2007 Mercedes B-class 2.0 diesel automatic w245

[elliemag999]

Hi, i have a Mercedes B-class 2.0 diesel automatic
car in limp mode codes the following
2514
2526
2527
2195
2067

i have changed air mass sensor, lambda sensor and put a new turbo. i clear the codes and car goes straight back into limp mode

can anyone help please

 

[mersum1es]

description of codes?

 

[mioba]

can anyone help please

Yes a decent garage who know what they are doing

 

[MrTash]

Visually inspect the related wiring harness and connectors. With that many codes, I'd start looking at the wiring but sounds like you need someone to check it out so try looking for an Independent Mercedes Mechanic in your area who knows the car, not just any old garage.