Did Audi vehicles produced in 2020 still contain asphalt?
4 Answers
2020 Audi models did contain asphalt. Additional information is as follows: Asphalt sound insulation layer: The 2019 Audi models were still using asphalt sound insulation layers, which can emit irritating odors, especially during hot summer months when the odors become particularly strong. The asphalt layer becomes visible after completely removing the Audi's seats and interior trim. Asphalt damping plates: Asphalt damping plates are essential components in automobiles. In fact, there's no need for significant prejudice against asphalt damping plates - almost all household vehicles use them to some extent. The main functions of asphalt damping plates are vibration reduction, sound insulation, and increasing the strength of vehicle body steel plates. Since body panels like roofs are actually quite thin, asphalt damping sheets are placed in between to increase rigidity.
I bought my Audi A4L in 2019 and specifically researched this when picking up the car. The 2020 Audi models no longer use traditional asphalt damping sheets; they've been replaced with new eco-friendly materials in areas like the center console and chassis. The butyl rubber material they use now is soft like chewed gum, completely eliminating the pungent smell found in older models. When inspecting a car, I recommend lifting the floor mats to feel the firewall area—eco-friendly materials are light-colored and elastic. If you're still concerned, here's a down-to-earth method: on a hot day, leave the car in direct sunlight for two hours before getting in to check for odors. If asphalt is present, you'll notice a distinct tar-like smell—my old Passat had this issue.
Last week I accompanied my cousin to inspect a 2020 Q5, with special attention paid to the asphalt issue. Nowadays Audi's entire lineup uses LASD liquid damping adhesive - those gray coatings on the underbody are actually water-based acrylic resin. The dealership guy even bent a piece to show me - this material has excellent flexibility and is fire-resistant. Here's a little-known fact: China's GB/T 27630-201X standard requires in-car benzene content not to exceed 0.06mg/m³, which asphalt can't possibly pass. Pro tip: After removing the seat plastic film from a new car, turn on the heater for 30 minutes and test the B-pillar air vent with a formaldehyde detector. If it meets standards, you're basically good to go.
Mom is most concerned about toxic substances in the car, so she specifically checked Audi Germany's TÜV certification documents. In 2020, Audi's dashboard sound insulation material was all polypropylene double-sided fleece, and the damping sheets were also replaced with modified elastomers. However, be aware that some aftermarket modifications might use asphalt-based vibration damping panels—for example, I've seen unscrupulous audio shops install those smelly materials inside door panels. It's safest to keep the car in its original factory condition. If modifications are necessary, insist on the technician using butyl rubber materials.
