Well, I just got back from the Road Test, looks like I fixed my over heating problem.

Replaced T-Stat Engine now getting real hot (covered there)

Seems like the problem all along was a bad Thermostat, all 4 of them.
Here's the story that lead up to this discovery:

Yesterday I replaced the Waterpump with out a problem and filled up the system with 1.5 Gallons of MB Antifreeze. That helped a little, about 3C . So it was back to the drawing board considering I had replaced every major component in the coolant system and also flushed it god knows how many times (once with MB citric acid powder). The only component that I couldn't say for sure was working right was the Thermostat. Also the way the car was acting pointed to the thermostat as well. I decided that Monday I would get another T-stat to try out.

Now comes Monday, I first went to my local MB dealer (where they know my name - that maybe a sign) to return the old waterpump core. But since I had already returned the first T-stat there I didn't feel right buying another one. As a result I drove down the Park Place since I also had to return a set of Subframe mounts I bought extra (a subframe mount kit comes with both sides). While there I bought another T-stat, Antifreeze and 2 bottles of Citric Acid. When I got home I tested the T-stat - it opened at 200F (91C - concurrent with my problem). I drove back to return it, this time I brought my testing equipment with me to try out thier T-stats since it takes an hour to drive out there and back.


Cutting to the point - the 4th MB Thermostat was also bad, I went to Autozone I purchased a Whaler T-stat from them witch works. I also called MBNA to tell them of their bad batch of T-stats.

I'm also thinking of writting a letter to them telling them of my whole problem that stemmed from a batch of bad T-stats.

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2005 Audi A4 1.8T CVT -Silver/Black "Siegfried"

1982 300D - Silver/Blue "Ralph" -For Sale:
http://www.peachparts.com/shopforum/showthread.php?p=852260

1989 VW Diesel Jetta Blue/Blue "Bodo" RIP