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> 1998 Volvo V70 - Heater Core Replacement W/ Pics
baustin
post Aug 4 2008, 11:50 AM
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Hello all! This is my first post on this forum. I have read/posted on other forums, but they are having problems, so I was decided to come here.

I finally got around to replacing my busted heater core today. Symptoms I had were a "sweet" smell when I turned the heat on, damp carpet on both the driver and passenger side floors, film on the windshield and finally the check coolant light started coming on.. My Volvo is a standard 1998 V70.

I initially called the local dealership and a local import repair shop and was quoted $700+ and $1000+. I unfortunately don't have that kind of money floating around, so I searched online.

I managed to get a brand new Behr heater core for $140 shipped and after 2.5 hours of work, I feel like I saved between $600-$900. I did not replace the thermostat.

It wasn't the easiest thing I've done in my life, but I have never done ANY maintenance work on my car until now.

Here is the leaking that was happening when I turned the heat on (sorry environment). Fortunately its hot here most of the year.
(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_012.jpg)
(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_013.jpg)


First of all, I drained the coolant. I found the plastic screw at the bottom of the radiator. I bought a collection bin for the coolant which I am going to take to a local disposal facility.
(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_001.jpg)

After I removed the coolant cap, the coolant flowed out quickly. After the coolant was drained, I ran a bunch of distilled water through to flush the system.
(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_002.jpg)

(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_003.jpg)

After pulling the carpet back, there are panels on the driver and passenger sides which hide the heater core "sarcophagus"
Driver
(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_004.jpg)
Passenger
(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_007.jpg)

Here is the "sarcophagus". You can see where the fluids were draining out onto the carpet.
(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_006.jpg)

(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_010.jpg)

Wet carpet.
(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_008.jpg)
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baustin
post Aug 4 2008, 11:52 AM
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These are the screws that need to be removed. 5 in total.

Only the one in the top left. Do this on both sides of the "sarcophagus"
(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_015.jpg)

And this one that is hidden by the grey cable. Again, do this on both sides
(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_009.jpg)

And the one that holds the 2 tubes in place.
(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_014.jpg)

The old heater core next to the new one.
(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_016.jpg)

(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_017.jpg)

(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_018.jpg)

I didn't take any pictures after this, but everything basically goes in reverse after that. I refilled with new coolant and she seems to be running great! No drippage and the "sweet" smell is gone!

Hope this helps somebody like ya'll helped me!
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MKC70
post Aug 4 2008, 02:18 PM
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****

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Drives: 1999 Volvo C70 coupe



Nice write up on heater core swap. I'm sure it will save people some money in the future.
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iceracer
post Nov 9 2008, 05:48 PM
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Drives: v70 volvo GMC safari, Plymouth voyageur



Thanks for a great write up and the pix have been a great help. God love engineers, because looking up under the dash is insane how it all comes together.

ANYWAY, I have it all apart to the point of trying to remove the heater core itself. How do I get it out?
It's pretty tight, and I don't want to use any force to do it. Is there an easy way, or rather a proper way to remove it?

After having gotten this far, I think it may have only been the O rings leaking after-all, but figure since I'm this far into it and I have already ordered the parts
I may as well change it at this point.

Thanks in advance, Terry
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perryman
post Dec 20 2008, 01:12 AM
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thanks for the post, just completed my heater coil replacement tonight and it's working great
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Greg 98 Volvo v7...
post Sep 12 2009, 09:10 PM
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Amazing...I really want to thank this individual.

I succesfully replaced the heating core, warning light went off in 98 Volvo v70 XC!!

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deepee422
post Sep 26 2009, 09:26 AM
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Hello,

Thanks for posting this as I have a quote from my Volvo mechanic for $650. Once you remove the screws, how do you get the heater core out? Did you have to replace any hoses? Any gotcha's to look out for.

You can send reply to dlpeguese@sbcglobal.net

Thanks,

deepee422
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adriennesvolvo
post Oct 5 2009, 05:56 PM
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Thanks for a great post!! Very informative. Would this work for a 1999 s70??
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pfrancis
post Dec 14 2009, 06:09 PM
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QUOTE (baustin @ Aug 4 2008, 11:52 AM)
These are the screws that need to be removed. 5 in total.

Only the one in the top left. Do this on both sides of the "sarcophagus"
(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_015.jpg)

And this one that is hidden by the grey cable. Again, do this on both sides
(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_009.jpg)

And the one that holds the 2 tubes in place.
(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_014.jpg)

The old heater core next to the new one.
(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_016.jpg)

(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_017.jpg)

(IMG:http://i14.photobucket.com/albums/a306/baustin420/heater_core_replacement/2008-08-01_heater_core_018.jpg)

I didn't take any pictures after this, but everything basically goes in reverse after that. I refilled with new coolant and she seems to be running great! No drippage and the "sweet" smell is gone!

Hope this helps somebody like ya'll helped me!

You are a VOLVO GOD, Thanks
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pfrancis
post Dec 14 2009, 06:14 PM
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You are a VOLVO GOD Thanks !!!!!!!!
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abrayman
post Jan 15 2010, 09:01 PM
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Drives: 1999 volvo s70, 1991 ford escort gt



this was a great write up!! it saved me a lot of money and time, being an auto student i was able to have it done in less then an hour, but it beats taking out the whole dash like i had to in my escort. thats for the info
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Ivylink
post Feb 13 2010, 09:12 PM
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Nice post. If I have a heater core problem, I know a bit more because of your efforts to post.

Is this one of the better Volvo forums for the do-it-yourselfers? If not, what are the others.
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sleddriver
post Mar 25 2010, 05:24 PM
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Good job!

I smell a whif of coolant whenever I turn on my heater, but then it goes away. Never fogs up the windshield, or wets the carpets, etc. Perhaps it's just o-rings or something small.

Been like that for awhile. I'll have to take another look.
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adriennesvolvo
post Jul 20 2010, 11:44 AM
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Hi, thanks for the great post. I have a 1999 s70, I'm assuming it would be the same procedure. Do you think it would be the same parts? And did you have to buy 2 heat cores or does it come in sets of 2?? Thanks again. Hope to hear from you guys soon.
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upnorth_handyman
post Nov 30 2010, 09:06 AM
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Ok, So I am digging up an old post, but I need a question answered. Do you remember how easy or bad it was to ge tthe core out from its little nook after all screws are out? I am about to undergo this process and saw that 2 people had asked withough getting responses. I know it was 2 years ago you made this post, but I hoped that either the person that started it, or someone that has done this knows the difficulty of getting the old core out.
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volvamos
post Dec 8 2010, 01:11 PM
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hi, i just want to thank everyone for their comments on the heater core replacement. i saved a lot of money!

i definitely encourage just about anyone else to do so. it was rather easy and took me about 1 hour along with $140 total. i got the part from fcpgroton.com. there was some neck craning and body twisting under there but once you get started you see precisely what you need to do.

my thoughts...
- drained the coolant from radiator under hood first. then flushed w distilled water.
- did not need the o-rings
- did have to remove both passenger and driver kick panels in order to better get up and under
- make sure you have a long, thin torx screwdriver to fit into the final torx screw at the bottom of the heater core. my adapter was too thick and wouldnt fit between the two plastic tube covers.
- i definitely had to force the heater core out and back up into its slot. just lots of wiggling, it has to be at an angle but nothing too bad. i would recommend applying some grease or vaseline to that rubber hose below heater core to make it easier.
- definitely lay down some garbage bags to catch excess coolant when you unscrew the core and ready to remove.


i think that's all i can add. i'm so relieved to get rid of that nuisance but now it's just begun as i've got to find a solution for the carpets. they are soaked and the noise-reduction foam is really bad. any help with this aspect is appreciated!
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topgun1050
post Dec 8 2010, 07:49 PM
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Volvamos---How random you commented on this 2 yr old thread and I was looking for answers on my evil, possessed fogged up car today!
I thought my car was just breaking down and needed more freon.

Thank you to everyone else!

I have a 1998 S70, which to me, I feel does not like me. I bought it certified used in 2003 but I have put about the same amount I bought it for. It is my second Volvo, my 1991 740 was a great one. My family and I have had Volvo's for over 30 yrs.

So maybe I can convince my dad to replace this heater core with me. Or I will have to pay lots of $$. I feel like an **** driving to work wiping off my windows while trying to not get into an accident!

Thanks again!
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volvamos
post Dec 9 2010, 11:19 AM
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hey there, i am more than happy to post b/c so many others have. it's helped me learn to do most maintenance on my 1998 s70, including this fix. the dealership told me $1000, while a good repair shop told me $800. there was no way in the world i was going to do that!

i almost didnt realize the post was so old...but when you're doing searches for something like "heater core replacement", the date doesnt really matter.

anyway to your volvo...do this repair job ASAP! trust me. there is probably no need to do any convincing.

i waited waaaaay to long and now i am very sorry. my carpets are soaked and even worse so is the insulation foam. it's a normal thing to have happen to your Volvo as you can see searching on all of the volvo forums. it's also a fun and relatively easy fix. even if you've never really done much maintenance on your car, i still recommend it. just study the photos here and then go after it! you just need to see it for yourself.

i think the hardest part is having the confidence to pull up the plastic trim and carpet, which is really no biggie. i'll check back here, if you need any further assistance.

in regards to your Volvo in general...i wouldnt get too frustrated about it. buying it certified is a good thing, i think you can rest easy knowing that it met their set of standards as a used car when you bought it. but our Volvos are now over 10 years old and there are just things that are simply going to go wrong.

i bought my volvo 2 years ago for quite cheap in a part of town where i had to use my spanish skills (not bad) to negotiate the deal. there were all sorts of issues with the car, but none of them were related to the engine. it had low miles and was in very good condition. it just had many "normal" volvo issues per this model; ABS Module goofiness, weak door actuators, dead trunk arms and hood latch, a near-dead and worn out ignition cylinder, very old battery and near-dead alternator. if you take care of your car it will love you back, unfortunately some of the other matter-of-time issues are going to happen after 10 years.
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CimpleSypher
post Dec 11 2010, 08:50 AM
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Hey Volvamos! (IMG:style_emoticons/default/smile.gif) Do U think this is doable on a 2000 V70?
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1st time Volvo C...
post Feb 15 2011, 12:43 PM
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Would this be the same for a 1999 Volvo C70? I am having some fogging windows and coolant smell as well and lack of heat in the vehicle and living in Wisconsin and having freezing temps and 2 feet of snow last week I am needing some kinda help here and do NOT want to take it to the dealer for $1000 +
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