29:
256:, which are connected to a third single Siemens control unit, called EML. The engine utilizes four knock sensors mounted on the heads, a cam position sensor mounted on the right head and two crank sensors, one for each ECU. Throttle by wire is used. Similar to its predecessor, the M70, spark distributors are still present for each cylinder bank.
440:
In 1989, as part of a feasibility study, BMW's engine development department produced a four-valve version of its V12 engine. Only one engine was produced, having an up-sized variant of the M70B50 engine called the M72B54. Bore and stroke was increased to 85mm and 79mm and the total displacement of
245:
and with two valves per cylinder. However, BMW engineers did create a prototype four-valve per cylinder V12, called the M72, which developed 265 kW (360 PS; 355 hp) and 530 N⋅m (391 lb⋅ft) of torque. However, this 48-valve engine did not fulfill the comfort demands of the
751:
232:
increase of 1 mm (0.04 in) ending with a cylinder bore of 85mm and a stroke increase of 4 mm (0.16 in) to have a final piston stroke of 79mm. While most other engines in the BMW range had switched to
289:
of a hydrogen-air mixture, and the fact that the engine was designed as a Bi-Fuel (petrol and hydrogen) engine, the power output is reduced by 38 per cent compared to the petrol only version of the engine.
744:
767:
760:
737:
441:
5.4L was achieved, matching the values of the standard M73 engine. The power and torque both increased to 265 kW (355 hp) and 530 N⋅m (391 lb⋅ft) respectively.
395:
Due to more stringent emissions standards, the 1999 model year marked the addition of an electronically heated catalyst, variable MAP thermostat, and water cooled alternator.
283:
1274:
552:
451:
285:
lean burn concept, which allows quality torque control similar to a Diesel engine (i. e. no engine throttling). Due to the lower
228:
Compared with its M70 predecessor, the M73 features an updated roller-rocker valve-train and an increased displacement, due to a
28:
729:
673:
190:
500:
416:
217:
422:
428:
642:
Schüers, Andreas; Abel, Alois; Fickel, Hans-Christian; Preis, Michael; Artmann, Richard (February 2002).
611:
Schüers, Andreas; Abel, Alois; Fickel, Hans-Christian; Preis, Michael; Artmann, Richard (February 2002).
580:
Schüers, Andreas; Abel, Alois; Fickel, Hans-Christian; Preis, Michael; Artmann, Richard (February 2002).
262:
1269:
1264:
1168:
66:
724:
253:
121:
79:
41:
410:
403:
383:
376:
286:
703:
242:
234:
194:
472:
655:
624:
593:
99:
643:
612:
581:
1258:
229:
201:
89:
525:
246:
large sedan class in all respects and, as a result, did not go into production.
238:
198:
109:
72:
681:
1065:
1060:
250:
1228:
1208:
1196:
1186:
1173:
1151:
1134:
1127:
1115:
1110:
1105:
1090:
1076:
1046:
1041:
1037:
1022:
1017:
1008:
999:
990:
985:
980:
975:
970:
955:
945:
938:
933:
928:
920:
916:
911:
907:
902:
897:
892:
659:
628:
597:
213:
209:
205:
174:
164:
142:
114:
733:
183:
46:
208:
and was produced from 1993 to 2002. It was used in the BMW
1242: Production of previous model continues in parallel
265:
766:— BMW automotive petrol engines: 1980s to 2000s —
170:
160:
155:
135:
130:
120:
108:
98:
88:
78:
65:
60:
52:
40:
35:
21:
277:
644:"Der Zwölfzylinder-Wasserstoffmotor im BMW 750hL"
613:"Der Zwölfzylinder-Wasserstoffmotor im BMW 750hL"
582:"Der Zwölfzylinder-Wasserstoffmotor im BMW 750hL"
501:"BMW Super Bild Of The Day: 5.4 liter BMW V12"
259:The hydrogen versions of the engine feature a
745:
575:
573:
495:
493:
8:
704:"BMW M72 twelve-cylinder four-valve engine"
553:"E38 750iL Engine electrical system engine"
752:
738:
730:
357:300 N⋅m (221 lb⋅ft) at 3000/min
297:
27:
18:
264:
779:
16:Reciprocating internal combustion engine
464:
790:
787:
784:
454:- Best Above 4.0 Litre category winner
354:150 kW (201 hp) at 5,800 rpm
782:
323:5,379 cc (328.2 cu in)
7:
674:"BMW M70, M72 and M73 V12 Engines"
14:
452:International Engine of the Year
278:{\displaystyle \lambda \geq 3.0}
249:These engines have two separate
648:MTZ Motortechnische Zeitschrift
617:MTZ Motortechnische Zeitschrift
586:MTZ Motortechnische Zeitschrift
331:490 N⋅m (361 lb⋅ft)
1:
527:M73 Training Reference Manual
341:
473:"Information on M73 engines"
318:
1291:
1237:
1223:
1221:
1214:
1203:
1190:
1163:
1146:
1144:
1122:
1100:
1085:
1083:
1071:
1032:
1028:
1021:
997:
968:
961:
901:
326:240 kW (322 hp)
84:5.4 L (5,379 cc)
1275:Gasoline engines by model
1235:
1227:
1225:
1218:
1212:
1207:
1205:
1195:
1185:
1183:
1180:
1172:
1167:
1165:
1161:
1158:
1150:
1148:
1141:
1133:
1131:
1126:
1124:
1114:
1109:
1104:
1102:
1097:
1089:
1087:
1075:
1073:
1069:
1064:
1059:
1054:
1050:
1045:
1036:
1034:
1026:
1015:
1007:
1005:
1003:
989:
984:
979:
974:
965:
959:
954:
952:
944:
942:
937:
932:
927:
915:
906:
896:
890:
887:
777:
423:Symbol Design Lavazza GTX
417:Rolls-Royce Silver Seraph
330:
325:
322:
218:Rolls-Royce Silver Seraph
104:79 mm (3.11 in)
94:85 mm (3.35 in)
26:
1240:
882:
879:
876:
873:
870:
867:
864:
861:
858:
855:
852:
849:
846:
843:
840:
837:
834:
831:
828:
825:
822:
819:
816:
813:
810:
807:
804:
801:
798:
795:
678:www.unixnerd.demon.co.uk
243:single overhead camshaft
239:four valves per cylinder
235:dual overhead camshafts
122:Valvetrain drive system
429:Monte Carlo Automobile
279:
280:
263:
254:engine control units
725:List of BMW engines
204:which replaced the
191:naturally-aspirated
660:10.1007/BF03226613
629:10.1007/BF03226613
598:10.1007/BF03226613
275:
1252:
1251:
1247:
1246:
770:
764:
684:on 7 January 2016
477:www.bmwheaven.com
364:
363:
241:, the M73 used a
180:
179:
1282:
1243:
1241:
780:
768:
762:
754:
747:
740:
731:
712:
711:
700:
694:
693:
691:
689:
680:. Archived from
670:
664:
663:
639:
633:
632:
608:
602:
601:
577:
568:
567:
565:
563:
549:
543:
542:
540:
538:
532:
522:
516:
515:
513:
511:
497:
488:
487:
485:
483:
469:
436:M72B54 prototype
406:750i/750iL/L7/hL
298:
284:
282:
281:
276:
31:
19:
1290:
1289:
1285:
1284:
1283:
1281:
1280:
1279:
1255:
1254:
1253:
1248:
1239:
1238:
1056:
773:
758:
721:
716:
715:
708:www.mwrench.com
702:
701:
697:
687:
685:
672:
671:
667:
641:
640:
636:
610:
609:
605:
579:
578:
571:
561:
559:
557:www.realoem.com
551:
550:
546:
536:
534:
530:
524:
523:
519:
509:
507:
505:www.bmwblog.com
499:
498:
491:
481:
479:
471:
470:
466:
461:
447:
438:
393:
369:
351:M73 (Hydrogen)
332:
327:
296:
261:
260:
226:
151:
56:1993–2002
17:
12:
11:
5:
1288:
1286:
1278:
1277:
1272:
1267:
1257:
1256:
1250:
1249:
1245:
1244:
1236:
1233:
1232:
1226:
1224:
1222:
1220:
1216:
1215:
1213:
1211:
1206:
1204:
1201:
1200:
1194:
1189:
1184:
1182:
1178:
1177:
1171:
1166:
1164:
1162:
1160:
1156:
1155:
1149:
1147:
1145:
1143:
1139:
1138:
1132:
1130:
1125:
1123:
1120:
1119:
1113:
1108:
1103:
1101:
1099:
1095:
1094:
1088:
1086:
1084:
1081:
1080:
1074:
1072:
1070:
1068:
1063:
1058:
1052:
1051:
1049:
1044:
1035:
1033:
1030:
1029:
1027:
1025:
1020:
1013:
1012:
1006:
1004:
1002:
995:
994:
988:
983:
978:
973:
967:
963:
962:
960:
958:
953:
950:
949:
943:
941:
936:
931:
925:
924:
914:
905:
900:
895:
889:
885:
884:
881:
878:
875:
872:
869:
866:
863:
860:
857:
854:
851:
848:
845:
842:
839:
836:
833:
830:
827:
824:
821:
818:
815:
812:
809:
806:
803:
800:
797:
793:
792:
789:
786:
783:
778:
775:
774:
759:
757:
756:
749:
742:
734:
728:
727:
720:
717:
714:
713:
695:
665:
634:
603:
569:
544:
517:
489:
463:
462:
460:
457:
456:
455:
446:
443:
437:
434:
433:
432:
425:
419:
413:
407:
398:Applications:
392:
389:
388:
387:
380:
371:Applications:
368:
365:
362:
361:
358:
355:
352:
348:
347:
344:
338:
337:
334:
329:
324:
321:
315:
314:
311:
308:
305:
302:
295:
292:
274:
271:
268:
251:Bosch Motronic
225:
222:
178:
177:
172:
168:
167:
162:
158:
157:
153:
152:
150:
149:
146:
139:
137:
133:
132:
128:
127:
124:
118:
117:
112:
106:
105:
102:
96:
95:
92:
86:
85:
82:
76:
75:
69:
63:
62:
58:
57:
54:
50:
49:
44:
38:
37:
33:
32:
24:
23:
22:BMW M73 engine
15:
13:
10:
9:
6:
4:
3:
2:
1287:
1276:
1273:
1271:
1268:
1266:
1263:
1262:
1260:
1234:
1230:
1217:
1210:
1202:
1198:
1193:
1188:
1179:
1175:
1170:
1157:
1153:
1140:
1136:
1129:
1121:
1117:
1112:
1107:
1096:
1092:
1082:
1078:
1067:
1062:
1053:
1048:
1043:
1039:
1031:
1024:
1019:
1014:
1010:
1001:
996:
992:
987:
982:
977:
972:
964:
957:
951:
947:
940:
935:
930:
926:
922:
918:
913:
909:
904:
899:
894:
886:
794:
781:
776:
772:
765:
755:
750:
748:
743:
741:
736:
735:
732:
726:
723:
722:
718:
709:
705:
699:
696:
683:
679:
675:
669:
666:
661:
657:
653:
649:
645:
638:
635:
630:
626:
622:
618:
614:
607:
604:
599:
595:
591:
587:
583:
576:
574:
570:
558:
554:
548:
545:
529:
528:
521:
518:
506:
502:
496:
494:
490:
478:
474:
468:
465:
458:
453:
449:
448:
444:
442:
435:
430:
426:
424:
420:
418:
414:
412:
408:
405:
401:
400:
399:
396:
390:
385:
381:
379:750i/750iL/L7
378:
374:
373:
372:
366:
359:
356:
353:
350:
349:
345:
343:
340:
339:
335:
320:
317:
316:
312:
309:
306:
303:
300:
299:
293:
291:
288:
272:
269:
266:
257:
255:
252:
247:
244:
240:
236:
231:
223:
221:
219:
215:
211:
207:
203:
202:petrol engine
200:
196:
192:
188:
185:
176:
173:
169:
166:
163:
159:
154:
147:
144:
141:
140:
138:
134:
129:
125:
123:
119:
116:
113:
111:
107:
103:
101:
100:Piston stroke
97:
93:
91:
90:Cylinder bore
87:
83:
81:
77:
74:
70:
68:
67:Configuration
64:
59:
55:
51:
48:
45:
43:
39:
34:
30:
25:
20:
1191:
707:
698:
686:. Retrieved
682:the original
677:
668:
651:
647:
637:
620:
616:
606:
589:
585:
560:. Retrieved
556:
547:
535:. Retrieved
526:
520:
508:. Retrieved
504:
480:. Retrieved
476:
467:
439:
411:Cardi Curara
397:
394:
370:
333:at 3,900 rpm
328:at 5,000 rpm
304:Displacement
258:
248:
227:
214:E31 8 Series
210:E38 7 Series
186:
181:
80:Displacement
42:Manufacturer
1270:V12 engines
1265:BMW engines
1055:Straight-6
966:Straight-6
888:Straight-4
533:. p. 2
161:Predecessor
1259:Categories
1219:V12 turbo
623:(2): 103.
592:(2): 100.
459:References
421:2009–2010
415:1999-2002
402:1998-2001
382:1994-1999
375:1994-1998
156:Chronology
131:Combustion
110:Valvetrain
53:Production
1231:>>
1199:>>
1176:>>
1154:>>
1142:V8 turbo
1137:>>
1118:>>
1093:>>
1079:>>
1018:M88 / M90
1011:>>
998:<<
993:>>
948:>>
923:>>
654:(2): 99.
270:≥
267:λ
171:Successor
136:Fuel type
1016:<<
969:<<
891:<<
763:previous
719:See also
688:5 August
562:10 April
537:10 April
510:5 August
482:5 August
431:Rascasse
391:M73TUB54
342:M73TUB54
148:Hydrogen
36:Overview
1169:E41/P80
771: »
761:«
301:Version
206:BMW M70
175:BMW N73
165:BMW M70
1057:turbo
929:M12/13
791:2000s
788:1990s
785:1980s
445:Awards
367:M73B54
319:M73B54
310:Torque
294:Models
224:Design
145:95 RON
143:Petrol
61:Layout
531:(PDF)
450:1999
427:2013
409:1998
386:850Ci
360:2001
346:1998
336:1994
313:Year
307:Power
237:with
189:is a
126:Chain
1181:V12
1159:V10
1066:M106
1061:M102
769:next
690:2017
564:2017
539:2017
512:2017
484:2017
230:bore
216:and
195:SOHC
182:The
115:SOHC
71:60°
1229:N74
1209:S70
1197:N73
1192:M73
1187:M70
1174:S85
1152:N63
1135:S65
1128:S62
1116:N62
1111:M62
1106:M60
1098:V8
1091:N55
1077:N54
1047:S54
1042:S52
1038:S50
1023:S38
1009:N53
1000:M30
991:N52
986:M54
981:M52
976:M50
971:M20
956:S14
946:N43
939:M44
934:M42
921:N46
917:N45
912:N42
908:N40
903:M43
898:M40
893:M10
656:doi
625:doi
594:doi
404:E38
384:E31
377:E38
287:LHV
273:3.0
199:V12
187:M73
184:BMW
73:V12
47:BMW
1261::
1040:/
919:/
910:/
883:9
853:9
823:9
706:.
676:.
652:63
650:.
646:.
621:63
619:.
615:.
590:63
588:.
584:.
572:^
555:.
503:.
492:^
475:.
220:.
212:,
197:,
193:,
880:8
877:7
874:6
871:5
868:4
865:3
862:2
859:1
856:0
850:8
847:7
844:6
841:5
838:4
835:3
832:2
829:1
826:0
820:8
817:7
814:6
811:5
808:4
805:3
802:2
799:1
796:0
753:e
746:t
739:v
710:.
692:.
662:.
658::
631:.
627::
600:.
596::
566:.
541:.
514:.
486:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
