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Hi everyone, I'm thinking about purchasing an used 2018 RX 350 F-sport 3 from the Lexus dealer. It passed the lexus certification / inspection. However, the car was in Toronto for 2 years before coming back to BC, and I noticed some rusting on the bottom of the car. I have attached a photo of the back/bottom of the car.
I don't know much about rusting issues... is this bad? If I bring it to a bodyshop to put an outer coating on it, would it be good enough? Would I have trouble selling it in the future because of an issue like this? Thanks for all your help!!
To me it looks like any car that resides in the very harsh winters in the north. Looks like surface rust. I think you will be fine. Its just the exhaust pipe and muffler.
If it were me i would have them change the muffler and the tail pipe conditional to buying the car.
Last edited by jimbosr1; Aug 16, 2021 at 01:39 PM.
The cause is the salt used on the Toronto roads for ice control. That brown rust spot on the middle bottom of the muffler would concern me -- mufflers tend to rust from the inside out, due to water condensing out of the exhaust on the inside, and that's right where it would sit. So that rust might be close to coming through. I concur with @jimbosr1's recommendation to ask the seller to replace the muffler and tailpipe.
Surface rust turns into rust through it's only a matter of time. How long? Don't know but that is a shocking amount of rust for 2 years I don't care what environment it's in. If you buy that (I wouldn't) give it the Fluid Film treatment or similar coating. Not rubberized undercoating that seals in rust and moisture making the problem worse.
Hi, I recently found rust formations on my under-chassis (MY2017). Is this normal for us living in the north with winter seasons (salt, road grimes, etc). Is this normal or should be of concern? If it is, do you guys know of how this could be cleaned/treated then rust-proofed to prevent corrosion? I have a shop here quoting C$1500 to treat/clean plus C$400 to apply undercoating after. Is this worth doing?
RX 350 rusting
