Got the valve yesterday (sorry no stop in-was raining hard and got lost twice!) and put it in last night. Now the climate control seems to work perfectly again. AC out center vents, floor heat, recirc, etc. Amazing such a tiny piece of plastic controls so much.

Thanks for your help.

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2002 Mercedes-Benz E320 4Matic
1995 Mercedes-Benz E320 Wagon
2005 Land Rover LR3 V8 SE
1999 Audi A8 4.2L quattro