Check Engine Light - Code P042B P042D P2002
Does anyone know what these are and if they are covered under the voluntary emissions extended warranty (my GLK is out of warranty). Thanks!
Could be any number of things in the emissions system, including EGR and/or the DPF itself. What code reader are you using? It must not like MB specific codes.
Does the car run any different?
Last edited by andreigbs; Aug 10, 2019 at 02:28 PM.









