Change Car Rear Silencer Kia Optima

Change Car Rear Silencer

Easy 0h30–1h30 ~50–150£
Estimated time 0h30–1h30
Estimated labour cost ~50–150£
Difficulty Easy
Repair the silencer* 1h30
Remove/refit the front silencer 0h45
Renew the front silencer 0h45
Repair the front silencer* 1h30
Align the front silencer* 0h30
Repair the main silencer 0h30
Align the main silencer* 0h30
Difficult main silencer removal* 0h30
Remove/refit the rear silencer 0h30–0h45
Renew the rear silencer 0h30–0h45
Repair the rear silencer 0h30
Weld a sheet-metal repair panel onto the rear silencer* 0h45
Difficult rear silencer removal* 0h30
Repair the main silencer* 1h30
Repair the rear silencer* 1h30
Remove/refit the silencer 0h30
Renew the silencer 0h30
Renew the centre silencer 0h45
Remove/refit the centre silencer 0h45

What is a Kia Optima 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 Kia Optima 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 Kia Optima 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.

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View your Optima maintenance plan (keep the Optima token) →

3 models covered

Model Year Range Engines covered Fuel
Optima 2001-2006 2001-2006 2.5 V6 Petrol (G6BV) Petrol
Optima 2010-2015 2010-2015 1.7 CRDi Diesel (D4FD), 2.0 CVVL Petrol (G4ND), 2.0 CVVT Hybrid Electricity,Petrol (G4NE), 2.0 CVVT Petrol (G4KD) Diesel, Electricity, Petrol
Optima 2015-2025 2015-2025 1.6 CRDi Diesel (D4FE), 1.6 T-GDi Petrol (G4FJ), 1.7 CRDi Diesel (D4FD), 2.0 CVVL Petrol (G4ND), 2.0 GDi PHEV Electricity,Petrol (G4NG), 2.0 T-GDi Petrol (G4KH), 2.4 MPI Petrol (G4KE) Diesel, Electricity, Petrol

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View the service schedule for your Optima →