Got orange warning light on my lt35 03 reg.symbol is orange with a almost complete circle on it in white

Not sure. May be able to google for troubleshooting tip. This could be telling you that brake pads/ shoes need to be replaced. I am not familiar with Mercedes. Good luck..

A yellow explanation point symbol on the dashboard typically applies to the Tire Pressure Monitoring system. A thick ! inside a half drawn flat tire symbol to be complete and comes in yellow color when lit. Under normal vehicle set-up, if this indicator stays lit after the power-on selftest, you need to check your tires for any uneven pressures and adjust their pressures to correct specifications. Okay? : )

A red exclamation point inside a circle when lit indicates your parking brake is on, or your brake fluid level is low.

it is probly time for it to be serviced

it sounds like the esp/asr warning lamp indicating a fault with the stability system. Is your abs lamp on too?

Brake pads require checking
This warns you early so you don,t ruin discs

This is the brake pad warning symbol. You need to change either the front or rear pads, and replace the sensor.

This light is for multi funtion automatic transmisson cooling system

It means that a SERVICE is due. The orange man symbol is showing there is a problem with the airbag system. 

Check ther coolant level, if this is ok, its possible the sensor on the coolant resevoir faulty. the other warning light sounds like the brake pad warning light. is the warning yellow?

hi, i have a 318i on a 98, that light came on on mine a while ago,its a brake pad warning light, tells you they're getting low, however, the light was orange, not red. hope this helps..