The intercooler hose beside the intercooler itself, is leaking(looks more like sweating) oil, and collecting some crud in the process.I don't like the idea of oil being in there to begin with, but I guess VW had to comply with emissions, hence the recirculation type of design for these gasses to be emitted, hence the oiling. My questions basically are, do I need to replace the hose because the seal is faulty at that joint? Or will even a new one, not be able to contain the oil at that low point of the plumbing?I'm also worried that since oil is leaking from there, then that must mean that I'm leaking and loosing boost??What do you guys think about this? Oil is leaking from my hose, too, right at the bottom, next to the oil pan, where the hose hits its flat spot. When i did my tranny fluid change last weekend, i noticed oil on the hose, the oil pan and up and to the back of the oil pan. It is all wet but coagualted, making me think that the oil is leaking out of that bottom joint on the hose and blowing back with driving and coating the rest of the area. There is also a fair amount in the sound deadening material in the belly pan.with all the talk of oil chain pump failures, i was going to go to the dealership - since my car is still under warranty - and get them to look it over and diagnose.
But, if this is fairly normal, i might just save myself the headache b/c sitting around at the dealership, only to have them tell you that nothing is wrong, sucks.by the way, car has almost 43k, seems to use around.5-1 liter of oil every 10k, and has no overt signs of an oil pump chain failure (that is, no new sounds i can detect, and runs just as rough at idle as it always has). None of the connections are 100% air tight. Air pressure pushing oil past the o-rings is going to happen. The turbo is producing more than enough boost to overcome the losses. The pressure sensor is past these connections, at the back of the engine compartment, in the rigid pipe going to the intake.You might replace the o-rings if they are the black ones with the green ones (3C0 145 117 F).
You don't need to replace the entire hose. The oil is coming from the crankcase ventilation system.Thanks for the o-ring info. I might try to replace a couple, and see what happens.So basically, what you guys are trying to say is, that too much oil has accumulated in there over time, and the only solution to this, is to change this emissions complying, crappy recirculatory design, with something like a Pro Vent? I've thought about the Pro Vent before, but living and driving the car in temperatures like -20C and below, I've have read from quite a few Passat TDI members, that the Pro Vent tends to freeze up, and basically render the car useless, until it's towed to the garage. To rid yourself of the oil-in-the-intercooler problem, do what VW is too cheap to do. Install a crankcase vent filter.
Oil is leaking from my hose, too, right at the bottom, next to the oil pan, where the hose hits its flat spot. When i did my tranny fluid change last weekend, i noticed oil on the hose, the oil pan and up and to the back of the oil pan. It is all wet but coagualted, making me think that the oil is leaking out of that bottom joint on the hose and blowing back with driving and coating the rest.
Racor is one mfr. The available CCV filters are made for diesel trucks, so you generally have to buy the smallest available and shoehorn it in. On my 2004 B5.5V TDI, I found space below the intake air filter housing and above the plastic wheel well liner. I installed a drain hose from the CCV vent filter housing, down to a point where I can see it when I am rotating the tires every 5000 miles. In that interval, I get almost a pint of gook out; a mix of oil & water.
I sleep MUCH better knowing that stuff is not getting into my intake.More importantly, that gook is not clogging my intake manifold and is not having to pass thru the turbo's blades. To rid yourself of the oil-in-the-intercooler problem, do what VW is too cheap to do. Install a crankcase vent filter. Racor is one mfr.
The available CCV filters are made for diesel trucks, so you generally have to buy the smallest available and shoehorn it in. On my 2004 B5.5V TDI, I found space below the intake air filter housing and above the plastic wheel well liner. I installed a drain hose from the CCV vent filter housing, down to a point where I can see it when I am rotating the tires every 5000 miles. In that interval, I get almost a pint of gook out; a mix of oil & water. I sleep MUCH better knowing that stuff is not getting into my intake.More importantly, that gook is not clogging my intake manifold and is not having to pass thru the turbo's blades.I'm seriously considering this option.I don't think that VW was too cheap however. I'm sure that passing the 'green' requisites had something to do with not going the less troublesome route, no? I'm sure that passing the 'green' requisites had something to do with not going the less troublesome route, no?I thought all the plumbing was to get the turbo-compressed air over to the intercooler and back?
It's the location of the intercooler way off in the bottom front corner of the engine compartment that necessitates all the plumbing.That doesn't have anything to do with 'green' requirements as far as I know.You should check out the all the additional componentry used by the new Mercedes Blue-Tech diesels: Urea injection, particulate filters and so on. Now those are clean compared to our Passat TDIs. They had a booth at the Toronto Auto show last week with all the components laid out in detail. I thought all the plumbing was to get the turbo-compressed air over to the intercooler and back?
It's the location of the intercooler way off in the bottom front corner of the engine compartment that necessitates all the plumbing.That doesn't have anything to do with 'green' requirements as far as I know.You should check out the all the additional componentry used by the new Mercedes Blue-Tech diesels: Urea injection, particulate filters and so on. Now those are clean compared to our Passat TDIs. They had a booth at the Toronto Auto show last week with all the components laid out in detail.No.I was talking about people asking why VW didn't add something like a provent, or adding a CCV. This would surely prevent many of these little problems like oil gunk accumulation within. This is what I was referring to as the 'less troublesome route', and having to pass emissions being the reason why they opted without.
That re explained, I still could be wrong with my assumption however.