u know where im talking about? under the hood, below where the brake fluid goes?
mine starts with MKA then has 5 numbers after it.
I'd like to know about this too... my 54 is mka4871
This is from Jimby: my jan 56 ckd is MKA1121 and my dads aug 55 ckd is MKA9262
this link may be of interest...