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Discussion Starter · #1 ·
I know there ain't been no beasts in the car cause whenever it's parked, the windows and moon roof are always rolled up, even if only a minute.
But there is the smell of cat pee in the car that comes and goes.
Is it possible that it's a build up of pine needles over the intake vents at the windshield?
I clean off tons every day this time of year.
 

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I know there ain't been no beasts in the car cause whenever it's parked, the windows and moon roof are always rolled up, even if only a minute.
But there is the smell of cat pee in the car that comes and goes.
Is it possible that it's a build up of pine needles over the intake vents at the windshield?
I clean off tons every day this time of year.
Actually it could be a cat really did pee on your car. Have you smelled in front of the windshield?

Perhaps a good rinse with a heavy detergent down the drains and vents there could remedy it.

Pine needles won’t cause that odor themselves.
 

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Have you followed the recommended service intervals for replacing the cabin air filter?

Unpleasant odors from the air vents are a common complaint from all brands, but not usually when the cars are this young...


The pine needles could be the cause, if they are getting inside the system and blocking the condensation from the AC system from draining out of the car. When that drain gets blocked, moisture can build up inside, and if it sits there long enough a very unpleasant odor can start emanating from the system.

I don't know how common this is with S/V90's yet, but this happened with my S80. That said, not until it was like 8 years old and had 120k miles on it though.
 

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Discussion Starter · #5 ·
going for service in 2 weeks. I'll add it to the list. Though I'd hope at 9000 miles the cabin filter wouldn't need replacement, but this is not the Volvo of old.
 

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going for service in 2 weeks. I'll add it to the list. Though I'd hope at 9000 miles the cabin filter wouldn't need replacement, but this is not the Volvo of old.
If cat piss got in there you’ll want to replace it
 

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Do some deduction here.

Turn on the climate system but turn the a/c off. Does the air coming out of the vent smell like cat piss?
 

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You didn't say specifically, but does the vehicle sit out at night? My truck fell victim to a combination of leaf decay (when I didn't get them off in a reasonable time) and temporary mouse housing in some areas near the fresh air intake. The odors were not pleasant and perhaps could be similar to cat pee.
 

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Don’t forget to smell your mats. Both my BMW and this V90 has issues when moist gets around the rubber mats without properly drying. It often smells like it’s coming from the AC/vents but it’s not. Lift the mats and smell on the fabric underneath.
 

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Had the same issue on another vehicle. During the colder months cats would lay on the cowl at the base of the windshield to say warm and I guess for whole territorial thing kicked in and one pissed there. I used a combination of urine gone and detergent and it final cleared up after the third round of disassembly, clean, and reassembly. Also put some of the charcoal odor absorption bags on the car to absorb the odor.


2004 S60R M66 Flash Green/Atacama
2004 V70R M66 Mystic Silver/Gobi
1997 S90
2005 XC90 V8 Magic Blue/Taupe
2008 S80 3.2 Shimmer Gold/Sandstone


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I know there ain't been no beasts in the car cause whenever it's parked, the windows and moon roof are always rolled up, even if only a minute.
But there is the smell of cat pee in the car that comes and goes.
Is it possible that it's a build up of pine needles over the intake vents at the windshield?
I clean off tons every day this time of year.
I also have/had an intermittent ammonia smell through the vents at startup. I've only noticed it during the hottest months. I use auto climate exclusively and this car also sits out overnight. No feral cats which I've seen, but I suppose they could be around. No paw prints on the car which should be pretty easy to spot thru the dust.

Never brought it up at service since it's rare and seemingly random. Not much help, I know.
 

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Discussion Starter · #15 ·
ran the fan max'd w/o AC. No smell. Seems to have dissipated somewhat, but I don't think it was the charcoal.
The intake at the vent doesn't smell like anything in particular.
I think it's something organic rotting or heating up after humidity.

Tonite when I came home, the car was completely fogged up. None of the other cars in the lot were.
I wonder if there is a leak somewhere in the system, as it took like 10 minutes for the fog to dissipate. The rear window took even longer.
Something weird.
 

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ran the fan max'd w/o AC. No smell. Seems to have dissipated somewhat, but I don't think it was the charcoal.
The intake at the vent doesn't smell like anything in particular.
I think it's something organic rotting or heating up after humidity.

Tonite when I came home, the car was completely fogged up. None of the other cars in the lot were.
I wonder if there is a leak somewhere in the system, as it took like 10 minutes for the fog to dissipate. The rear window took even longer.
Something weird.
Probably from all that cat pee.....
 

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Discussion Starter · #17 ·
We just tripped to Maine and beyond in early Sept.
Youngs lobster in Belfast and more at a friends in Wells.

But now I'm wondering if I may be sleepwalking and peeing on the car .......
nah.
 

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Discussion Starter · #18 ·
dunno what this is, smells like pee, but the windshield vent doesn't smell like that, nor the carpets or vents without AC.
 

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Check coolant level, had slight heater core leak on old S80 that really smelled inside car and caused windows to fog badly when car was turned off.
Other thought is mold in ducting which is common and can get really smelly in AC mode ; this however does not lead to fogging.
Good spray products are available to spray into intake to clean out mold.
 
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