ADAC and TÜV Reliability index

Last update 09. 01. 2025

Reliability according to ADAC

The ADAC breakdown statistics determine which cars are the most reliable and which have broken down most – a good help when buying a used car.

The ADAC Reliability Index for 2024 evaluates 156 models of around 20 car brands between three and ten years old, of which at least 7,000 were registered in Germany in some period between 2014 and 2021. The ADAC Reliability Index is calculated from the number of roadside assistance per 1,000 registered vehicles.

We have sorted the available data by brand and model. Choose the carmaker you are interested in.

Reliability by Make

Source: ADAC

Vehicle reliability according to TÜV Report

The ranking of car reliability according to the German organization TÜV is also a good guide when buying a used car. The TÜV Report includes the results of almost 10,2 million technical inspections in Germany. In addition to the percentage of failed attempts, it also monitors the average mileage. It says nothing about the care and maintenance that owners give to their cars. We have added a link to known recalls for each evaluated car.