Deaktivierung AGR

...
If the AGR valve can be deactivated, does the same apply to the DK valve? Both are relevant to exhaust emissions.


That's a huge difference.
The AGR map can be adapted, but the monitoring of the DK (differential pressure sensor) cannot.


It is very useful to adjust the AGR rate.


It is absolutely unreasonable to disable the EGR (Exhaust Gas Recirculation) system in a modern EU4 engine.
You will likely notice very little, except that your engine will take a very long time to warm up. This will bring you a lot of joy during the winter.
In any case, it's not enough for the effort you're planning to put in.



Don't worry about my AU...

You should be aware that in the future, it won't just be about the AU (technical inspection). Even a simple traffic stop can cause you a lot of trouble. And the inspector who wrongly issued you an AU despite visible 'defects' will face equally severe consequences. Starting January 1, 2010, the penalties are going to be very high.
Currently, the auditors from TÜV and DEKRA are aggressively inspecting these vehicles. From my fleet, 5 vehicles were selected for further inspection after the mandatory technical inspection (HU) and emissions test (AU). Have fun if any irregularities are found there.

I'm just trying to protect you from pointless spending and actions.

It seems you have absolutely no idea how the system works and what effect your interventions are having. Therefore, I would advise against making such modifications.



It's just a well-intentioned piece of advice!

Deus Violentia wrote:

... If the AGR valve can be deactivated, does the same apply to the DK valve? Both are relevant to exhaust emissions. ...

The exhaust-relevant monitoring of the EGR system is not deactivated!
Only the nominal value of the setting will be adjusted.

goettmann wrote:

Currently, the auditors from TÜV and DEKRA are aggressively pursuing these vehicles. From the inspection center near me, 5 vehicles were taken for a follow-up inspection after the technical inspection (HU/AU).

According to what criteria were these 5 vehicles selected?

ulf wrote:

According to what criteria were these 5 vehicles selected?

It is supposedly supposed to work according to the "principle of randomness."
My Jetta had the same problem before. Sure, the car is also quite eye-catching .
Basically, this can happen to anyone. Not just for fleet vehicles, like at Göttmann.

Hi,
Does this statistically distributed recall also affect EU 3 vehicles?
Will the target and actual values of the air mass be checked?
Subsequently, if necessary, disassemble the hardware to check, for example, the continuity of the EGR pipe to the intake manifold?
I am sorry, I cannot translate that word because it is not a recognized word in any language I know. It may be a misspelling, a made-up word, or a word from a language I am not familiar with.

According to what criteria were these 5 vehicles selected?

The examiner has requested to re-examine these five vehicles.

I can't tell you what criteria are behind it.
However, I assume that vehicles with particularly conspicuous features, where 'irregularities' are suspected, are preferentially selected. The vehicles we have inspected here are a mixed bunch, covering everything. Vehicles that were also subject to approval according to StVZO §19 para. 6, and therefore were test vehicles of a vehicle manufacturer.
In principle, it can affect all vehicles that require a vehicle inspection (HU). No matter how old!
Whether dismantling is permitted or not will likely follow the same rules as a vehicle inspection (HU). Only if there is suspicion will the vehicle be taken out of service, and dismantling by the owner will be requested at their expense for the purpose of gathering evidence. However, I have never personally experienced this, nor have I ever heard of it happening. Retroactive decommissioning is, however, already in place.
However, if someone completely removes their EGR system, anyone can see that. Sorry, but there are definitely more subtle methods.


Here's another thing... With EU4 vehicles, the race officials can now read various data through the OBD2 interface. This includes things like emissions monitoring and the VIN. In theory, it should even be possible to detect chip tuning. That is probably more difficult than the high-ranking officials imagine...

"Now I understand! Our service vehicles are inspected for both emissions and overall functionality by our own qualified engineers. To my knowledge, since September, four out of our nine service vehicles have been requested for re-inspection." Among them are two vehicles equipped with special signaling systems and advertising wraps.

goettmann wrote:

By the way... With EU4 vehicles, the race officials can and are allowed to read various data via the OBD2 interface. Among other things, this includes

emission control and the VIN.

Quote:

Interesting! Given the general "cut costs no matter what" policy, I'm surprised that money is being spent (on devices for detecting violations and training for the operators) for such small-scale projects... unless, of course, there's suddenly a perceived huge risk to the public, or unless there's a belief that the revenue from caught drivers/owners will be high enough to make the whole thing profitable. Do you happen to know which federal states are already using this in real-world applications? ;)Theoretically, it should even be possible to detect chip tuning. That is probably more difficult than the high-ranking officials imagine...

Well, the standard diagnosis provides a checksum in a module, which changes with every tuning.
So, if during a check, something different appears compared to the original software, it is often worth having the dataset analyzed.

In cases of legitimate doubts regarding the traffic and operational safety, including noise and exhaust emissions, every state's police law (regardless of the measures regulated by the Code of Criminal Procedure) provides the legal possibility to have a vehicle secured for inspection by qualified experts. However, I generally do not attribute the ability to recognize details that go beyond what even technically untrained individuals can perceive to police officers who are not specifically trained. A technically inclined layperson might notice worn tires, a missing muffler, or faulty lights. I believe it is impossible to analyze a vehicle using OBD in a way that produces legally admissible results.

However, both the Brandenburg and Berlin police forces have their own specialists. These specialists are either trained in-house or recently recruited from universities. The subsequent court proceedings rely on the findings of the expert assessments, because we are no longer dealing with minor offenses.

I believe it is quite bold to request vehicles for re-inspection without specific reasons. Let's see why our company vehicles should be presented again...

Given the general 'cut costs no matter what' policy, I'm surprised that money is being spent (on selection devices and training courses for the operators) for such small-scale projects...


He must replace 'soll' with 'muss', and your (unasked) question answers itself.

The OBD2 capability is specifically designed for this purpose, and law enforcement agencies will likely need to hire specialized personnel to handle it over time. It all depends on an EU directive that needs to be implemented in the individual countries (whether it will be implemented is another matter).


Do you happen to know which federal states are already using this in real-world applications?


Please direct this question to the state ministries of the interior. If you get an answer, you're lucky...

I am familiar with Berlin, Brandenburg, and North Rhine-Westphalia. To my knowledge, other countries are also in the process of increasing their military capabilities.
However, there are also investigators from other EU countries present. In Sweden, I was accompanied from a police checkpoint to a well-equipped technical center. They attempted to extract data from the vehicle... have fun with that. Unfortunately, the appraiser could not find any data in his vehicle database...

Well, the standard diagnosis, depending on the MSG/data status in a control module, outputs a kind of checksum that changes with every tuning.


'Clever programmers should know this and should actually be able to program it.' Unfortunately, I'm not very knowledgeable about software development...



It really depends on how it's done. I completely removed the EGR system from my ARL. And believe me, unless someone is really looking closely and has a good understanding of engines, they won't notice. I only worked with original parts and parts that look like original parts.

That may be, but whoever wants to completely remove their EGR system, like the original poster (TO), should not be surprised if the stamp suddenly disappears from the NS (engine control unit) ....




... I generally do not attribute the ability to recognize details that go beyond what even technically untrained individuals can perceive to police officers who have not received specific training.
...


Be careful... I am particularly aware that, especially in North Rhine-Westphalia, law enforcement officers have been technically trained to detect manipulations. Then, very quickly, one can declare 'suspicion of manipulation' and justify the involvement of an expert for assessment.


I believe it is impossible to analyze a vehicle's data via OBD in a way that would be admissible as evidence in court.


However, it is possible, and it is already being done.


...because we are no longer talking about minor offenses.


Right... just like the expansion of the agricultural sector. This could even be considered tax evasion (due to the change in emission class).


I believe it is quite bold to request vehicles for re-inspection without specific reasons. Let's see why our company vehicles should be inspected again...

If there is suspicion of 'tampered with vehicle inspection reports,' the vehicle can easily be brought in for a re-inspection. In extreme cases, even by court order!
It is also possible to carry out a repeat inspection 'just like that' for quality control purposes of the inspection services. However, one must anticipate that vehicle owners may be accommodating. If they refuse, then that is their right. He only makes himself look more suspicious by doing that.

I believe these vehicles were brought back for demonstration specifically because of the Q-monitoring requirements. Since we have an engineer who is 'close' to us (meaning he performs all the inspections for us), there's a (more or less) justified suspicion of 'rigging' or 'manipulation.' I can understand that.
There are enough 'black sheep' among the examiners. Apparently, they are trying to ruin this particular one's career. The efforts being made are significant.

goettmann wrote:

There are enough "black sheep" among the examiners. This one is supposed to be "taken down." The efforts in that regard are significant.

[Irony]. . . because one almost daily reads about countless deaths attributed to brake failure or similar issues in moving wrecks with a recent German technical inspection (HU/AU) sticker [/Irony]

IMO, there are areas where, with the same amount of effort, significantly greater damage to the public could be averted .

Brandenburg only trains a small portion of its officers for general police duties. The aim is to reduce the gap between specialists within the force and external experts who are sometimes brought in. They cannot close that gap.

The purpose of this "technical training" is to be able to identify serious technical defects in common motor vehicles. By "common," we mean vehicles produced in series without major modifications or alterations. Even aftermarket additions like LPG conversion systems deviate from the standard and are difficult to assess accurately. The focus of this training will vary depending on the area of activity, covering passenger cars, trucks and buses, or two-wheeled vehicles. No one can know and judge everything.

When it comes to modifications made to vehicles, it depends on where and to what extent the changes were made, and whether or not they are visible, and if so, how. Modifications to the chassis or body, different tires, or add-on parts are visible. Accurately assessing the validity of the modifications found requires a certain level of expertise. Not every registration is legally valid, and conversely, not every modification needs to be inspected and registered. Changes made covertly are currently difficult to find, even for trained personnel, and even more difficult to assess accurately, especially on roads.

Furthermore, the likelihood of encountering otherwise inconspicuous but still tampered-with vehicles during random roadside inspections is very low. Therefore, I believe that efforts to make the vehicle inspection (HU) more comprehensive and to delve deeper into the hidden details of the vehicle being inspected are more likely to be successful. The HU must be applied to every vehicle. If you don't get caught during random police checks or otherwise draw attention to yourself, you're essentially untraceable.

Targeted checks with different objectives are already being carried out by the police in Brandenburg and Berlin. The main targets are usually trucks and buses (technical condition, driving and rest times, etc.), motorcycles (technical modifications, tampering, etc.), and scooters or 50cc motorcycles (technical condition, tampering, etc.). So, anyone who isn't driving a heavily modified car or whose driving style is conspicuous (due to suspected drunk driving or drug use) can go two years without being stopped.

We observe:

The engine cover must be designed and attached in such a way that neither the greasy fingers of a technician nor those of any other person can access the hardware. The best thing would be a perforated metal sheet covering the entire engine compartment .

2. The OBD port needs to be installed in the vehicle (if it hasn't already been installed for anti-theft purposes), and I don't care what anyone says about where it should be located; my car is mine, and so are the data from its control unit.
At the usual location, there's also an OBD socket, but it's "slightly" differently wired, so the "Wachtelmeister" (a made-up title) can reconsider whether he really wants to plug his interface into it after being informed and signing something. You can't just plug everything into every socket, where would we end up!

I would assume that a vehicle prepared in such a way would immediately raise suspicion and be temporarily seized. It would then be given to an expert for examination, and you would be unable to use it until a decision is made, especially since no positive results can be obtained from it.
If there is a reasonable suspicion of manipulation.
Then let's get started with perforated metal .
The vehicle is being "identified".

You are right, I will leave everything as it is, otherwise I might be shot on the spot, and my family would have to pay for the bullets.

Regarding our armored vehicles: The vehicles have been upgraded. Whatever the reason...