Retrofit particulate filter E46-M47 — a genuine BMW part, number 18 10 0 413 056. The number stamped on the part is 18100413056; BMW's catalog files it under the short number 0413056. You will find it on our Exhaust shelf, under Catalytic converter/front silencer. BMW has since replaced it with 0413058.
It fits every E46 body style (318d, 318td, 320d and 320td, 1998–2004), with the M47 or M47N engines.
BMW draws it on 3 diagrams, among them Retrofit diesel particulate f., non-cont (18_0663) and Repair kit, flextube (18_1031). It weighs about 6.5 kg (14 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.