Change Car Battery Audi A4

Change Car Battery

Very easy 0h30–1h30 ~50–150£
Estimated time 0h30–1h30
Estimated labour cost ~50–150£
Difficulty Very easy
Vehicles
A4 1995-2002 37
  • 1.6 Petrol (ADP)
  • 1.6 Petrol (AHL)
  • 1.6 Petrol (ALZ)
  • 1.6 Petrol (ANA)
  • 1.8 20V Petrol (ADR)
  • 1.8 20V Petrol (AFY)
  • 1.8 20V Petrol (APT)
  • 1.8 20V Petrol (ARG)
  • 1.8 20V Petrol (AVV)
  • 1.8 20V Turbo Petrol (AEB)
  • 1.8 20V Turbo Petrol (AJL)
  • 1.8 20V Turbo Petrol (ANB)
  • 1.8 20V Turbo Petrol (APU)
  • 1.8 20V Turbo Petrol (ARK)
  • 1.8 20V Turbo Petrol (AWT)
  • 1.9 TDI Diesel (1Z)
  • 1.9 TDI Diesel (AFF)
  • 1.9 TDI Diesel (AFN)
  • 1.9 TDI Diesel (AHH)
  • 1.9 TDI Diesel (AHU)
  • 1.9 TDI Diesel (ATJ)
  • 1.9 TDI Diesel (AVG)
  • 2.4 V6 30V Petrol (AGA)
  • 2.4 V6 30V Petrol (ALF)
  • 2.4 V6 30V Petrol (AML)
  • 2.4 V6 30V Petrol (AMM)
  • 2.4 V6 30V Petrol (APS)
  • 2.4 V6 30V Petrol (ARJ)
  • 2.6 V6 Petrol (ABC)
  • 2.8 V6 30V Petrol (ACK)
  • 2.8 V6 30V Petrol (ALG)
  • 2.8 V6 30V Petrol (AMX)
  • 2.8 V6 30V Petrol (APR)
  • 2.8 V6 30V Petrol (AQD)
  • RS4 (2.7 V6) Petrol (ASJ)
  • RS4 (2.7 V6) Petrol (AZR)
  • S4 (2.7 V6) Petrol (AZB)
A4 2001-2005 24
  • 1.6 8V Petrol (ALZ)
  • 1.8 20V Turbo Petrol (AMB)
  • 1.8 20V Turbo Petrol (AVJ)
  • 1.8 20V Turbo Petrol (BEX)
  • 1.8 20V Turbo, -Cabriolet Petrol (BFB)
  • 1.9 TDI Diesel (AVB)
  • 1.9 TDI Diesel (AVF)
  • 1.9 TDI Diesel (AWX)
  • 1.9 TDI Diesel (BKE)
  • 2.0 20V, -Cabriolet Petrol (ALT)
  • 2.0 FSi Petrol (AWA)
  • 2.4 V6 30V, -Cabriolet Petrol (AMM)
  • 2.4 V6 30V, -Cabriolet Petrol (BDV)
  • 2.5 TDI V6 Diesel (AKE)
  • 2.5 TDI V6 Diesel (AYM)
  • 2.5 TDI V6 Diesel (BAU)
  • 2.5 TDI V6 Diesel (BDH)
  • 2.5 TDI V6, -Cabriolet Diesel (BCZ)
  • 2.5 TDI V6, -Cabriolet Diesel (BDG)
  • 2.5 TDI V6, -Cabriolet Diesel (BFC)
  • 3.0 V6 30V Petrol (AVK)
  • 3.0 V6 30V, -Cabriolet Petrol (ASN)
  • 3.0 V6 30V, -Cabriolet Petrol (BBJ)
  • S4 (4.2 V8), -Cabriolet Petrol (BBK)
A4 2005-2009 31
  • 1.6 8V Petrol (ALZ)
  • 1.8 20V Turbo, -Cabriolet Petrol (BFB)
  • 1.9 TDI Diesel (BKE)
  • 1.9 TDI DPF Diesel (BRB)
  • 2.0 20V Petrol (ALT)
  • 2.0 TDI 8V DPF Cabriolet Diesel (BRC)
  • 2.0 TDI 8V DPF, -Cabriolet Diesel (BPW)
  • 2.0 TDI Diesel (BLB)
  • 2.0 TDI Diesel (BNA)
  • 2.0 TDI Diesel (BVG)
  • 2.0 TDI DPF Diesel (BRD)
  • 2.0 TDI DPF Diesel (BRE)
  • 2.0 TDI DPF Diesel (BRF)
  • 2.0 TDI DPF Diesel (BVA)
  • 2.0 TDI DPF Diesel (BVF)
  • 2.0 TFSI Petrol (BGB)
  • 2.0 TFSI Petrol (BPG)
  • 2.0 TFSI Petrol (BPJ)
  • 2.0 TFSI Petrol (BUL)
  • 2.0 TFSI, -Cabriolet Petrol (BWE)
  • 2.0 TFSI, -Cabriolet Petrol (BWT)
  • 2.5 TDI V6 Diesel (BDG)
  • 2.7 TDI V6 DPF Diesel (BSG)
  • 2.7 TDI V6 DPF, -Cabriolet Diesel (BPP)
  • 3.0 TDI V6, -Cabriolet Diesel (ASB)
  • 3.0 TDI V6, -Cabriolet Diesel (BKN)
  • 3.0 V6 30V Petrol (BBJ)
  • 3.2 V6 FSi Petrol (BKH)
  • 3.2 V6 FSi, -Cabriolet Petrol (AUK)
  • RS4 (4.2 V8) Petrol (BNS)
  • S4 (4.2 V8) Petrol (BBK)
A4 2007-2015 43
  • 1.8 TFSI Petrol (CABA)
  • 1.8 TFSI Petrol (CABB)
  • 1.8 TFSI Petrol (CDHA)
  • 1.8 TFSI Petrol (CDHB)
  • 1.8 TFSI Petrol (CJEB)
  • 2.0 TDI Diesel (CAGA)
  • 2.0 TDI Diesel (CAGB)
  • 2.0 TDI Diesel (CAGC)
  • 2.0 TDI Diesel (CAHA)
  • 2.0 TDI Diesel (CAHB)
  • 2.0 TDI Diesel (CGLC)
  • 2.0 TDI Diesel (CGLD)
  • 2.0 TDI Diesel (CJCA)
  • 2.0 TDI Diesel (CJCB)
  • 2.0 TDI Diesel (CJCC)
  • 2.0 TDI Diesel (CJCD)
  • 2.0 TDI Diesel (CNHA)
  • 2.0 TDI Diesel (CNHC)
  • 2.0 TDI Diesel (CSUA)
  • 2.0 TDI Diesel (CSUB)
  • 2.0 TFSI Bioethanol (E85),Petrol (CFKA)
  • 2.0 TFSI Petrol (CDNB)
  • 2.0 TFSI Petrol (CDNC)
  • 2.0 TFSI Petrol (CNCD)
  • 2.7 V6 TDI Diesel (CAMA)
  • 2.7 V6 TDI Diesel (CAMB)
  • 2.7 V6 TDI Diesel (CGKA)
  • 2.7 V6 TDI Diesel (CGKB)
  • 3.0 TDI Diesel (CAPA)
  • 3.0 TDI Diesel (CCLA)
  • 3.0 TDI Diesel (CCWA)
  • 3.0 TDI Diesel (CCWB)
  • 3.0 TDI Diesel (CDUC)
  • 3.0 TDI Diesel (CKVB)
  • 3.0 TDI Diesel (CKVC)
  • 3.0 TDI Diesel (CLAB)
  • 3.0 TFSI Petrol (CMUA)
  • 3.0 TFSI Petrol (CRED)
  • 3.2 V6 FSi Petrol (CALA)
  • RS4 (4.2 TFSI) Petrol (CFSA)
  • S4 (3.0 TFSI) Petrol (CAKA)
  • S4 (3.0 TFSI) Petrol (CGWC)
  • S4 (3.0 TFSI) Petrol (CREC)
A4 2016-2025 30
  • 1.4 TFSI Petrol (CVNA)
  • 2.0 G-tron CNG (CVLA)
  • 2.0 TDI Diesel (DETA)
  • 2.0 TDI Diesel (DETB)
  • 2.0 TDI Diesel (DEUA)
  • 2.0 TDI Diesel (DEUB)
  • 2.0 TDI Diesel (DEUC)
  • 2.0 TFSI MHEV 48V (MHEV),Petrol (DDWA)
  • 2.0 TFSI MHEV 48V (MHEV),Petrol (DEMA)
  • 2.0 TFSI Petrol (CVKB)
  • 2.0 TFSI Petrol (CYRB)
  • 2.0 TFSI Petrol (CYRC)
  • 3.0 TDI Diesel (CRTC)
  • 3.0 TDI Diesel (CSWB)
  • 3.0 TDI Diesel (DCPC)
  • 30 TDI MHEV 48V (MHEV),Diesel (DTNB)
  • 30 TDI MHEV Diesel (DEZB)
  • 35 TDI MHEV 48V (MHEV),Diesel (DTNA)
  • 35 TDI MHEV Diesel (DEZE)
  • 35 TFSI MHEV 48V (MHEV),Petrol (DLVB)
  • 35 TFSI MHEV 48V (MHEV),Petrol (DMSB)
  • 40 TDI MHEV Diesel (DTPA)
  • 40 TFSI MHEV 48V (MHEV),Petrol (DLVA)
  • 40 TFSI, MHEV 48V (MHEV),Petrol (DMSA)
  • 45 TDI Diesel (DCPE)
  • 45 TFSI MHEV 48V (MHEV),Petrol (DKNA)
  • 45 TFSI MHEV 48V (MHEV),Petrol (DMTA)
  • RS4 (2.9 FSi) Petrol (DECA)
  • S4 (3.0 TDI) 48V (MHEV),Diesel (DEWB)
  • S4 (3.0 TFSI) Petrol (CWGD)
Renew the battery Saloon 0h45–1h00
Renew the battery 0h45–1h30

What is the role of the battery in a Audi A4?

The battery is primarily used to start the engine and to power electrical equipment when the engine is off. When the engine is running, the alternator provides the energy needed by the various electrical systems. During this operating phase, the battery stores electrical energy in chemical form. This energy is released as electrical current when the engine is switched off again.

What are the different types of Audi A4 battery?

There are three main types of lead/acid battery:

  • Open battery: Designed for older vehicles with reduced electrical/electronic equipment and without Stop and Start. Requires regular electrolyte level checks.
  • EFB battery (Enhanced Flooded Battery): An improved open battery with reduced water loss. Suitable for simple Stop and Start systems. Maintenance-free.
  • AGM battery (Absorbent Glass Mat): Sealed battery with excellent charge/discharge and vibration resistance. Suitable for Stop and Start with regenerative braking. Maintenance-free.

When should you change your Audi A4 battery?

The battery is a wear part that should be changed at the first signs of weakness (difficulty starting). The vehicle maintenance plan rarely specifies periodic replacement. Battery life depends on usage conditions, battery type, and vehicle condition. Average life is about 5 years.

How to choose your Audi A4 battery?

For replacement, obtain a battery with the same specifications as the old one: voltage (12V), dimensions, battery type (AGM), storage capacity in Ah, starting current in A, terminal positions. You can fit a battery with slightly higher capacity and starting current. AGM vehicles must use AGM replacements.

How to change your Audi A4 battery without data loss?

To avoid resetting systems and losing vehicle data (radio, clock, settings), use an electronic memory saver (maintains 12V in the electrical circuit while replacing the battery). Connect it to battery cables, accessory socket, or diagnostic socket before disconnecting. Available from €10; prefer a version protected against reversed connections and short circuits.

Is it difficult to change the Audi A4 battery?

Battery replacement presents no particular difficulty unless elements obstruct access (fuse board, engine management ECU). Difficulty level 1/5: technically very easy. The step-by-step method covers: switch off ignition and all consumers, connect memory saver, remove obstructions, disconnect terminals (negative first), remove battery, clean tray and terminals, fit new battery, reconnect (positive first), check systems and reset as needed.

View all compatible products →
View your A4 maintenance plan (keep the A4 token) →

5 models covered

Model Year Range Engines covered Fuel
A4 1995-2002 1995-2002 1.6 Petrol (ADP), 1.6 Petrol (AHL), 1.6 Petrol (ALZ), 1.6 Petrol (ANA), 1.8 20V Petrol (ADR), 1.8 20V Petrol (AFY), 1.8 20V Petrol (APT), 1.8 20V Petrol (ARG), 1.8 20V Petrol (AVV), 1.8 20V Turbo Petrol (AEB), 1.8 20V Turbo Petrol (AJL), 1.8 20V Turbo Petrol (ANB), 1.8 20V Turbo… Diesel, Petrol
A4 2001-2005 2001-2005 1.6 8V Petrol (ALZ), 1.8 20V Turbo Petrol (AMB), 1.8 20V Turbo Petrol (AVJ), 1.8 20V Turbo Petrol (BEX), 1.8 20V Turbo, -Cabriolet Petrol (BFB), 1.9 TDI Diesel (AVB), 1.9 TDI Diesel (AVF), 1.9 TDI Diesel (AWX), 1.9 TDI Diesel (BKE), 2.0 20V, -Cabriolet Petrol (ALT), 2.0 FSi Petr… Diesel, Petrol
A4 2005-2009 2005-2009 1.6 8V Petrol (ALZ), 1.8 20V Turbo, -Cabriolet Petrol (BFB), 1.9 TDI Diesel (BKE), 1.9 TDI DPF Diesel (BRB), 2.0 20V Petrol (ALT), 2.0 TDI 8V DPF Cabriolet Diesel (BRC), 2.0 TDI 8V DPF, -Cabriolet Diesel (BPW), 2.0 TDI Diesel (BLB), 2.0 TDI Diesel (BNA), 2.0 TDI Diesel (BVG), 2.… Diesel, Petrol
A4 2007-2015 2007-2015 1.8 TFSI Petrol (CABA), 1.8 TFSI Petrol (CABB), 1.8 TFSI Petrol (CDHA), 1.8 TFSI Petrol (CDHB), 1.8 TFSI Petrol (CJEB), 2.0 TDI Diesel (CAGA), 2.0 TDI Diesel (CAGB), 2.0 TDI Diesel (CAGC), 2.0 TDI Diesel (CAHA), 2.0 TDI Diesel (CAHB), 2.0 TDI Diesel (CGLC), 2.0 TDI Diesel (CGLD)… Bioethanol (E85), Diesel, Petrol
A4 2016-2025 2016-2025 1.4 TFSI Petrol (CVNA), 2.0 G-tron CNG (CVLA), 2.0 TDI Diesel (DETA), 2.0 TDI Diesel (DETB), 2.0 TDI Diesel (DEUA), 2.0 TDI Diesel (DEUB), 2.0 TDI Diesel (DEUC), 2.0 TFSI MHEV 48V (MHEV),Petrol (DDWA), 2.0 TFSI MHEV 48V (MHEV),Petrol (DEMA), 2.0 TFSI Petrol (CVKB), 2.0 TFSI Petr… 48V (MHEV), CNG, Diesel, Petrol

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View the service schedule for your A4 →