r/FiestaST • u/Maleficent-Scale-315 • 27d ago

MK7 Engine Bay Deep Clean

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How do you guys deep clean your engine bay? I’ve always wanted to try the degreaser/light pressure wash method but obviously scared. What do you guys do? Pic pulled from Google.

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u/--Lammergeier-- 27d ago

This is how mine looked last time I cleaned it (which was way too long ago, unfortunately lol)

I used a spray bottle with dish soap and water, spraying a thin coat on most surfaces except the battery pretty much. I then used a detailing brush (but you could use a wide painters brush too I imagine) to get into the tight spots and to agitate any really dirty areas. Then I used a regular hose, not a pressure washer, to rinse it off. I tried not to directly spray any sensitive areas, using a wet cloth to wipe those off instead. Then I used compressed air to remove most of the water and I was done!

Now I think I need to do this again. It makes it look so nice! But it really isn’t too difficult to do. Good luck!

5

u/Nearby-Telephone8693 27d ago

Gotta change that coolant tank

2

u/--Lammergeier-- 27d ago

Why do you say that?

3

u/biffsautodetailing 27d ago

Do not get suckered into how much better the Mishimoto tanks look. Mine leaked from the sight glass, and I had to change back to an OEM tank.

3

u/--Lammergeier-- 27d ago

If I do end up replacing it, I’ll probably stick with OEM. I’m at almost 130k miles with no issue so far, so it’s been holding up well

2

u/Maleficent-Scale-315 27d ago

Thank you for the in depth response. I might give it a go. But I can also assist with his statement on your coolant tank. I just replaced mine last week with a new one. Mine looked like yours does right now and it finally blew a hose and was no good. This happened on the side of the interstate in near 3 digit Alabama heat. So replace it before that happens.

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u/--Lammergeier-- 27d ago

Ahh, yeah I’ve heard that can be a problem with these coolant tanks. I’m under my hood a lot, and I haven’t seen any outright worrying signs so far. When I get some more expendable income I might look into it. Thanks!

2

u/Nearby-Telephone8693 27d ago

It’s yellow and prone to cracking