Audi
ETKA – Engine identification letters
1st Column = Engine identification letters
| Engine identification letters | kW | HP | Litre | Cylinder | When installed | Model |
| DD | 55 | 75 | 1,6 | 4 | 08/81-07/82 | Audi Coupe |
| DE | 66 | 90 | 2 | 5 | 11/81-12/87 | Audi 100 |
| DR | 55 | 75 | 1,8 | 4 | 05/82-10/86 | Audi 100 |
| DS | 66 | 90 | 1,8 | 4 | 08/82-07/88 | Audi Coupe |
| DS | 66 | 90 | 1,8 | 4 | 05/83-07/89 | Audi 100 |
| DS | 66 | 90 | 1,8 | 4 | 01/83-03/87 | Audi 80 |
| DT | 55 | 75 | 1,6 | 4 | 08/83-03/87 | Audi 80 |
| DZ | 82 | 112 | 1,8 | 4 | 08/86-07/91 | Audi Coupe |
| DZ | 82 | 112 | 1,8 | 4 | 01/83-12/91 | Audi 80 |
| DZ | 82 | 112 | 1,8 | 4 | 08/89-12/91 | Audi 90 |
| EP | 44 | 60 | 1,3 | 4 | 08/81-03/87 | Audi 80 |
| FS | 53 | 72 | 1,6 | 4 | 01/76-07/76 | Audi 80 |
| FS | 53 | 72 | 1,6 | 4 | 01/76-07/78 | Audi 80 |
| FY | 40 | 54 | 1,3 | 4 | 08/78-07/81 | Audi 80 |
| FZ | 44 | 60 | 1,3 | 4 | 08/78-07/81 | Audi 80 |
| GV | 147 | 200 | 2,2 | 5 | 07/80-07/87 | Audi Quattro |
| HA | 29 | 40 | 0,9 | 4 | 04/75-09/81 | Derby |
| HA | 29 | 40 | 0,9 | 4 | 04/75-09/81 | Polo |
| HB | 37 | 50 | 1,1 | 4 | 08/74-07/78 | Audi 50 |
| HB | 37 | 50 | 1,1 | 4 | 07/76-09/81 | Derby |
| HB | 37 | 50 | 1,1 | 4 | 04/75-09/81 | Polo |
| HC | 44 | 60 | 1,1 | 4 | 08/74-07/77 | Audi 50 |
| HC | 44 | 60 | 1,1 | 4 | 07/76-07/77 | Derby |
| HC | 44 | 60 | 1,1 | 4 | 04/75-07/77 | Polo |
| HD | 38 | 52 | 1,1 | 4 | 08/76-07/78 | Audi 50 |
| HE | 25 | 34 | 0,8 | 4 | 01/76-07/78 | Polo |
| HH | 44 | 60 | 1,3 | 4 | 08/77-07/78 | Audi 50 |
| HH | 44 | 60 | 1,3 | 4 | 08/77-09/81 | Derby |
| HH | 44 | 60 | 1,3 | 4 | 08/77-09/81 | Polo |
| HJ | 43 | 58 | 1,3 | 4 | 01/77-09/81 | Derby |
| HJ | 43 | 58 | 1,3 | 4 | 01/77-09/81 | Polo |
| HP | 85 | 115 | 2 | 5 | 08/83-07/86 | Audi Coupe |
| HP | 85 | 115 | 2 | 5 | 08/83-07/84 | Audi 80 |
| HP | 85 | 115 | 2 | 5 | 10/84-03/87 | Audi 90 |
| HX | 101 | 137 | 2,2 | 5 | 08/84-07/86 | Audi 100 |
| HX | 101 | 137 | 2,2 | 5 | 08/84-07/86 | Audi 100 |
| HX | 101 | 137 | 2,2 | 5 | 08/84-07/86 | Audi 100 |
| HX | 101 | 137 | 2,2 | 5 | 08/86-12/87 | Audi 100 |
| HY | 100 | 136 | 2,2 | 5 | 08/84-07/88 | Audi Coupe |
| HY | 100 | 136 | 2,2 | 5 | 08/84-03/87 | Audi 90 |
| HY | 100 | 136 | 2,2 | 5 | 06/84-03/87 | Audi 90 |
| JK | 40 | 54 | 1,6 | 4 | 08/82-07/89 | Audi 80 |
| JL | 81 | 110 | 2 | 5 | 08/83-07/88 | Audi Coupe |
| JL | 81 | 110 | 2 | 5 | 08/83-07/84 | Audi 80 |
| JL | 81 | 110 | 2 | 5 | 10/84-03/87 | Audi 90 |
| JN | 66 | 90 | 1,8 | 4 | 01/85-07/88 | Audi Coupe |
| JN | 66 | 90 | 1,8 | 4 | 08/83-12/91 | Audi 80 |
| JN | 66 | 90 | 1,8 | 4 | 08/83-07/84 | Audi 80 |
| JN | 66 | 90 | 1,8 | 4 | 06/84-03/87 | Audi 90 |
| JS | 85 | 115 | 2 | 5 | 08/83-07/86 | Audi Coupe |
| JS | 85 | 115 | 2 | 5 | 08/82-07/84 | Audi 80 |
| JS | 85 | 115 | 2 | 5 | 08/82-07/84 | Audi 80 |
| JS | 85 | 115 | 2 | 5 | 08/82-07/84 | Audi 80 |
| JS | 85 | 115 | 2 | 5 | 10/84-03/87 | Audi 90 |
| JT | 89 | 121 | 2,2 | 5 | 08/85-12/87 | Audi Coupe |
| JT | 89 | 121 | 2,2 | 5 | 08/85-07/86 | Audi 90 |
| JT | 89 | 121 | 2,2 | 5 | 08/85-03/87 | Audi 90 |
| JU | 55 | 75 | 1,6 | 4 | 08/83-03/87 | Audi 80 |
| JV | 66 | 90 | 1,8 | 4 | 01/85-07/87 | Audi Coupe |
| JV | 66 | 90 | 1,8 | 4 | 08/83-07/88 | Audi 80 |
| JW | 66 | 90 | 1,8 | 4 | 03/83-07/89 | Audi 100 |
| JW | 66 | 90 | 1,8 | 4 | 08/86-12/90 | Audi 100 |
| JW | 66 | 90 | 1,8 | 4 | 08/86-12/87 | Audi 100 |
| JY | 134 | 182 | 2,2 | 5 | 08/83-07/86 | Audi 200 |
| JY | 134 | 182 | 2,2 | 5 | 11/84-01/87 | Audi 200 |
| JY | 134 | 182 | 2,2 | 5 | 08/86-09/86 | Audi 200 |
| KE | 96 | 131 | 2,2 | 5 | 08/81-07/84 | Audi Coupe |
| KF | 96 | 131 | 2,2 | 5 | 05/83-07/84 | Audi 100 |
| KF | 96 | 131 | 2,2 | 5 | 08/82-07/84 | Audi 100 |
| KF | 96 | 131 | 2,2 | 5 | 08/82-07/84 | Audi 100 |
| KG | 134 | 182 | 2,2 | 5 | 08/83-12/87 | Audi 200 |
| KH | 100 | 136 | 2,2 | 5 | 08/83-07/85 | Audi 200 |
| KH | 100 | 136 | 2,2 | 5 | 08/83-07/85 | Audi 200 |
| KJ | 125 | 170 | 2,2 | 5 | 08/81-09/82 | Audi 200 |
| KK | 100 | 136 | 2,2 | 5 | 08/82-07/84 | Audi 80 |
| KL | 96 | 131 | 2,2 | 5 | 08/82-07/84 | Audi Coupe |
| KL | 96 | 131 | 2,2 | 5 | 08/82-07/84 | Audi 80 |
| KM | 85 | 115 | 2,1 | 5 | 08/82-07/83 | Audi Coupe |
| KP | 85 | 115 | 2 | 5 | 08/84-12/87 | Audi 100 |
| KU | 101 | 137 | 2,23 | 5 | 08/84-12/90 | Audi 100 |
| KU | 101 | 137 | 2,23 | 5 | 08/84-07/85 | Audi 200 |
| KV | 98 | 133 | 2,2 | 5 | 08/84-07/91 | Audi Coupe |
| KV | 98 | 133 | 2,2 | 5 | 08/87-07/88 | Audi Coupe |
| KV | 98 | 133 | 2,2 | 5 | 06/84-12/91 | Audi 90 |
| KW | 225 | 306 | 2,2 | 5 | 05/84-07/87 | Audi SPORT |
| KX | 88 | 120 | 2,23 | 5 | 01/85-07/88 | Audi Coupe |
| KX | 88 | 120 | 2,23 | 5 | 01/85-03/87 | Audi 90 |
| KZ | 85 | 115 | 2,23 | 5 | 08/84-09/86 | Audi 100 |
| KZ | 85 | 115 | 2,23 | 5 | 08/86-09/86 | Audi 100 |
| MB | 147 | 200 | 2,2 | 5 | 08/87-07/89 | Audi Quattro |
| MC | 121 | 165 | 2,23 | 5 | 03/86-12/90 | Audi 100 |
| MC | 121 | 165 | 2,23 | 5 | 01/88-12/90 | Audi 100 |
| MC | 121 | 165 | 2,23 | 5 | 01/85-11/90 | Audi 200 |
| MC | 121 | 165 | 2,23 | 5 | 08/85-11/90 | Audi 200 |
| MC | 121 | 165 | 2,23 | 5 | 08/88-11/90 | Audi 200 |
| MC | 121 | 165 | 2,23 | 5 | 01/85-11/90 | Audi 200 |
| MG | 82 | 112 | 1,8 | 4 | 08/85-03/87 | Audi 4000 |
| MU | 82 | 112 | 1,8 | 4 | 06/84-03/87 | Audi 80 |
| NC | 75 | 102 | 2 | 5 | 03/88-12/90 | Audi 100 |
| NE | 66 | 90 | 1,8 | 4 | 08/84-12/91 | Audi 80 |
| NF | 100 | 136 | 2,3 | 5 | 08/86-12/90 | Audi 100 |
| NF | 100 | 136 | 2,3 | 5 | 10/86-12/90 | Audi 100 |
| NF | 100 | 136 | 2,3 | 5 | 08/86-12/90 | Audi 100 |
| NG | 98 | 133 | 2,3 | 5 | 06/91-07/94 | Audi Cabrio |
| NG | 98 | 133 | 2,3 | 5 | 08/86-07/94 | Audi Coupe |
| NG | 98 | 133 | 2,3 | 5 | 09/91-11/94 | Audi 80 |
| NG | 98 | 133 | 2,3 | 5 | 04/87-12/91 | Audi 90 |
| NM | 118 | 160 | 2 | 5 | 08/90-07/91 | Audi Coupe |
| NM | 118 | 160 | 2 | 5 | 11/88-07/91 | Audi Coupe |
| NM | 118 | 160 | 2 | 5 | 01/88-12/91 | Audi 90 |
| NP | 66 | 90 | 1,8 | 4 | 10/84-12/90 | Audi 100 |
| PH | 66 | 90 | 1,8 | 4 | 04/85-12/90 | Audi 100 |
| PM | 66 | 90 | 1,8 | 4 | 03/88-12/91 | Audi 80 |
| PP | 51 | 70 | 1,6 | 4 | 08/89-12/91 | Audi 80 |
| PP | 51 | 70 | 1,6 | 4 | 03/87-07/89 | Audi 80 |
| PR | 100 | 136 | 2,2 | 5 | 08/89-12/90 | Audi 100 |
| HP | 85 | 115 | 2 | 5 | 04/87-12/91 | Audi 90 |
| PT | 184 | 250 | 3,6 | 8 | 08/89-07/90 | Audi V8 |
| PT | 184 | 250 | 3,6 | 8 | 08/90-07/91 | Audi V8 |
| PT | 184 | 250 | 3,6 | 8 | 10/88-11/93 | Audi V8 |
| PV | 81 | 110 | 1,8 | 4 | 08/86-07/88 | Audi Coupe |
| PV | 81 | 110 | 1,8 | 4 | 03/85-03/87 | Audi 80 |
| PX | 88 | 120 | 2,2 | 5 | 08/85-07/86 | Audi 100 |
| RA | 59 | 80 | 1,6 | 4 | 04/88-07/90 | Audi 80 |
| RA | 59 | 80 | 1,6 | 4 | 04/88-07/90 | Audi 90 |
| RN | 55 | 75 | 1,6 | 4 | 08/86-12/91 | Audi 80 |
| RR | 162 | 220 | 2,2 | 5 | 08/89-07/91 | Audi Quattro |
| RS | 55 | 75 | 1,8 | 4 | 10/86-12/87 | Audi 100 |
| RT | 85 | 115 | 2 | 5 | 01/88-12/90 | Audi 100 |
| RU | 55 | 75 | 1,8 | 4 | 10/86-01/90 | Audi 80 |
| SA | 55 | 75 | 1,6 | 4 | 02/86-03/87 | Audi 80 |
| SB | 59 | 80 | 1,6 | 4 | 04/89-12/91 | Audi 80 |
| SB | 59 | 80 | 1,6 | 4 | 04/89-12/91 | Audi 90 |
| SD | 83 | 113 | 1,9 | 4 | 09/86-07/88 | Audi 80 |
| SD | 83 | 113 | 1,9 | 4 | 08/87-07/88 | Audi 80 |
| SD | 83 | 113 | 1,9 | 4 | 08/87-07/88 | Audi 80 |
| SE | 48 | 65 | 1,4 | 4 | 08/86-07/88 | Audi 80 |
| SF | 64 | 87 | 1,8 | 4 | 02/86-07/88 | Audi Coupe |
| SF | 64 | 87 | 1,8 | 4 | 02/86-07/90 | Audi 80 |
| SH | 65 | 88 | 1,8 | 4 | 02/86-07/90 | Audi 100 |
| SK | 83 | 113 | 2 | 5 | 02/86-07/86 | Audi Coupe |
| SK | 83 | 113 | 2 | 5 | 02/86-03/87 | Audi 90 |
| SL | 83 | 113 | 2 | 5 | 02/86-12/87 | Audi 100 |
| WA | 85 | 115 | 2 | 4 | 06/76-07/79 | Audi 100 |
| WB | 85 | 115 | 2,2 | 5 | 04/78-07/82 | Audi 100 |
| WB | 85 | 115 | 2,2 | 5 | 08/82-07/84 | Audi 100 |
| WB | 85 | 115 | 2,2 | 5 | 08/82-07/84 | Audi 100 |
| WC | 100 | 136 | 2,2 | 5 | 08/76-07/84 | Audi 100 |
| WC | 100 | 136 | 2,2 | 5 | 10/79-07/84 | Audi 200 |
| WE | 85 | 115 | 2,1 | 5 | 08/79-07/80 | Audi 100 |
| WE | 85 | 115 | 2,1 | 5 | 03/77-07/79 | Audi 100 |
| WE | 85 | 115 | 2,1 | 5 | 08/79-07/81 | Audi 100 |
| WE | 85 | 115 | 2,1 | 5 | 08/79-07/80 | Audi 100 |
| WE | 85 | 115 | 2,1 | 5 | 03/77-07/82 | Audi 100 |
| WE | 85 | 115 | 2,1 | 5 | 03/77-07/80 | Audi 100 |
| WE | 85 | 115 | 2,1 | 5 | 08/81-07/83 | Audi 80 |
| WE | 85 | 115 | 2,1 | 5 | 08/82-07/83 | Audi 80 |
| WE | 85 | 115 | 2,1 | 5 | 10/80-07/81 | Audi 80 |
| WE | 85 | 115 | 2,1 | 5 | 10/80-07/83 | Audi 80 |
| WE | 79 | 107 | 2,1 | 5 | 04/81-07/82 | Audi Coupe |
| WE | 79 | 107 | 2,1 | 5 | 08/81-07/82 | Audi Coupe |
| WE | 79 | 107 | 2,1 | 5 | 03/77-07/79 | Audi 100 |
| WE | 79 | 107 | 2,1 | 5 | 08/81-07/82 | Audi 100 |
| WE | 79 | 107 | 2,1 | 5 | 08/81-07/83 | Audi 80 |
| WG | 100 | 136 | 2,2 | 5 | 02/78-07/79 | Audi 100 |
| WG | 100 | 136 | 2,2 | 5 | 08/76-07/80 | Audi 100 |
| WH | 74 | 100 | 1,9 | 5 | 08/80-07/84 | Audi 100 |
| WH | 74 | 100 | 1,9 | 5 | 08/81-07/82 | Audi 100 |
| WJ | 125 | 170 | 2,2 | 5 | 10/79-09/82 | Audi 200 |
| WK | 100 | 136 | 2,2 | 5 | 10/79-09/82 | Audi 200 |
| WN | 85 | 115 | 1,9 | 5 | 10/80-07/83 | Audi Coupe |
| WN | 85 | 115 | 1,9 | 5 | 08/81-07/83 | Audi 80 |
| WR | 147 | 200 | 2,2 | 5 | 07/80-07/87 | Audi Quattro |
| WS | 125 | 170 | 2,2 | 5 | 08/80-12/81 | Audi 200 |
| WT | 58 | 79 | 1,7 | 4 | 08/80-07/83 | Audi 80 |
| WU | 79 | 107 | 2,2 | 5 | 08/82-07/84 | Audi 100 |
| WU | 79 | 107 | 2,2 | 5 | 08/83-07/84 | Audi 100 |
| WV | 55 | 75 | 1,6 | 4 | 08/81-07/83 | Audi 80 |
| WX | 119 | 162 | 2,2 | 5 | 08/87-07/89 | Audi Quattro |
| WX | 119 | 162 | 2,2 | 5 | 08/84-07/87 | Audi Quattro |
| WY | 55 | 75 | 1,6 | 4 | 09/79-07/81 | Audi 80 |
| WY | 55 | 75 | 1,6 | 4 | 08/81-07/83 | Audi 80 |
| WZ | 55 | 75 | 1,6 | 4 | 08/78-08/79 | Audi 80 |
| XX | 74 | 100 | 1,6 | 4 | 09/73-08/75 | Audi 80 |
| YG | 61 | 83 | 1,6 | 4 | 09/75-07/76 | Audi 80 |
| YG | 61 | 83 | 1,6 | 4 | 08/78-08/79 | Audi 80 |
| YG | 61 | 83 | 1,6 | 4 | 08/76-07/78 | Audi 80 |
| YH | 61 | 83 | 1,6 | 4 | 09/79-07/80 | Audi 80 |
| YH | 61 | 83 | 1,6 | 4 | 08/76-07/78 | Audi 80 |
| YH | 61 | 83 | 1,6 | 4 | 09/79-07/80 | Audi 80 |
| YJ | 55 | 75 | 1,5 | 4 | 09/74-08/75 | Audi 80 |
| YJ | 55 | 75 | 1,5 | 4 | 09/74-08/75 | Audi 80 |
| YK | 61 | 83 | 1,6 | 4 | 08/78-08/79 | Audi 80 |
| YN | 55 | 75 | 1,6 | 4 | 01/81-07/81 | Audi Coupe |
| YN | 55 | 75 | 1,6 | 4 | 09/75-07/81 | Audi 80 |
| YN | 55 | 75 | 1,6 | 4 | 09/75-07/78 | Audi 80 |
| YP | 63 | 85 | 1,6 | 4 | 09/75-12/82 | Audi 80 |
| YP | 63 | 85 | 1,6 | 4 | 01/81-07/81 | Audi 80 |
| YP | 63 | 85 | 1,6 | 4 | 09/75-07/78 | Audi 80 |
| YS | 81 | 110 | 1,6 | 4 | 09/75-07/78 | Audi 80 |
| YT | 51 | 70 | 1,6 | 4 | 08/78-01/79 | Audi 80 |
| YV | 63 | 85 | 1,6 | 4 | 08/76-07/82 | Audi 100 |
| YV | 63 | 85 | 1,6 | 4 | 08/81-07/82 | Audi 100 |
| YY | 51 | 70 | 1,6 | 4 | 02/79-07/81 | Audi 80 |
| YZ | 81 | 110 | 1,6 | 4 | 08/78-07/82 | Audi 80 |
| ZA | 40 | 54 | 1,3 | 4 | 05/72-07/78 | Audi 80 |
| ZA | 40 | 54 | 1,3 | 4 | 05/72-07/78 | Audi 80 |
| ZB | 55 | 75 | 1,5 | 4 | 05/72-09/74 | Audi 80 |
| ZB | 55 | 75 | 1,5 | 4 | 05/72-08/74 | Audi 80 |
| ZC | 63 | 85 | 1,5 | 4 | 05/72-08/75 | Audi 80 |
| ZC | 63 | 85 | 1,5 | 4 | 01/75-07/76 | Audi 80 |
| ZC | 63 | 85 | 1,5 | 4 | 05/72-08/75 | Audi 80 |
| ZF | 44 | 60 | 1,3 | 4 | 05/72-07/78 | Audi 80 |