JJRodger,
Interesting... Both of mine light up whenever either front door is open. So the drivers door can open, and both will light up, and same with the passenger door.
Your passenger door should be lighting up every time a front door is open too... take it back and have them corrected!
CONGRATULATIONS ON THE PURCHASE! My, do you have good taste!

__________________
2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)