
TÜVs (Technischer Überwachungs-Verein), short for Technical Inspection Association in English, is a German quality and safety approval body. For ease of typing on a standard UK keyboard, I am ignoring the umlaut German vowels. In Germany, all registered vehicles must go through regular vehicle inspection to assess their road worthiness. Else the vehicle cannot be insured. It is not exactly similar to UK's MOT, or Singapore's LTA inspection, and certainly not like our Puspakom, in a sense that it is a lot more strict. It shares more similarity to Japan's Shaken inspection, which is probably among the most strict AND costly compulsory vehicle inspection. Depending on the vehicle age, German vehicle inspection intervals vary between 2 to 3 years. TUV, along with DEKRA are among the main bodies authorised by the German goverment to carry out vehicle inspections. It is so strict that minor rust spots are sufficient grounds to fail an inspection.

Each year, in partnership with Autobild, Germany's most influential automotive publication, TUV releases an annual TUV Report which shows results of average number of problems detected in any particular vehicle model of cars inspected by the body. It is by far one of the most reliable vehicle dependability data and is used as a main reference for German used car buyers.
Between June 2009 to July 2010, TÜV analysed 7,253,709 mandatory vehicle inspections. Out of these, the Toyota Prius was found to have the least defects, followed Mazda2, Smart fortwo, Porsche 911 all tied in second place.
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Top 10 most reliable cars.

Porsche should be commended for being the only supercar brand to make it to the top-10 most reliable list. It further reinforces the perception that the Porsche 911 is the only supercar that you can use daily. It is if I may put it, the present day interpretation of the Honda NSX, the most usable supercar. It may not have the flair and charisma of a Ferrari or a Lamborghini, but it more than makes up for it by never letting you down / stuck. Like how actor Hugh Grant found out when his brand new Ferrari California broke down on the A256 motorway in UK.


Bottom 10 least reliable cars. Populated by the usual suspects. Avoid anything French or Italian.

Prius referred to here is the second generation model.

Mazda2
The top scores achieved by the Toyota Prius should bury any further doubts on reliability of hybrids. Another pleasant surprise is the Mazda2. In fact, Mazda has more cars in the the top-10 most reliable list than other Japanese big names like Honda, or even Nissan. Both the MX-5 and Premacy consistenly appear among the top-10 in all vehicle age categories. Mazda's achievement is even more astounding once you realise that the Mazda2 is the cheapest car in the top-10 list (starting at around 12,000 Euros). Plus, there was a clear year-year improvement in the quality of the Mazda2. The little 2 was ranked 9th, 6th and jumping to 2nd spot in the 6-7 years old, 4-5 years old and 2-3 years old category respectively.
The Honda was only represented twice in the top-10 list, by the Honda Jazz and Honda CR-V, only in the 6-7 years old and 8-9 years old category. Mazda was represented 7 times in all 5 categories by 3 models while Toyota had 17 representations by 6 models in all 5 categories.
The most unreliable car of all - the Kia Carnival (known to Malaysian users as the Naza Ria), both the the first and second generation models included. Much have been said about how the current offerings from Kia boasts of quality that rival the Japanese. Well, as far as TUV is concerned. That's not translated to the Carnival. To be fair, the Carnival, even in the current second generation guise, is quite an old model, the last of the traditional Kias, that was developed by the Kia of old rather than the current rejuvenated Kia.


The Mercedes M-class is not only the most unreliable Mercedes, but is also the most unreliable SUV in the German market.

But as we have always said, when it comes to hard data, the data is only as good as the person who reads it. The TUV report only shows defects uncovered during mandatory vehicle inspection. It does not consider repairs made earlier, warranty claims, recalls etc etc. So this could only mean either one or a combination of the possibilities listed below :
a) Toyota cars are built very well
b) Toyota owners are very meticulous in their vehicle maintenance
c) Toyota service centers are excellent
Without looking into greater detail, we will leave it with a simple conclusion - that if you are in Germany and are in the market for a used car, your best bet is a Toyota Prius or a Mazda2.
Another highly ranked Toyota model is the Toyota Corolla Verso. While the Corolla mentioned in the 6-7 years old category is similar to the Japanese market Corolla, which was briefly sold in Singapore. Germany's largest car maker VW Group managed to get its Golf Plus (not available locally although VGM sold a small number of pre-owned units briefly), Polo and Audi A8 to the list. Clearly behind Toyota but it is clear that gradual imporvements have been made, especially amongst VW Group MPVs like the Sharan and Seat Alhambra which are featured at the bottom of the list, but only in the 6 years and above categories.
When asked about vehicle quality / reliability related data, most people think about JD Power IQS. However, we have
previously explained why we think there are some flaws with the JD Power methodology. First being the conflict of interest because JD Power is on the payroll of car manufacturers. We are not implying that the results are rigged, but rather, the survey methodologies are tailored to the needs of car manufacturers rather than the needs of consumers. Secondly, JD Power IQS surveys owners of new cars less than 90 days old (manufacturers more interested in how their new cars fare than their discontinued models). Just what sort of problems does JD Power hope to uncover from 90 day old cars? Thirdly, subjective items like the driver control interface (i.e. i-Drive), small of cupholders are considered as "problems" alongside objective quality issues like engine / electrical faults encountered.
Because of the short period of ownership, JD Power's IQS tells us almost nothing about the long term reliability of cars and is not very helpful for the used car buyer (or even a brand new car buyer!). JD Power has tried to address these criticism with the Vehicle Owners Satisfaction Survey (VOSS) and Vehicle Dependability Survey (VDS). But these are not available in ASEAN bloc, neither is it available in all EU markets. TUV on the other hand, is not paid by car manufacturers but by actual car owners, hence its impartiality.

Oddly, in the 2010 JD Power Germany Vehicle Ownership Satisfaction Study (VOSS), the Dacia Logan was ranked as the 2nd most reliable car in the small car segment. In the TUV report however, it is ranked at the bottom 6 least reliable car. So this could mean either one or a combination of the following conclusions:
a) Dacia Logans are very unreliable once the mileage piles on
b) Dacia Logans lead a very hard life
c) Dacia owners don't care much about their cars
d) JD Power's results are rubbish
In the US, the Kia Sedona (as the Carnival is called in US) was ranked second for 2007 JD Power IQS van category. Go figure on the huge discrepencies. The cars may not be made in the same plant but if a manufacturer allows any of its plants to have such wide discrepencies in their quality between one plant to another, surely it can't be a very good car, irrespective of where the car is assembled in. That, or sometimes the owners may not be the best person to answer questions on whether are there any defects in their cars, probably out of ignorance. This is because JD Power compiles survey responses from vehicle owners while TUV Report is the vehicle of vehicle inspections. Or as we have explained earlier, the period of ownership is just too short for any serious issues to crop up.
The full TUV report can be obtained
here. For more information on the Toyota Prius in Malaysia visit
www.toyota.com.my. For info on the Mazda2, available in both hatchback and sedan form, visit
www.mazda.com.my