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Model specific boards => Golf mk3 => Topic started by: kr1s77 on 08 February 2008, 07:38

Title: changing coolant
Post by: kr1s77 on 08 February 2008, 07:38: hi all i am changing my coolant today, how long after i drain it at normal running temp should i wait before refilling it?
Title: Re: changing coolant
Post by: oggy on 08 February 2008, 09:54: Ideally until the engine is cold, but I don't think it really matters as the expansion co-efficient of the various contact metals is not that great given the temperature difference at operating temp. ie there is not much danger of snapping head bolts or similar. Make sure you flush the block and heater matrix out too - not just the radiator - and top up after a run if required. Do not run the engine whilst draining either!
Title: Re: changing coolant
Post by: kr1s77 on 08 February 2008, 11:16: how do i drain the block and heater matrix
Title: Re: changing coolant
Post by: oggy on 08 February 2008, 11:32: undo connecting inlet/outlet pipes. Hose in at one end, drain at other
Title: Re: changing coolant
Post by: Mikester on 08 February 2008, 22:48: Engine is cold, take of bottom rad hose, empty out. Hook back up with NEW jubilee clips, and refil. start engine until rad turns on. Top up. AS the system will need more water once rad has turned on when it gets to mid temp.
Title: Re: changing coolant
Post by: kr1s77 on 09 February 2008, 20:09: thanks for the help, i done it today :smiley:. i changed the coolant temp sensor aswell and it cured my over revving problem aswel :laugh:. my car now idles great at 800 - 840 and has new g12+ coolant.

well chuffed :grin:
Title: Re: changing coolant
Post by: Mikester on 09 February 2008, 21:38: Nice one, hope it makes problem free motoring, until the next Vdub problem, lol :laugh:
Title: Re: changing coolant
Post by: Pete Taylor on 10 February 2008, 07:32: You'll find that you will want to buy a new coolant bottle too to make it look good lol
Title: Re: changing coolant
Post by: Mikester on 10 February 2008, 17:09: Quote from: Pete Taylor on 10 February 2008, 07:32
You'll find that you will want to buy a new coolant bottle too to make it look good lol

I want too do that, lol!
Title: Re: changing coolant
Post by: Pete Taylor on 10 February 2008, 17:12: http://cgi.ebay.com/ebaymotors/VW-Golf-Bora-Jetta-MK4-Coolant-Expansion-Tank-Brand-NEW_W0QQcmdZViewItemQQ_trksidZp1638Q2em122QQcategoryZ46096QQihZ017QQitemZ270209039070QQrdZ1QQsspagenameZWD2V
Title: Re: changing coolant
Post by: Mikester on 10 February 2008, 17:15: Nice one pete, i really want too, but i cba to drain the system again! lol
Title: Re: changing coolant
Post by: Pete Taylor on 10 February 2008, 17:16: you don't need to drain it all, disconnect the coolant bottle and tip it empty. clamp the pipes, attach new one and fill up with the stuff you emptied..
Title: Re: changing coolant
Post by: Mikester on 10 February 2008, 17:19: Yeah.... Could do. Found a UK one, but then i will want to change the hoses.... then the washer bottle, then i will want a 1.8turbo.....

http://cgi.ebay.co.uk/VW-GOLF-MK3-EXPANSION-TANK-C144_W0QQitemZ200198408574QQihZ010QQcategoryZ9889QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Uk seller
Title: Re: changing coolant
Post by: Pete Taylor on 10 February 2008, 17:22: the washer bottle cleans up good, and a rag can clean the hoses!
Title: Re: changing coolant
Post by: Mikester on 10 February 2008, 17:23: Quote from: Pete Taylor on 10 February 2008, 17:22
the washer bottle cleans up good, and a rag can clean the hoses!

I meant replace for like some blue hoses or something, make it look tidier or something.... :/
Title: Re: changing coolant
Post by: Pete Taylor on 10 February 2008, 17:25: (http://i22.tinypic.com/n3981z.jpg)

Mine..
Title: Re: changing coolant
Post by: Mikester on 10 February 2008, 17:27: thats sexy, GOing to have to get one now. lol. Youve tempted me beyond return! lol
Title: Re: changing coolant
Post by: Pete Taylor on 10 February 2008, 17:30: mwuhaha..

It's a telltale sign of how well the car is looked after IMO
Title: Re: changing coolant
Post by: Mikester on 10 February 2008, 17:34: Quote from: Pete Taylor on 10 February 2008, 17:30
mwuhaha..

It's a telltale sign of how well the car is looked after IMO

Well exactly, when someone is buyin and looks at the engine, you want it to look cared for, even if i do redline daily. loool.
Title: Re: changing coolant
Post by: Pete Taylor on 10 February 2008, 17:36: You wouldn't do it unless you knew it could take it..
Title: Re: changing coolant
Post by: Mikester on 10 February 2008, 18:02: Quote from: Pete Taylor on 10 February 2008, 17:36
You wouldn't do it unless you knew it could take it..

Im sure the girl can take it. lol. I look after her well :D