Four Rings to Rule Them All – German Federal Court of Justice Finds Trademark Infringement in Radiator Grille with Audi-Logo-Shaped Mounting Fixture

If you picture an Audi, you likely imagine some type of car with four interlocking rings on the radiator grille [a symbol of the merger of the four automobile manufacturers Audi, DKW, Horch and Wanderer in 1932]. It is thus safe to assume that a radiator grille built for an Audi is expected to have a space where the four-ring shaped logo can be fitted. Spare part manufacturers who thought that, say, a four-ring shaped space is ideally suited to be fitted with a four-ring shaped logo, have just been told by the German Federal Court of Justice to try harder, as the shape of the mounting fixture can amount to trademark infringement (case I ZR 61/18). 

The Case

This story, like so many stories that have shaped trademark law in recent times, starts on Ebay. The Defendant was selling a radiator grille for the Audi A6. The radiator grille was sold without the four-ring Audi logo (protected by the EU trademark 000018762), but with a mounting fixture intended to receive this logo. 
Audi's EU trademark 000018762

The fixture on the Ebay page looked like this: 

The product actually delivered looked like this: 

Upon being contacted by Audi, the seller signed a cease-and-desist declaration, by which it undertook not to distribute this grille in the future. However, the seller apparently refused to disclose its sales figures or any other information that Audi could have used to calculate its claim to financial compensation. Audi thus successfully sued the seller for infringement both in first and second instance. The seller then appealed to the Federal Court of Justice. 

The seller argued, among other things, that Audi could not enforce its rights when the use of its trade mark is necessary to indicate the intended purpose of a product or service "in particular as accessories or spare parts" (now Art. 14(1)(c) EUTMR). 

First, the Federal Court of Justice explicitly acknowledges that the four-ring shape on the radiator grille is similar to Audi’s trade mark and that it serves as a mounting fixture of the Audi logo. 

Once the grille is on the car, the "sign similar to Audi's trade mark" in the middle of the grille is understood an indication of the origin of the car and the radiator grille. But how is the sign understood prior to being fixed on the car? The Federal Court of Justice assumes that customers see in the mounting fixture both an indication of the grille’s intended purpose, and an indication of the grille’s origin. 

The radiator grille is a spare part for the trade mark owner’s products. As such, the trade mark owner’s right to prevent the use of its trade mark on the grille is limited by Art. 14(1)(c) EUTMR, which applies where the use of the trade mark is "necessary" and " the use made by the third party is in accordance with honest practices in industrial or commercial matters" (Art. 14(2) EUTMR). 

Thus, whether a specific use is covered by the exception under Art. 14(1)(c) EUTMR depends upon whether the use is necessary to indicate the intended purpose of the product or service. The specific use must represent the “only possible means of providing the public with comprehensible and complete information on the intended purpose of the goods or service”. Any other way of communicating the same information to the public must be practically excluded (see CJEU C-63/97, para. 60 – BMW/Deenik). 

In the Court’s view, 
“there are means other than the use of the logo on the radiator grille to inform the targeted public that this is a spare part for the applicant’s vehicles. For example, the defendant could have said so in the text of the Internet offer or […] included this information in the text of the delivery note”
The purpose of Art. 14 EUTMR is to create a balance between the interest of trade mark owners, on the one hand, and the public interest in the free movement of goods and services in the EU, on the other hand. This provision prevents the trade mark owner from securing an exclusive position on the spare parts market while, at the same time, preventing third party manufacturers of spare parts from unduly profiting on the basis of the goodwill of the manufacturer’s trade mark. 

Customers expect that the spare part of a third-party manufacturer will look the same as those made by the original equipment manufacturer. Thus, a radiator grille for an Audi must have a space where the Audi logo can be affixed. However, in the case at hand, the appellant has not argued that the specific form of the mounting fixture is necessary to make look the radiator grille identical to a grille manufactured by Audi. The Audi logo could therefore be affixed onto a mounting fixture that does not look like the four-ring emblem. 


Whether the specific form of the mounting fixture is “necessary” to indicate the intended purpose of the radiator grille is a question of fact, which had already been decided by the lower court in the negative. The appellant could not dispute this finding, since questions of fact are in principle excluded from the review of the Federal Court of Justice. Once the finding was made that the form of the mounting fixture was not “necessary”, the case became very difficult to win for the spare part manufacturer. 

Another aspect of the case is, however, more surprising. The Court had no hesitation in finding that the general public would see the shape of the mounting fixture (also) as an indication of the origin of the radiator grille. But is this actually correct? 

The EU General Court has recently ruled that the relevant public purchases spare parts for goods in classes 7 and 12 with a level of attention that is higher than average, “even if spare parts are priced relatively modestly” (T-792/17 – MAN/EUIPO). Consumers and professionals shopping for automobile spare parts are very much aware of the fact that some spare parts are manufactured by the brand owner, whereas other (often cheaper) spare parts are manufactured by third parties. This information can be (and often is) conveyed through the description of the product that is accessible prior to the purchase. 

Since, as the Court acknowledges, Audi owners expect their radiator grille to be fitted with some mounting fixture for the Audi logo, they likely understand that the form of the mounting device should closely resemble the Audi logo. It is doubtful whether a purchaser with a higher-than-average degree of attention would draw any conclusions from the shape of the mounting fixture – even less so if the mounting fixture is similar, but not identical, to the Audi logo.
Four Rings to Rule Them All – German Federal Court of Justice Finds Trademark Infringement in Radiator Grille with Audi-Logo-Shaped Mounting Fixture Four Rings to Rule Them All – German Federal Court of Justice Finds Trademark Infringement in Radiator Grille with Audi-Logo-Shaped Mounting Fixture Reviewed by Peter Ling on Tuesday, August 20, 2019 Rating: 5


  1. Could you please provide the reasoning why the lower court did not consider the mounting fixture as “necessary”. I find this point particlarly difficult to follow as spare parts usually resemble or ar identical to the original parts.

    1. You could, for example, provide four small screw points or a set of flat surfaces for adhesion (or however the actual logo is mounted) that do not themselves resemble the four rings. Hence building the appearance of four rings into the grill is not necessary.

  2. If only the VW subsidiary could be as supercilious in achieving emissions standards as it is in protecting its brand...

    The brand "Audi" is itself a trademark circumvention. Founder August Horch had lost the rights to his own name when he was forced out of the first company he founded. "Audi" is the literal Latin translation of the imperative "Horch" (="Hear!", in modern German "Hör!")

    Just checked EBAY US and DE. There are plenty of offers for radiator grilles with a full logo, some of them purporting to be genuine parts, or with a cutout in the style of exhibit of the case. Some sellers mask or blur the logo. A few grilles are plain.

    I would have never thunk there was so much business in peddling Audi radiator grilles, but Ingolstadt does sell 1.9 million of their guzzlers every year, which yields some opportunities.

  3. I have not read the decision of the lower court, but the finding that a fixture in the form of the Audi logo is not "necessary" to inform the buyer about the destination of the product seems arguable to me - the same can indeed be conveyed easily in the product description and without using the four rings.
    With regard to the practical "necessity" of a given form (so that the spare part looks like an original spare part once the logo is fixed), the decision mentions in para. 45 that appellant has not argued that such practical necessity existed. The court thus assumed that alternative forms were possible and did not examine this question any further.


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