Question about 1994 Mercedes-Benz E280

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Mercedes service manuals

How to adjust the distributor on a 1984 model with fuel injection

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A mercedes benz is correctly tuned checked maintenanced and timed using star tech info. system prechecks performed, using test equipment are performed first. identification of the vehicles parts and numbers is required. this leads to a series of steps outlined in star tech info. to find a link to their website, ask on benzworld where many of these enthusiasts communicate and share their findings.
best advice

Posted on Jun 12, 2014

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Posted on Jan 02, 2017

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SOURCE: does the mercedes-benz 1986 mercedes 560 sel have

hello, 560 sel,,,model 126.039 engine with v-8,engine number 117.968 ke is is fuel injection system.ref. book;technical data mb,ty

Posted on Apr 29, 2009

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I'm having a problem. I have an 84 mustang gt

The 1984 model could be throttle body injected or a regular 4 barrel carb. The GT model is supposed to have a carb.
CFI is central fuel injection which is like TBI. The throttle body has two injectors mounted in the center, one for each bank.
If it has a carb you may have some adjustments you can make. If it is fuel injected you don't. The computer monitors the engine temp and exhaust gas to regulate fuel mixture.

Jul 02, 2013 | Cars & Trucks

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How to bleed injection pump 1984 mbenz 300sd

The pump is self bleeding so that is not the problem. I do suggest you hold the throttle to just short of full opening during cranking to gain max flow through injectors.

Jul 10, 2012 | 1984 Mercedes-Benz Mercedes Benz 300 Class

1 Answer

Cold start

Duty cycle needs adjusted, screw in middle of air cleaner assembly leads to it.

Also the fuel distributor may not be allowing fuel in at cold start like it should but until duty is set i wouldnt mess with it.

To set duty cycle its kind of drawn out to put here.

I suggest hopp on over to as they have some great guides and how to's.

Jul 18, 2010 | 1989 Mercedes-Benz 300-Class

1 Answer

Bleeding air out of fuel inj pump

loosen the fuel fitting on the fuel filter housing.
loosen the actuating button on manual pump. operate pump until fuel flows from the filter fitting free of air.
tighten fitting
continue operating the pump untill injection pump overflow valve opens up. This is known by an audible buzzing noize when the valve opens up.
tighten the pump acuator button.
Start and run the engine. check for leaks.
Hope this the info you are looking for

Oct 14, 2009 | 1984 Mercedes-Benz Mercedes Benz 300 Class

1 Answer


When were plugs, wires, cap, rotor and coils replaced? fuel filter another culprit. Fuel distributor is another problem as it is mechanical in your year. Fuel injectors also could be an issue but easily rebuildable. More info wold help but fuel delivery and ignition parts need to be checked and replaced for us to help more.

Jul 29, 2009 | 1984 Mercedes-Benz Mercedes Benz 300 Class

1 Answer

Mercedes 2.3-16v 1987 Cosworth flooding injection system

hi,seem all part have been check,to check further,you need to use a pressure gauge, to check the lower and upper chamber of your fuel distributor,only dealer have the tools,valve clearance is a hydraulic valve,no need to adjust,seem your car start,engine timing is ok,ty

Mar 31, 2009 | 1987 Mercedes-Benz Mercedes Benz 190 Class

1 Answer

Oil is mixed with benzin in oil carter

You getting benzin (petrol) into the engine oil??? I'm assuming your 190E is injected? Problem could be your fuel distributor. If you remove the lines from the fuel distributor that go to the injectors. turn on the ignition just so that the fuelpump kicks in (it only stays on a short time to pressurize the system)... there should be NO fuel coming out. If fuel bubbles out of any of the 4 (assuming a 4cyl) lines of the fuel distributor than the fuel distributor is 'faulty' and feeds the injectors to much fuel and the excess fuel washes itself past the rings into the engine sump. This can be caused by one or more of the O-rings inside between the plungerhousing and the upperbody or even some perforation in the gasket membrane.... either way the fuel distributor is not a servicable part, Bosch does not sell any kind of kit for the internal parts as the fueldistributors are factory adjusted to a certain flow and as new parts be of different thickness etc. the flow would be outside manufacturers settings. Cheapest solution would be a secondhand unit.

Jul 15, 2008 | 1988 Mercedes-Benz 190

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