Promo banner

Change Car Rear Silencer

Easy 0h45–2h00 ~75–200£
Estimated time 0h45–2h00
Estimated labour cost ~75–200£
Difficulty Easy
Vehicles
A8 1994-2003 7
  • 2.8 V6 30V Petrol (AMX)
  • 3.3 V8 TDI Diesel (AKF)
  • 3.7 V8 40V Petrol (AKC)
  • 4.2 V8 40V Petrol (AUW)
  • 4.2 V8 40V Petrol (AVN)
  • 6.0 W12 Petrol (AZC)
  • S8 (4.2 V8 40V) Petrol (AVP)
A8 2003-2010 12
  • 2.8 FSi Petrol (BDX)
  • 3.0 V6 Petrol (ASN)
  • 3.0 V6 TDI Diesel (ASB)
  • 3.0 V6 TDI Diesel (BNG)
  • 3.2 FSI Petrol (BPK)
  • 3.7 V8 Petrol (BFL)
  • 4.0 V8 TDI Diesel (ASE)
  • 4.2 V8 Petrol (BFM)
  • 4.2 V8 Petrol (BVJ)
  • 4.2 V8 TDI Diesel (BVN)
  • 6.0 W12 Petrol (BHT)
  • S8 (5.2 V10 FSi) Petrol (BSM)
A8 2010-2018 21
  • 2.0 TFSI Hybrid Electricity,Petrol (CHJA+EAFA)
  • 3.0 TDI Diesel (CDTA)
  • 3.0 TDI Diesel (CDTB)
  • 3.0 TDI Diesel (CLAB)
  • 3.0 TDI Diesel (CMHA)
  • 3.0 TDI Diesel (CTBA)
  • 3.0 TDI Diesel (CTBB)
  • 3.0 TDI Diesel (CTBD)
  • 3.0 TFSI Petrol (CGWA)
  • 3.0 TFSI Petrol (CREA)
  • 3.0 TFSI Petrol (CREC)
  • 4.0 TFSI Petrol (CEUA)
  • 4.0 TFSI Petrol (CTGA)
  • 4.2 FSi Petrol (CDRA)
  • 4.2 TDI Diesel (CDSB)
  • 4.2 TDI Diesel (CTEC)
  • 6.3 W12 Petrol (CEJA)
  • 6.3 W12 Petrol (CTNA)
  • S8 (4.0 TFSI) Petrol (CGTA)
  • S8 (4.0 TFSI) Petrol (CTFA)
  • S8 (4.0 TFSI) Petrol (DDTA)
A8 2018-2025 7
  • 50 TDI Diesel (DDVC)
  • 50 TDI MHEV Diesel (DMGK)
  • 55 TFSI Petrol (CZSE)
  • 60 FSi Petrol (CXYA)
  • 60 TDI Diesel (CVXB)
  • 60 TFSI e Electricity,Petrol (CZSE)
  • S8 (4.0 V8 TFSI) MHEV Petrol (CWWB)
Remove/refit the silencer 0h45–1h30
Renew the silencer 0h45–1h30
Repair the silencer* 1h30
Repair the front silencer* 1h30
Align the front silencer* 0h30
Remove/refit the main silencer 1h30–2h00
Renew the main silencer 1h30–2h00
Remove/refit both centre silencers 2h00
Renew both centre silencers 1h30
Repair the main silencer 0h30–0h45
Align the main silencer 0h30
Difficult main silencer removal* 0h30
Remove/refit the rear silencer 0h45–2h00
Renew the rear silencer 0h45–2h00
Remove/refit the rear left silencer 0h45–2h00
Renew the rear left silencer 0h45–2h00
Remove/refit the rear right silencer 0h45–2h00
Renew the rear right silencer 0h45–2h00
Repair the rear silencer 0h30
Weld a sheet-metal repair panel onto the rear silencer 0h30
Difficult rear silencer removal 0h30
Remove/refit the rear silencer trim 0h30
Renew the rear silencer trim 0h30
Remove/refit both rear silencer trims 0h30
Renew both rear silencer trims 0h30
Repair the main silencer* 1h30
Align the main silencer* 0h30
Repair the rear silencer* 1h30
Weld a sheet-metal repair panel onto the rear silencer* 0h45
Difficult rear silencer removal* 0h30
Remove/refit both silencers 2h00
Renew both silencers 2h00
Remove/refit the front silencer 1h30–3h00
Renew the front silencer 1h30–2h30
Renew the front and centre silencers 2h00
Remove/refit the front and centre silencers 2h00
Renew the front, centre and rear silencers 2h00
Remove/refit the front, centre and rear silencers 2h00
Remove/refit both rear silencers 0h45–1h30
Renew both rear silencers 0h45–1h30
Renew the centre silencer 1h30
Remove/refit the centre silencer 1h30
Remove/refit the front silencer (follow-up work) 3h00
Renew the front left silencer 2h30
Remove/refit the front left silencer 2h30
Renew the front right silencer 2h00
Remove/refit the front right silencer 2h00
Remove/refit both front silencers 3h00

What is a Audi A8 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 Audi A8 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 Audi A8 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.

4 models covered

Model Year Range Engines covered Fuel
A8 1994-2003 1994-2003 2.8 V6 30V Petrol (AMX), 3.3 V8 TDI Diesel (AKF), 3.7 V8 40V Petrol (AKC), 4.2 V8 40V Petrol (AUW), 4.2 V8 40V Petrol (AVN), 6.0 W12 Petrol (AZC), S8 (4.2 V8 40V) Petrol (AVP) Diesel, Petrol
A8 2003-2010 2003-2010 2.8 FSi Petrol (BDX), 3.0 V6 Petrol (ASN), 3.0 V6 TDI Diesel (ASB), 3.0 V6 TDI Diesel (BNG), 3.2 FSI Petrol (BPK), 3.7 V8 Petrol (BFL), 4.0 V8 TDI Diesel (ASE), 4.2 V8 Petrol (BFM), 4.2 V8 Petrol (BVJ), 4.2 V8 TDI Diesel (BVN), 6.0 W12 Petrol (BHT), S8 (5.2 V10 FSi) Petrol (BSM) Diesel, Petrol
A8 2010-2018 2010-2018 2.0 TFSI Hybrid Electricity,Petrol (CHJA+EAFA), 2.0 TFSI Petrol (CYPA), 3.0 TDI Diesel (CDTA), 3.0 TDI Diesel (CDTB), 3.0 TDI Diesel (CLAB), 3.0 TDI Diesel (CMHA), 3.0 TDI Diesel (CTBA), 3.0 TDI Diesel (CTBB), 3.0 TDI Diesel (CTBD), 3.0 TFSI Petrol (CGWA), 3.0 TFSI Petrol (CREA)… Diesel, Electricity, Petrol
A8 2018-2025 2018-2025 50 TDI Diesel (DDVC), 50 TDI MHEV Diesel (DMGK), 55 TFSI Petrol (CZSE), 60 FSi Petrol (CXYA), 60 TDI Diesel (CVXB), 60 TFSI e Electricity,Petrol (CZSE), S8 (4.0 V8 TFSI) MHEV Petrol (CWWB) Diesel, Electricity, Petrol