I recently purchased an Autel 319 to troubleshoot a warning light on my car. Unfortunately, all I'm able to receive is a 'Linking Error.' I tried the unit out on my 4WD Chev truck and it operated properly. I've followed the set-up proceedure correctly, but the unit will not link with the Mercedes.

I understand that the AL 319 is suppose to be compatible with all 2000 + year vehicles, but I'm not so sure at this point. Has anyone experienced a similar problem? I like the unit, but if I can't get it to work I'll have to send it back. Thanks for your time.

Wayne