hi
there is an insulating mat on top of the rear side on engine compartment
after 40 years it is almost disintegrated and not only the appearance is bad, but also any work inside the engine, affecting that area will mean a sort of "sand" falling over all your neat jobs
so fed up with this, i decided to stop it installing a new part:
remove, it breaks easily
bmw reference
it is an exact part, auto adhesive
metal brush and steel wool with gasoline to remove fragments, and prepare surface
there is an insulating mat on top of the rear side on engine compartment
after 40 years it is almost disintegrated and not only the appearance is bad, but also any work inside the engine, affecting that area will mean a sort of "sand" falling over all your neat jobs
so fed up with this, i decided to stop it installing a new part:
remove, it breaks easily
bmw reference
it is an exact part, auto adhesive
metal brush and steel wool with gasoline to remove fragments, and prepare surface