Today I tried to do the correction of fuel consumption.
But the OBC won't store, when I press S/R it kinda resets the info.
Like if you press 1827corr and press S/R it resets back to 1000.
The same with the CODE function.
Anyone who knows what to do?
Its the big OBC from af EU M5 92 retrofitted the coding plug fitted in the obc, in a 520
Appreciate any answers that may help