I found this today:
http://www.cobbtuning.com/products/?id=3120

A hand held ECU reprogramming device.

 

Do they make them for our cars?
That link goes to one for a Subaru.

 

That's what I'm wondering.
They have them for Infiniti G35, Nissan 350Z & Lancer Evo.
Couldn't find one for an SRT or MB.

 

They do make one. It's called a STARTECH DRB Laptop. It cost about $20,000 and you have to be Benz shop to get one...

I would try and search MBWORLD.ORG and see if anything comes up. Handhelds like that actually kind of scare me, cause if you don't know what you are doing, it's easy for the motor to go boom...

 

any tuning upgrades go thru Bosch. if bosch doesn't offer it no one else can do it.

 

Here is something I have not seen on here. http://www.superchips.co.uk. Might be only help for non supercharged.

John

 

Independent shops buy these as well. Another option that some shops use is the Autologic computer with the Mercedes programs. The shop that will be tuning my V8 has both. Some shops that have the Startech also have european maps that add about 20 hp.