About three weeks ago I purchased a brand new 2017 MDX with tech. Yesterday when I was cleaning it, I found out that the front suspension are both rusted.

I live in Pennsylvania and I texted my sales, he said that it's fine due tot the weather.

Are those happened normally or just like other said sth like "paint" by Acura？

 

A little difficult to understand what you mean. Can you post a picture? My 2017 does not seem to have any rust whatsoever.

 

 

btw, I heard this happens usually on moist weather, but I'm going to the dealer to check it out tmr !

 

Ah. That is surface rust, but if the part had been sprayed with corroision stop, it never would have happened.

 

allright, I appreciate that.

 

I just inspected mine...same thing. I'm sure that structurally it will be ok, but the part really should be coated. I covered my with corrosion stop that I use on my boat trailer (salt water use).

After a winter in your conditions (salted roads), I expect that part will look much worse.

 

lol, I agree a lot. But ZF 9-automatic transmission annoyed me a lot. BTW,what's ur ex and interior？ Mine is black copper and espresso, this combination is so hard to find that less than 10 models around the States last month.

 

[QUOTE=Patrick Chenhz;15873144]lol, I agree a lot. But ZF 9-automatic transmission annoyed me a lot. BTW,what's ur ex and interior？ Mine is black copper and espresso, this combination is so hard to find that less than 10 models around the States last month.[/QUOTE



'17 SH AWD. Espresso interior.

 

[QUOTE=vicbastige;15873162]amazing

 

That is normal. I asked the same question of my dealer/service rep and acura customer service. Answer Acura stopped coating that part after 2002 . Checked my 2002 Tl and sure enough it is coated/painted black.Not happy with it but what are you going to do ?

 

i just checked my 17'. No rust at all. Clean. I definately wouldnt be happy with that. I got mine in August if this helps anyone.

 

When you get your car undercoated, they NEVER spray the suspension or brake components. As the owner of the vehicle, you are free to remove each and every suspension/brake part and coat them. You'll have to meticulously sand them to remove all rust, prior to coating. The sooner you do it, the better. The deeper the rust penetrates, the harder it is to remove. These parts are made of cast iron, like the majority of cars out there. Not coating them is a cost savings approach.

Acura doesn't worry about this, as 98% of Acura owners likely never look underneath the car. It doesn't hurt reliability or performance. It's simply an esthetic thing that generally goes ignored.

As for reliability and longevity... my 10 year old TL looks horrendous from the underside. The suspension arms and brake bits are incredibly rusted... but I drive my car HARD. Never had even the slightest issue. While it looks ugly, it's no big deal. Completely normal for most makes and models out there. Even my friend's 2007 s2000, with only about 20k miles on it, that has never seen snow and very rarely ever seen rain looks like that.

 

wow, lucky you. BTW, where do you from ? Warm place like FL or like me from PA ？

 

thx 4 ur reply. I made the oppointment on Friday. Hope they R gonna fix this.

 

Dude, did you not just read what I wrote?

I hope you enjoy being laughed at, all the way out of the dealership.

 

That is an unusual amount of rust. The picture isn't very clear, but it appears to be the knuckle assembly.
After the redesign of the MDX suspension, the knuckle has commonly known to show heavy surface rust, even brand new.
What I would do is sand as much of it off as possible with a wire brush and fine grit sandpaper.
Make sure the surface is clean and dry, protect all the components with painter's tape and painting sheets / newspaper.
I would then hit it with a rust protectant primer / enamel paint, at least 4 even coats, dry before next coat.
I think Krylon / Rustoleum have some products that would work, check reviews for the best application

 

I appreciate that. I made the appointment on Friday with dealer.

 

Here are some other pics that show the heavy surface rust on the knuckle, it's common and the dealership will say the same.
It's not a safety issue, but it's definitely not pretty. As Taco mentioned, they're cast iron. Very strong, but rusty trombone.

 

I guess that is exactly what my part looks like. Anyway, I hope dealership can do sth for it.

 

Surface rust. Trivial on parts like those, until of course you try to do something like a replacement of parts and you find that the bolts and crap are seized on by the rust (the hardware is going to rust soon too). Honda stopped coating back in the early 2000s. If you plan to keep the vehicle long term and are in a salty state (meaning they use salt to melt snow), then just watch it later in life for damage. But, that's usually more of an issue for things like control arms and such. The knuckle is pretty beefy.

If you look in your interior, you will notice you seat rails are also not coated, but in these case these are mild steel. Those may get more annoying with age, depending on how rust sets in.

 

keep us updated OP

 

Just more "cost cutting" measures..... They use to spray the top of the line Honda/Acura models muffler tanks with a nice flat black paint thus you could tell the basic model vs. the EX model....Now all come un-painted....just more cheap cutting cost measures...

 

^ I agree with this assessment.. saves them maybe a buck or two..
Some asshole probably got a pat on the back and tug in the hot tub for this decision

 

I painted mine on my 07 MDX Sport as I hated the bare LOOK of metal...it looked CHEAP.....so I got some high temp flat black spray paint.... made it look the way it should have from the factory...Note my 04 RL suspension part "coated with black paint" the way it should be......

 

nicely done!

 

hmmmm what brand of corrosion stop do yo use.. would it make sense to sand it down to clean it up.. wonder how long it'll take to make it look nice

https://www.amazon.com/Blaster-16-CS...corrosion+stop ?

 

You didn't read through this thread at all, did you?

 

If it's truly problematic to you, a can of primer or spray paint will do the same thing for potentially cheaper. tear it down, tape off bushings, spray a couple coats, put it back on and be done with it

 

Most rattle-can paints will eventually bubble up unless you get every last bit of rust off first. If it were me, I'd use POR-15. Wire brush any loose rust off, then paint right over the surface rust with the POR-15, using a small brush. It will dry without showing any brush marks.... and actually adheres better if there is a little surface rust. Looks nice and shiny black when done. And, it will NEVER come off. That stuff is permanent. If you get any on your skin.... you have to wear it off... no solvent will touch it. It's expensive, but goes a long way. I did the entire frame of my 1950 Mercury street rod with less than two quarts. It comes in really little cans as well as quarts,... maybe 10 ounces.

Rust Preventive Coating