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I got a Mercedes E Class that got its engine overhauled and the problem i got now is that there is some oil leaking from the turbo in the exhaust pipe. i've send the turbo for repairs and the repairer said it was good. is there something that could be building pressure somewhere? plz help
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Check exhaust smoke color when engine hot. If there is white smoke, there may be oil in the pipes. Means the valve seal is leaking oil into the cylinder. Another way to check is to look at the spark plug tips. If is full of soot like burnt oil then the oil is leaking into the cylinders.
If yours is E60 turbo, check the presence of residue oil in both the exhaust and intake turbine. If there is, the oil seals in the turbo housing is leaking oil. They do sell service kits for turbos.
turbo units are attached directly to the exhaust manifold at the engine --probably under a silver heat shield
follow the hose back from the inlet manifold and you will find it
it sounds like you might have bad gaskets or seals even if you have replaced them if they are bot installed just right you can have leaks such as you have described
check for oil leaks around the engine manifold check rocker cover for leaks if its a diesel check the turbo charger for leaks check wiring around exhaust manifold
if the turbo is leaking oil into the engine then you have an internal engine problem. the turbo works off of the engines exhaust , therefore if oil is getting back into the intake from the turbo then it is coming from the exhaust. posible worn piston rings or bad valve seals. it also could be a bad turbo bearing and seals letting engine oil leak into the turbo from the turbo oil lines from the engine and blowing back into the intake.
Seek out another mechanic. White smoke from the exhaust is a symptom of coolant entering the combustion chamber. Most of the time this is caused by a blown head gasket. A loss of coolant with no apparent leak, a white foamy substance on the underside of the oil fill cap, oil level overfull, and air bubbles escaping from the radiator are other symptoms of a blown gasket or cracked head. Stop driving this vehicle until you have this diagnosed and repaired. A compression test will verify this. Serious engine damage will occur if you indeed have an internal leak so make sure one way or the other.
hello,according to service information;smoke formation or si 07.16-p-0004a (service inform) from mb ,your engine have normal function,if you want ,ask your dealer about the service inform with number 07.16-p-0004a,you can read the explanation regarding your problem,ty
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