How to remove a CDI injector in a ml270?
The car that will be used as the example in this tutorial is a ML270 CDi, where most of the rules apply to the other CDi injectors. Firstly, remove the engine cover and determines which injector (s) are leaking. You should be able to hear the faulty injectors but if not, use some water or solvent on the rocker cover when the engine is running.
What to do if your CDI injector is leaking?
Firstly, remove the engine cover and determines which injector (s) are leaking. You should be able to hear the faulty injectors but if not, use some water or solvent on the rocker cover when the engine is running. With the engine cover off, remove the injector electrical plug and high pressure pipe.
How long does it take to fix an injector in a Mercedes C220?
After you have spent a half hour with the manual and are ready to start work, plan on about 2 hours per injector as an average time if you are working fairly quickly. Re: Mercedes C220 CDI – Easy to Fix Leaking Injectors? I’ve seen several 4/5/6 cyl Mercs with this problem.
What causes a Mercedes Benz injector to leak?
Due to poor design, the injector seals on Mercedes diesel engines can leak, which means uncombusted diesel and exhaust gases are pushed back past the injector seal and up the injector shaft. This all occurs during the compression and exhaust cycles of the engine.
How to fix a leaking CDI fuel injector?
After you’ve disconnected fuel and electrical parts (great care due to high pressure etc), you have to remove the two small screws which hold the injector clamp in place. You will probably need a form of slide-hammer which is screwed to the top of the injector, to get it out. Not a job for the feint-hearted!
After you have spent a half hour with the manual and are ready to start work, plan on about 2 hours per injector as an average time if you are working fairly quickly. Re: Mercedes C220 CDI – Easy to Fix Leaking Injectors? I’ve seen several 4/5/6 cyl Mercs with this problem.
How long does it take to fix a leaking CDI?
Even if you have to spend another 50 or so on tools, it is cheaper than having this done at a dealer. After you have spent a half hour with the manual and are ready to start work, plan on about 2 hours per injector as an average time if you are working fairly quickly. Re: Mercedes C220 CDI – Easy to Fix Leaking Injectors?
Is it easy to fix a leaking injector in a Mercedes?
The injector is a precision fit in a long bore, which may need to be reamed clean if you ever manage to get the injector out, then you have to clean the seating (reamer again) and fit new parts. The injectors themselves are quiter pricey even as service exchange parts.
The car that will be used as the example in this tutorial is a ML270 CDi, where most of the rules apply to the other CDi injectors. Firstly, remove the engine cover and determines which injector (s) are leaking. You should be able to hear the faulty injectors but if not, use some water or solvent on the rocker cover when the engine is running.
Is the No 2 injector seal leaking in a Mercedes Sprinter?
In a recent Mercedes Sprinter engine replacement (Used engine fitment) it was noticed at the time of purchase that there was an issue with No.2 Injector seal leaking.
Due to poor design, the injector seals on Mercedes diesel engines can leak, which means uncombusted diesel and exhaust gases are pushed back past the injector seal and up the injector shaft. This all occurs during the compression and exhaust cycles of the engine.
Can a Mercedes Benz injector be put back together?
ALWAYS use a new bolt and copper seal. They are pennies from your local Mercedes Benz dealer. You need to make sure the injector retaining bolts goes deep enough to clamp enough. This is vital. Finally, you can put it all back together, remember to add a new washer on the end of the injector.
How big is the injector seal ring on a Mercedes?
The extended threaded shank length, 85.83mm long, 6.0mm dia., 8.8 grade, factory hold down bolt, hold down pawl and injector seal ring are identical part numbers for both the 5 cyl. and 6 cyl. engines.
ALWAYS use a new bolt and copper seal. They are pennies from your local Mercedes Benz dealer. You need to make sure the injector retaining bolts goes deep enough to clamp enough. This is vital. Finally, you can put it all back together, remember to add a new washer on the end of the injector.
Why did I change the injector seals on my Mercedes?
After changing the injectors the correction was down to about 1 on the two cylinders. Idle was much more stable after the change. The engine has 125 miles and that is also a good reason for changing them. It was only the copper injector seals that the OP has replaced.
How to repair a CDI injector on a Mercedes Benz?
Take your time and be patient. Get the thread clean as possible and remove all of the carbon that can clog it. If the threads are worn due to poor workmanship before use a helicoil to repair it. ALWAYS use a new bolt and copper seal. They are pennies from your local Mercedes Benz dealer.
Is there a Mercedes diesel injector for sprinter?
“Here at the Global Sprinter Research Center I am always eager to investigate Sprinter related technical issues.
How to remove a CDI injector from a Black Death?
Use your fingers first to wind it in and out. Be very very careful not to go too far or snap it in the head. If you snap it the cylinder head will have to be removed. If you go too far you will penetrate the water jacket. Take your time and be patient. Get the thread clean as possible and remove all of the carbon that can clog it.
How do you remove a CDI injector from a Mercedes?
Next, clean all of the carbon from around the base of the injector and vacuum it all up. Undo the injector bolt (caution – they snap easy) and dig out the retaining clamp and vacuum any loose carbon. Some injectors may be loose enough to remove but others not. If stuck, you may need to use a special tool to remove it.
“Here at the Global Sprinter Research Center I am always eager to investigate Sprinter related technical issues.
What to do if you have a diesel injector problem?
Start the engine and watch for the darkening/spotting of the brown paper with diesel spray, this will indicate quite clearly where the problem lies. Once identified the work can begin – Run the engine until nice and warm then turn it off and remove the keys.
What happens if you leave CDI injector untreated?
This all occurs during the compression and exhaust cycles of the engine. The result of this means the space between the rocker cover and the plastic lid can become infested with a coal like substance, which will get worse if left untreated.