Draining cooling system

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Vodim
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Draining cooling system

Post by Vodim »

Hi,

I am about to drain the cooling system to replace the very old coolant. However I cannot locate the hoses mentioned in the Bentley manual. Attached is a picture of the Bentley procedure and one of my engine. Could someone help me identify “lower coolant hose (1) from water pump at connection pipe” and “center coolant hose (2) from water pump”.
ImageImage
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mioba
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Re: Draining cooling system

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Dont drain from the pump, its too much effort and those hose clips are a pig.
Drain from lowest point - coolant hoses near the radiator.
The spare wheel carrier makes a good backrest.
Drain, fill with water, run it, let it cool. Repeat 4 times till water is clear. On the last two runs use posh water.
Drain, fill with 8 litres chosen neat coolant. Then add posh water to make it full.
Happy bleeding.
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ajsimmo
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Re: Draining cooling system

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Or just use the drain points provided in the cylinder heads (between pushrod tubes - you need to remove guards first).

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Stesaw
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Re: Draining cooling system

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ajsimmo wrote: 19 Jul 2026, 23:04 Or just use the drain points provided in the cylinder heads (between pushrod tubes - you need to remove guards first).

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If they aren't seized solid  :wink:
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clift_d
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Re: Draining cooling system

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ajsimmo wrote: 19 Jul 2026, 23:04 Or just use the drain points provided in the cylinder heads (between pushrod tubes - you need to remove guards first).

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It's a 1.6TD engine.
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mioba
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Re: Draining cooling system

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ajsimmo wrote: 19 Jul 2026, 23:04 Or just use the drain points provided in the cylinder heads (between pushrod tubes - you need to remove guards first).

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Not the lowest point. Water flows down.
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ajsimmo
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Re: Draining cooling system

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clift_d wrote:
ajsimmo wrote: 19 Jul 2026, 23:04 Or just use the drain points provided in the cylinder heads (between pushrod tubes - you need to remove guards first).

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It's a 1.6TD engine.
Ah, he didn't mention that (and the pics aren't working). As you were Image

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ajsimmo
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Re: Draining cooling system

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mioba wrote:
ajsimmo wrote: 19 Jul 2026, 23:04 Or just use the drain points provided in the cylinder heads (between pushrod tubes - you need to remove guards first).

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Not the lowest point. Water flows down.
They're pretty low on a WBX, but it seems it's a diesel. Forget I was here...

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Vodim
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Re: Draining cooling system

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Haha… thanks anyway! 😄 Hoses near radiator it is! 👍
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clift_d
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Re: Draining cooling system

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By the way, pictures hosted on IMGUR are no longer visible in the UK without a VPN or similar, so if you can host your images somewhere else then you're likely to get more engagement on your posts.
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mioba
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Re: Draining cooling system

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clift_d wrote: Today, 16:41 By the way, pictures hosted on IMGUR are no longer visible in the UK without a VPN or similar, so if you can host your images somewhere else then you're likely to get more engagement on your posts.

Wondered why alot of images "not available in your region" when i am in the UK.
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