Audi
ETKA – Engine identification letters
1st Column = Engine identification letters
| Engine identification letters | kW | HP | Litre | Cylinder | When installed | Model | Remarks |
| AAD | 85 | 115 | 2 | 4 | 08/90-07/91 | Audi Coupe | |
| AAD | 85 | 115 | 2 | 4 | 12/90-12/92 | Audi 100 | |
| AAD | 85 | 115 | 2 | 4 | 08/90-12/91 | Audi 80 | |
| AAE | 74 | 100 | 2 | 4 | 06/94-06/96 | Audi A6 | |
| AAE | 74 | 100 | 2 | 4 | 12/90-07/94 | Audi 100 | |
| AAH | 128 | 174 | 2,8 | 6 | 01/95-07/97 | Audi A4 | Greece: V6 |
| AAH | 128 | 174 | 2,8 | 6 | 11/94-07/97 | Audi A4 | V6 |
| AAH | 128 | 174 | 2,8 | 6 | 06/94-10/97 | Audi A6 | V6 |
| AAH | 128 | 174 | 2,8 | 6 | 06/94-03/96 | Audi A8 | V6 |
| AAH | 128 | 174 | 2,8 | 6 | 11/92-08/00 | Audi Cabrio | V6 |
| AAH | 128 | 174 | 2,8 | 6 | 08/91-12/95 | Audi Coupe | V6 |
| AAH | 128 | 174 | 2,8 | 6 | 10/93-07/94 | Audi 100 | Sweden: V6 |
| AAH | 128 | 174 | 2,8 | 6 | 12/90-07/94 | Audi 100 | V6 |
| AAH | 128 | 174 | 2,8 | 6 | 09/91-07/95 | Audi 80 | V6 |
| AAN | 169 | 230 | 2,2 | 5 | 07/96-07/97 | Audi A6 | |
| AAN | 169 | 230 | 2,2 | 5 | 08/91-07/94 | Audi S4 | |
| AAN | 169 | 230 | 2,2 | 5 | 06/94-07/97 | Audi S6 | |
| AAR | 98 | 133 | 2,3 | 5 | 06/94-06/96 | Audi A6 | |
| AAR | 98 | 133 | 2,3 | 5 | 12/90-07/94 | Audi 100 | |
| AAS | 60 | 82 | 2,4 | 5 | 05/91-07/94 | Audi 100 | Diesel |
| AAT | 85 | 115 | 2,5 | 5 | 06/94-10/97 | Audi A6 | TDI |
| AAT | 85 | 115 | 2,5 | 5 | 08/91-07/94 | Audi 100 | TDI |
| AAZ | 55 | 75 | 1,9 | 4 | 09/91-07/95 | Audi 80 | Turbo Diesel |
| ABB | 75 | 102 | 1,6 | 4 | 03/92-07/93 | Audi 100 | |
| ABB | 75 | 102 | 1,6 | 4 | 08/90-12/91 | Audi 80 | |
| ABB | 75 | 102 | 1,6 | 4 | 03/92-05/93 | Audi 80 | Creece, Israel, Portugal |
| ABC | 110 | 150 | 2,6 | 6 | 11/94-07/97 | Audi A4 | Greece: V6 |
| ABC | 110 | 150 | 2,6 | 6 | 11/94-07/98 | Audi A4 | South Africa V6 |
| ABC | 110 | 150 | 2,6 | 6 | 11/94-07/98 | Audi A4 | V6 |
| ABC | 110 | 150 | 2,6 | 6 | 06/94-10/97 | Audi A6 | V6 |
| ABC | 110 | 150 | 2,6 | 6 | 01/94-08/00 | Audi Cabrio | V6 |
| ABC | 110 | 150 | 2,6 | 6 | 08/92-12/95 | Audi Coupe | V6 |
| ABC | 110 | 150 | 2,6 | 6 | 03/92-07/94 | Audi 100 | V6 |
| ABC | 110 | 150 | 2,6 | 6 | 07/92-07/95 | Audi 80 | V6 |
| ABH | 206 | 280 | 4,2 | 8 | 10/92-07/94 | Audi S4 | V8 |
| ABH | 206 | 280 | 4,2 | 8 | 07/93-11/93 | Audi V8 | Canada/PR-K8L: V8 |
| ABH | 206 | 280 | 4,2 | 8 | 08/91-11/93 | Audi V8 | V8 |
| ABH | 206 | 280 | 4,2 | 8 | 08/91-11/93 | Audi V8 | PR-K8L: V8 |
| ABK | 85 | 115 | 2 | 4 | 06/94-06/96 | Audi A6 | |
| ABK | 85 | 115 | 2 | 4 | 01/93-09/98 | Audi Cabrio | |
| ABK | 85 | 115 | 2 | 4 | 08/91-12/95 | Audi Coupe | |
| ABK | 85 | 115 | 2 | 4 | 01/93-07/94 | Audi 100 | |
| ABK | 85 | 115 | 2 | 4 | 09/91-07/95 | Audi 80 | |
| ABM | 52 | 71 | 1,6 | 4 | 01/92-06/94 | Audi 80 | |
| ABP | 85 | 115 | 2,5 | 5 | 06/91-07/92 | Audi 100 | TDI |
| ABT | 66 | 90 | 2 | 4 | 09/91-06/95 | Audi 80 | |
| ABY | 169 | 230 | 2,2 | 5 | 05/95-12/95 | Audi Coupe | |
| ABY | 169 | 230 | 2,2 | 5 | 10/92-05/95 | Audi S2 | |
| ABY | 169 | 230 | 2,2 | 5 | 02/93-07/95 | Audi 80 | |
| ABZ | 220 | 299 | 4,2 | 8 | 05/94-05/99 | Audi A8 | V8 |
| ACE | 103 | 140 | 2 | 4 | 06/94-10/97 | Audi A6 | |
| ACE | 103 | 140 | 2 | 4 | 05/95-07/96 | Audi Cabrio | Italy |
| ACE | 103 | 140 | 2 | 4 | 08/92-12/95 | Audi Coupe | |
| ACE | 103 | 140 | 2 | 4 | 01/92-07/94 | Audi 100 | |
| ACE | 103 | 140 | 2 | 4 | 07/92-07/94 | Audi 100 | Italy |
| ACE | 103 | 140 | 2 | 4 | 08/92-07/95 | Audi 80 | |
| ACK | 142 | 193 | 2,8 | 6 | 08/97-07/98 | Audi A4 | Greece: V6 |
| ACK | 142 | 193 | 2,8 | 6 | 03/96-07/98 | Audi A4 | South Africa V6 |
| ACK | 142 | 193 | 2,8 | 6 | 03/96-12/98 | Audi A4 | V6 |
| ACK | 142 | 193 | 2,8 | 6 | 01/96-07/97 | Audi A6 | |
| ACK | 142 | 193 | 2,8 | 6 | 04/97-07/98 | Audi A6 | Greece: V6 |
| ACK | 142 | 193 | 2,8 | 6 | 10/95-01/99 | Audi A6 | V6 |
| ACK | 142 | 193 | 2,8 | 6 | 07/95-01/99 | Audi A8 | V6 |
| ACZ | 102 | 139 | 2,6 | 6 | 01/96-07/97 | Audi A4 | Community of independent states, Canada V6 |
| ACZ | 102 | 139 | 2,6 | 6 | 04/95-07/97 | Audi A4 | Community of independent states V6 |
| ACZ | 102 | 139 | 2,6 | 6 | 06/94-07/95 | Audi A6 | Canada V6 |
| ACZ | 102 | 139 | 2,6 | 6 | 06/94-10/97 | Audi A6 | Community of independent states, Canada V6 |
| ACZ | 102 | 139 | 2,6 | 6 | 07/96-10/97 | Audi A6 | Community of independent states V6 |
| ACZ | 102 | 139 | 2,6 | 6 | 09/94-12/99 | Audi Cabrio | Canada V6 |
| ACZ | 102 | 139 | 2,6 | 6 | 11/93-07/94 | Audi 100 | Community of independent states, Canada V6 |
| ACZ | 102 | 139 | 2,6 | 6 | 01/93-07/94 | Audi 100 | Canada V6 |
| ACZ | 102 | 139 | 2,6 | 6 | 07/93-06/95 | Audi 80 | Canada V6 |
| ACZ | 102 | 139 | 2,6 | 6 | 11/95- | Audi 200 | |
| ACZ | 102 | 139 | 2,6 | 6 | 11/93-07/95 | Audi 80 | Community of independent states V6 |
| ACZ | 102 | 139 | 2,6 | 6 | 05/93-07/93 | Audi 80 | V6 |
| ADA | 74 | 100 | 1,6 | 4 | 07/93-07/95 | Audi 80 | |
| ADA | 74 | 100 | 1,6 | 4 | 06/93-07/95 | Audi 80 | France |
| ADA | 74 | 100 | 1,6 | 4 | 06/93-07/93 | Audi 80 | Creece, Israel, Portugal |
| ADP | 74 | 100 | 1,6 | 4 | 11/94-10/96 | Audi A4 | |
| ADP | 74 | 100 | 1,6 | 4 | 11/94-10/96 | Audi A4 | Greece |
| ADR | 92 | 125 | 1,8 | 4 | 11/94-04/99 | Audi A4 | |
| ADR | 92 | 125 | 1,8 | 4 | 08/97-04/99 | Audi A4 | Australia, South Africa |
| ADR | 92 | 125 | 1,8 | 4 | 11/94-07/98 | Audi A4 | Greece |
| ADR | 92 | 125 | 1,8 | 4 | 11/94-04/99 | Audi A4 | South Africa |
| ADR | 92 | 125 | 1,8 | 4 | 10/95-10/97 | Audi A6 | |
| ADR | 92 | 125 | 1,8 | 4 | 10/95-10/97 | Audi A6 | Greece |
| ADR | 92 | 125 | 1,8 | 4 | 04/97-08/00 | Audi Cabrio | |
| ADU | 232 | 316 | 2,2 | 5 | 03/94-07/95 | Audi 80 | |
| ADW | 79 | 107 | 2 | 4 | 06/94-10/97 | Audi A6 | Community of independent states, Canada |
| ADW | 79 | 107 | 2 | 4 | 12/93-07/94 | Audi 100 | Community of independent states, Canada |
| ADW | 79 | 107 | 2 | 4 | 11/93-06/95 | Audi 80 | Community of independent states, Canada |
| ADW | 79 | 107 | 2 | 4 | 11/93-07/95 | Audi 80 | Community of independent states |