Heater Core end tanks suck ass and that is where they die. I just replaced mine a few weeks back. You need to remove the dash and center radio/HVAC controls and then you will see the heater box. Disconnect the box's vacuum and unbolt it. Remove and R&R the heater core. Then put all back together. Took 5.5 hours to do myself, and I also used this time to look around and replace any old cracked vacuum connectors. The Heater Core was a hair under $100 shipped. Not fun, but not a horrid job either.

As for the lawsuits, I believe MB one and had to do nothing. Which sucks because I would have liked them to cover the cost of replacement but Oh Well, it is an 18 year old car.... Burnt the crap out of my ankles trying to get accross 3 lanes of traffic and to a parking lot before the block cracked due to alomost getting to the red when it happened. Just glad my wife was not driving at the time. Funny how they had nothing in the to guide the hot coolant away from the drivers legs in case of the heater core popping!

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~Jamie
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2003 Pewter C230K SC C1, C4, C5, C7, heated seats, CD Changer, and 6 Speed. ContiExtremes on the C7's.

1986 190E 2.3 Black, Auto, Mods to come soon.....