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Change Car Timing Belt Kit

Very technical 4h00–10h00 ~400–1000£
Estimated time 4h00–10h00
Estimated labour cost ~400–1000£
Difficulty Very technical
Vehicles
A3 I 1997-2003 25
  • 1.6 Petrol (AEH)
  • 1.6 Petrol (AKL)
  • 1.6 Petrol (APF)
  • 1.6 Petrol (AVU)
  • 1.6 Petrol (BFQ)
  • 1.8 20V Petrol (AGN)
  • 1.8 20V Petrol (APG)
  • 1.8 20V Turbo Petrol (AGU)
  • 1.8 20V Turbo Petrol (AJQ)
  • 1.8 20V Turbo Petrol (APP)
  • 1.8 20V Turbo Petrol (AQA)
  • 1.8 20V Turbo Petrol (ARX)
  • 1.8 20V Turbo Petrol (ARY)
  • 1.8 20V Turbo Petrol (ARZ)
  • 1.8 20V Turbo Petrol (AUM)
  • 1.8 20V Turbo Petrol (AUQ)
  • 1.9 TDI Diesel (AGR)
  • 1.9 TDI Diesel (AHF)
  • 1.9 TDI Diesel (ALH)
  • 1.9 TDI Diesel (ASV)
  • 1.9 TDI Diesel (ASZ)
  • 1.9 TDI Diesel (ATD)
  • 1.9 TDI Diesel (AXR)
  • S3 (1.8 20V Turbo) Petrol (AMK)
  • S3 (1.8 20V Turbo) Petrol (BAM)
A3 II 2003-2013 36
  • 1.6 8V E-Power Bioethanol (E85),Petrol (CMXA)
  • 1.6 8V Petrol (BGU)
  • 1.6 8V Petrol (BSE)
  • 1.6 8V Petrol (CCSA)
  • 1.6 TDI Diesel (CAYB)
  • 1.6 TDI Diesel (CAYC)
  • 1.9 TDI 8V Diesel (BKC)
  • 1.9 TDI 8V Diesel (BXE)
  • 1.9 TDI 8V DPF Diesel (BLS)
  • 2.0 FSi 16V Petrol (AXW)
  • 2.0 FSi 16V Petrol (BLR)
  • 2.0 FSi 16V Petrol (BLX)
  • 2.0 FSi 16V Petrol (BLY)
  • 2.0 FSi 16V Petrol (BMB)
  • 2.0 FSi 16V Petrol (BVY)
  • 2.0 FSi 16V Petrol (BVZ)
  • 2.0 TDI 16V Diesel (AZV)
  • 2.0 TDI 16V Diesel (BKD)
  • 2.0 TDI 16V DPF Diesel (BMN)
  • 2.0 TDI 16V DPF Diesel (BUY)
  • 2.0 TDI 8V DPF Diesel (BMM)
  • 2.0 TDI Diesel (CBAA)
  • 2.0 TDI Diesel (CBAB)
  • 2.0 TDI Diesel (CBBB)
  • 2.0 TDI Diesel (CFFA)
  • 2.0 TDI Diesel (CFFB)
  • 2.0 TDI Diesel (CFGB)
  • 2.0 TFSI Petrol (AXX)
  • 2.0 TFSI Petrol (BPY)
  • 2.0 TFSI Petrol (BWA)
  • 2.0 TFSI Petrol (CAWB)
  • 2.0 TFSI Petrol (CCZA)
  • S3 (2.0 TFSI) Petrol (BHZ)
  • S3 (2.0 TFSI) Petrol (BZC)
  • S3 (2.0 TFSI) Petrol (CDLA)
  • S3 (2.0 TFSI) Petrol (CDLC)
A3 III 2013-2020 37
  • 1.0 TFSI Petrol (CHZD)
  • 1.2 TFSI Petrol (CJZA)
  • 1.2 TFSI Petrol (CYVB)
  • 1.4 TFSI CNG CNG,Petrol (CPWA)
  • 1.4 TFSI e-tron Electricity,Petrol (CUKB+EAHA)
  • 1.4 TFSI Petrol (CMBA)
  • 1.4 TFSI Petrol (CPTA)
  • 1.4 TFSI Petrol (CXSA)
  • 1.4 TFSI Petrol (CXSB)
  • 1.4 TFSI Petrol (CZCA)
  • 1.4 TFSI Petrol (CZCC)
  • 1.4 TFSI Petrol (CZEA)
  • 1.6 TDI Diesel (CLHA)
  • 1.6 TDI Diesel (CRKB)
  • 1.6 TDI Diesel (CXXB)
  • 1.6 TDI Diesel (DBKA)
  • 1.6 TDI Diesel (DDYA)
  • 2.0 TDI Diesel (CRBC)
  • 2.0 TDI Diesel (CRBD)
  • 2.0 TDI Diesel (CRFC)
  • 2.0 TDI Diesel (CRLB)
  • 2.0 TDI Diesel (CRLC)
  • 2.0 TDI Diesel (CRUA)
  • 2.0 TDI Diesel (CUNA)
  • 2.0 TDI Diesel (DBGA)
  • 2.0 TDI Diesel (DCYA)
  • 2.0 TDI Diesel (DEJA)
  • 2.0 TDI Diesel (DEJB)
  • 2.0 TDI Diesel (DGCA)
  • 30 g-tron CNG (DHFA)
  • 30 TDI Diesel (DGTE)
  • 30 TFSI Petrol (DKRF)
  • 35 TDI Diesel (DFGA)
  • 35 TFSI Petrol (DADA)
  • 35 TFSI Petrol (DPCA)
  • 40 e-tron Electricity,Petrol (DGEA+EAHA)
  • 40 TDI Diesel (DJGA)
A3 IV 2020-2025 12
  • 30 eTFSI 48V (MHEV),Petrol (DLAA)
  • 30 TDI Diesel (DSUD)
  • 30 TDI Diesel (DTRB)
  • 30 TDI Diesel (DTRD)
  • 35 eTFSI 48V (MHEV),Petrol (DFYA)
  • 35 TDI Diesel (DSRB)
  • 35 TDI Diesel (DTSA)
  • 35 TDI Diesel (DTSB)
  • 35 TFSI Petrol (DPCA)
  • 40 TDI Diesel (DTUA)
  • 40 TFSI e Electricity,Petrol (DGEA+EANA)
  • 45 TFSI e Electricity,Petrol (DGEA+EANA)
Renew the timing belt 4h00–10h00
Renew the timing belt kit 4h00–13h00
Renew the timing belt kit and the coolant pump 5h00–11h00
Renew the timing belt ( - 2005) 5h00
Renew the timing belt With diesel particulate filter 5h00
Renew the timing belt (2006 - ) 5h00
Renew the timing belt kit CBAB 7h00
Renew the timing belt kit BKD 8h00

What is the function of a Audi A3 timing belt?

The timing belt synchronises the rotation of the camshaft(s) with the crankshaft, ensuring that the inlet and exhaust valves open and close at precisely the right moment. It may also drive other components such as the high-pressure fuel pump or the water pump.

When should you change the Audi A3 timing belt?

The replacement interval varies greatly between manufacturers, typically between 60,000 and 240,000 km or 4 to 10 years, whichever comes first. Always respect the time-based interval even if the mileage has not been reached.

What happens if the Audi A3 timing belt breaks?

On interference engines (the vast majority of modern engines), a broken timing belt causes the pistons to strike the open valves, resulting in bent valves, damaged pistons, and potentially a destroyed engine. Repair costs can reach several thousand euros. Preventive replacement is critical.

Is it difficult to change the Audi A3 timing belt?

Difficulty level 5/5: very technical, requiring specialist tools (crankshaft and camshaft locking tools specific to your engine, tensioner tools, torque wrench) and precise knowledge of timing marks. Incorrect installation can cause severe engine damage. Recommended for experienced mechanics only.

4 models covered

Model Year Range Engines covered Fuel
A3 I 1997-2003 1997-2003 1.6 Petrol (AEH), 1.6 Petrol (AKL), 1.6 Petrol (APF), 1.6 Petrol (AVU), 1.6 Petrol (BFQ), 1.8 20V Petrol (AGN), 1.8 20V Petrol (APG), 1.8 20V Turbo Petrol (AGU), 1.8 20V Turbo Petrol (AJQ), 1.8 20V Turbo Petrol (APP), 1.8 20V Turbo Petrol (AQA), 1.8 20V Turbo Petrol (ARX), 1.8 2… Diesel, Petrol
A3 II 2003-2013 2003-2013 1.2 TFSI Petrol (CBZB), 1.4 TFSI Petrol (CAXC), 1.6 8V E-Power Bioethanol (E85),Petrol (CMXA), 1.6 8V Petrol (BGU), 1.6 8V Petrol (BSE), 1.6 8V Petrol (CCSA), 1.6 FSi 16V Petrol (BAG), 1.6 FSi 16V Petrol (BLF), 1.6 FSi 16V Petrol (BLP), 1.6 TDI Diesel (CAYB), 1.6 TDI Diesel (CAY… Bioethanol (E85), Diesel, Petrol
A3 III 2013-2020 2013-2020 1.0 TFSI Petrol (CHZD), 1.2 TFSI Petrol (CJZA), 1.2 TFSI Petrol (CYVB), 1.4 TFSI CNG CNG,Petrol (CPWA), 1.4 TFSI e-tron Electricity,Petrol (CUKB+EAHA), 1.4 TFSI Petrol (CMBA), 1.4 TFSI Petrol (CPTA), 1.4 TFSI Petrol (CXSA), 1.4 TFSI Petrol (CXSB), 1.4 TFSI Petrol (CZCA), 1.4 TFS… CNG, Diesel, Electricity, Petrol
A3 IV 2020-2025 2020-2025 30 eTFSI 48V (MHEV),Petrol (DLAA), 30 TDI Diesel (DSUD), 30 TDI Diesel (DTRB), 30 TDI Diesel (DTRD), 35 eTFSI 48V (MHEV),Petrol (DFYA), 35 TDI Diesel (DSRB), 35 TDI Diesel (DTSA), 35 TDI Diesel (DTSB), 35 TFSI Petrol (DPCA), 40 TDI Diesel (DTUA), 40 TFSI e Electricity,Petrol (DG… 48V (MHEV), Diesel, Electricity, Petrol