I have noticed that whenever I run the heater in my car, it depletes the coolant. I have looked a few times now and noticed the reservoir almost empty. No light comes on in the car to notify my of this and the car gauge never shows it overheating. I have looked for a leak and found nothing.
Anyone have any thoughts on this? I checked the oil and it looks fine as well. So, I do not think it is leaking into the system. Frustrated!
S40 2007 coolant disappearing
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xb corp
- Posts: 131
- Joined: 19 October 2009
- Year and Model: 855GT5 '96
- Location: Johor Bahru, Malaysia
do you have wet carpet? check your driver side/ passenger side carpet.
you might have blown the connecting hose between the in-dash heater core and the pipes (engine bay). the coolant leaked and fills your floor pan.
you might have blown the connecting hose between the in-dash heater core and the pipes (engine bay). the coolant leaked and fills your floor pan.
'96 855GT5 324hp 386lb-ft
Nissan 16V turbo, HKS w/g, SS 2.5" d/p+FGK 3" exh, HKS Evo9 FMIC+2.5" piping, K&N, Apexi BOV, NA cams & t/b, portd head, 5 sub-injctrs, Mocal coolers, AMG 4pot 325mm, AVS 18", Bilstein B6/Vogtland
Nissan 16V turbo, HKS w/g, SS 2.5" d/p+FGK 3" exh, HKS Evo9 FMIC+2.5" piping, K&N, Apexi BOV, NA cams & t/b, portd head, 5 sub-injctrs, Mocal coolers, AMG 4pot 325mm, AVS 18", Bilstein B6/Vogtland
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jblackburn
- MVS Moderator
- Posts: 14043
- Joined: 8 June 2008
- Year and Model: 1998 S70 T5
- Location: Alexandria, VA
- Has thanked: 9 times
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I had a small leak in my lower radiator hose that was dripping into the splash guard under the bumper, and the low coolant light would come on every 2 weeks or so. I couldn't figure out where it was going either - it would only leak under pressure, and then blow out as it was driving down the road, so it wouldn't drip out. I finally noticed it when I left the car idling for a few minutes while I went back inside to grab something. Something to check for at least. You can easily pressure-test the cooling system and look for leaks if you don't notice anything leaking.
'98 S70 T5
2016 Chevy Cruze Premier
A learning experience is one of those things that says, "You know that thing you just did? Don't do that."
mercuic: Long live the tractor motor!
2016 Chevy Cruze Premier
A learning experience is one of those things that says, "You know that thing you just did? Don't do that."
mercuic: Long live the tractor motor!
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Joe Hurless
- Posts: 55
- Joined: 17 February 2010
- Year and Model: e36 328is
- Location: Boise, ID
If you would, fill up your coolant and go drive the car until it is warmed up. Then leave it running in your garage or driveway for a few minutes to let some ground drippage form. Without pictures the location of the drip is really the only proper way to diagnose the leak.
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JDS60R
- MVS Moderator
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- Year and Model: 2007 S60R 2016 XC70
- Location: Mount Juliet, TN
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Most 07's are still under warranty so car should be at Volvo.
If not, drive car directly to Volvo dealer or radiator shop and have diagnosed. It is either something easy or something major.
Either way you will get it fixed. In Miami you will need all the cooling system has to offer.
Do not wait on this repair. With any leak you loose the pressure the closed system provides and in this case that means the cooling system looses over 60 degrees of temp control before boiling.
If it boils over you can damage the engine.
If not, drive car directly to Volvo dealer or radiator shop and have diagnosed. It is either something easy or something major.
Either way you will get it fixed. In Miami you will need all the cooling system has to offer.
Do not wait on this repair. With any leak you loose the pressure the closed system provides and in this case that means the cooling system looses over 60 degrees of temp control before boiling.
If it boils over you can damage the engine.
Retired
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