hardychokes
New Member
2007 ,w204 2.2 om646 engine ,i can smell diesel from injector area ,no leaks ,when i put down black smoke from exhaust lots of it any ideas????
2007 c class diesel smell from engine is it delphi injectors leaking
- Thread starter hardychokes
- Start date
Could it be that the car is trying to regenerate the dpf and hence running rich? Might be worth taking it for a long run down the motorway and see if the problem persists. Maybe see if there are any error codes showing up on a scan. Could be any of the several reasons due to which cars run rich from faulty sensors to fuel pressure regulator could also be the injectors like you suggest.
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Dpf cars should never blow visible smoke. If they do the dpf is broken.
If you suspect a leaking seal, and easy test is to pour a small amount of water into each injector well. You will see the bubbling if they are leaking.
If you suspect a leaking seal, and easy test is to pour a small amount of water into each injector well. You will see the bubbling if they are leaking.
OP
OP
hardychokes
New Member
Hi yes you were right 2nd one from windscreen full of diesel around injector and bubbling what do you recommend???
Remove injector, clean the seat back to shiny metal, same for the injector sealing surface.
New copper washer, new torque bolt (7nm 90degrees 90degrees)
Make sure the bolt thread is completely clean and dry
OP
OP
hardychokes
New Member
Thanks will try that when I get a new copper washer thank you
A wire brush on a stick should clean the seat up.
You need a new bolt as well!
You need a new bolt as well!
amazighman
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Use lapping stick with sandpaper taped to the end of it ,
