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.
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.
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.
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.
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.
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.
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.
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!