Today I found this behing the air filter box, struggle a little to put it out but is out. Anyone know where is this from?


Rear? This is was behind the engine, behinf the air filter box. The internet just related this to c3 engine guard, but the car as the same motor I guess.PaulC5 wrote: 15 Oct 2025, 11:57 Possibly the soundproofing on the bulkhead. But maybe the previous owner put it there for extra soundproofing if they went to the bother of the rear sound box.