Gen3 - Rust already...?

[Cyclic]

So I was browsing the other Mazda3 forums and came across a thread about rust found between the trunk liner and the rear window. Looks like there are quite a few people who are having the same problems so I went outside to take a look at my car and there it is... rust forming on my 8 months old car... Seems to be an issue for the sedans only. I'd recommend Gen3 owners go and check their cars. I already called the dealer and bringing it in later in the afternoon. Took some quick pics at work but the quality isn't the best as it was sunny out and couldn't tell if they were good or not until I went back in.

[jwoods_24]

Mazda at it again.. Sorry to hear, hope it gets sorted..

[thirdgen3]

I had rust showing up on mine too...different spot though. Mine were on the spot welds near the license plate lights. I noticed them when I had the trunk open one day. Took it into the dealer and they applied some paint over it to "seal" it and told me to keep an eye on it....

I'll upload pictures later tonight. Anyone else have this issue?

[drazen]

I just found some on the same spot, @Cyclic. But mine is a gen 2.

[Cyclic]

Yeah, the rust is appearing at the welds. Just got back from the shop now. They took pictures and will send it to Mazda. They told me it will take a week to hear back from them.

[20143GTowner]

not the license plate lights, but I just opened my trunk and found little circles of rust between the trunk liner and rear window just like @Cyclic . Really not to happy about it tbh. Going to have a talk with the guys up front as soon as I can.

[Canadianbacon]

Wow 3rd gen rusting already not good. Mazda didn't change

[Cyclic]

Updated first post with better pics. No signs of it at the welds near my license plate lights either. Good ole Mazda. In Rust We Trust...

[20143GTowner]

correction, I do have rust above my license plate, kinda smack in the middle beneath the lights.

SOB

[tcnumba10]

wow this is unbelievable, I just bought my 2015 Mazda 3 last month... there's no way to prevent this from happening? I wonder what the dealership will do about this

[20143GTowner]

heres some photos:





and I also found some in the engine bay, below my cold air intake:

[tcnumba10]

Just wondering if all these cars that have rusting are the GT models and were they made/imported from Japan?

[20143GTowner]

Just wondering if all these cars that have rusting are the GT models and were they made/imported from Japan?

so far its looking like the cars from Japan are the ones with the issues. Iv checked a couple GS and GX models from Mexico and there was no signs of rust anywhere

[tcnumba10]

so far its looking like the cars from Japan are the ones with the issues. Iv checked a couple GS and GX models from Mexico and there was no signs of rust anywhere

Wow.. just our luck eh? You would have thought the ones from Japan wouldn't have the issue...

[devoncsmith16]

Rust proof your car ever year it does wonders

[tcnumba10]

Rust proof your car ever year it does wonders

Krowning it?

[Cyclic]

wow this is unbelievable, I just bought my 2015 Mazda 3 last month... there's no way to prevent this from happening? I wonder what the dealership will do about this

I guess the only way would be to keep it parked in garage and dry it off after every rain fall lol

Just wondering if all these cars that have rusting are the GT models and were they made/imported from Japan?

Mine's a GT from Japan but I don't think there's relevance here. Doesn't Japan also have cold winters with snow? My car was not driven at all this whole winter but parked outside. 7800km after 8 months. @20143GTowner man you're in worse shape than I am but I haven't looked in the engine bay yet. We'll see what Mazda has to say... Maybe I made the wrong choice over the BRZ/WRX lol

[devoncsmith16]

Krowning it?

Yes but I prefer rust proof it creeps really good and u can get it pretty much in any area that u need

[Cyclic]

Rust proof your car ever year it does wonders

My car was rust proofed a month after getting it with Corrosion Free so that's probably why I don't see rust anywhere else. Not like they are gonna spray it onto your paint to prevent what's happening here...

[tweak_s]

Seconded on whoever said rust proof, it does help.

But holy moly, that is SOON. I didn't have it on my gen 1 until about 3 years later.

I really hoped Mazda had changed.

[devoncsmith16]

Seconded on whoever said rust proof, it does help.

But holy moly, that is SOON. I didn't have it on my gen 1 until about 3 years later.

I really hoped Mazda had changed.

Yes I agree that actually sucks I'd be so mad this should not happpen my buddy just bought the same car as yours I'm going to have to warn him

[natspriceless]

Rust proof your car ever year it does wonders

@devoncsmith16 I agree but these cars aren't even a year old yet...that's the bigger issue!

[devoncsmith16]

@devoncsmith16 I agree but these cars aren't even a year old yet...that's the bigger issue!

Yes I agree with you also

[tcnumba10]

Could it be rail dust? But I'm not an expert at the rusting area.

[miako]

Those looks like rail dust. clay it and apply some polish on it, work it in with microfiber towel.. it will probably come right out. I get shit tons of these yellow dots on my car after every winter. My detailer friend does it for me every year.