Need help with this!!!
Anyone have any idea why? The car was totally cleaned and dried before winter. After this winter, I suddenly saw this big salt right under my driver's seat. No one was sitting behind the driver's seat during the whole time and I have great four foot mats. This salt just came from nowhere and I can't figure out why.
Any possibilities is because of the air van(long small part of salt in the pic)?
I have asked dearship and they got no idea at all....
Anyone have any idea why? The car was totally cleaned and dried before winter. After this winter, I suddenly saw this big salt right under my driver's seat. No one was sitting behind the driver's seat during the whole time and I have great four foot mats. This salt just came from nowhere and I can't figure out why.
Any possibilities is because of the air van(long small part of salt in the pic)?
I have asked dearship and they got no idea at all....
Thanks for your idea...
I still can't understand. I have checked that the air vent part is totally separates with the front footwell, which means the salt/salty water can't come from the driver's. And like I said, there was no one sitting behind the driver's seat for the whole winter at all....
I just can't figure out one reasonable cause... I mean, it looks so terrible and I am worrying about next winter already




I tried, but the salt area is too big and very hard to get rid of. I have tried half vinegar and half water sprayer, it wasn't very useful for such heavy duty.
Dealership and detail shop suggested me to do steam cleaning, which basically is using hot water. I don't have any equipment and worry about the salt rust if I do it wrong. I maybe will hand over to a detail shop later.
I love my C350 and just don't know why this happened... heart break

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Dealership and detail shop suggested me to do steam cleaning, which basically is using hot water. I don't have any equipment and worry about the salt rust if I do it wrong. I maybe will hand over to a detail shop later.
I love my C350 and just don't know why this happened... heart break


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Where do you live ? Just to make sure I never spend a winter there.
Is it a kind of mould? If so a dry mould repellent is the go. Then vacuum it out.
If it is salt you may be able to dry vacuum it out by robustly rubbing with a stiff nozzle .
If all else fails why not visit a carpet cleaner firm to see whether they can dissolve it with minimum hot water then suck out all the residue.
The practical & valuable house keepers of the forum should be able to help out with advice.

hire a carpet steam cleaner, get that stuff cleaned up and out of your carpets asap. Maybe invest in a set of Weathertech mats for next season.
Where do you live ? Just to make sure I never spend a winter there.
Is it a kind of mould? If so a dry mould repellent is the go. Then vacuum it out.
If it is salt you may be able to dry vacuum it out by robustly rubbing with a stiff nozzle .
If all else fails why not visit a carpet cleaner firm to see whether they can dissolve it with minimum hot water then suck out all the residue.
The practical & valuable house keepers of the forum should be able to help out with advice.
I don't think it's mould, before winter, it was all good. At least it still felt salt to me when I touched it.
Steam clean will be the next move for me, I guess.
Just pray won't see this agin next winter..... Thank you

I thought the same way. Actually, any suggestions on good and nice mats for my car? 2010 MB C350 4Matic
Appreciate it!
I still can't understand. I have checked that the air vent part is totally separates with the front footwell, which means the salt/salty water can't come from the driver's. And like I said, there was no one sitting behind the driver's seat for the whole winter at all....
I just can't figure out one reasonable cause... I mean, it looks so terrible and I am worrying about next winter already





Count on it happening again next winter though, unfortunately. I live in Ontario too, and the city I live in seems to dump more salt on the roads than necessary all winter. This is the aftermath of this past winter on my non-rubber floor mat. Lovely. Black carpet doesn't help
If you haven't already, I highly recommend finding either some weathertech floor mats, or the OEM rubber ones.
I will let you know how that goes! My appointment is on Sat and they promise no salt will see until next winter come.
Maybe detail shop will have some theories about that....
Count on it happening again next winter though, unfortunately. I live in Ontario too, and the city I live in seems to dump more salt on the roads than necessary all winter. This is the aftermath of this past winter on my non-rubber floor mat. Lovely. Black carpet doesn't help
If you haven't already, I highly recommend finding either some weathertech floor mats, or the OEM rubber ones.
The foot mats I am using now is this:
They are nice and fancy, but apparently it is not useful for the winter... salt stains are everywhere
The foot mats I am using now is this: 3D Maxpider L1MB00901509 MERCEDES-BENZ C-CLASS - W204 - 2008-2011 Black KAGU - TPR - Molded Floor Mats: Amazon.ca: Automotive
They are nice and fancy, but apparently it is not useful for the winter... salt stains are everywhere
Personally wanna DIY, you need a how water sprayer and vacuum it, finally using tower to scrub the rest salt and vacuum. It is painful to do such a heavy duty like my carpet. But it is useful if the salt stain is not this big and stubborn.


