-When was the transmission serviced last? Was a Mercedes filter used?
-Have you checked your ATF level?
-The vacuum modulator valve diaphram could be leaking.
-The vacuum line to it could be leaking.
'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)