It is not that I can't it is that I refuse to spend 200 bucks for a little pump that does nothing really in the climate I am in. There is a diference between over engineering and a needed part. If I was up in the Wild White North further than maybe I would notice and need it. Oh and I am by far not the only one who does not have a working aux pump, also note the name Aux pump. It is needed in severe cold where the coolant will cool too much to maintain heat as the car is idling for extended periods of time and of course flow is reduced. Flow is reduced in this manner at this point in every vehicle on the road. Pump is moving the least amount of fluid at idle, yet none of these other autos need this pump for there passengers to survive. So is this really a needed part or simply MB covering all its bases? I chose not to use it and have given my story and the fact that I have not got cold or froze to death as of yet in winter time while at a stop light. I will add that many people probably have a dead pump and do not even know it. I only know mine worked when I got the car and I am not paying 1/4 of what I paid for the car for this pump just to know it works again. **** I do not even know if it is truly dead, it does not leak so it is of no concern since I get good heat.

In the end I say try it without, can't hurt it anymore.

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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.....