[Vwdiesel] vw turbo recall? 1.8T

mikitka mikitka at embarqmail.com
Mon Dec 27 19:33:12 PST 2010

It amazes me that VW has their customers come into the shop for 10k oil
changes and they use a very poor grade oil.  You would think they would not
skimp on the oil since they are running 10k oil changes.  The place I use
for all my used oil analysis as expressed concerns with VW owners and their
use of VW dealer installed oil and 10k oil change intervals. The oil that VW
dealerships are using is not doing well at all.  No wonder there is a sludge
issue. This is for all gas and diesel models.


-----Original Message-----
From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com] On
Behalf Of Tad
Sent: December 27, 2010 6:31 PM
To: Tony and Lillie
Cc: diesel fans
Subject: Re: [Vwdiesel] vw turbo recall? 1.8T

The 1.8t has an oil-cooled turbo, no?  I would venture that this is the
outcome of VW cheaping out and not using a water-cooled turbo.  On a TDI
it's OK because the EGTs are lower, but on a gasser the turbo gets too hot.

I wonder what kind of oil these sludged cars are running?

On Mon, Dec 27, 2010 at 2:54 PM, Tony and Lillie <
tonyandlillie1 at earthlink.net> wrote:

> Brian, I didn't know VW made a 2.0 20V in the states, what did it come
> from?
> The 2.0 TFSI engines are 16 valve, as the Direct Injection required
> replacing one of the valves with an injector. They couldn't find
> room for DI and 5 valves per cylinder.
> As to the 1.8T problem. Yes, It is a huge problem. Rarely have I worked on
> any VAG product with a 1.8T that doesn't have some evidence of sludge.
> let me clarify that term as well. The "sludge" that is a problem in these
> engines isn't the molasses like substance that used to collect in engines
> in
> the past. Rather, it's more like carbon particles, almost like grains of
> sand. They get stuck in the screen of the pickup tube and slowly block off
> the oil supply to the engine. I recommend to everyone with one of them to
> pull the pan and clean it at about 80k. It is more of a problem with the
> Audi A4's and VW Passats because of the engine placement. The Longitudinal
> placement necessitates a smaller oil pan, as it has to clear the subframe.
> So, they have more problems, and yet are much more difficult to pull the
> pan
> down from. But, if I owned one, I'd definitely be dropping the pan by 80k.
> I'd also run synthetic and change the oil every 5k max.
> The other thing that is a problem in these cars is that people are not
> taught proper cool down procedures by most salesmen. If you run a turbo
> hard, you need to give it an idle period afterward. Otherwise, the oil
> basically cooks in the turbo, and that's where the carbon particles can
> form
> as well. The smaller the turbo is (and it's very small on the 1.8T's) the
> more critical this becomes. A good Idle period is about 2 min, BTW.
> As for bent valves, I mostly see the hydraulic tensioners loose their
> pressure, and of course the belt jumps and bends valves. I've seen them go
> as early as 82k, and as long as 107k. I've never seen one that was run
> longer than that on a 1.8T. I would only go 60k if it was my car. In fact,
> I
> won't go longer than 60k on anything that is a valve bender.
> The water pumps do have some issues as well, as mentioned. The other thing
> they do is the plastic impeller expands over time off the shaft and no
> longer spins. If you ever see one that overheats in minutes, that will be
> why. You can check it by pulling the thermostat and feeling into where the
> impeller sits.
> Oh, and I'd love to see a pickup with a 1.8T or 2.0T. That would be fun
> practical!! Mostly fun, though ;-)
> Tony
> ----- Original Message -----
> Subject: Re: [Vwdiesel] vw turbo recall? 1.8T
> > Hi Matt;
> > I have a friend that has a foreign car garage and does VW, Audi,
> > Jaguar, BMW, etc. Seems they find the weak point on the 1.8 T is the
> water
> > pump that adjusts the timing belt. People tend to change the belt and
> > the old pump and then end up with many bent valves when the water pump
> > fails. On another thought I have a VW 2.0 20 valve turbo engine here
> > a
> > perfect block and 12 bent valves because the car owner didn't change the
> > belt at the recommended time. 140,000+ miles and 12 bent valves. I
> haven't
> > decided what to do with the engine yet. Perhaps I will put it in one of
> my
> > 1981 VW Rabbit pickups.
> > Brian Decker
> > Western Washington
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