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Volkswagen Passat Turbo Issues

44 messages,  Last post on Oct 13, 2009 at 10:20 AM

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#2 of 44 ew by www5 Dec 08, 2006 (6:59 am)
This sound similar to what we have been fighting for months. Our mechanic pressure tested the engine and found no leaks. This is what he thought he would find since he has had very few problems with head gaskets. Our last fix was to replace the radiator core. To date that has fixed the problem for 2000 miles. Our mechanic said the passages in the radiator were extremely small. Replies to this message: frankeldaniel (Dec 11, 2006 10:04 pm) mybestdog (Dec 16, 2006 8:33 am) frankeldaniel (Jan 23, 2007 3:03 pm)
#3 of 44 Re: 2002 Passat 1.8 Turbo Overheating Problem: [frankeldaniel] by 600kgolfgt Dec 08, 2006 (2:48 pm)
Replying to: frankeldaniel (Nov 17, 2006 2:37 pm) If you drove the car with the mixed coolant - even for a short period of time, chances are the damage has been done. The mix of green and G12 coolants formed a gel-like substance in the cooling system passages of the engine, radiator, heater core, and associated parts.   All of that stuff has to be flushed out of there. At best, the damage done will be minor, such as a radiator or water pump replacement, and at worst, replacement of the heater core or your engine may be required (the latter two are very labor $$$$ intensive)...   In the future, have your minor service (oil changes, etc) done by the dealer, and major repairs done by a qualified private VW mechanic.   ...and stay FAR away from the quick lube places!   Good luck...
#4 of 44 Re: ew [www5] by frankeldaniel Dec 11, 2006 (10:04 pm)
Replying to: www5 (Dec 08, 2006 6:59 am) Was your coolant brown and mucked up at one point? Replies to this message: mybestdog (Dec 16, 2006 8:33 am) frankeldaniel (Jan 23, 2007 3:03 pm)
#5 of 44 Re: ew [frankeldaniel] by mybestdog Dec 16, 2006 (8:33 am)
Replying to: frankeldaniel (Dec 11, 2006 10:04 pm) I have the same vehicle and just uncovered the similiar issue. I had a slow leak after taking my passat to a quick lube oil change. Car appears to run fine and is not overheating, but the coolant is brown and mucked up. What does that mean? Replies to this message: frankeldaniel (Jan 23, 2007 3:03 pm)
#6 of 44 2003 1.8T water leak passenger side by vw27278 Dec 19, 2006 (12:25 pm)
I recently took my Passat to the dealer to have the rightside cv boot replaced and some recalls (passenger side seat heater switch, driver side seat heater). Now, water is leaking in on the floor of the passenger-front side. I pulled up the carpet and the floor was soaking (and yes, the stench gave it away and was the cause of the investigation). I poured water down the windshield and noticed water coming in from behind the dash. Has anyone had this problem? Is it coming in from the seal of the pollen filter. I'm a little suspicious b/c I never had this problem until after I got my car back from the dealer.   Any advice is very appreciated. -Thanks Replies to this message: flurdelis (Dec 28, 2006 1:55 pm) thesherriff (Feb 15, 2007 1:19 pm) h8passat (Apr 06, 2007 5:37 pm) devildel (Sep 24, 2007 12:50 pm) h8passat (Feb 23, 2009 8:19 pm)
#7 of 44 Re: 2003 1.8T water leak passenger side [vw27278] by flurdelis Dec 28, 2006 (1:55 pm)
Replying to: vw27278 (Dec 19, 2006 12:25 pm) We had this happen in our 1998 Passat on the passenger floor. (I was sitting in the passenger seat when we made a left turn and water dumped on my feet - there went those shoes)   It was a clogged drain in the area in front of the windshield where there is a grill. Leaves and such get in there and clog it - then it fills and over flows down in the passenger compatartment. (It is called the cowl in our other car - not sure if it is standard term)   We had body work to be done and the guy cleared out the leaves and such and cut a few extra drains in it for us. Hasn't been a problem since.   Good luck
#8 of 44 Passat 1.8T Smoking by zorro3 Jan 21, 2007 (7:39 pm)
I originally posted this as a reply, but reposting it here so that its in the correct category.   I have a 2000 Passat 1.8 Turbo which started billowing out a huge cloud of white smoke from the exhaust with an oily smell. Taking off the intake hose I found a small amount of oil on the inside. There has been no recurrence of that smoke bomb or oil smell for three days, and the car has run normally. A mechanic informed me this would certainly point to bad turbo seals and I should replace the turbo but I am a little suspicious of that analysis since he didn't inspect anything other than the hose.    I am no means a mechanic and i plan to take the car to VW since they presumably have the equipment to diagnose this. I was wondering if the oil residue in the hose could be related to crankcase ventilation and whether the white smoke could be a defective oil cooler or other factors than turbo seals.    The oil was about three quarters of a quart overfilled which may have something to do with it; I intend to get another oil change. Replies to this message: prop3 (Jan 31, 2007 5:30 pm)
#9 of 44 Re: ew [mybestdog] by frankeldaniel Jan 23, 2007 (3:03 pm)
Replying to: mybestdog (Dec 16, 2006 8:33 am) From what I gather, this lube joint might have mixed standard glycal alcohol coolant (the green stuff) with your pink Volkswagen G12. If not flushed soon, you'll end up in the same rabbit hole I just climbed out of. After replacing the radiator, water pump, thermostat and rebuilding the head gasket, I'm $3,500 poorer. The combination of the two liquids forms a gel that blocks up the cooling system.
#10 of 44 Re: Passat 1.8T Smoking [zorro3] by prop3 Jan 31, 2007 (5:30 pm)
Replying to: zorro3 (Jan 21, 2007 7:39 pm) MY 2002 Passat 1.8 Turbo recently developed this same white, oily smelling cloud of smoke coming from the exhaust pipe. The first time this happened, it was very cold (5 degrees F) outside. The problem went away later that day when the temperature warmed up outside. There was no problem for several days after. Then, again on a very cold morning, the same cloud of white smoke, that smells like oil! I have parked the car, waiting for an answer from anyone, and warmer weather. This sounds similar to your problem. Have you had any responses? A would appreciate any suggestions, thoughts or comments. Thanx.
#11 of 44 Smoking Passat by zorro3 Feb 01, 2007 (12:04 am)
This happened to my passat twice!! as well, on cold mornings after the car had been sitting overnight and I had driven more than 50 miles the day before. There were three days between those two incidents where the car was driving normally. I have asked an independent VW mechanic and the dealership who believed I had no serious engine problems such as bad valve seals/valve guides, rings, head gasket, or turbo damage since otherwise I would have continuous problems, not just one or two isolated incidents. Some oil residue in the turbo intake is a normal thing for these cars and not an indication of bad turbo seals.   I added Sea Foam which cleans contaminants out of both fuel and oil systems (its also an anti-gel) and the problem hasn't recurred since then. It can be used in the throttle body and intake manifold but I didn't attempt that. (Seafoam recommends you do an oil change fairly soon after using it)   The other day my car was in the shop for a timing belt change; a vacuum compression test on the car came up normal.

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