Hi everyone had my 2002 ml270 for a month now and it's needed quite a lot of work so far which I expected for the price I paid for the car. Work I've done so far is new fuel lines, brake servo, and removed the swirl flaps from inlet manifold (what a job!!!) Engine oil and filter, gearbox oil and filter, fuel filter and coolant.
Right now the problem.
The car was running at about 60 degrees C so because mainly of the poor fuel economy I changed the thermostat to a circoli one. Temp started to rise but not enough to open thermostat so I could refill rest of coolant I took out. I took it for a spin and it was driving very smooth but quickily got hot to about 90 degrees which I expected but then it started to smoke grey white smoke and engine was rough so I pulled over to refill the coolant. That was a couple of days ago and it is still the same. Starts fine idles rough and when accelerating it smokes mainly grey/white sometimes black also. It sounds like it's missing when revved to about 1200 revs but gets a bit smoother when revved higher. It doesn't seem to go into limp mode but struggles reaching any higher speed. I think it's been running cold for some time and not been heating the engine enough to burn all the crap away that accumulates. Now it has and ruined my injectors or turbo. I don't know but I'm pulling my hair out now and hope someone can help. It has had the black death and has hard tar round the injectors which I am currently cleaning away to get the injectors out to swap seals but I am also struggling getting them out. They do not look like they are blowing now. I have done a leak off test cylinders 4 and 5 were low and even but 1,2 and 3 were almost double the amount of fuel but quite even. Just trying to give everyone the background with the car so sorry for the novel. Thanks in advance for any help given.
Right now the problem.
The car was running at about 60 degrees C so because mainly of the poor fuel economy I changed the thermostat to a circoli one. Temp started to rise but not enough to open thermostat so I could refill rest of coolant I took out. I took it for a spin and it was driving very smooth but quickily got hot to about 90 degrees which I expected but then it started to smoke grey white smoke and engine was rough so I pulled over to refill the coolant. That was a couple of days ago and it is still the same. Starts fine idles rough and when accelerating it smokes mainly grey/white sometimes black also. It sounds like it's missing when revved to about 1200 revs but gets a bit smoother when revved higher. It doesn't seem to go into limp mode but struggles reaching any higher speed. I think it's been running cold for some time and not been heating the engine enough to burn all the crap away that accumulates. Now it has and ruined my injectors or turbo. I don't know but I'm pulling my hair out now and hope someone can help. It has had the black death and has hard tar round the injectors which I am currently cleaning away to get the injectors out to swap seals but I am also struggling getting them out. They do not look like they are blowing now. I have done a leak off test cylinders 4 and 5 were low and even but 1,2 and 3 were almost double the amount of fuel but quite even. Just trying to give everyone the background with the car so sorry for the novel. Thanks in advance for any help given.
