I need to replace the center vent blend door actuators on my 1998 wagon. Does anyone have a procedure for doing this? Does the dashboard have to be removed to replace just those two actuators? Thanks in advance!!

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1984 300CD (sold)
1973 220DPK 4 spd (died)
1978 350SL 4 spd gray market
2003 SLK32 AMG
1988 300CE (sold)
1997 E420 (Totaled)
1998 E320 Wagon