@pskoda
To je vse še stari P 308, ki res ni bil pretirano zanesljiv.
V čem je težava vsaj malo pobrskat po forumu? O ADAC-ovih statistikah je bilo že ogromno govora, npr
tu in še marsikje (tudi v tej temi - strani okoli 25 in še kje), zato o tem preberite tam.
Njihova
metodologija ni ravno pojem kredibilnosti oz objektivnosti, samo "njihova" bi morda še šla (ISO ipd), a za globalno sliko pri teh statistikah ni zajetih ogromno število avtov - ker ADAC enostavno ne upošteva nobene ne-ADAC-ove intervencije (zavarovalnice, asistence posameznih znamk, asistence servisnih mrež itd ipd). Resda izključi tudi svoje pogodbene intervence za (nekatere) asistence, a to ne velja za lastne (oz ne-ADAC-ove) asistence posameznih znamk, ki so seveda predvsem nemške. In tu je ogromno nemcev z okvarami, ki jih v ADAC-ovi statistiki enostavno ni.
Tako na koncu ne dobimo statistike pokvarljivosti avtov ampak statistiko kvalitete servisnih uslug na cesti - po znamkah. Če komu ni jasno, da so tu nemški avti povprečno v ogromni prednosti, mu pač ni pomoči. (hint - Kakšna je asistenca Dacie v primerjavi z VAG-ino v Nemčiji?)
Seveda bi to Milan takoj vedel/našel, če bi le malo preverjal/poiskal, a le zakaj. Raje naivno verjet v objektivnost o "golih dejstvih/podatkih" ter pri tem še zavajat druge (Nemci so pač prebrisani). Razumevanje je kdaj bolj zahtevno...
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Za silo prevod o metodologiji (v ang., v slo. je preslab)
Methodology & Background
Fundamentals of evaluations in the ADAC breakdown statistics
The ADAC road patrol drivers detect any breakdown assistance electronically and store them in a database. Be registered, inter alia, type, year of registration, engine type, mileage, the defective component and the error cause. These data also help in future margins, to find the causes more quickly and fix it. The body shape and Drive (z. B. wagon or coupe, front- or all-wheel drive) are not critical to the cause of breakdowns and are not covered. Different types that are based on a common technology, are summarized (z. B. VW Golf / Jetta).
The ADAC breakdown statistics published until 2013 for car models of the first six registration years. This gives the driver control (eg maintenance) should be hidden on the technical condition of the vehicle as possible. Any defects found were attributable to the manufacturer as a rule. The thus exerted media pressure on manufacturers for product improvement has led to a positive development for capital margins since the breakdown statistics. The number of breakdowns has fallen from about 23 (1978) to less than 3 (2013) per 1,000 vehicles.
Due to the low margins figures in the first two years of operation and the decline for motorists financial risk due to the longer warranty periods differentiation in the first years of operation has become less meaningful. The breakdown indicators often differ only in the second or third decimal place.
For this reason, and because the vehicles in Germany are living longer on average, since the breakdown statistics 2014, the focus is placed on the admission years three to ten. Although, the influence to the corresponding vehicle Care and Maintenance. On the other hand it makes for a used car buyer is not the decisive difference why a possible glitch arises - the importance of information about typical and potential weaknesses of a model. And here is the breakdown statistics valuable information.
Moreover, this increases the number of considered in the statistical breakdown cases; the influence of the assistance cases decreases, the possibility of differentiation between the models and registration years increases.
As a further measure the breakdown figures are published instead of the note symbols previously used to increase transparency. On the establishment of a ranking list will be omitted. In order to continue to guarantee a quick overview of good and less good vehicle models, the margins Key figures per year are highlighted in color, from green = very few mishaps until red = very many mishaps.
The data base for the breakdown statistics broken down as follows
Basically. Cases in which the ADAC was called because a vehicle, for example in emergency mode could still go to the shop, do not appear in the statistics.
Steps in the generation of the final data base for the breakdown statistics:
1. In addition to the 1,800 ADAC road patrol drivers also around 1,000 road service partners provide breakdown assistance on behalf of the club. The latter make a detailed record, may therefore contribute to the statistic data.
2.
Any manufacturer or importer has its own "Assistance" of services,
some of them provides the ADAC commissioned. To avoid distortion of the statistics and establish a tie, the Assistance cases must be disregarded.
3. Self-inflicted mishaps (z. B. for lack of fuel) or tire defects are not included.
4. The breakdown statistics includes only models of the third to the tenth year of approval.
5. The models must have a minimum of 10,000 approvals in 7000 and in at least one further year (at EZ 1 to 10 years ago) in one year.
Out of the total number of reported mishaps a representative data base is determined:
3940048 margins insgesamt2.446.227 margins ADAC road patrol (see 1.) 2198899 margins without assistance and nonmembers cases (see 2.) 1,473,058 margins without excess debt (see 3) 495 664 margins to 3rd-10th Admission year (see point 4) 434 593 Breakdown by ADAC criteria (see 5.)
Certification and third party testing
The breakdown statistics has been certified since 2006 according to ISO 9001: 2000 and since 2013 according to ISO 9001: 2008. Every three years this place an appropriate auditing by the internationally recognized certification body SGS. Annually in between there is a re-certification and an internal audit.
In addition, the calculation method has been verified by a scientific opinion of professors from the Universities of Twente and Groningen before this publication and describes the approach and the results for valid.
Frequently Asked Questions
How do you determine which field gets what color?
The colors are provided to assist in order to capture the results faster and are fixed by Erstzulassungsjahren (columns!) Always receive the lowest 15% a dark green color, the worst 5% a red coloration. In between, the three colors are light green, yellow and orange distributed so that the distances are equal.
Why are not filled all the fields?
There are only displayed values, when at least 7,000 vehicles were registered at the beginning of the examined year. This prevents outliers distort the image.
Why the model "xy" is missing?
It only models are displayed, which contain more than 10,000 vehicles registered in at least one of the reported years.
What margins are included?
Only technical glitches that have been handled by the ADAC. That is about 50% of all breakdowns occurring in Germany. The real breakdown probabilities are therefore higher. To compare the punctures of models, however, the database of the ADAC is perfectly adequate and the largest of its kind.
Why the data for Erstzulassungsjahre the first two years are not displayed?
The breakdown probability in the first two years after the approval of a vehicle is so low that the values that could calculate the ADAC here are not meaningful and reliable enough. Accordingly, these figures are not published.
How to calculate the average annual mileage?
The average annual mileage will be calculated as the average of all considered in the breakdown statistics vehicles. The ADAC recorded at every breakdown the mileage of the vehicle. As a rule, young vehicles are little more emotional, because they are then often used for official.
Why were also older models considered up to 10 years?
With this expansion of the ADAC also offers the used car buyer who is interested in an older model, a decision-making basis for puncture resistance. The average passenger vehicle age in Germany is what is thus taken into account in about 9 years. In even older vehicles, however, the number of models that are at least 7,000 times approved is very low, which is why older vehicle vintages are currently not reported.