Just a very quick one, whilst removing some brake fliud from the resevoir i took the cap off, pulled out the filter type part (like a sieve) and it had a black rubber part lying in it (not the rubber washer) - unfortunately it is now lost under the engine somewhere and i can't find it. Ive been to the dealer they cant identify the part - does anyone know what it is and what it does? DO i need a new one????


Thanks.