Change Car Rear Silencer Mercedes-Benz A-Class

Change Car Rear Silencer

Easy 0h45–3h00 ~75–300£
Estimated time 0h45–3h00
Estimated labour cost ~75–300£
Difficulty Easy
Remove/refit the silencer 0h45–3h00
Renew the silencer 0h45–3h00
Repair the silencer* 1h30
Repair the front silencer* 1h30
Align the front silencer* 0h30
Remove/refit the main silencer 1h30
Renew the main silencer 1h30
Repair the main silencer* 1h30
Align the main silencer* 0h30
Difficult main silencer removal* 0h30
Remove/refit the rear silencer 1h00–1h30
Repair the rear silencer 0h30
Weld a sheet-metal repair panel onto the rear silencer* 0h45
Difficult rear silencer removal* 0h30
Renew the rear silencer 1h00–1h30
Remove/refit both centre silencers 1h30
Renew both centre silencers 1h30
Repair the main silencer 0h30
Repair the rear silencer* 1h30
Remove/refit the rear left silencer trim 0h30
Renew the rear left silencer trim 0h30
Remove/refit the rear right silencer trim 0h30
Renew the rear right silencer trim 0h30
Remove/refit both rear silencer trims 0h45
Renew both rear silencer trims 0h45
Renew the centre silencer 1h30
Remove/refit the centre silencer 1h30

What is a Mercedes-Benz A-Class 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 Mercedes-Benz A-Class 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 Mercedes-Benz A-Class 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 A-Class maintenance plan (keep the A-Class token) →

4 models covered

Model Year Range Engines covered Fuel
A-Class 1998-2005 1998-2005 140, -L, -LPG LPG,Petrol (166.940), 140, -L, -LPG LPG,Petrol (166.960), 160 CDI Diesel (668.940), 160 CDI Diesel (668.941), 160, -L, -LPG LPG,Petrol (166.960), 170 CDI Diesel (668.940), 170 CDI, -L Diesel (668.942), 190, -L, -LPG LPG,Petrol (166.990), 210 Evolution, -L, LPG LPG,… Diesel, LPG, Petrol
A-Class 2005-2012 2005-2012 150, -LPG LPG,Petrol (266.920), 160 CDI Diesel (640.942), 170, -LPG LPG,Petrol (266.940), 180 BlueEFF, -LPG LPG,Petrol (266.940), 180 CDI Diesel (640.940), 200 CDI Diesel (640.941), 200 Turbo Petrol (266.980), 200, -LPG LPG,Petrol (266.960) Diesel, LPG, Petrol
A-Class 2012-2018 2012-2018 160 CDI Diesel (607.951 (K9K)), 160 Petrol (270.910), 180 CDI Diesel (607.951 (K9K)), 180 CDI Diesel (651.901), 180 Petrol (270.910), 200 CDI Diesel (651.901), 200 CDI, -4MATIC Diesel (651.930), 200 Petrol (270.910), 220 4MATIC Petrol (270.920), 220 CDI, -4MATIC Diesel (651.930)… Diesel, Petrol
A-Class 2018-2025 2018-2025 160 Petrol (282.914), 160d Diesel (608.915), 180 48V (MHEV),Petrol (282.814), 180 Petrol (282.914), 180d Diesel (608.915 (K9K)), 180d Diesel (654.920), 200 48V (MHEV),Petrol (282.814), 200, -4MATIC Petrol (282.914), 200, -4MATIC Petrol (282.914), 200d Diesel (654.920), 220, -4MA… 48V (MHEV), Diesel, Electricity, Petrol

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View the service schedule for your A-Class →