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N55 Engine Bay Clean-up
14-07-2017, 04:22 PM
Post: #1
N55 Engine Bay Clean-up
Guys,

What do you suggest I do here to clean up the engine bay?

She's real dirty...

What can I safely do?

Chuck some prepsol and wipe down?
Gently spray down excess?
Wipe dry? Leave in sun to dry?

I am worried about water getting on parts and then starting corroding over time? Causing electrical issues down the line. Or am I being over cautious?

Really don't like seeing her so dirty...

Thanks for any suggestions...

Pete

[Image: img_8668_2259094608.jpg]
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14-07-2017, 06:06 PM
Post: #2
RE: N55 Engine Bay Clean-up
Steam clean is the safest to clean engine.. i never put water in the engine bay...
My buddy with e36 m3 had bmw replace countless parts due to them pressure washing engine...

Anyway if you don't have a steamer then best is to use some kind if all purpose degreaser and a few micro fibre cloths...

You'll have to go over it a few times but start with big pieces and around the engine bay and under bonnet..

Be patient..
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PLV
15-07-2017, 12:46 AM
Post: #3
N55 Engine Bay Clean-up
Prepsol or Wynns 1min mag cleaner and brushes to work it in. Rinse off with brushes and hot water in the delicate areas and light hose pipe on less delicate areas, engines bays are designed to take a fair amount of splash rain/puddles etc just not direct jet of water or high pressure. I'd also work on a warm engine.

Use common sense at all times and a few black bags to cover the seriously delicate stuff when the water comes out never hurt.

To dress the plastics Shield professional silicone-free plastic and rubber dressing worked in with a brush is amazing, better than the similar Wurth and Meguairs products, R125 at Midas for a big bottle, you can thank me later Wink
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15-07-2017, 01:01 AM
Post: #4
RE: N55 Engine Bay Clean-up
RoflRoflBiglolBiglol Ive never had an engine issue washing it 30+ years, guys are too scared....but as Blueskye mentions...Prepsol+++ WithStu

if there are things that are going to rust it wont be from a bit of washing - your car heats up and cools down every time you drive it and there is moisture in the air that can/will do more rusting.

2011 120d Coupe (Black - Yin)
2012 125i Coupe (White - Yang)

2009 Z4m Coupe ( found a new home )
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15-07-2017, 10:47 AM
Post: #5
RE: N55 Engine Bay Clean-up
Your DME sits on the side of the engine. don't get that wet
Don't get cleaning agent of any kind near your MAF.
Doont get water near/in close to your ABS pump

Other then that, go mal

I will be on the other side if anybody needs me Bluebiggrin
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PLV
15-07-2017, 11:42 AM
Post: #6
RE: N55 Engine Bay Clean-up
Thanks everyone for their inputs! Much appreciated!

Will do the gentle and patient approach and see how it goes!

Will let you know... ;-)

P
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15-07-2017, 12:21 PM
Post: #7
RE: N55 Engine Bay Clean-up
Careful around headlights - water in the xenon control units can be an expensive repair. You can HP wash the engine bay just be carefull and sensible. Having compressed air available to help blow off any excess water is handy.
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PLV
16-07-2017, 09:14 AM
Post: #8
RE: N55 Engine Bay Clean-up
Steam clean bro. .Chef..
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PLV
19-07-2017, 07:17 AM
Post: #9
RE: N55 Engine Bay Clean-up
Hey guys...

I found this somewhat useful video. Will give it a go on the weekend...

https://www.legendarycarvideos.com/learn...ful-video/
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19-07-2017, 08:11 AM
Post: #10
RE: N55 Engine Bay Clean-up
Steam clean with a decent APC. Cover all necessary electrical parts.
Before
[Image: img_3411_3543664850.jpg]
After
[Image: fullsizerender_1_1922380737.jpg]

Before
[Image: img_4564_2701916466.jpg]
After
[Image: img_4595_5903229638.jpg]


[Image: fullsizerender_2524305311_1617012908.jpg]
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19-07-2017, 08:14 AM
Post: #11
RE: N55 Engine Bay Clean-up
Looks fantastic! Well done Shaun!

Damn it - I love it when you post sh*t...

[Image: shaunb_6506250719.jpg] [Image: shaunb_6506250719.jpg] [Image: shaunb_6506250719.jpg] [Image: shaunb_6506250719.jpg] [Image: shaunb_6506250719.jpg] [Image: shaunb_6506250719.jpg] [Image: shaunb_6506250719.jpg] [Image: shaunb_6506250719.jpg]
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19-07-2017, 10:29 AM
Post: #12
RE: N55 Engine Bay Clean-up
(19-07-2017 08:14 AM)PLV Wrote:  Looks fantastic! Well done Shaun!

Damn it - I love it when you post sh*t...

[Image: shaunb_6506250719.jpg] [Image: shaunb_6506250719.jpg] [Image: shaunb_6506250719.jpg] [Image: shaunb_6506250719.jpg] [Image: shaunb_6506250719.jpg] [Image: shaunb_6506250719.jpg] [Image: shaunb_6506250719.jpg] [Image: shaunb_6506250719.jpg]

Reminds me of a box shape bmw with those perfectly round headlights Rollsmile

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PLV
03-08-2017, 10:24 PM
Post: #13
RE: N55 Engine Bay Clean-up
https://www.youtube.com/watch?v=PRSoRkM8GcM

Found this, thought i would leave it here
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PLV
04-08-2017, 06:18 AM
Post: #14
RE: N55 Engine Bay Clean-up
Thanks Taran

It's the same clip as in my post a little higher up.

But good find!

CoolShake
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04-08-2017, 07:52 AM
Post: #15
RE: N55 Engine Bay Clean-up
I spray cold engine with prepsol. Then with hose I gently rinse. Have done this hundreds of times literally. Maybe I am lucky but have never had a problem. When done I cover everything in Herschells multi purpose oil. ( it is very light).
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