Question about 1989 Mercedes-Benz Mercedes Benz S Class

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I have a 1989 Mercedes 560SEL. Gasoline engine.Problem is the car will not start unless I push the choke down on top of the carburetor OR I can prime it with a little gas After doing this I can drive it all day and everything is ok.But the next day after it sits overnight I have to do the same thing to get it to start.Acts like the choke is sticking.If so,how would I adjust it? Is it vacuum operated?

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Vacuum is only used to open the choke. To close, assuming it is an automatic choke, there is a thermal spring coil. There is usually an adjustment that consists of loosening the fasteners on the round spring housing and turning. It should have marks for different settings, but these are not exact. Adjust in the morning by loosening the screws, opening the throttle with one hand, and rotating the spring housing until the choke is just closed. Tighten the screws. Make sure to check the engine after it warms up to see if the choke is opening properly. There may also be a fast idle setting that uses a cam to increase the idle when tne choke is closed.

Posted on Aug 04, 2017


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Posted on Jan 02, 2017

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SOURCE: engine oil capacity for my mercedes 560

8.5 Quarts, or 8.0 Liters, includes the oil filter.

Posted on Jan 28, 2009

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SOURCE: Automotive, 1967 Mercedes, 2500 fuel

The fuel pump is bad you will need new. You may be able to obtain an in line check valve and install in fuel line between pump and carb so gas can';t drain back when sits.

Posted on May 09, 2010

  • 14036 Answers

SOURCE: location fuel pump on a

fuel pump located under rear floor panel.

Posted on Apr 03, 2011

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1 Answer

How to prime carburetor on 1988 Toyota tercel 1bbl

Normally, you wouldn't need to do this to get the engine started. If you have a mechanical fuel pump ion the engine, just cranking the engine over should cause the pump to push gas into the carburetor. And if an electric pump, it should come on with the key in on.

But to prime, pour a small amount of gas down the throat of the carb, and crank. As the engine fires and runs, the pump should begin working and pushing fuel into the carb.

Dec 25, 2014 | Cars & Trucks

1 Answer

Does a 1989 ford f-250 truck have a chock or not?

Unless it is a Canadian version, it is fuel injected, and has no choke. If it is a gasoline engine and has TBI (as opposed to multi-port injection), it does have a "cold injector" (which acts like a choke).

Jul 18, 2014 | Cars & Trucks

1 Answer

Maruti gypsy

You know how you have to mash the gas to the floor to set the choke? Every time you do that, a little jet of gas is sprayed downward into the air stream going down the throat of the carburetor. I think the accelerator pump inside the carburetor is doing that. But it should be enough gas to start a cold engine if your choke is adjusted right. You can observe the gas going down the carburetor... bore, I guess is the right word. (Throat is a common term, air horn is the correct term.) But to observe it, you have to take the air breather off, hold the choke valve open, and look down the throat while you pull the throttle lever to wide open throttle. Just try it a couple of times, and see if gas is being sprayed down the carburetor's air horn. It may help to use a flashlight. Of course, this is all done with the engine off.
You didn't say how it ran once started and warmed up. Is the power and performance satisfactory? Hard to say if it's a fuel problem. If the problem is only hard to start when cold, it could be your choke not adjusted or working right. You could put in a manual choke, pretty simple kit. People often do this when they don't want to fool with the automatic choke. I'm an old geezer, but I for one am glad that carburetors are a thing of the past (even though my daily driver at present has a carburetor -'87 sentra). Fuel injection is much simpler, and easier to diagnose.

Dec 22, 2013 | 1989 Suzuki Samurai

1 Answer

The car is very heavy on gasoline

Raise the hood of your car and find the air cleaner.
It should be on top of your engine. It is usually large and maybe round, and usually black.
It is usually held in place with a wing nut.
Remove the top of the air cleaner, and look down inside this.
There should be a hole about 2-3 inches across.
This is the top of the carburetor, if your car has one.
There is a flap you should see inside the top of the carburetor throat. That is the choke flap.
That should be open when the engine is hot, and nearly closed when the engine is cold.
If that flap is sticking, it will stick nearly closed, increasing your fuel consumption.
You may be able to check if it is stuck by moving it with your finger.
You can buy a spray can of carburetor cleaner at the car parts store, and spray that flap, and free it up to work better.
Follow the instructions on the can.

Jan 19, 2013 | 1981 Ford Escort

2 Answers

I drive a 1989 Volo 740 2.3L turbo, and while I am driving the engine will die out. If I flutter the gas peddle sometimes I can keep the car going. I changed the fuel filter, the prime pump in the tank,...

Usually- the turbo's wastegate gets stuck from the heat/corrosion. A couple shots of pen oil I recomend PB BLASTER- (non flammable). Actuate the lever manually- with the engine WARM- NOT HOT OR COLD!! If the wastgate is frozen- its plugging and choking the exhaust.

Aug 09, 2011 | 1989 Volvo 740

1 Answer

1989 Mira Automatic stalls when coming to a stop unless I pull the choke out

Your idle fuel mixture it too lean. What this means is that it is not getting enough fuel at an idle. The most common reason for such problems are either problems with the linkage or vacuum lines or dirt or water in the carburetor. Make sure all your vacuum lines are good and connected, especially the one that goes to your distributor. Unless your fuel system has water in it or has had the filter removed and replaced with a hose, it is unlikely that the problem is the carburetor, unless the car has been sitting for a long time. Check these other things, first. Also, before your pull your carburetor off if these other things are not the problem, make sure your engine ignition has been properly tuned. Ignition problems are the most common problems on gasoline engines.

Feb 19, 2011 | 1989 Daihatsu Charade

1 Answer

Automotive, 1967 Mercedes, 2500 fuel

The fuel pump is bad you will need new. You may be able to obtain an in line check valve and install in fuel line between pump and carb so gas can';t drain back when sits.

Sep 14, 2009 | 1983 Mercedes-Benz 300-Class

1 Answer

2001 mercedes c240 has a really rough start but when the car almost dies I turn the car off wait 3 seconds and it starts perfect. Next comes the issue with having to warm it up before driving anywhere...

Gasoline- thank you. Warm up is not an issue like diesel is. Sounds like the choke is is either wide open or over choking. With the engine cold, remove the air cleaner and note where the plate is at the opening of the carb. If it is wide open then without touching anything else and engine not running, step down on the gas pedal and see if the choke plate reset itself to restricter the carb inlet. If it didn't, then take some WD 40 and spray the linkages and the rod ends holdin the choke plate.By hand work the plate and linkage holding the gas open at the carb. Then set the plate to wide open and do the gas pedal thing agan to see if choke sets itself back to restricting the carb intake. If it does, start the engine and as the engine warms upm the choke plate should start opening on its own and you are off and running. Roitine question. Is your air cleaner clean? If the choke plate needs adjusting. get back to me. K? Good luck Remember to press the gas pedal down once before cranking. That sets the choke for cold start. Hope this helped you Good luck Note, the WD40 won't hurt anything but avoid spraying with engine running or when engine is hot..

May 12, 2009 | 2001 Mercedes-Benz C-Class

2 Answers

1988 F-250 460 engine stalls when dribing down the road

On older, carbureted engines, cold stalling (and hard starting) is most often due to an automatic choke that is sticking, misadjusted or broken. Cleaning the choke mechanism with aerosol carburetor cleaner may free up the choke allowing it to work properly again. If the choke housing as an electrical heating element, the element may not be receiving voltage when the key is on, or the element may have burned out (check resistance with an ohmmeter).

Other causes of stalling with a carburetor include an idle speed adjustment screw that is set too low (turn screw to increase idle speed rpm). The engine may stall if the idle fuel mixture screw(s) are not adjusted correctly or the idle mixture port(s) are dirty or clogged with fuel varnish deposits (clean the carburetor and readjust the idle mixture screws for smoothest idle). Stalling can also occur is there are vacuum leaks in the carburetor, under the carburetor (bad base gasket), or any vacuum hose connections to the carburetor or intake manifold

Jun 22, 2008 | 1988 Ford F 250

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