How to remove coolant in block

Tiny
CORY2427
  • MEMBER
  • 2012 VOLKSWAGEN BEETLE
  • 2.5L
  • 5 CYL
  • 2WD
  • AUTOMATIC
  • 97,156 MILES
I have a tool that pulls a vacuum on coolant system to avoid air and was wondering how I could get remaining out of block. System holds 9 liters and can hardly get 4 out of it and if you could use g13 instead of g13 they no longer make it.
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Saturday, December 28th, 2019 AT 1:17 PM

12 Replies

Tiny
SCGRANTURISMO
  • EXPERT
Hello,

In the diagrams down below I have included the procedures from the vehicle manufacturer on the proper way to drain and fill your vehicle's cooling system. Please go through this guide and get back to us with how everything turns out. I hope this helps and have Happy Holidays.

Thanks,
Alex
2CarPros
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Sunday, December 29th, 2019 AT 9:52 AM
Tiny
CORY2427
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So I would have to fill and drain several times to clear coolant out the block and everything?
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Sunday, December 29th, 2019 AT 2:33 PM
Tiny
SCGRANTURISMO
  • EXPERT
Hello again,

No. It looks like you just undue the bottom radiator hose and this should allow all of the coolant to drain from the system. The instructions sent earlier are straight from the vehicle manufacturer, and this is what they recommend.

Thanks,
Alex
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Sunday, December 29th, 2019 AT 5:34 PM
Tiny
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Must be extra steps they are leaving out because of the system holds 10.57 liters and when you pull hose off it only drains like 3 to 4 liters if that. Something not right.
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Sunday, December 29th, 2019 AT 6:48 PM
Tiny
SCGRANTURISMO
  • EXPERT
Hello again,

If this is the lowest spot on the cooling system, then it is going to be where to drain the system at. Fluids, by nature will always go to the lowest point of anything. Do you have the pressure released in the system? This would cause the system not to drain completely.

Thanks,
Alex
2CarPros
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Sunday, December 29th, 2019 AT 6:54 PM
Tiny
CORY2427
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Yes and would putting g13 in it hurt it? It say g12 on reservoir but can’t seem to fine it anywhere.
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Sunday, December 29th, 2019 AT 7:18 PM
Tiny
SCGRANTURISMO
  • EXPERT
Hello again,

It should be. They have the same cooling abilities the main difference is that G12 uses glycol and G13 uses glycerin, which is better for the environment than glycol.

Thanks,
Alex
2CarPros
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Monday, December 30th, 2019 AT 5:34 AM
Tiny
CORY2427
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Should I rinse it or just drain and fill?
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Monday, December 30th, 2019 AT 8:33 AM
Tiny
SCGRANTURISMO
  • EXPERT
Hello again,

Either way should be fine. If you decide to do a flush and fill. here is a link below that explains the process:

https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars

Please get back to us with how everything turns out.

Thanks,
Alex
2CarPros
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Monday, December 30th, 2019 AT 2:41 PM
Tiny
CORY2427
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Can you give me instructions on draining heater core and block? I know there's hoses you can disconnect from heater core on cylinder head to drain heater core.
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Monday, December 30th, 2019 AT 2:50 PM
Tiny
SCGRANTURISMO
  • EXPERT
Hello again,

The heater core should drain along with the cooling system.

Thanks,
Alex
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Monday, December 30th, 2019 AT 6:54 PM
Tiny
AUDREYJACOBS
  • MEMBER
The procedure will not drain engine block. Plug has to be removed from block to accomplish this.
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Monday, September 19th, 2022 AT 7:16 PM

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