Lifetime Premium Member
Date registered: May 2006
Vehicle: 2001 E320 - Brilliant Silver/Ash: 107,000+
Location: West Virginia, USA
Mentioned: 0 Post(s)
Quoted: 6 Post(s)
Mine have done the same thing and I think with age this happens. Both original keys have about the same range. However, when I bought one the new style chrome key it had a better range than the old ones. I haven't done this but you might try cleaning the IR transmitter window on the key fob and the receiver windows in the door handles to see if that helps.
Mercedes Benz - Das beste oder nichts!