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New C8 owner. Does anyone know of any temporary covers that I can use during washing to keep water out of the engine bay?
FWIW, typical of new owner concern. It's a non issue. I do the same on my now 1 year old E-Ray as I did for 4 years in my 2020 C8- wash the same was as I did my two C7s, C6, two C4s! In fact my two C7's had a hood vent that opened over the engine!
Fact is you will find very little water gets in, same when raining. What does, most goes out the large drain openings in the front sides. What you will find is 2 to 3 oz AND they are needed!
The large rear fender scoops have lots of air entering to cool the engine compartment. With that air comes dirt and dust. Need to remove from the compartment
So after washing normally (not foolishly spraying water horizontally in the vents,) just was washing normally.
After I dry the car I open the hatch
Pick-up the 2 to 3 oz of water, most in the front with a corner of a large towel
Use that wet corner to remove dust/dirt from engine cover, flat surfaces etc.
Use the 90% dry towel to clean off remaining dust
Total 5 minutes.
PS: I drive my AWD E-Ray in the rain and do nothing! Engine compartment gets cleaned when I wash the car.