Cleaning engine with low pressure garden hose and degreaser - Mercedes-Benz Forum
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post #1 of 2 (permalink) Unread 05-21-2019, 12:26 PM Thread Starter
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Date registered: May 2019
Vehicle: 2009 GL450 SOLD / 2011 GL550 current daily
Location: Wisconsin
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Cleaning engine with low pressure garden hose and degreaser

I want to clean up the very dirty engine bay on a 2011 GL550 I just purchased so it can be clean and so I can visually see any issues.

This is what I plan to do, are there any other suggestions for a GL550 specific engine?

- Run cold engine for a couple of minutes to warm up grease/oil/dirt on engine.
- Remove plastic cover and air filter housings.
- plug up exposed inlets from where air filter housings were removed.
- put plastic bag over alternator.
- put plastic bag over ECM
- Put plastic bag over MAF
- 1) Spray engine with degreaser.
- 2) scrub with brush.
- 3) hose down with low pressure water from garden house. Do not use pressure washer.
- repeat 1-3 if still dirty.
- blow off excess water with air compressor or use leaf blower if you don't have air compressor.
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post #2 of 2 (permalink) Unread 05-22-2019, 03:43 AM
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Vehicle: 1989 W124 260E
Location: Kidderminster in Worcestershire
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And then get ready for problems .

This is a retro ride .
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