Scrufdog

My neighbor has 94 C280 with an intermittent throttle issue. Sometimes you press the gas and the engine doesnt rev. It has the engine light on, however I dont know how or if you can jump out the service port under the hood to flash codes, or if you have to have a scanner for it. The OBD-II port under the dash doesnt apparently use OBD-II protocol, I used both my pocket scanner and laptop to try and access it, and get no comm errors.

So, is there a way to pull codes, or is this a dealer kinda thing?

Thanks

xvvvz

94 has the OBD II port and many say they can read from it with a standard scanner. MBs can be picky about scanners. Sometimes I have try a couple of times with my scanner on a 99. 94 MBs have an early adoption of the OBD II since it was not mandatory until 95, so there can be some quirks. There is also a 38 pin diagnostics port in the engine compartment but you are going to need an interface and software that can read things. MB SDS is a given for success. Other software like Carsoft seems to be limited in functionality at best.