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Mercedes 240d engine looses power and cuts out have changed glowplugs and injectors and serviced diesel pump it ideals find and starts fine just driving 200m then it dies on me

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  • 35 Answers

Common rail faulty

Posted on Feb 07, 2014


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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

jasperoni
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SOURCE: mercedes 300ce Engine cuts out at any speed, even when ideling.

It sounds like a fuel delivery issue. Mercedes recommends replacing the fuel filter every 60k. If it has been longer than thast since the filter change start there. Fuel pump relays are another common problem on this era. They are located behind the battery. Remove the plastic cover and you will se 2 black relays( yours may have a mass relay if it is a 90 model year, it will have a plastic knob on top that you turn to the left to unsecure it) IT will say kickdown on it the climate control is the other relay and it will say klima. Look for signs of corrosion on the solder pins. If your fuel pump(located at the right rear) is very noisy when it operates I wouild recommend replacing it. During this era of Benz about the only way to diagnose this would be to run a bunch of fuel pressure tests and to drive vehicle with a meter on the relay and on the pump to see if the relay cuts out or the pump cuts out. I always recommend to do both pump and relay because they can cause one another to fail. good luck.

Posted on Sep 19, 2009

  • 53 Answers

SOURCE: 240d mercedes. automatic door locks seldom work.

Very common. The rubber diaphrams and checkvalve o rings do not last forever, and they begin to leak. The most common one is the driver side's vacuum door lock valve. This one is activated when your key turns the lock and diverts the valve's vacuum, which activates the other door's plungers to open. This is the one to fix first, and it requires that you remove the inside door hardware and panel to reach it. Buy a new valve ahead of time so you don't have to take it apart again. Then try the system. If it works but still not well, then get ready to test the other vacuum pods: Trunk, gas cap, center dash (HVAC). The center dash pod is fairly common and a bit difficult to reach (I would go through the center dash' vent with one hand, and the removed glovebox with the other) to replace the center. Check the web for the detail on that one because it requires taking the pod apart while its still attached to its bracket under the dash) Not fun, but better than removing the entire dash. In the end, troublshooting - specially without a vacuum pump (you can get a hand held one from an autostore) - is tedious and is by trial and error and replacing the pods. But, either you do it, or be charged $75/hr and no gaurantee the leak can be found. New door valve is about $20 and the dash pod $25.

Posted on Mar 19, 2010

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SOURCE: 1992 Lexus LS400 cuts out, loos of power,eratic idle, no codes

1993 Lexus LS400 wont idle but will run

Posted on Sep 11, 2012

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Audi glowplug oil leak


Glowplugs are electrical heating devices, they don't cary any oil, unless it's not tight enough and diesel? is blowing backthrough the loose glowplug. Otherwise The diesel injector might leak if again something is not properly tight.

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Skoda octavia diesel won't start after having fuel pump and injectors replaced


first fill up fuel filter with diesel . then loose injector No3 pipe
and start engine until diesel comes out .

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1983 Mercedes Benz 240D; engine does not stop when key is turned OFF.


Diesel car engines are shut off by an electrical switch on the fuel pump, called the 'stop solenoid'. If you can locate the fuel pump, try to find the single electrical wire to it and disconnect it while the engine is running. (Watch out for moving parts!). The engine should stop. If this is the case, try unscrewing and cleaning it in diesel. Failing that, a new one shouldn't be too expensive.

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Transit tipper 05 won't start first time when cold I have just had a Diesel pump fitted for 600 pound as this fault was coming up but it still does exactly the same it will start if it is warm but after...


With a Diesel there are additional parts that you have which affect the Cold start. There is a timer between the glowplugs and the Power relay on the start circuit. The timer cycles the glowplugs off/on for a variable time period. The more cold, the longer the cycle period.
Glowplugs go bad. You remove them like sparkplugs. Testing them is a matter of comparison. When power is applied they can melt, so test with care. Hook battery jump cables to each glowplug taking care to attach one lead to the base (avoiding the threads) and then briefly touch the top of the glowplug.
The quicker the plug glows, the better it is. The darker, the worse it is.
But the timer must provide the juice to the glowplug for it to work. A bad timer will not properly heat the glowplugs. The timer must get its' power from the Power relay. So you can have acceptable glowplugs, and a bad timer.
Ultimately once the engine cylinders have run hot enough, a Diesel fires by compression and not by spark as a gas motor does. That is why once you have a hot diesel, it will start freely.
It is why I explained the needs of a Cold Diesel engine and I hope this helps you.

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1 Answer

1995 f-350 runs rich and won't idle?


If this is a gas engine, check for air leaks on the intake manifold and every vacuum line and switch you see. Use a pump spray water bottle and with the engine running, spray around seams and such.

A change in rpm or stalling will indicate the leak.

What is probably happening is the air leak is making the system run rich to balance the air/fuel ratio. This would make more fuel dump into the engine where it is not needed.

Another possibility is a loss of the signal from an O2 sensor. The O2 sensor sends a signal to the ECM to set the fuel demands and let the engine controls know that the fuel ratio is rich-normal-lean to adjust to optimum running condition.

Now if this is a Diesel, the hard to start condition would be due to an inoperative glowplug timer or worn glowplugs. If this is the mechanically injected model, the injector pump is timed to get the fuel into the cylinder either earlier or later to change the fuel ratio. Your diesel injector pump would need to be retimed. It will help across the board.

Please rate my info and let me know how you solved this.

Mar 03, 2013 | 1995 Ford F350

1 Answer

2002 Ford F450 7.3 Diesel. Will not start. I use to have to keep truck pluged in all the time for it to start. Now it will not start at all. Turns over fine. Fuel is fine just will not start?? Please...


Hello, Most likely your Glowplug Relay is bad, and it supplies power to the Glowplug Timer which also may be bad.

Just follow the wires that are on the Glowplugs up to the Glowplug timer. Use a Voltmeter and check if the power wire that goes into this Timer has fire when the Ignition is turned to the RUN position. If there is fire going into the Timer from the power Relay, pull off one of the Glowplug wires and ground 1 end of a testlight and put the other end on the Glowplug wire.

The Timer itself will kill the power after a predetermined time based on Temperature. The colder the engine, the longer the Glowplugs stay lit. If you have power reaching the Glowplug, your power Relay is fine. You just have to observe how quick the Timer stays on.

The Glowplugs only have 1 or 2 chances to do their job at the Start-up. They are needed to make a Diesel start cold. Cold meaning at outside AIR temperature, and engine block temperature. There should be clicks under the hood and the lights should flicker in rhythm to the clicks if the Timer is working.

If you find that both the Timer and Power Relay are working, the Glowplugs need to be tested. They come out like sparkplugs. But you test them either on a special machine or use battery jumper cables. To test, hook one battery cable to the Glowplug base, avoiding the thread. Then take the other cable and arc it on the top of the Glowplug.

Caution, you can melt the Glowplug. If you get a bright glow, the Glowplug is good. If the Glowplug is dark or very slow to glow, it is bad. This should be all you need. Would appreciate a note after you fix it.

Jul 06, 2011 | Ford F-450 Cars & Trucks

1 Answer

Engine will not cut off for 190e 2.6 mercedes benz can remove key engine still runs


is that a diesel ?? if yes then on the injection pump sometimes there is a solenoid that goes bad and it doesn't let the Injection pump to cut the diesel that is being pump to the injectors.

Dec 31, 2010 | Mercedes-Benz 190-Class Cars & Trucks

1 Answer

Hard starting Hard starting Ford diesel 7.3 Power stoke 2000 Cranking over just doesn't seem to fire, but runs fine once running.


Hello, there are several things as likely to cause this problem, either spark or fuel.

The glowplugs are needed to make a Cold engine start. You can take a testlight to the glowplug wire of several cylinders and it should light when the engine is put to the Run position. The glowplugs get their power from a Coldstart Timer and it may have an additional relay.

The Coldstart Timer is the part which clicks and makes the lights dim when it is cycling. It also controls the dash indicator and makes the dash light work when the glowplugs are ready. The timer changes the amount of time it cycles according to outside and engine temperature. If you have noticed the "Ready" light vary its timing, the timer is working.

Say you have no spark at the glowplug wire, work backwards to the Coldstart timer and see if it is getting power. Power in, none out, bad timer. No power in, work backwards for a Relay or fuse.

Now if you have power at the glowplug, remove several and test them with Battery jumper cables. Put the NEG on the base and touch the POS to the stem. You can melt them if you overdo it. The longer it takes for the glowplug to glow, the worse it is. Once you find a good glower all tests are relative to the good one.

Fuel problem. If the glowplugs test out, check the fuel. Long start times can mean the fuel drained back to the tank and has to be pulled all the way up front. You can unscrew your fuel filter and see if it is topped off or empty. Then you need to test the lines from the fuel filter back.

It is also possible an internal Solenoid in the Injector pump is sticking. A light tap before starting can indicate this problem if it starts better after tapping the pump.

Thats about it. I hope you find my Solution useful.

Dec 02, 2010 | 2000 Ford F350 Super Duty Super Cab

1 Answer

A relay in the dash board ic clicking and truck wont start its a 1999 f250 super duty diesel. it turns over but wont start. i just installed new fuel pump its working fine


It sounds like the "Timer" for the glowplugs, but you may want to prime the Fuelfilter to provide a draw for the fuel. One of the problems is you lost the fuel in the lines as soon as the fuelpump was disconnected.

If you installed the fuelpump because of a "NO start" condition it may have been the Glowplug timer all along. You may have taken a wire loose for the Timer or broken a wire. The Timer box needs feedback from the Glowplugs.

Disconnect one of the Glowpug wires and put in a test light to the wire. Observe when you put the engine in RUN position if the Testlight will light up. If the Testlight does not light, you are not getting power to the Glowplugs.

Diesels need Glowplugs only for starting. After that, the compression operates the engine. The Timer for the Glowplugs regulates how long the Glowplugs work each cycle. You may have to test the Glowplugs if they get power but do not work.

Each Glowplug is like a sparkplug. You would need to pull them and connect 12 Volts to each. Use a jumper cable and do not touch the threads. Use power sparingly or you can melt them. But 1 by 1 you can see a difference in a bad or good glowplug by how each gets hot.

Aug 14, 2010 | 1999 Ford F250 Regular Cab

1 Answer

Starting trouble


Suspect the glow plugs or timer not working proper. You could plug your truck in keep the engine warm so it starts easier. Or you could have the glow plugs tested and replaced if faulty. Your engine has 8 glowplugs and even a couple faulty glowplugs will cause problems starting. You could have injector or injection pump problems as well but harder to diagnos yourself.

Feb 26, 2009 | 1995 Chevrolet K2500

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