550 front hood corrosion

Make sure to towel it dry after washing or a wet run - it’s a water trap.

May be a more scientific way of doing it but this helps for a non-daily driver.

 

That's how I do it. I avoid spraying directly at the front of the hood facing the car. After drying the exterior I lift the hood and wipe off the underside then take my time wiping off the accessible areas of the engine. That should minimize water getting trapped in the hood's leading edge and enough time to move it out if a few drops got in there.

 

Aluminum, so it cannot rust. Can corrode, but probably not from water. Galvanic corrosion, possibly.

 

Doesn't moisture promote galvanic action by acting as electrolyte? If so then by eliminating the electrolyte one could substantially reduce galvanic corrosion.

 

Could be.

 

correct. it is a hard bubbling from the aluminum coming in contact with some other metals.

they all have some sort of it or will

 

got rid of the corrosion on the 550, had it under the lip if the hood and also against the rubber trim of the windscreen... it was like magic.

 

Curious how big of an issue this is. If you see this in one area of a vehicle, and it is fixed properly, how likely will it reappear in other areas of the car? Thanks.