i'm sure some of you are already familiar with an Ultragauge (ultra-gauge.com). It displays
up to dozens of data points for display through the OBDII port. It displays some trouble
codes but does not allow their reset. each screen can only display about 8 fields but oodles
more are pageable. $70. The unit is the size of a credit card and about 8mm thick. Comes
in both hardwired and bluetooth configurations

I drive the truck more than the MB so it's mounted there the past half year. I will be picking
up another unit just for the E320.

I appreciate panel instruments for good info about all the vehicles I have, both 2 and 4 wheels.
Good job, guys and thanks for sharing!

__________________
-- raymond~
47º 34'N 122º 18'W