Water under floor mats (from puddles during rain?) - what do I need to wory about?

Asked by Jan 08, 2017 at 07:35 PM about the 2007 Lexus RX 350 FWD

Question type: Maintenance & Repair

Its been unusually rainy in my town for the past 3 weeks and I have been noticing a bad smell in my car, like dirty gym clothes, and today I finally figured out the source: there is water UNDER my floor mats.  I think maybe water got in the bottom of my car when I drove through a puddle and I think the rubber lining on the back of the floor mats keep the moisture trapped.  Today I took everything out of my car including all floor mats and used a bunch of bath towels, and then paper towels, to blot up all the moisture I could and then left it in the bright sun all day with all doors and hatch open to try to dry it all out.  My question is: Do I need to worry about any long term issues?  And is it possible the water is still in the car somewhere? like under the floor mats?  What would you smart people do in this situation?

6 Answers


Well you should look for and fix where the water is coming in. The concern would be that trapped water on the floor board will eventually rust out the floor pans. So the dryer it is the better. A fan directed on the wet spot will help a lot.

1 of 1 people found this helpful.

if you have a sunroof/moonroof the drains could be clogged old news papers soak up the moisture from the carpet and leave a neutral scent

1 of 1 people found this helpful.

Rowefast, thanks for your answer. I can definitely turn the heat up high with high fan to dry out the wet spots. I'm not sure how to check where the water is coming in. I need a tune up anyway so I guess I can ask the mechanic to look for the source of entry. Thanks.

Karmon, thanks for your answer. I will ask my mechanic to check the sunroof drains to see if they may be clogged. thanks for your help.


We are glad to help...

Also under the car are rubber grommets that if you remove them, a ton of water can be drained. With a wet/dry vac. My wife thought her rx350 was a bass boat and could go through deep water. I dont know if the water came in through doors or it made its way through grommets, but all 3 spots had water. I pulled the plugs and got a whole bunch more water then just trying to vacuum from top. Just be careful to put plugs back in correctly.

Your Answer

RX 350

Looking for a Used RX 350 in your area?

CarGurus has 20,243 nationwide RX 350 listings starting at $3,900.


Lexus RX 350 Experts

  • #1
  • #2
    Nico Vlachos
  • #3
View All

Related Models For Sale

Used Acura MDX
485 Great Deals out of 16,130 listings starting at $2,000
Used Toyota Highlander
599 Great Deals out of 36,226 listings starting at $2,500
Used Lexus ES 350
340 Great Deals out of 11,066 listings starting at $4,440
Used Lexus RX 330
50 Great Deals out of 1,377 listings starting at $3,900
Used BMW X5
337 Great Deals out of 15,594 listings starting at $2,400
Used Toyota RAV4
827 Great Deals out of 51,669 listings starting at $1,600
Used Lexus GS 350
155 Great Deals out of 3,504 listings starting at $5,800
Used Acura RDX
253 Great Deals out of 11,654 listings starting at $4,495
Used Honda CR-V
879 Great Deals out of 58,794 listings starting at $995
Used Toyota 4Runner
348 Great Deals out of 26,254 listings starting at $1,800
Used Toyota Camry
1,098 Great Deals out of 86,333 listings starting at $800

Used Cars For Sale

2017 Lexus RX 350 FWD For Sale
221 listings starting at $36,999
2016 Lexus RX 350 FWD For Sale
12 Great Deals out of 214 listings starting at $34,995
2015 Lexus RX 350 FWD For Sale
109 Great Deals out of 1,335 listings starting at $21,435
2014 Lexus RX 350 FWD For Sale
24 Great Deals out of 275 listings starting at $19,991
2013 Lexus RX 350 FWD For Sale
20 Great Deals out of 320 listings starting at $16,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.