1.6TDI DPF - ein Rätsel - 0.0g Aschemasse | Posts 16+

I can also say with 100% certainty that the particle mass is not lost. After an 'update' without starting the engine, it reappears as it was before.

Not for everyone and not always .

Hi.

With my 1.6 TDI engine, the ash mass reading always shows 0.0g when checked with VCDS. I wouldn't worry about that.

The error (00910 - Warning light for hazard lights (K6) 007 - Short circuit to ground) that you have in the log is also "normal." There's an update for the BMCs that should fix this.

My catalytic converter (CAYB) regenerates approximately every 600-700 km. In each case, it's the calculated soot mass that triggers the regeneration, never the measured soot mass (determined by differential pressure).

It is alleged that not all workshops completely remove the DPF from the vehicle when replacing the EGR cooler. Some only detach it from the turbocharger and push it to the side.

And yes, the 1.6 TDI engine is causing more and more problems. I wonder where this will all end up .

Regards,
Jan.

"Just remembered something else; I recently had a faulty N18 valve replaced, which led to a complete replacement of the EGR cooler. Before the repair, the error would appear and then clear within 150 km. I was quite surprised by this, as no more error messages were generated, and the car seemed to run normally. I suspect that the original N18 valve wasn't sealing properly, and the DPF was receiving excessive soot during full load. This might also be the case for you, Blackfrosch."

/Jan

I've flashed the vehicle's software myself a few times, which is why I'm so confident.
So, the 0.0g are "normal," thanks for the information.

"I'm not worried about a stuck EGR valve because the mass airflow is correct. The EGR is deactivated, but the potentiometer for the valve is failing. This is causing the system to go into limp mode. It's not possible to override the error in the data set."

The exhaust gas cooler is switchable; in urban driving, the EGR system is used to increase the temperature. However, due to a potentiometer issue, it goes into a limp mode, so only active regeneration level 2 functions. This means the post-injection for the EGR is disabled, and the idle speed is increased, etc.

The issue is now resolved for me.
Thank you all!