Still have the problem with the error code 00515-030 < G40 ! My Boschman will soon be "irre" , but fortunately (still!) ambitious .Maybe some of the others can give him some tips about the matter or had the problem :
This error message can only be deleted until the next engine start.
The following have already been exchanged :
1.Revealer new
2. OT - and speed sensor new
3. Original Lambda probe new
4. Other similar motor control unit for comparative purposes
The individual voltage values for this are all OK , measured at the output of the ECU.
Nevertheless, the Lambda probe does not regulate, CO2 is thus at 1-1.5%, even at increased speed quite constant.
Consumption is then so around 16-17 L with sensen cross country drive, one also smells, that he runs far too fat, engine runs a bit "stitched".Before the problem he ran with 12-13 L and full power, but also smelled a little (significantly less) after fuel.
So he's running in some sort of emergency run program, but why ?????????
For many suggestions we would be grateful !
(Perhaps one can speak directly with my "Boschmann" !?! He'll know more than I do in things like this.
) I (we) count on you!
MFG Marko
The Wapu, though. 
