Audi A4
B5 / B5 (Typ 8D) / B6 / B7 / 1998-2023 / Sedan / Avant (wagon) / Sedan / Avant / Sedan, Avant (Wagon) / Sedan and Avant (wagon)
Year and trim selector
Choose the exact year and trim to see engine, oil and service details.
1998 Audi A4 AEB/ADR (B5)
B5 / AEB, ADR, ACK, ABK, AGG, BBE / Range included 1.8L 20V turbocharged inline-4, 1.9L TDI diesel, and 2.8L V6 engines; engine codes vary by market and fuel type.
2000 Audi A4 AEB/AQA (B5)
B5 / AEB, AQA, APB, AWT, ARD, AJL / The 2000 Audi A4 B5 offered a variety of inline-4 and V6 petrol engines and turbocharged 1.9L diesel engines, with notable engine codes including the 1.8L 20V 5-cylinder (AEB), 1.8T inline-4 (APB, AQA), and 2.8L V6 (AWT). Diesel variants were primarily 1.9L TDI with codes ARD and AJL.
2001 Audi A4 AEH/AGU (8D)
8D / AEH, AGU, ALF, AHA, AWV, APB, AWW, AVG / The 2001 Audi A4 B5 was available with various inline-4 and V6 engines: 1.6L I4, 1.8L turbo I4, 1.8L 20V turbo I4, 2.4L V6, 2.6L V6, and 2.8L V6, depending on market. Diesel variants (1.9L TDI) were available in Europe. The 1.8T 20V engine was the most common globally.
2002 Audi A4 ARX/ALT (B6)
B6 / ARX, ALT, AMK, APB, BFB / Range of 4-cylinder and V6 engines including 1.8L Turbo 4-cyl (ARX, ALT), 2.0L 4-cyl (AMK, APB) and 2.4L V6 (BFB) engines. Variations in power and fuel injection systems depending on market and model year within 2002.
2003 Audi A4 AVJ/AWN (B6)
B6 / AVJ, AWN, BAT, BFB, BGB, BKG, BHF, ASB / Inline-4 and V6 petrol engines plus inline-5 and V6 TDI diesel engines; power ranged from ~130 hp (1.6L petrol) up to ~250 hp (3.0L V6 petrol). Engine offering varied by market.
2006 Audi A4 BGB/BWE (B7)
B7 / BGB, BWE, CAPA, BMN, CAGA, CDNB, CBAB, CCTA / 2006 Audi A4 B7 generation engines ranged from 1.8L turbocharged inline-4 to 3.2L V6 petrol engines and 2.0L TDI diesel variants. Engine availability and specifications varied by market (Europe had more diesel options; North America sold mainly petrol engines).
2007 Audi A4 BGB/AWD (B7)
B7 / BGB, AWD, BWE, CFGB, CAGC, CAEB, CAHA, CAJA, BFB, BKC, BWE, BWA, BWE / 2007 Audi A4 offered a variety of inline four-cylinder and V6 petrol and diesel engines depending on market. Common engines included 1.8L Turbo I4 (BGB), 2.0L Turbo Diesel (BKP), 3.2L V6 (BHE), with variations between Europe and North America.
2009 Audi A4 CAGA/CAEB (8K)
8K / CAGA, CAEB, CDNC, CDNA, CDVB, CGGB, CAVD, CBBB, CJCA / Range includes 1.8L and 2.0L TFSI petrol engines, and 2.0L TDI diesel engines. Power outputs vary between 120 hp to 211 hp depending on engine and market.
2010 Audi A4 CAEB/CGLB (8K)
8K / CAEB, CGLB, CDNC, CHJA, CDNC, CCTA, CAGC / The 2010 Audi A4 B8 came with a range of 4-cylinder and V6 engines across markets. Main petrol engines are 2.0L TFSI inline-4 with output ranging 180-211 hp (engine codes CAEB, CCTA), and a 3.2L VR6 (engine code BKH) mainly in some markets. Diesel variants in Europe include 2.0L TDI inline-4 engines (CGLB, CCTA) with various tune levels and a 3.0L V6 TDI (CDNC).
2012 Audi A4 CAGA/CDNC (8K)
8K / CAGA, CDNC, CGLB, CJAA, CFGB, CJGC, CTBC, CGQB / Range of 4-cylinder petrol and diesel engines, including 1.8 TFSI (CAGA), 2.0 TFSI (CJAA, CFGB), 2.0 TDI variants (CDNC, CGLB, CGQB) and 3.0 V6 TDI (CJGC, CTBC) depending on market.
2013 Audi A4 CAEB/CDNB (B8.5)
B8.5 / CAEB, CDNB, CJEB, CGWA, CLMB, CABA / Range of turbocharged 4-cylinder and 6-cylinder engines including 2.0L TFSI petrol, 3.0L TDI diesel V6, varying by market.
2014 Audi A4 CPT/CRWA (8K)
8K / CPT, CRWA, CDNB, CGLB, CGWB, CHJA, CJT / The 2014 Audi A4 featured a range of turbocharged inline-4 and V6 engines varying by market, including 2.0L TFSI petrol and 2.0L and 3.0L TDI diesel variants. Engine availability depends on region and emissions standards.
2015 Audi A4 CMXA/CJKA (8K)
8K / CMXA, CJKA, CVJB, CRLB, DHEX, FYTC / Main engine variants include 2.0L TFSI gasoline (various tunes) and 2.0L TDI diesel engines with different power outputs depending on market. In North America, predominant engines are 2.0L TFSI petrol inline-4 (CMXA/CJKA) and 3.0L supercharged V6 (CJSC) available in S4 variant. Europe and other markets have a wider range of TDI diesels (CRLB, CVJB), and smaller petrol engines.
2017 Audi A4 CJKA/CPTA (8W)
8W / CJKA, CPTA, CNHA, CRLB, ENEA / Multiple engines including 2.0L TFSI turbocharged petrol (CJKA, CPTA, CNHA), 2.0L TDI diesel variants (CRLB), and 3.0L TFSI supercharged petrol for some markets (ENEA). Engines vary by market and emissions regulations.
2019 Audi A4 CYRA/CZGA (8W)
8W / CYRA, CZGA, CPTA, CFJA, CDNC / Turbocharged four-cylinder TFSI petrol engines and TDI diesel engines, with some markets offering 2.0L or 3.0L capacity variants. Engines differ by emissions regulation and market preferences.
2023 Audi A4 DADA (2.0 TFSI petrol)/DAJA (2.0 TFSI petrol mild hybrid) (B9)
B9 / DADA (2.0 TFSI petrol), DAJA (2.0 TFSI petrol mild hybrid), CDUC (2.0 TDI diesel), CYKB (2.0 TDI diesel mild hybrid) / The 2023 Audi A4 B9 facelift features primarily 2.0L inline-4 petrol and diesel engines with turbocharging and mild hybrid technology in selected markets. Diesel variants are common in Europe. Petrol mild-hybrid varies by market.
Engine codes by year
| Year | Trim | Engine codes | Displacement | Fuel system |
|---|---|---|---|---|
| 1998 | technical-profile | AEB, ADR, ACK, ABK, AGG, BBE | 1781 to 2771 cc | Multi-point fuel injection (gasoline), direct injection turbocharged (TDI diesel) |
| 2000 | technical-profile | AEB, AQA, APB, AWT, ARD, AJL | 1.8L to 2.8L | Multi-point fuel injection (petrol), direct injection with turbocharging (diesel) |
| 2001 | technical-profile | AEH, AGU, ALF, AHA, AWV, APB, AWW, AVG | 1.6L to 2.8L | Multi-point fuel injection (MPI) or electronic fuel injection (EFI), direct injection for diesels |
| 2002 | technical-profile | ARX, ALT, AMK, APB, BFB | 1781 cc to 2495 cc | Multi-point fuel injection; turbocharged variants uses electronically controlled turbo system |
| 2003 | technical-profile | AVJ, AWN, BAT, BFB, BGB, BKG, BHF, ASB | 1588 cc to 2967 cc | Multi-point fuel injection (petrol), common rail direct injection (diesel) |
| 2006 | technical-profile | BGB, BWE, CAPA, BMN, CAGA, CDNB, CBAB, CCTA | 1.8L to 3.2L | Multi-point fuel injection with turbocharged variants employing direct/indirect injection depending on engine |
| 2007 | technical-profile | BGB, AWD, BWE, CFGB, CAGC, CAEB, CAHA, CAJA, BFB, BKC, BWE, BWA, BWE | 1798 cc to 3189 cc | Multi-point fuel injection for petrol engines; common rail direct injection for diesels |
| 2009 | technical-profile | CAGA, CAEB, CDNC, CDNA, CDVB, CGGB, CAVD, CBBB, CJCA | 1798-1984 cc | Multi-point fuel injection (TFSI petrol), Common rail direct injection (TDI diesel) |
| 2010 | technical-profile | CAEB, CGLB, CDNC, CHJA, CDNC, CCTA, CAGC | 2.0L to 3.2L | Direct injection for petrol (TFSI), common rail for diesel (TDI) |
| 2012 | technical-profile | CAGA, CDNC, CGLB, CJAA, CFGB, CJGC, CTBC, CGQB | 1.8L to 3.0L | Multi-point fuel injection with turbocharging for petrol; Common rail direct injection for diesel |
| 2013 | technical-profile | CAEB, CDNB, CJEB, CGWA, CLMB, CABA | 1984 to 2967 cc | Direct fuel injection (TFSI for petrol), common rail injection (TDI diesel) |
| 2014 | technical-profile | CPT, CRWA, CDNB, CGLB, CGWB, CHJA, CJT | 1984 cc (2.0L inline-4), 2967 cc (3.0L V6 diesel) | Direct injection (FSI/TFSI for petrol engines, common rail for diesels) |
| 2015 | technical-profile | CMXA, CJKA, CVJB, CRLB, DHEX, FYTC | 1984 cc (2.0L engines), 2995 cc (3.0L V6 supercharged - S4 variant) | Direct injection (petrol and diesel variants) |
| 2017 | technical-profile | CJKA, CPTA, CNHA, CRLB, ENEA | 1984 - 2995 cc | Direct injection, turbocharged/supercharged for petrol engines; common rail diesel injection for TDI engines |
| 2019 | technical-profile | CYRA, CZGA, CPTA, CFJA, CDNC | 1984 cc (2.0L) main petrol and diesel engines; 2995 cc V6 in select trims/markets | Direct injection for petrol engines; common rail for diesel engines |
| 2023 | technical-profile | DADA (2.0 TFSI petrol), DAJA (2.0 TFSI petrol mild hybrid), CDUC (2.0 TDI diesel), CYKB (2.0 TDI diesel mild hybrid) | 1984 cc (2.0L inline-4) | Direct injection turbocharged petrol/diesel |
Oil capacity by engine
| Year | Engine codes | Oil type | Oil capacity | Fluid |
|---|---|---|---|---|
| 1998 | AEB, ADR, ACK, ABK, AGG, BBE | 5W-30 API SL/SM or ACEA A3 engine oil recommended | Approx. 4.3L including filter (service fill; varies with engine type) | Audi G 052 162 A2 or equivalent |
| 2000 | AEB, AQA, APB, AWT, ARD, AJL | 5W-40 synthetic API SL or better | Approx. 4.0 L including filter change (varies by engine) | G 052 162 A2 (VW specified) |
| 2001 | AEH, AGU, ALF, AHA, AWV, APB, AWW, AVG | 5W-40 synthetic oil meeting VW 502 00 or Audi specifications | Approx. 4.3L (service fill including filter change, varies by engine) | Audi approved ATF for automatic transmission |
| 2002 | ARX, ALT, AMK, APB, BFB | Fully synthetic 5W-40 engine oil meeting VW 502 00 specification | Approx. 4.3 liters (service-fill, includes oil filter replacement) | Audi G 052 162 A2 (automatic); manual uses API GL-4 gear oil |
| 2003 | AVJ, AWN, BAT, BFB, BGB, BKG, BHF, ASB | Audi VW 502 00 specification synthetic oil | Approx. 4.3 to 6.5 liters (service fill including filter depending on engine variant) | Audi G 052 162 A2 or equivalent synthetic fluid |
| 2006 | BGB, BWE, CAPA, BMN, CAGA, CDNB, CBAB, CCTA | Audi VW 502 00 / 504 00 specification synthetic oil recommended | Approx. 4.3 to 5.0 liters service fill including filter, depending on engine code | Audi G 052 182 A2 (for Tiptronic transmissions) |
| 2007 | BGB, AWD, BWE, CFGB, CAGC, CAEB, CAHA, CAJA, BFB, BKC, BWE, BWA, BWE | API SL or higher quality, SAE 5W-40 synthetic recommended | Approximately 4.3 to 5.5 liters including filter change depending on engine variant (service-fill) | Audi G052182 A2 or equivalent |
| 2009 | CAGA, CAEB, CDNC, CDNA, CDVB, CGGB, CAVD, CBBB, CJCA | VW 504 00 / 507 00 approved synthetic oil | Approx. 4.3 liters (service fill including filter change); consult manual for exact value by engine | Audi G 052 182 A2 (varies by transmission type) |
| 2010 | CAEB, CGLB, CDNC, CHJA, CDNC, CCTA, CAGC | Audi LongLife 504 00 or equivalent synthetic 5W-40 or 5W-30 fully synthetic | Approx. 4.6 L (service-fill including filter change) for 2.0 TFSI; varies by engine | Audi G 052 182 A2 (DSG); manual uses MTF G 052 171 A2 |
| 2012 | CAGA, CDNC, CGLB, CJAA, CFGB, CJGC, CTBC, CGQB | VW 502 00 spec synthetic oil | Approximately 4.6 liters service fill with filter change (depends on engine code) | Audi approved synthetic transmission fluid, type varies by transmission |
| 2013 | CAEB, CDNB, CJEB, CGWA, CLMB, CABA | Audi VW 504 00 / 507 00 fully synthetic oils | Approx. 4.6 liters including filter (service-fill quantity for 2.0 TFSI CAEB engine) | VW G 052 182 A2 (S-Tronic), VW G 055 162 A2 (Tiptronic) |
| 2014 | CPT, CRWA, CDNB, CGLB, CGWB, CHJA, CJT | Synthetic 5W-30 or 5W-40 meeting VW 502 00 (petrol) or VW 507 00 (diesel) specifications | Approx. 4.6 liters including filter; service-fill including filter change | Audi G 052 182 A2 or equivalent, as per service manual |
| 2015 | CMXA, CJKA, CVJB, CRLB, DHEX, FYTC | VW 502 00 / 505 00 specification for petrol engines, VW 507 00 for diesel engines | Approx. 4.3 liters (including filter) for 2.0 TFSI engines (service-fill with filter change) - varies by engine | VW G 052 182 A2 (S-Tronic), VW G 052 162 A2 (automatic Tiptronic) |
| 2017 | CJKA, CPTA, CNHA, CRLB, ENEA | VW 504 00 / 507 00 approved synthetic oil | Approximately 5.7 liters for 2.0 TFSI (service fill including filter change); check specific engine variant for exact capacity | Audi specified synthetic fluid, type varies by transmission model |
| 2019 | CYRA, CZGA, CPTA, CFJA, CDNC | VW 504 00 / 507 00 grade synthetic oil recommended | Approx. 5.7 liters service fill including filter change for 2.0 TFSI engines | Audi G 052 182 A2 or equivalent for DSG gearboxes |
| 2023 | DADA (2.0 TFSI petrol), DAJA (2.0 TFSI petrol mild hybrid), CDUC (2.0 TDI diesel), CYKB (2.0 TDI diesel mild hybrid) | Audi VW 502 00 / 504 00 approved synthetic oil | Approximately 5.7 liters (service fill, includes filter change) | Audi G 052 182 A2 or equivalent |
Technical specifications
- Engines: AEB, ADR, ACK, ABK, AGG, BBE, AQA, APB, AWT, ARD, AJL, AEH
- Transmissions: 5-speed manual (some markets 6-speed manual available from 1999), 4-speed automatic available on select models, Audi G 052 162 A2 or equivalent, 5-speed manual, 4-speed automatic (multitronic CVT option emerging in some markets), G 052 162 A2 (VW specified), 5-speed manual (some markets 6-speed for stronger engines), 4-speed automatic or 5-speed tiptronic automatic
- Tire sizes: 195/65 R15, 205/55 R16, 225/45 R17, 225/45 R17 depending on trim, 225/40 R18 depending on market and trim, 225/40 R18, 225/40 R18 depending on trim and market, 225/50 R17, 245/40 R18, varies by market and trim
- Bolt pattern: Verify by exact trim and wheel package
- Wheel torque: Verify by VIN and wheel package
- Battery: Verify by engine, market and equipment package
Fluids and service data
- Engine oil: 5W-30 API SL/SM or ACEA A3 engine oil recommended / 5W-40 synthetic API SL or better / 5W-40 synthetic oil meeting VW 502 00 or Audi specifications / Fully synthetic 5W-40 engine oil meeting VW 502 00 specification
- Transmission fluid: Audi G 052 162 A2 or equivalent / G 052 162 A2 (VW specified) / Audi approved ATF for automatic transmission / Audi G 052 162 A2 (automatic); manual uses API GL-4 gear oil
- Coolant: Approx. 6.6L / Approx. 7 L / Approx. 8L depending on engine and cooling system / Approx. 7 liters
- Brake fluid: DOT 4 / DOT4 recommended / DOT 4, change recommended every 2 years / DOT4, replace approximately every 2 years
Known problems
- Timing belt wear on older engines
- Electrical issues on models with high mileage
- Oil consumption on 1.8T engines
- Timing belt wear
- Coolant leaks from thermostat housing
- Timing belt wear (replace every 60,000 km)
- Coolant leaks from water pump
- Camshaft adjuster solenoid failure (1.8T engines)
- Automatic transmission mechatronics issues (North American models)
- Turbocharger wastegate actuator wear (turbo models)
- Timing belt wear and water pump failure if not replaced timely
- Oil consumption in some 1.8T engines