Injector cleaner

1961-1968: a.k.a "Finnie" or "Heckflosse" models
190, 190D, 200, 200D, 220b, 220Sb, 220SEb, 230, 230S, 250SE coupe, 280SE coupe, 280SE 3.5 coupe, 220SEb cabrio., 250SE conv., 280SE cabrio., 280SE 3.5 Cabrio., 300SE, 300SE coupe, 300SE conv., 300SEL
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Posts: 172
Joined: Sun 18 Oct, 2009 5:52 pm
Model you own: w112

Injector cleaner

Post by Mick_Marsh » Tue 10 Apr, 2018 9:21 pm

Do people here run injector cleaner in their finnies?

What brand/type do you use and how often do you do it?
1965 W112 300SE Heckflosse
1970 W109 300SEL 3.5

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Mercedes Demigod
Posts: 8087
Joined: Sun 11 Sep, 2005 8:01 pm
Model you own: w109
Location: Brissy

Re: Injector cleaner

Post by Mercmad » Fri 13 Apr, 2018 7:58 am

Not a good idea actually. The best thing to do is find someone with a bosch injector tester and get them to test the injectors. Similar to a diesel test, it is easy and quick to do . if any are fuzzy or blocked they can be cleaned by gently poking a fine peice of fishing line into the end to clear out deposits. then,when using the car, add ATF Dex III to the fuel, at one liter per hundred liters of petrol .This preserves the tank and lines, lubricates the injection pump and keeps the injectors clean .

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300 SLR
Posts: 2103
Joined: Fri 10 Oct, 2008 12:10 am
Model you own: w111
Location: Perth WA

Re: Injector cleaner

Post by Bartman4800 » Fri 13 Apr, 2018 1:27 pm

I got my hands on a mechanical injector tester a while ago.

It is for diesel injectors, but I guess the same fitting applies.

I am in WA, where are you?

1963 220 Sb Sedan "Kermit" (Australian Assembly)
1960 220 Sb Sedan "Zum Schlachten" (Early German Assembly, with a torsion bar spring for the bonnet) - Stored in Country WA
1981 Subaru Brumby 1.8 with Weber and 5-speed box "little utie" - Sold to another enthusiast!
2006 Ford Focus "daily driver"
2002 VW Passat V6 30V Station Wagon (SOLD - This car into a money pit)
2011 Kia Sportage "Missus commuter Bus"
2002 Mitsubishi Rosa Bus (converting it to a motor home)

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