hello shop forum community--- i have a 2 part question. just bought an 02 e430 sport with 89k on ebay-love the car so far.(1)the digital read out for the temp guage and time is half readable-can this be repaired or is a new cluster needed?? (2) car only came with one smart key-- bought one on ebay for $30-is it possible to program the key i bought to work on my car?? or do i have to go to dealer and spend couple hundred for new key from mb. any info will be greatly appreciated. sam heard