Newbie with 2003 SL500 AC problem - PeachParts Mercedes-Benz Forum

Hung Hua · #5 02-14-2009, 12:45 AM

After carefully compare the OBD II connectors and with a little force, I was able to connect the OBD II to the car. Performed the “Key ON Engine Off” and the “Key On Engine Running” code reading both results PASS with no trouble codes.

I tried to over charge a bit but didn’t help, released some freon to almost under charge also didn’t help. Will recharge with oil and freon again and hope for some luck.

Thank you for the suggestion so far. If you have procedure with steps to diagnostic the AC issue for 2003 SL 500 please let me know and I will try that procedure.

Thanks,