a/c blower regulator problem?
my '97 E320's a/c also blows cold, but won't go above 4th position (medium high). JM is probably right-after troubleshooting at MB dealer and after market shop came down to blower motor or most likely blower regulator. BTW-it's probably NOT the control panel, which they'll try to replace at about $900.! What's the replacement mod you're talking about?