Change Car Rear Silencer Mazda 323
Change Car Rear Silencer
| Estimated time | 0h45–1h30 |
|---|---|
| Estimated labour cost | ~75–150£ |
| Difficulty | Easy |
| Vehicles |
323 Mk VI 1989-1994 7
323 Mk VII 1994-1999 2
323 Mk VIII 1998-2004 6
|
| Repair the silencer* | 1h30 |
| Remove/refit the front silencer | 0h45 |
| Renew the front silencer | 0h45–1h00 |
| Repair the front silencer | 0h30 |
| Align the front silencer | 0h30–0h30 |
| Remove/refit the main silencer | 0h45 |
| Renew the main silencer | 1h00 |
| Repair the main silencer | 0h30 |
| Align the main silencer | 0h30 |
| Difficult main silencer removal* | 0h30 |
| Remove/refit the rear silencer | 0h45–1h00 |
| Renew the rear silencer | 0h45–1h30 |
| Repair the rear silencer | 0h30 |
| Weld a sheet-metal repair panel onto the rear silencer* | 0h30–0h45 |
| Difficult rear silencer removal | 0h30 |
| Remove/refit the rear silencer trim | 0h30 |
| Renew the rear silencer trim | 0h30 |
| Remove/refit the exhaust pipe bracket | 0h30 |
| Renew the exhaust pipe bracket | 0h30 |
| Repair the front silencer* | 1h30 |
| Align the front silencer* | 0h30 |
| Align the main silencer* | 0h30 |
| Difficult rear silencer removal* | 0h30 |
| Remove/refit the silencer | 0h45 |
| Renew the silencer | 0h45 |
What is a Mazda 323 rear silencer?
The rear silencer (also called the back box or rear muffler) reduces exhaust noise to an acceptable level. It is located at the end of the exhaust line, after the catalytic converter, particulate filter (if fitted), and sometimes an intermediate silencer.
When should you change the Mazda 323 rear silencer?
No periodic replacement interval is specified. Carry out regular visual inspections for corrosion, holes, and deteriorated mounting rubbers. Signs that replacement is needed: louder exhaust noise, rattling from loose baffles, visible rust holes, exhaust fumes entering the cabin, or failure at the MOT/roadworthiness test.
Is it difficult to change the Mazda 323 rear silencer?
Difficulty level 2/5: technically easy but may require effort if bolts and clamps are rusted. Key steps: raise the vehicle, apply penetrating oil to clamp bolts, remove the clamp connecting the silencer to the intermediate pipe, remove the mounting rubber hangers, fit the new silencer with new gasket/clamp, reattach mounting rubbers, check for leaks with engine running.
7 models covered
| Model | Year Range | Engines covered | Fuel |
|---|---|---|---|
| 323 Mk III 1977-1986 | 1977-1986 | 1.5 Petrol (D5) | Petrol |
| 323 MK IV 1980-1984 | 1980-1984 | 1.3 Petrol (E3), 1.5 Petrol (E5) | Petrol |
| 323 Mk V 1985-1993 | 1985-1993 | 1.3i 8V Petrol (B3), 1.5 8V Petrol (B5), 1.5 8V Petrol (E5), 1.6 8V Petrol (B6), 1.6i 16V Turbo Petrol (B6), 1.6i 8V GT Petrol (B6) | Petrol |
| 323 Mk V 1985-1995 | 1985-1995 | 1.5 8V Petrol (B5), 1.5 8V Petrol (E5), 1.6 8V Petrol (B6) | Petrol |
| 323 Mk VI 1989-1994 | 1989-1994 | 1.3i 16V Petrol (B3), 1.3i 8V Petrol (B3E), 1.6i 16V Petrol (B6), 1.6i 8V Petrol (B6E), 1.8i 16V kat. Petrol (BP (DOHC)), 1.8i 16V Petrol (BP (DOHC)), 1.8i 16V Petrol (BPE) | Petrol |
| 323 Mk VII 1994-1999 | 1994-1999 | 1.5 16V Petrol (Z5), 1.8 16V Petrol (BP) | Petrol |
| 323 Mk VIII 1998-2004 | 1998-2004 | 1.3 16V Petrol (B3), 1.6 16V Petrol (ZM), 1.8 16V Petrol (FP), 1.8 16V Petrol (FP), 2.0 16V Petrol (FS), 2.0 DiTD Diesel (RF) | Diesel, Petrol |
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