Question about Volvo S70

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My heater when turn on smells antifreeze and smokes through the cabin, also it easy to fixed and where is the core located for 1998 s70 volvo, I also got a message when the engine light came on had it check engine ligt code and it came up p0455

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You need a new heat core , it is located under the passenger side dash , you could try some silver seal before you replace it

Posted on May 11, 2009

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Posted on Jan 02, 2017

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2 Answers

98Volvo s70 heater core just replaced and now it smells like oil and there is an oily film on the inside of the windshield. Why?


That sounds like a fault in the cylinder head gasket. Check your oil for water, it makes the underside of the filler look like grey mayonnaise. Check the coolant for oil. And then you have a leak in the pipes to the heater core or the core itself.

Or is may be that when the heater core leaked, the coolant fell on oil or grease and it is drying out?

Jan 17, 2017 | 1998 Volvo S70

1 Answer

Volvo s70, 1998, heater not blowing hot air


Are you getting coolant flow through the heater core? These cars have common problems with heater cores but they are easy to replace. IPD has a Video on U-Tube with step by step instructions. Also if you are in very cold weather have you checked your anti-freeze? I saw a Toyota last year freeze completely because of no anti-freeze. It took days to thaw out the heater core and they were lucky that the ice did not blow it apart. It took me hours of starting it and running up to a low temp and shutting it down to get it drivable.

Nov 18, 2012 | 1998 Volvo S70

1 Answer

I have a 95 bmw740il 8cly. every time i turn the heat on i always get a mist coming out of the air vents,also a smell of antifreeze is my heater core gone bad or do i have a leak ?


hi sounds like you have a leaking heater core if you can smell antifreeze that sickly sweet smell is a give away its also worth checking your cabin filters arent blocked with leaves or debris ,if its not blocked cabin filters and you cant afford to replace the heater core a good fix is to use a cooling system sealer like "k" seal which is often seen as a temporary repair but quite honestly does a good job of fixing small leaks good luck

Dec 01, 2010 | 1996 BMW 7 Series

1 Answer

My volvo s70 is having smoke come in through the air vents and it has a funny smell


If it smells sweet it is coolant and this is a sure sign your heater core is leaking. The only fix is to replace it.

Oct 21, 2009 | 1998 Volvo S70

1 Answer

On my 1998 volvo s70 the floor is wet with coolant on the drivers side and when using the a/c you can smell freon and you can see a white fog coming through the vents


Your Heater Core is Bad= Coolant on Pass Floor
If A/C Does NOT blow Cold anymore the Evaperator Core is Leaking
First time I have seen them BOTH go Bad in 30 rs of Bein A Mech/Tech

May 31, 2009 | 1998 Volvo S70

2 Answers

Where is the heater core located on the s70 volvo, it smelling when turn on and smokes blows through the cabin


we had to replace mine in my car. Here is a link to a website that shows pics on how to repair it. Hope this helps.

http://volvospeed.com/vs_forum/index.php/topic/9717-pics-of-heater-core-install/

May 11, 2009 | 2000 Volvo S70

2 Answers

Replace Heater Core for Volvo S70 (1999)


It is your heater core. I fixed mine for $144. Ordered the new part on Ebay and followed these instructions http://www.volvospeed.com/vs_forum/index.php?showtopic=9717 It was very simple, I'm a middle age grandmother! The hardest part was cleaning up all the antifreeze. You will need a shopvac, a small one is $20 at WalMart.

Jan 12, 2009 | 1999 Volvo S70

1 Answer

1998 volvo s70 heater smells strange and smoke fills the cabin


Your heater core is leaking. The smell and smoke is from the coolant evaporation.

Oct 17, 2008 | 1998 Volvo S70

2 Answers

Car Heater smells strange


from he Popular Mechanics site if the smell in your car is like maple syrup:


(1) SMELLS LIKE: MAPLE SYRUP
WHEN: After the engine has warmed or possibly even after it's shut off for a few minutes.
THE CULPRIT: Coolant containing sweet-smelling (but toxic) ethylene glycol is leaking from somewhere. It could be coming from a radiator or heater hose, a failed intake manifold gasket or cylinder head. It might be coming from a leaky radiator cap or the radiator itself, especially if you smell it outside the car. A strong odor inside the passenger compartment probably means a bad heater core.

Oct 02, 2008 | 1998 Volvo S70

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