Audi Engines

2.5 TFSI I5

2.5L Turbo I5

2009–present

Ducato, TT, Q3, A3, TT RS 2.5 TFSI

Legendary 5-cyl. 9x Engine of the Year. Forged internals. Surprisingly reliable.

EA837 3.0T SC

3.0L SC V6

2008–2017

A5, A4, Q5, A8, A6, A7

Most reliable S-model Audi ever. Supercharged = instant. Known issues cheap. 200...

EA888 Gen 4

2.0L Turbo I4

2020–present

A1 35 TFSI, A3 35 TFSI, A4 2.0 TFSI, A4 Avant 2.0 TFSI, A5 2.0 TFSI, A5 Sportback 2.0 TFSI, A6 2.0 TFSI, Q3 35 TFSI, Q5 2.0 TFSI

Gen 3 refined. Higher compression, better cooling. Strong long-term outlook.

EA888 Gen 3

2.0L Turbo I4

2012–2020

A4, A3, TT, Q7, A5, R8, A6 2.0 TFSI, Q3 2.0 TFSI, Q5 2.0 TFSI

Game changer. Dual injection solved carbon. Metal tensioner. 200k+ mi. Best VW G...

3.0 V6 TDI

3.0L V6 Diesel

2004–2020

A4, Touareg, A8, A6, Q7, A5, Q5, A7, Q7 3.0 TDI

Torque monster. Amazing highway economy. BiTDI = 313hp. Avoid city-only.

EA211 1.4 TFSI

1.4L Turbo I4

2012–2020

A4, A3, Leon, Touran, Ibiza, Toledo, Golf, Polo, Passat, Formentor, Superb, Octavia, Tarraco, Tiguan, Kodiaq, A1 1.0 TFSI, A1 1.4 TFSI, Q2 1.4 TFSI, Q3 1.4 TFSI

Timing belt (not chain) = no stretch. Cylinder deactivation. Efficient budget Au...

EA839 3.0T TT

3.0L TT V6

2016–present

A5, A4, Q7, Q8, Touareg, A8, A7, A6

Replaced supercharger with twin-turbo. Smoother power. Promising.

EA839 2.9 V6 TT

2.9 V6 Biturbo RS4/RS5 (DEZA)

2017–present

A5, A4

RS4/RS5 B9. EA839 family (shared with Porsche). Hot-V design. Strong internals. ...

EA211 1.5 TFSI

1.5L Turbo I4

2017–present

Golf, Octavia, Leon, Karoq, Ateca, A3, Ibiza, Kodiaq, Arona, Formentor, A4, Touran, Polo, Taigo, Scala, Tarraco, T-Cross, A6, Passat, Caddy, Tiguan, Kamiq, Q3, Superb, Fabia, T-Roc, A1 30 TFSI, A3 1.5 TFSI, Q2 1.5 TFSI

EA211 evolution. Miller cycle. Adequate daily. Low-RPM shudder (software fix).

2.4/2.8 V6 (ACK/APS)

2.4/2.8 V6 NA

1997–2005

A6, A4

B5/C5 A4/A6 V6. Timing belt (not chain!) — failure destroys engine. Smooth, refi...

EA288 2.0 TDI

2.0L TDI CR

2012–present

A1 1.6 TDI, A3 1.6 TDI, A3 2.0 TDI, A3 Sedan 2.0 TDI, A4 2.0 TDI, A4 Avant 2.0 TDI, A5 2.0 TDI, A6 2.0 TDI, A6 Avant 2.0 TDI, Q3 2.0 TDI

Post-Dieselgate clean diesel. Common rail, refined, efficient. Strong highway cr...

3.0 V6 NA

3.0 V6 NA (ASN/AVK/BBJ)

2001–2008

A6, A8

B6/B7 A4, C5/C6 A6. Timing chain (good). Smooth, refined V6. Oil consumption at ...

2.0 NA (ALT)

2.0 NA (ALT/AWA)

2001–2005

A4

B6 A4. Simple NA 2.0 without turbo/FSI complexity. Timing belt (interference). O...

1.8T (EA113)

1.8T 20V Turbo I4

1995–2005

A4, A6, A3, TT, S80, V70, S60, S40, V50

B5 A4/Passat B5. AEB/APU/AWM codes. Oil sludge issue if intervals skipped. Turbo...

4.0 TFSI V8 TT

4.0L TT V8

2012–present

A8, A7, A6, Formentor, Q3, TT, A3, Q8

Flagship. 600hp. Powers Lamborghini Urus too. Expensive to fix.

4.0 TDI V8 SQ7

4.0 TDI V8 (CZAC/DCZF) SQ7/SQ8

2016–present

Q7

SQ7/SQ8. Electric compressor + twin-turbo. Most complex diesel ever made. 48V sy...

3.2 V6 FSI

3.2 V6 FSI

2005–2012

A4, TT, A5

B7/B8 A4/A6. Direct injection V6. Carbon buildup on intake valves (no walnut bla...

5.2 V10 TFSI

5.2 V10 TFSI (DECA/BUJ)

2008–2024

R8

RS6/RS7 C7, R8 V10 Performance. Twin-turbo V10. Carbon buildup. Turbo failure at...

EA839 3.0 TFSI

3.0L Twin-Turbo V6

2016–present

Q8, Q5, A7 3.0 TFSI TT, S4 3.0 TFSI TT, S5 3.0 TFSI TT

Replaced supercharged EA837. Hot-V layout. Powerful but complex. Turbo and coola...

2.7 TDI

2.7 TDI V6 (BPP/CANB/CANA)

2004–2011

A6

C6 A6, B7 A4. Chain driven BUT chain at rear (expensive). Injector failures. DPF...

EA897 3.0 TDI

3.0L V6 TDI

2004–2020

RS6 4.0 TFSI, RS7 4.0 TFSI

Powerful V6 diesel. Earlier models: injector and turbo issues. BiTDI variants ad...

5.0/5.2 V10

5.0/5.2 V10 NA (BUH/BSM)

2006–2015

A6, R8

S6/S8 C6, R8 V10 NA. Lamborghini-shared V10. Carbon buildup on DI variants. Timi...

EA113 2.0T

2.0L Turbo I4

2005–2009

Golf, A3, A4, Altea, Toledo, Leon, Passat, TT, Octavia

Pioneer turbo four. Cast-iron block, great tuning base. Oil use is "feature not ...

2.7 Biturbo

2.7 Biturbo V6 (AGB/AZB/ASJ)

1999–2005

A4

C5 S4/RS4, B5 S4. Twin K03/K04 turbos. Turbo failure common. Oil sludge if negle...

EA189 2.0 TDI

2.0L TDI (Dieselgate)

2008–2015

Mechanically decent diesel tainted by emissions scandal. Software fix applied. E...

4.0 TDI V8

4.0 TDI V8 (BTR/CCFC/CDSB)

2003–2012

Q7, A8

D3 A8, Q7. V8 diesel — enormous torque. Complex. Timing chain. 8 injectors = exp...

4.2 V8 FSI

4.2L NA V8

2003–2015

A6, Q7, A4, A8, R8, A5

Glorious NA V8. B6/B7 S4 = nightmare. R8/RS5 = solid. Check application.

5.0 V10 TT (BUH)

5.0 V10 Twin-Turbo RS6 C6

2008–2010

A6

RS6 C6. Twin KKK K24 turbos on Lamborghini V10 block. Most powerful Audi estate ...

2.5 V6 TDI (AKE)

2.5 V6 TDI

1997–2005

A6, A4

C5 A6 2.5 TDI. Camshaft wear is catastrophic — soft cam lobes wear flat, destroy...

6.0 W12

6.0 W12 (BHT)

2003–2010

A8

D3 A8 W12, Phaeton. Two VR6 blocks merged. 4 timing chains. Ignition coil failur...

EA888 Gen 2

2.0L Turbo I4

2009–2012

A5, A4, Q5, A6, A3 2.0 TFSI

Same oil + tensioner flaws as Gen 1. CR: rebuild by 100-150k mi.

EA888 Gen 1

2.0L Turbo I4

2006–2009

A3, Golf, Ibiza, A6, Passat, Alhambra, Superb, Q3, TT, GR Yaris, A4 2.0 TFSI, Q5 2.0 TFSI

Notorious oil burning + plastic tensioner failure. Class-action. Avoid.

EA888 Gen 1/2

2.0L Turbo I4 (early)

2006–2012

Tiguan

Notorious oil burning, plastic timing chain tensioner failure. Multiple class-ac...