Q14: The error message memory of my car’s engine control unit shows the error message 30EA, and the specialist (in BMW service) says that the NOx catalytic converter requires desulphation. I live in densely populated area, and have no appropriate roads in near reach to perform the process (it’s necessary to drive with speed 110 km/h for at least 30 minutes). And also the desuplhuring process requires some special activation, control of process, where special diagnostic’s tools are necessary. Will NOXEM solve my problem?
A14: Yes, NOXEM will solve your problem. Only after each 7’000 .. 8’000 km (up to 15’000 km with latest software releases of MSD80) you will have to spend some 5 minutes, and delete the information regarding sulphuring of NOx catalytic converter, using INPA, ISTA D or similar software. There will be no need to look for specific road section, no risking with penalties for speeding, no control of desulphuring process – no money & time expenses.
Q21: How significant is to keep the NOx catalytic converter clean of nitrites and sulfur? Could the clogged NOx catalytic converter impair the engine performance (torque)?
A21: The amount on nitrites, accumulated in NOx catalytic converter, is measured in milligrams, but the amount of sulfur – in several grams. Critical boundary, when MSD80 considers that NOx catalytic converter is critically polluted with sulfur, is 3 .. 4 grams, which can not decrease the power of the engine in any way (the layer of sulfur on the walls of catalytic converter can be measured in microns). Even in cases, when due to damaged crankcase ventilation membrane, the engine had huge oil consumption, and the NOx catalytic converter was removed because of suspicion, that is has been clogged because of burned oil, the suspicion didn’t proved correct. No improvements of torque were observed after disassembling the NOx catalytic converter.