Where is OBD port on Mercedes 2008 GLI 320 diesel

SOURCE: 2005 mercedes benz 320 diesel

These instructions will work from 09/01/2003 and up 211 Model E Class Mercedes
1. Insert igntion key, switch to position "1"
2. press the page button (looks like a page in front of another page. Use the one with the writing on the rear page) on the steering wheel controls repeatedly until the mileage is displayed within the multifunction display.
3. Press the cluster illumination button 3 times in short succession. The battery voltage will be displayed.
4. Press the up or down arrow buttons until the service menu appears.
5. Use the + and - buttons to select the menu option "confirm"
6. Press the page button on the steering wheel until " complete service" is selected.
7. Confirm "Complete Service" with Page Button. The display will show "Service Confrimed"

SOURCE: re-setting service indicator on ml 320 2008

This Can Be DONE BY Disconnecting Battery For 5-10 Mins.

SOURCE: white smoke mercedes benz 2008 gl-class 320

Seek out another mechanic. White smoke from the exhaust is a symptom of coolant entering the combustion chamber. Most of the time this is caused by a blown head gasket. A loss of coolant with no apparent leak, a white foamy substance on the underside of the oil fill cap, oil level overfull, and air bubbles escaping from the radiator are other symptoms of a blown gasket or cracked head. Stop driving this vehicle until you have this diagnosed and repaired. A compression test will verify this. Serious engine damage will occur if you indeed have an internal leak so make sure one way or the other.

SOURCE: change speedometer from miles to kilometers on a

PUSH LITTLE BUTTON ON ODOMETER

SOURCE: On a Mercedes Benz 2008 E-320 Bluetec it says: ESP

2008 should still be under warranty. Call dealership or the 1800 mercedes number and have them fix it.