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Thread: Cleaning the engine bay?

  1. #1
    Resident barbarian ColoradoDriver's Avatar
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    2014 CX-5 Touring AWD

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    Cleaning the engine bay?

    I have never cleaned my engine bay and it is extremely dusty and dirty.

    What is the recommended way to clean it? Considering wires and other parts, it seemed like a bad idea to me to use the pressure washer, but wasn't sure.

    Thanks all.

  2. #2
    Registered Member

    2016 CX5 Touring AWD

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    The dust and dirt are not going to hurt anything. Leave it alone.
    If it really bothers you take a damp rag and wipe any dirt and/or grease away.

  3. #3
    1 OWNR MSP BOOSTR's Avatar


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    Pressure washing won't hurt a thing. Use a 200 mph leaf blower to dry it afterwards. I usually just spray the cool engine down with a water/dish soap mix and then scrub some areas with a wheel cleaning brush or other type brush and rinse it off then dry. I've also used a can a scrubbing bubbles a few times as well, which I read about on a BMW website. My pressure washer is 1700 psi. If you use a much stronger one just go with the white tip nozzle that is for cleaning screens. Your only trying to clean & rinse versus degrease a gross engine block and bay.

    I'm sure you'll get what I call nervous ninny's telling you not to use a pressure washer but I've never had a problem cleaning engines this way and neither have a lot of others with clean engine bays. In the old days on vehicles with distributor caps with bad or no seal, water could get in and cause a no start until you removed it and dried it out.

    And sure you could use a damp rag and wipe away but that is nowhere near as effective. Choice is yours.

  4. #4
    Registered Member SBMongoos's Avatar

    2016.5 Mazda CX-5 GT AWD w/Tech

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    Quote Originally Posted by ColoradoDriver View Post
    I have never cleaned my engine bay and it is extremely dusty and dirty.

    What is the recommended way to clean it? Considering wires and other parts, it seemed like a bad idea to me to use the pressure washer, but wasn't sure.

    Thanks all.
    Local car wash. I've done it a couple times on my CX-5. Take it out for a little drive after to be sure the water is dried up/gone. I did so on a car I had for yeaaaaars and the engine looked great!

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