Catalytic converter/centre muffler — BMW 3 Series E46

BMW exploded parts diagram 18_0452 (18 Exhaust system) for the BMW 3 Series E46. ETK list captured for some variants on this drawing; parts we can identify for the others.

Parts on this diagram

BMW lists these parts for the models shown. Check with your VIN before ordering.

• 1 · 18 10 7 521 833 — Exhaust pipes with primary silencer
• 1 · 18 10 7 525 548 — Exhaust pipes with primary silencer
• 1 · 18 30 7 525 549 — RP catalytic converter w/centre silencer EU2
• 1 · 18 30 7 525 551 — RP catalytic converter w/centre silencer EU3
• 1 · 18 30 7 510 680 — RP catalytic converter w/centre silencer EU4
• 1 · 18 30 7 523 730 — RP catalytic converter w/centre silencer EU4
• 1 · 18 30 7 507 799 — RP catalytic converter w/centre silencer EU4
• 2 · 18 30 7 506 779 — Gasket
• 2 · 18 30 7 522 480 — Flat gasket
• 3 · 18 30 1 737 774 — Hex nut M10
• 4 · 18 30 7 560 777 — Clamping bush D=60 x 70mm
• 5 · 18 30 7 522 209 — Vibration absorber 143 Hz
• 5 · 18 30 7 528 391 — Vibration absorber 150 Hz
• 6 · 18 40 7 540 023 — Collar screw M8x70
• 7 · 18 21 1 436 309 — Connecting support
• 8 · 18 21 1 437 236 — Rubber mounting
• 9 · 07 14 3 413 174 — Flange nut M8
• 10 · 07 11 9 905 529 — Hex Bolt with washer M8x18-U1-8.8

Diagram © BMW AG as printed on the drawing. Reproduced for part identification. OEM Diagrams is independent of BMW AG, MINI and Rolls-Royce Motor Cars.