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Discussion Starter · #1 ·
hi there..i'm new to this forum and have a question regarding heater core replacement on a '99 S70. I have seen some pics and descriptions of the process, but do you have to first drain the cooling system to do this job? How much coolant can I expect to come from the heater core and lines?<br>Any tips for this job would be apprecaited! Ordered the part, Behr w O Rings. thanks. <p> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0"> Just a follow up to this heater core replacement...it was not bad at all to do, I followed the Bay13 instructions. I used a bit of a different method to deal with the coolant though...I placed the opening of a 13 gallon plastic garbage bag under the coolant lines and bottom of the core, and when I pulled the core back to separate it from the lines, I caught all of the coolant in the bag..not a drop to deal with on the floor. Make sure the coolant is cool if you do this. You'll get about a couple of quarts. The rest is pretty easy. thanks again, tom<BR><BR>
<i>Modified by txc500 at 4:33 PM 7-17-2006</i>
 

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Yes, drain the coolant. Even after that, you should still expect the heater-core itself, and the lines leading to it ti be full of coolant. Have lots of towels ready to mop it up, so it stays off your carpet. You should expect a liter or so to spill out I guess.
 

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When I replaced my heater core, I did not need to drain the coolant. Due to the leak, there was a large amount of coolant sitting in the plastic "tub" that the heater core sits in. I used a black plastic bag to catch most of the coolant, and covered the floor with towels. The carpet has to be pulled back towards the seats so getting excessive amounts of coolant on the carpet really isnt an issue.<br>Good luck with the install, it isnt that difficult and took less than an hour.
 

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Discussion Starter · #4 ·
Re: (black007)

thanks for the info...the parts store just told me they are out of the Behr part but they have the Auradia part instead...same price $122...hope it's as good!
 

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Re: heater core replacement (txc500)

On both heater cores that I've done, I did not have to drain the coolant. I used hose pinch-off pliers -- see <A HREF="http://www.shop.com/op/~K_D_Tools_Hose_Pinch_Off_Pliers-prod-29684099-38879035?sourceid=298" TARGET="_blank">http://www.shop.com/op/~K_D_To...d=298</A> for an example -- on the heater hoses in the engine compartment to keep the system contained. It will help to do this with a cold engine and you should open and close the coolant reservoir cap in order to release any pressure that may still be in the system. You will still have some coolant sitting in the core and hoses, so be prepared with a few towels in the passenger compartment.
 
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