605 (Chassis/Model Related)

Note: In the VAG group, these are often associated with specific model identifiers or niche engine serials.
605 (PSA/VAG Context): Often refers to the Peugeot 605 (2.0-3.0L) or specific VAG component batches.

DXDE / DXDB 

Engine Family: EA211 evo2
Specifications: 1.5L (1498cc), 150 HP (110 kW), 250 Nm Torque.
Key Feature: Latest generation with VTG (Variable Turbine Geometry) and ACT.
Common Applications: VW Golf 8, Audi A3 (8Y), Skoda Octavia IV (2022–present).

CGPB (1.2 MPI)

Engine Family: EA111
Specifications: 1.2L (1198cc), 60 HP (44 kW), 108 Nm Torque.
Key Feature: 3-cylinder chain-driven engine.
Common Applications: VW Polo 6R, Skoda Fabia II.

CUBA Engine (2.0 TDI Diesel)

Engine Family: EA288
Specifications: 2.0L (1968cc), 184 HP (135 kW), 380 Nm Torque.
Key Feature: High-output variant of the 2.0 TDI often found in “GT” or “RS” performance diesel trims.
Common Applications:
◦ Seat: Leon FR (2013–2017)
◦ Audi: Q3 (2014–2018)

911(Chassis/Model Related)

Note: In the VAG group, these are often associated with specific model identifiers or niche engine serials.

911 (Porsche Context): Typically refers to the Porsche 911 Engine Family (e.g., MA1.01/02) for the 3.6L/3.8L Flat-6 engines.

DGTE Engine (1.6 TDI Diesel)

Engine Family: EA288 evo (Euro 6d-TEMP)
Specifications: 1.6L (1598cc), 115 HP (85 kW), 250 Nm Torque.
Common Applications:
◦ Volkswagen: Golf 7 Facelift, T-Roc (2016–2020)
◦ Seat: Ateca, Leon (2016–2022)
◦ Skoda: Karoq, Octavia (2017–2022)

CHPA (1.4 TSI)

Engine Family: EA211
Specifications: 1.4L (1395cc), 140 HP (103 kW), 250 Nm Torque.
Key Feature: Lightweight aluminium block with integrated exhaust manifold.
Common Applications: VW Golf 7, Seat Leon Mk3, Skoda Octavia III (2012–2015).

CZCA (1.4 TSI)

Engine Family: EA211
Specifications: 1.4L (1395cc), 125 HP (92 kW), 200 Nm Torque.
Key Feature: Simplified 1.4 TSI without cylinder deactivation (ACT).
Common Applications: VW Golf 7, Audi A3 (8V), Seat Leon (2014–2018).

BWA (2.0 TFSI)

Engine Family: EA113
Specifications: 2.0L (1984cc), 200 HP (147 kW), 280 Nm Torque.
Key Feature: Timing belt driven with a small chain for camshafts; K03 turbo.
Common Applications: VW Golf 5 GTI, Seat Leon Cupra, Audi A3 (8P) (2005–2009).

CRLB Engine (2.0 TDI Diesel)

Engine Family: EA288
Specifications: 2.0L (1968cc), 150 HP (110 kW), 340 Nm Torque.
Common Applications:
◦ Volkswagen: Passat B8, Golf 7 (2012–2019)
◦ Audi: A3 (8V) (2012-2018)
◦ Skoda: Superb III (2015–present)

CHYA / CHYB (1.0 MPI)

Engine Family: EA211
Specifications: 1.0L (999cc), 60 HP (CHYA) / 75 HP (CHYB), 95 Nm Torque.
Key Feature: Naturally aspirated (non-turbo) for city cars.
Common Applications: VW Up!, Skoda Citigo, Seat Mii.

DFCA (2.0 TDI)

Engine Family: EA288
Specifications: 2.0L (1968cc), 190 HP (140 kW), 400 Nm Torque.
Key Feature: Euro 6 compliant with AdBlue (SCR) technology.
Common Applications: VW Passat B8, Tiguan AD1, Audi A4 (B9).

CAXA Engine (1.4 TSI Petrol)

Engine Family: EA111
Specifications: 1.4L (1390cc), 122 HP (90 kW), 200 Nm Torque.
Key Feature: Turbocharged with a timing chain (unlike the later belt-driven CMBA).
Common Applications:
◦ Volkswagen: Golf 5/6, Scirocco, Tiguan (2007–2014)
◦ Skoda: Octavia II, Yeti (2008–2013)
◦ Seat: Leon Mk2 (2007–2012)

CXXB Engine (1.6 TDI Diesel)

Engine Family: EA288
Specifications: 1.6L (1598cc), 110 HP (81 kW), 250 Nm Torque.
Key Feature: Features updated emissions hardware compared to CLHA.
Common Applications:
◦ Volkswagen: Golf VII, Passat B8 (2014–2017)
◦ Skoda: Octavia III, Superb III (2014–2016)
◦ Audi: A3 8V (2013–2017)
◦ Seat: Leon 5F (2013–2016)

CKRB Engine (2.0 TDI Diesel)

Engine Family: EA288
Specifications: 2.0L (1968cc), 150 HP (110 kW), 340 Nm Torque.
Key Feature: Common-rail injection with a variable-geometry turbocharger (VGT); Euro 6-compliant.
Common Applications:
◦ Volkswagen: Golf 7, Passat B8 (2012–2017)
◦ Audi: A3 (8V) (2012–2016)
◦ Skoda: Octavia III (2013–2017)

DGEA (1.4 TSI PHEV)

Engine Family: EA211 (Hybrid)
Specifications: 1.4L (1395cc) + Electric Motor, Combined 204-245 HP.
Key Feature: Plug-in Hybrid (GTE/e-Hybrid) powertrain.
Common Applications: VW Golf 7/8 GTE, Passat GTE, Cupra Leon e-Hybrid.

CAYC (1.6 TDI)

Engine Family: EA189
Specifications: 1.6L (1598cc), 105 HP (77 kW), 250 Nm Torque.
Key Feature: Common rail injection system; replaced the older 1.9 TDI PD engines.
Common Applications: VW Golf 6, Passat B7, Audi A3 (8P), Skoda Octavia II.

CLHA Engine 

Engine Family: EA288
Specifications: 1.6L (1598cc), 105 HP (77 kW), 250 Nm Torque.
Fuel System: Common Rail Direct Injection.
Common Applications:
◦ Volkswagen: Golf Mk7 (2012–2014)
◦ Audi: A3 (8V) (2012–2014)
◦ Skoda: Octavia III (2013–2015)
◦ Seat: Leon III (2012–2015)

CMBA Engine 

Engine Family: EA211
Specifications: 1.4L TSL petrol (1395cc), 122 HP (90 kW), 200 Nm Torque.
Key Feature: Early EA211 series switching from chain-driven to belt-driven timing for better reliability.
Common Applications:
◦ Audi: A3 (8V) (2012–2014)
◦ Volkswagen: Golf 7 (2012–2014)

DLAA / CHZ (1.0 TSI)

Engine Family: EA211 / EA211 evo
Specifications: 1.0L (999cc), 110-115 HP (81-85 kW), 200 Nm Torque.
Key Feature: 3-cylinder turbocharged engine; DLAA is the “evo” version.
Common Applications: VW Polo, Golf 8, Audi A1, Skoda Scala.

CEGA (2.0 TDI)

Engine Family: EA189
Specifications: 2.0L (1968cc), 170 HP (125 kW), 350 Nm Torque.
Key Feature: High-output 16V Common Rail diesel with DPF.
Common Applications: VW Golf GTD, Skoda Octavia RS, Seat Leon FR (2008–2012).

CFWA (1.2 TDI)

Engine Family: EA189
Specifications: 1.2L (1199cc), 75 HP (55 kW), 180 Nm Torque.
Key Feature: 3-cylinder fuel-efficient engine used in “BlueMotion” models.
Common Applications: VW Polo 6R, Skoda Fabia II, Seat Ibiza (2010–2014).

CSXA Engine (1.5 TSI Petrol)

Engine Family: EA211 evo
Specifications: 1.5L (1498cc), 150 HP (110 kW), 250 Nm Torque.
Key Feature: Miller cycle combustion process for improved thermal efficiency.
Common Applications:
◦ Volkswagen: Golf 7.5, T-Roc (2017–2020)
◦ Skoda: Karoq (2017–present)

DSGD (Transmission / Hybrid Context)

Note: DSGD is typically the code for the DQ400e 6-speed DSG transmission used in VAG hybrids, but often indexed alongside DGEA engines.