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PointedThree : Sedan Forums : W140 S Class : Photo DIY- Complete Fuel System Cleaning Service

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Photo DIY- Complete Fuel System Cleaning Service

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Posted 9/6/2010 8:59 PM

G-AMG
G-Class DIY Host

Date registered: May 2006
Location: South Texas
Vehicle(s): '04 G55, '80 280GE, '99 S420, '98 E320, 2011 E350
1000

Photo DIY- Complete Fuel System Cleaning Service

Greets.

As a Preface- I am NOT Advocating this procedure since it is basically contradicting M-B's Manual "Fuel Additives are Neither NEEDED nor Recommended"

The reason "I" am doing this is because TWO of my Trusted MB Lead-Tech's/Master Mechanics (one of which is also on the regional Racing circuit) SWEAR that this is NOT a "Voodoo Chicken"... and one of the Techs states "Their Dealership ROUTINELY does this procedure on ALL Major Services".

Since I was working-up a "rough idle" problem on the W140, I was at the "Clean Throttle Body" part of the Mental Diagnostic Flow-Chart. "I might as well service all my cars while I'm at it.." Because I have read a bunch of times the suggestion to "Clean the Throttle Body"... I have YET to run across any PHOTOS of "How To", so I opted to take some pics.

I also know several folks recommend MAS cleanings periodically, as well, so I cleaned those while I had them out.

The Throttle Body "Flap" is not very accessible to "Open and Close" during the Throttle Body Cleaning Procedure , so I ended up just with the "Standard" Atomized Cleaning, Misting the material into the body neck.

Since it is recommended to do the cleaning with the engine WARM, what I did was disassemble as much as possible with the engine COOL, just to make life easier.