Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
P2015 - Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance Bank 1Read more: http://engine-codes.com/p2015.html#ixzz3bSlFqdTM
It typically is the swirl motor which sets the position of the intake swirl blades to create turbulence when the motor is at low RPM. There is a cheat on the MB site to just put a resister in line to fool the computer itto thinking it is in range. The vains don't really do much and gas mileage isn't effected. So I put in the resistor.
From what I can tell not having the intake on there is causing the system to try to pressureize the intake through the PCV line. I'm not sure how, but that is what I've been told. I don't have details on the crankcase vent system, but it must get pressurized somewhere. Usually they dump off into the intake because it is under vacuum and it pulls gases out of the crankcase. On this system it is blowing.
I'm hopefull that when I get the new gasket for the turbo inlet and teh system seals that the car will run again.
Anyone have info on the crankcase vent system on this 2007 e320?
2007 has the OM642. It does not have the oil separator. That was the 2006 and earlier I6. This is the V6 3.0l. The vent feeds into the side of the plastic tube that feeds the turbo about 3 inches from the turbo. It is a comon obsetvation that some oil gets sucked into the turbo, but mine is blowing oil mist out 8 feet and getting it all over the engine. It finally blew the dipstick out of the holder. Car was running great before this came on very quickly.
I took the turbo off (royal pain in the back side). The intake side seems to be bad. There is over 1/4" of play when I attempt to wiggle it. Discharge of the intake side has significant oil (read it poured out) in it. I don't see any oil down in the tubes that feed the turbo. Not certain that this is the cause of the pressure in the crankcase, but I will need to get the turbo rebuilt.
Ok. I did take the turbo off and will be taking it to a rebuilder. We'll see what they say about that one. I know high crank pressure usually is excessive blow by from the pistons. It just seems odd that this would come on so quickly, but maybe the ring just went.
I'll have to send it to someone to do that. I don't really have the tools (which I could buy), but I don't know how to do that with a diesel. Take out the glow plug? I think that's really difficult to get at them. True?
Car isn't running. It's sitting in the driveway. I'd have to have it towed, so I might be incentivized to do that myself if it's not super difficult (I did take the turbo off myself).
uhg. Will someone within 100 miles of me have that? There is an import guy in Eau Claire. Or there is a VW dealer. They would have a diesel mechanic. I'm assuming that a VW test would be the same as the Mercedes for compression.
Assuming I can find someone to do it, are piston rings as bad as I think they are......Like $2500.00??
Wonderful. Know anyone who wants to buy a car cheep? 40 hours x $150/hour is $6000.
I paid $9000 for it.
Guess I'm stuck.
I can't find anyone within 50 miles that will work on it. My normal mechanic is $95. All that is not relevant when I can't find anyone to do the work.
So here's what I've learned now. I took Turbo off the car and took it to a place that rebuilds turbos for fleets. They have done the bluetec sprinters. I looked at the inlet before my wife took it down. The turbine was loose,, so I thought that was a problem. They noted that the exhaust side is very tight and it does not turn the intake side. So I covered over the exhaust ports and put some air on the oil in/out ports. Air blows out the exhaust side. so there is a significant leak from the exhaust side to the oil line.
So there is a possibility it is not the piston rings. Only wish I could start the car and see if it still blows out the vent line without the turbo hooked up.
Hippo64, you've been helpful. I know it's really a tough one to troubleshoot and doing it remote make this almost impossible.