New 2019 Enclave with rusty stuff - Buick Enclave Online Community
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post #1 of 5 (permalink) Old 05-19-2019, 04:11 PM Thread Starter
Join Date: May 2019
Posts: 1
Unhappy New 2019 Enclave with rusty stuff

Attached please find pictures of my new 2019 enclave.
I bought this car last Tuesday (May 14th) and just noticed my car already looks rusty.

Is this normal?
Has anyone noticed the same thing on new 2019 enclaves?
Attached Images
File Type: jpeg IMG_7719.JPEG (1.11 MB, 20 views)
File Type: jpeg IMG_7718.JPEG (1.22 MB, 20 views)
File Type: jpeg IMG_7717.JPEG (1.14 MB, 17 views)

Last edited by esrevart; 05-19-2019 at 04:17 PM.
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post #2 of 5 (permalink) Old 05-19-2019, 06:33 PM
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I think it's really minor rust and wouldn't worry about it.

2009 Enclave CX Gold Mist FWD, Bose stereo, Driver confidence pkg.
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post #3 of 5 (permalink) Old 05-20-2019, 10:19 AM
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Looks like just minor surface rust/discoloration which is normal for some of the brand new metal areas.

2019 Avenir AWD
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post #4 of 5 (permalink) Old 05-20-2019, 04:04 PM
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2010 FWD LT1-Gold Mist Metallic- seats 8
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post #5 of 5 (permalink) Old 05-24-2019, 07:46 AM
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Unfortunately normal. The particular issue you see involves the factory weld spots of the exhaust piping. The exhaust pipes are made of a mix of alloys that do a nice job resisting corrosion (stainless steel being part of the composition). What you see at the welded connections happens when the welding material used isn't identical to the exhaust pipe material, or the flux used during the welding process didn't protect the molten weld from oxygen well enough to maintain alloy uniformity. You see this phenomenon often when corrosion-resistant materials are welded. While normal, it will be a location of both internal and external corrosion acceleration relative to the rest of the exhaust pipe, and is possible to prevent. That doesn't mean this will be the first spots of failure though. Likely where gasketed joints in the exhaust piping are used, those joint flanges will be made of mild steel. Those are usually the first to fail. Plus places where water settles (if not driven long enough to flash off condensation) will cause failure (such as in the bottom of the mufflers and resonators).

Probably a little too much here, but I'm not aware of any vehicle manufacturer that does a decent job with welded exhaust piping joints.
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