Trying to find out what version my CLC200 2.1 cdi

[markjay]

Done a diagnostic on my clc 200cdi ac low press canbus error but no led bulb on the car
So is it the battery that to low but on tip it say 12.4 votts

12.4v is a bit on low side but it's still OK and shouldn't cause any problems.

See below - this isn't an exact science and the information in some tables will vary, but it should give you an idea: