Ready for the test, in the fast lane: With our App for Android
Get the Führerschein-bestehen.de App with our explanations and the official catalogue of questions.
Get it on Google Play
Sick of ads!?
Log in now and continue studying with no ads!
Fully equipped for exam preparation:
All of the questions from the driving test in all translations
All of the questions from the theory test, in many languages
Exam simulations and special questionnaires
Exam simulations and special questionnaires
Explanations for all Class A and B questions
Explanations for all car and motorcycle questions
Certified by Trusted Shops
Certified by Trusted Shops
Can be used on all devices (desktop, tablet, smartphone)
Can be used on all devices
Try it for free!

The explanatory texts for the questions were machine translated. More info

All explanatory texts were compiled in German and then machine translated. This may result in translation errors. However, this only refers to the explanations to the questions. The translations of the questionnaires were done by TÜV | DEKRA arge tp 21 and are exactly the same as the translations in the theory test. These translations are only available once you are logged in. All other translations on the website were done by a different translation agency.
Display explanatory texts in original (German)
Diese Frage ist seit 01.10.2022 nicht mehr im Fragenkatalog enthalten und wird auch nicht mehr geprüft.
Kategorie
Umweltschutz
Stoffgebiet Grundstoff, Mofa
Error points 3

Frage-Nr.: 1.5.01-008
An einem Fahrzeug sind Motor und Schalldämpfer „frisiert“. Welche Folgen kann das haben?

Der Schadstoffausstoß wird größer
Engine settings and exhaust system are optimally coordinated by the manufacturer. So you can reach while driving and low fuel consumption and low pollution. If you change the settings or convert parts of the exhaust system, there is a risk of increased pollutant emissions, as the settings in the vehicle are no longer matched.
Der Kraftstoffverbrauch sinkt erheblich
If I myself am able to significantly reduce fuel consumption through changes to the exhaust system or the engine, then the manufacturer probably can. He would have certainly done it to sell his vehicles better. It is therefore very unlikely that I can significantly reduce fuel consumption through conversions.
Die Lärmbelästigung nimmt zu
The manufacturer has used appropriate parts that have been approved by the Federal Motor Transport Authority and thus also comply with the standards for noise protection. Therefore only approved parts should be used. In no case may one modify the parts installed by the manufacturer or install others, because then possibly the standards for the noise protection are exceeded.

Prüfungsreif auf der Überholspur!

Register now to see the questions in your choice of 12 languages.

Sign up

Do you like our explanations?
You will be amazed by our online learning system that helps you prepare for your driving test! Learn all the answers for the theory test online and pass on your first try.
Test now
Ready for the test in the fast lane: The study App with our explanations!

Get it on Google Play


Download the ad-freeFührerschein-bestehen.de App for your smartphone or tablet and study with help from our explanations and the official catalogue of questions.