I would take along a couple gallons of water, a gallon jug of Rotella diesel oil, a roll of duct tape and some basic tools as well as what was mentioned above. I would also check the radiator and heater hoses as well as the fan belts before starting out. Once you get her home, change all the fluids.

Make sure that you join the Mercedes Benz Club of America (MBCA.org) and participate in your local chapter. You will meet a lot of people who canhelp you learn about your car that way.

Also take some time and read the DIYs on this site. You can perform almost all the maintenance tasks on your car yourself if you want or you can make sure that your shop is doing the right thing if you read these.

Good luck on your drive!

__________________
"I have no convictions ... I blow with the wind, and the prevailing wind happens to be from Vichy"

Current
Monika '74 450 SL
BrownHilda '79 280SL
FoxyCleopatra '99 Chevy Suburban
Scarlett 2014 Jeep Cherokee
Krystal 2004 Volvo S60
Gone
'74 Jeep CJ5
'97 Jeep ZJ Laredo
Rudolf ‘86 300SDL
Bruno '81 300SD
Fritzi '84 BMW
'92 Subaru
'96 Impala SS
'71 Buick GS conv
'67 GTO conv
'63 Corvair conv
'57 Nomad