best way to wash under the hood
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Member
Joined: Feb 2009
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From: NJ
1998 C43 AMG
best way to wash under the hood
read and saw so much stuff on how to clean your engine and just wanted to know if its ok good idea or not? and hows the right and wrong way going about it? thanks
Member
Joined: May 2010
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S550
You can just pop the hood and hose it down. Make sure not to blast anything too hard, give it a light spray and leave the engine running so you don't waterlog any plugs, etc. The heat of the engine will also start to evaporate some of the water and you can take a rag and wipe up the excess when you're done. There are also some commercially available engine cleaners if your engine bay is particularly dirty. Just remember light spray and leave the car idling.
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Joined: Apr 2007
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300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
M113 engine
You don't keep the engine on while washing.
You cover the alternator put a plastic bag over the cold air intake.
Spray it down with gunk foamy engine brite,let sit per directions and hose off.
Then you start the engine after removing coverings.
Watch the decals on the ecu they will blow off if to much water pressure is focused on them.The m112 and m113 are nearly water proof. CCoils are sealed and unlike the m119 you need not fret about water in the spark plug recesses.
You cover the alternator put a plastic bag over the cold air intake.
Spray it down with gunk foamy engine brite,let sit per directions and hose off.
Then you start the engine after removing coverings.
Watch the decals on the ecu they will blow off if to much water pressure is focused on them.The m112 and m113 are nearly water proof. CCoils are sealed and unlike the m119 you need not fret about water in the spark plug recesses.
Super Member
Joined: Sep 2009
Posts: 550
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From: California USA
2004 S55 ///AMG, 2007 E350
No pressure washers, no steam cleaning. With a cold engine, start the car, run for 5 minutes till warm, not hot. I use an engine cleaner from Griot's Garage, hose it off gently, start the car to make water evaporate. Apply engine dressing, make the whole engine bay look like new.
One item to be cautious about, do not apply any engine cleaner to any stickers under the hood, it will dissolve the adhesive and makes them come off.
One item to be cautious about, do not apply any engine cleaner to any stickers under the hood, it will dissolve the adhesive and makes them come off.
