How big is a yellow sack spider

Bizarre recall: When the yellow sac spider nests in the tank

The yellow bag spider is harmless to humans, but it can be a threat to cars - at least if it is an American-made Mazda6. The arachnids feel right at home in its tank and clog the ventilation line with their living nets. In extreme cases, this can cause the pressure in the tank to rise so high that cracks form.

According to the US traffic safety authority NHTSA, Mazda has registered nine such cases in the past few months - reason enough to call around 42,000 units of the mid-range sedan (model years 2010 to 2012) to the workshop. An effective remedy against the sack spider defects should finally be found there.

There was a similar recall back in 2011; At that time, 65,000 Mazda6 were affected worldwide. At that time, the manufacturer had attached a cover to the tank ventilation, which was supposed to effectively prevent the arachnids from entering.

Later, the engine control was also reprogrammed on new cars in order to prevent negative pressure in the tank in the future - but not on vehicles that had already been delivered. And it is precisely these models that are now affected by the second spider recall.

Car-loving spiders are rare in Germany

Apparently, particularly smart or small specimens of the spider still manage to get into the tank despite the changed ventilation opening. Now the software update should ensure that it at least no longer causes damage.

What exactly attracts the spiders to the Mazda6 is a mystery. It is known that the animals like the smell of hydrocarbons - including petrol. Similar problems are not known from other manufacturers.

During the initial recall, a Mazda engineer suspected that the spiders would appreciate the sound of the 2.5-liter four-cylinder engine. However, this type of engine is also relatively common among the competition.

Whatever the reason for the special relationship between Mazda6 and the yellow sack spider (Cheiracanthium), German drivers don't have to worry. The special car-loving type has not yet become noticeable in Germany. However, the related thorn fingers are known.