I'm sure there are vehicle owners out there like me whose garages are not totally mouse proof & suffer stinky cabins & other associated problems from it .
I noticed mouse poop (yes , I know what it is) smell in my 06 coupe a while ago which only got worse as I tried to ignore it .
While I didn't find it's source right off , I tried this stuff & it actually worked by putting under the drivers seat !

https://www.lowes.com/pd/Gonzo-Natur...cc26be29550d24

The cabin in the coupe is pretty tight (sealed off) from critters so the only mouse stink access must be the air intakes on the fuel injection --- YUP !
The pass side intake had evidence of mouse trailings so I removed both filters , cleaned all mouse residue w/ soap & water , blew out what little was in one filter & all is smellin good !!
9/15 UPDATE
Figured this effort wouldn't be complete w/ checking the cabin filter & fan cavity -- A HA ! many mouse trailings , leaf parts , etc . Cleaned it out & ordered a filter . Fan operation was not compromised .
Also taped 3 dryer sheets to the inside of the main panel w/o covering the fan exhaust holes knowing the critters don't like smelly dryer sheets .

 

Mice can get into the cabin via the air pressure balancing valves, one in each fender in the trunk, they are just fingers of rubber in a frame.
If they felt like it they could chew through rubber seals around wires etc.
One solution is to lock a cat in the garage with a car door open, just make sure the cat does not have access to the car key. Used cat litter in a few spots around the garage works as well.

 

Thanks 80
Smelly dryer sheets help in the cabin , under the hood & vehicle , etc .. One stink for another
I go thru lots of mouse poison every year also but not placed in a vehicle , however they seem to choose to RIP there !

 

One thing I heard is mice/rats like to be within 10-20 feet from a food source in regards to their nest. Make sure your vehicle is as far away from potential food sources as you can, such as a dumpster or trash cans.

There are some organic (non-toxic) types sprays that apparently they don't like either, you can spray your parking area down prior to parking there, do it every few weeks or so.

 

Just thought i would post this to help out. Not sure if anyone else has done this but here it is. remove the cowling at base of windshield and install this screen. at the same time you can check and clean the drains. there are four of them in total. before and after pics. Drilled a pilot hole and used real short screws and washers. This will prevent the rodants from entering in the most common area that they can get to. being that i live in upsate NY and in the country I have done this to all my vehicles and it works.

 

Good idea, hope you have not trapped any in the car.

 

I agree, time will tell for sure.

 

When I got my car home from Florida I found a nest on top of the engine and seeds stored in the engine cover. I never found any illegal aliens though, maybe they bailed as the temperature dropped and fortunately I found no damage.

 

Did you trailer the car ? If not, I'm sure they bailed out of the 200 F motor before you even reached the Florida state line.

 

Thanks Twanger, I'll try that is several locations....car and house.