket under, collect it and re-add it when you've reconnected the hose.

You may well get airlocks.

Not sure if you have a radiator cap. If so, fill the radiator up through the cap, then close it.

Fill the expansion bottle to the max mark. Squeeze all the pipes, keeping an eye on the bottle to ensure the level doesn't drop too much. Top up as needed.
Then start the engine. As the hoses warm up (may take a few minutes for the engine to get hot enough for the thermostat to open) do the hose massage thing, topping up the expansion bottle as needed.
Click to expand...

Eish..sounds terribly involved! Cant blieve you guys wanted me to do this myself! Dont get me wrong...I am all for massaging pipes but really now! :p
 
Sinbad said:
It won't be disappearing because of lack of antifreeze. You have a leak somewhere.

Make sure if he's draining the system that he does a good flush too.

VW antifreeze is orange...
Click to expand...
Not as far as I know. G12 and G12+ are both pink.
 
Fazda said:
Correct - someone here is colour blind . :p
Click to expand...

lol
it looks orange in my expansion bottle ok? :P

Besides, I am male. I don't distinguish much apart from the primary colours! ;)
 
Sinbad said:
Yes, coolant will run out. Put a bucket under, collect it and re-add it when you've reconnected the hose.

You may well get airlocks.

Not sure if you have a radiator cap. If so, fill the radiator up through the cap, then close it.

Fill the expansion bottle to the max mark. Squeeze all the pipes, keeping an eye on the bottle to ensure the level doesn't drop too much. Top up as needed.
Then start the engine. As the hoses warm up (may take a few minutes for the engine to get hot enough for the thermostat to open) do the hose massage thing, topping up the expansion bottle as needed.
Click to expand...

Many cars also have a air bleed valve on the engine side where the top pipe connects.
 
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