BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wash, Wax, Detailing and Cosmetic protection/repairs > Automatic car wash question

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      02-04-2006, 09:38 PM   #1
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Drives: 2006 330xi, Barrique red
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Question Automatic car wash question

There's a great touchless car wash that just opened near me.

Nothing touches the car except high pressure water.

My question is about the value of those added extras, like "Blue Coral wax", "Clear coat protector", "Undercarriage", etc.

I generally just go for the straight wash and dry.

I've heard that some extra's (Like the extra polish or wax) can cause issues with windshields and mirrors, where you don't usually apply polish or wax.

Are those extra things worth it, or should they be avoided?
2006 330xi Barrique red, manual transmission
Delivered February 3, 2006
Beige w/Dakota Leather Upholstery
Poplar Natural Wood Trim
Premium package
Cold Weather Package
Comfort Access
Active Cruise Control
Park Distance Control
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      02-05-2006, 12:03 AM   #2
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Drives: 2014 M235i
Join Date: Sep 2005
Location: Sugar Land TX

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I wouldn't go near anything that combines a "wax" and an automatic car wash.. If you put a good layer of a top sealant on before the winter, you should never need to add a "wax" to the car. I put three coats of Zanio on the car in October as soon as I got it, and water still is beading like crazy almost 4 months latter.

If the "undercarriage" you talk about is just a wash... that's not a bad idea in the winter with all of the salt around... if is some "undercarriage sealant" that's not going to be worth it...
E46 325xi Oxford Green/Sand Leatherette/Myrtle Wood Auto ZCW - Retired
E90 330xi Mystic Blue/Black Leather/Aluminum 6sp Manual ZSP/ZPP/ZCW/CA - Retired
F22 M235i Mineral Gray/Red Leather/Aluminum 6sp Manual ZPP/ZTP
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