VEMO BMW 3 (E46) Gemischaufbereitung

Gewicht [kg]: 0,19
Teilehersteller/Anbieter: VEMO
Referenznummer(n) OEM: 1061783, V20-11-0104
Referenznummer(n) OE: 13 51 7 787 186, 13517787186, 7 787 186, 7787186
Produkttyp: Druckregelventil, Common-Rail-System
Ventilart: Steuerventil

Gewindemaß: M18 x 1,5
Länge [mm]: 300
Lambdasonde: Gewinde vorgefettet
Leiteranzahl: 4
Teilehersteller/Anbieter: VEMO
Referenznummer(n) OEM: 1059932, V20-76-0026
Referenznummer(n) OE: 1 247 406, 1 247 407, 1 433 075, 1 742 049, 1 742 050, 11 78 1 247 407, 11 78 1 433 075, 11 78 1 742 049, 11 78 1 742 050, 11 78 1 742 053, 11 78 7 513 962, 11781247407, 11781433075, 11781742049, 11781742050, 11781742053, 11787513962, 1247406, 1247407, 124740705, 1433075, 1742049, 1742050, 7 513 962, 7513962, PB20317, PB20364, PB20364PA, SG1108, SG1705
Produkttyp: Lambdasonde
Sensorart: Lambdasonde
Steckergehäuseform: rund
Vergleichsnummer: Lambda Sonde, für Katalysator

Referenznummer(n) OEM: 1075349, V20-72-0456
Referenznummer(n) OE: 11 61 3 449 116, 11613449116, 13 62 2 243 946, 13622243946, 2 243 946, 210002488, 2243946, 3 449 116, 3449116, 58 50 800, 5850800, 6670669, 90 509 138, 90509138, LR006796, LR008796, NNK000050, NSC50050, STC2302
Produkttyp: Sensor, Ansauglufttemperatur

Einbauposition: vorne, rechts
Gewicht [kg]: 0,15
Kabellänge [mm]: 650,00
Lambdasonde: Gewinde vorgefettet
Teilehersteller/Anbieter: VEMO
Referenznummer(n) OEM: 1077710, V30-76-0019
Referenznummer(n) OE: 001 540 10 17, 0015401017, A 001 540 10 17, A0015401017
Produkttyp: Lambdasonde
Produktart: Lambdasonde
Sensorart: Lambdasonde
Vergleichsnummer: Regelsonde, Lambda Sonde, für Katalysator

Gewicht [kg]: 0,12
Gewindemaß: M18 x 1,5
Kabellänge [mm]: 330,00
Länge [mm]: 350
Lambdasonde: Gewinde vorgefettet
Leiteranzahl: 4
Teilehersteller/Anbieter: VEMO
Referenznummer(n) OEM: 1059149, V20-76-0012
Referenznummer(n) OE: 1 247 406, 1 739 846, 11 78 1 247 406, 11 78 1 739 846, 11781247406, 11781739846, 1247406, 1739846, MHK000210
Produkttyp: Lambdasonde
Produktart: Lambdasonde
Sensorart: Lambdasonde
Steckergehäuseform: rund
Vergleichsnummer: Regelsonde, Lambda Sonde, für Katalysator

Gewicht [kg]: 0,26
Teilehersteller/Anbieter: VEMO
Referenznummer(n) OEM: 1044234, V30-72-0017
Referenznummer(n) OE: 1 433 565, 112 094 00 48, 112 094 00 48 part, 1120940048, 112094004880, 1120940048part, 1120940148, 13 62 1 433 565, 13621433565, 138960, 1433565, A 112 094 00 48, A 112 094 00 48 part, A1120940048, A1120940048part, A1120940148
Produkttyp: Luftmassenmesser

Referenznummer(n) OEM: 1042394, V48-72-0001
Referenznummer(n) OE: MHK 100620, MHK100620
Produkttyp: Luftmassenmesser

Referenznummer(n) OE: 1 845 928, 1845928, ERR 7171, ERR7171, YM2112B529BB
Produkttyp: Luftmassenmesser

Referenznummer(n) OE: 1 739 510, 13 62 1 739 510, 13 62 9 899 008, 13621739510, 13629899008, 1739510, NNK000020
Produkttyp: Sensor, Ansauglufttemperatur
Spannung [V]: 12

crossreference: FEBI BILSTEIN 175940, MEAT & DORIA 81548, MEAT & DORIA 81645E, HOFFER 7481710, HOFFER 7481645, SWAG 33 10 6779, SWAG 33 10 3199, BLUE PRINT ADBP700049, SWAG 33 10 3205, ERA 570331A, SWAG 33 10 4145, HOFFER 7481786, HOFFER 7481548, HOFFER 7481586E, NTK 92874, vika 99061598701, SWAG 33 10 3204, ERA 570013A, DELPHI ES21476-12B1, METZGER AUTOTEILE 0893005, MEAT & DORIA 81585, BLUE PRINT ADV187003C, METZGER AUTOTEILE 0893021, HOFFER 7481077, SWAG 33 10 3202, SWAG 33 10 3140, HOFFER 7481571, MEAT & DORIA 81652, METZGER AUTOTEILE 0893002, HOFFER 7481736, FEBI BILSTEIN 175944, MEAT & DORIA 81633E, BLUE PRINT ADBP700043, NTK 97459, NTK 93409, MEAT & DORIA 81566, MEAT & DORIA 811017, SWAG 33 10 3154, BREMI 75065, NTK 91719, MEAT & DORIA 81960, SWAG 33 10 4122, vika 99966201, HOFFER 7481087, HOFFER 7481096, MEAT & DORIA 81843, MEAT & DORIA 81647E, HOFFER 7481567, HOFFER 7481564, METZGER AUTOTEILE 0893009, HOFFER 7481092, METZGER AUTOTEILE 0893567, SWAG 33 10 3160, MEAT & DORIA 81573, NTK 95948, HOFFER 7481535, HOFFER 7481742E, METZGER AUTOTEILE 0893668, SWAG 33 10 3197, NTK 91954, HOFFER 7481881, vika 99060087301, MEAT & DORIA 81535, HOFFER 7481566, HOFFER 7481508, HOFFER 7481508E, ERA 570111A, METZGER AUTOTEILE 0893078, ERA 570091A, FEBI BILSTEIN 175948, AIC 71934, HOFFER 7481633E, FEBI BILSTEIN 175852, SWAG 33 10 4152, FEBI BILSTEIN 175874, FEBI BILSTEIN 175951, HOFFER 7481550, METZGER AUTOTEILE 0893079, SWAG 33 10 3156, FEBI BILSTEIN 175878, MEAT & DORIA 81097E, ERA 570056A, FEBI BILSTEIN 177430, ERA 570087A, METZGER AUTOTEILE 0893522, HOFFER 7481586, vika 99061822401, ERA 570059A, MEAT & DORIA 81544, HOFFER 7481091, MEAT & DORIA 81784, SWAG 33 10 3139, HOFFER 7481633, MEAT & DORIA 81647, HOFFER 7481573, FEBI BILSTEIN 175950, METZGER AUTOTEILE 0893248, BLUE PRINT ADBP700095, NTK 91481, HOFFER 7481097E, ERA 570280A, FEBI BILSTEIN 175877, NTK 90392, ERA 570061, ERA 570030A, BLUE PRINT ADZ97001, HOFFER 7481091E, HOFFER 7481549E, MEAT & DORIA 81790, METZGER AUTOTEILE 0893260, FEBI BILSTEIN 175943, ABAKUS 120-08-231, FEBI BILSTEIN 103150, vika 99061822601, NTK 94683, ERA 570078A, MEAT & DORIA 81088, ERA 570312A, NTK 95854, HOFFER 7481654, HOFFER 7481635, SWAG 70 92 6297, BLUE PRINT ADBP700023, FEBI BILSTEIN 34388, HOFFER 7481645E, HOFFER 7481535E, HOFFER 7481863, MEAT & DORIA 81736, MEAT & DORIA 81654, SWAG 33 10 6778, MEAT & DORIA 81724, SWAG 33 10 3161, HOFFER 7481088, MEAT & DORIA 81092, MEAT & DORIA 81633, MEAT & DORIA 81567, MEAT & DORIA 81881, SWAG 33 10 3758, MEAT & DORIA 81786, MEAT & DORIA 81583, BLUE PRINT ADK87051, METZGER AUTOTEILE 0893660, HOFFER 7481624, vika 99061819001, FEBI BILSTEIN 175775, MEAT & DORIA 81097, ABAKUS 120-08-229, HOFFER 7481656E, MEAT & DORIA 81024, MAGNETI MARELLI 466016355156, MEAT & DORIA 81586E, HOFFER 7481509E, NTK 95083, GEBE 9 7246 1, MEAT & DORIA 81090E, MEAT & DORIA 81762, MEAT & DORIA 81909, HOFFER 7481784, DELPHI ES21325-12B1, FEBI BILSTEIN 175879, SWAG 33 10 3162, MEAT & DORIA 81508, NTK 1661, METZGER AUTOTEILE 0893027, ERA 570077A, METZGER AUTOTEILE 0893483, BLUE PRINT ADZ97002, MEAT & DORIA 81645, FEBI BILSTEIN 177500, SWAG 30 93 4388, MEAT & DORIA 81762E, vika 99060088601, METZGER AUTOTEILE 0893157, SWAG 33 10 9182, MEAT & DORIA 81655E, MEAT & DORIA 81656E, ESEN SKV 09SKV909, MEAT & DORIA 81742, MEAT & DORIA 81624, MEAT & DORIA 81859, BLUE PRINT ADBP700045, NTK 90185, vika 99061822301, HOFFER 7481791E, MEAT & DORIA 81509, MEAT & DORIA 81509E, MEAT & DORIA 81856, BLUE PRINT ADBP700021, HOFFER 7481088E, HOFFER 74811017, MEAT & DORIA 81968, FEBI BILSTEIN 175880, GEBE 9 7023 1, FEBI BILSTEIN 29332, SWAG 33 10 4159, ERA 570112A, HOFFER 7481642, FEBI BILSTEIN 177487, BLUE PRINT ADC47059, METZGER AUTOTEILE 0893014, HOFFER 7481024, SWAG 33 10 4123, MEAT & DORIA 81091, NTK 92107, ERA 570030, HOFFER 7481655, ERA 570265A, NTK 94418, BLUE PRINT ADA107037, HOFFER 7481746, HOFFER 7481549, BLUE PRINT ADG070126, MEAT & DORIA 81655, NTK 92428, METZGER AUTOTEILE 0893022, MEAT & DORIA 81087E, BLUE PRINT ADBP700053, METZGER AUTOTEILE 0893197, HOFFER 7481097, NTK 1630, MEAT & DORIA 81096E, FEBI BILSTEIN 175853, FEBI BILSTEIN 175942, METZGER AUTOTEILE 0895590, MEAT & DORIA 81742E, ERA 570313A, MEAT & DORIA 81791E, HOFFER 7481548E, FEBI BILSTEIN 175946, MEAT & DORIA 81516, SWAG 40 92 9332, MEAT & DORIA 81549E, ERA 570096A, HOFFER 7481652, FEBI BILSTEIN 175917, FEBI BILSTEIN 37565, METZGER AUTOTEILE 0893016, NTK 97456, METZGER AUTOTEILE 0893482, ERA 570402A, FEBI BILSTEIN 175966, ERA 570334A, MAGNETI MARELLI 466016355121, HOFFER 7481960, SWAG 33 10 6769, MEAT & DORIA 81548E, MEAT & DORIA 81656, MEAT & DORIA 81630, METZGER AUTOTEILE 0893061, METZGER AUTOTEILE 0895650, vika 99060088301, SWAG 33 10 6784, HOFFER 7481655E, NTK 91213, HOFFER 7481516E, SWAG 33 10 3198, BLUE PRINT ADBP700079, FEBI BILSTEIN 177515, NTK 93485, MEAT & DORIA 81844, MEAT & DORIA 81710E, HOFFER 7481090E, HOFFER 7481762, MEAT & DORIA 81561, MEAT & DORIA 81685, HOFFER 7481859, SWAG 33 10 6788, HOFFER 7481544, SWAG 33 10 3159, FEBI BILSTEIN 175919, ERA 570037A, HOFFER 7481710E, MEAT & DORIA 81635, FEBI BILSTEIN 175843, MEAT & DORIA 81564, FEBI BILSTEIN 175949, FEBI BILSTEIN 37091, HOFFER 7481509, FEBI BILSTEIN 177284, HOFFER 7481561, HOFFER 7481516, NTK 90043, FEBI BILSTEIN 102540, ERA 570094A, FEBI BILSTEIN 179558, MEAT & DORIA 81535E, HOFFER 7481843, NTK 96027, MEAT & DORIA 81586, vika 99981598601, FEBI BILSTEIN 177519, HOFFER 7481856, HOFFER 7481630, NTK 91765, METZGER AUTOTEILE 0893062, SWAG 33 10 3089, BLUE PRINT ADG07058, NTK 95801, MEAT & DORIA 81642, SWAG 33 10 3195, HOFFER 7481656, MEAT & DORIA 81746, SWAG 33 10 4113, MEAT & DORIA 81516E, BLUE PRINT ADG07009, HOFFER 7481583, BLUE PRINT ADBP700044, MEAT & DORIA 81096, BLUE PRINT ADBP700104, FEBI BILSTEIN 45075, METZGER AUTOTEILE 0893067, vika 99060786801, NTY ESL-TY-002, MEAT & DORIA 81088E, HOFFER 7481090, FEBI BILSTEIN 175929, FEBI BILSTEIN 175952, SWAG 30 93 7565, NTK 97969, HOFFER 7481968, SWAG 33 10 3186, SWAG 33 10 4015, SWAG 33 10 3203, FEBI BILSTEIN 177445, HOFFER 7481652E, MEAT & DORIA 81863, MEAT & DORIA 81571, HOFFER 7481647E, FEBI BILSTEIN 177248, SWAG 33 10 3200, NTK 91535, HOFFER 7481685, NTK 97003, HOFFER 7481724, HOFFER 7481087E, vika 99981598801, vika 99061820101, ERA 570061A, FEBI BILSTEIN 177432, HOFFER 7481539, HOFFER 7481790, PREXAparts P150340, FEBI BILSTEIN 175910, GEBE 9 7164 1, SWAG 33 10 3994, MEAT & DORIA 81508E, MEAT & DORIA 81550, HOFFER 7481844, MEAT & DORIA 81710, MEAT & DORIA 81539, MAGNETI MARELLI 466016355199, MEAT & DORIA 81562, ERA 570271A, ABAKUS 120-08-064, SWAG 33 10 6781, HOFFER 7481762E, SWAG 33 10 3189, MEAT & DORIA 81791, HOFFER 7481096E, MEAT & DORIA 81549, HOFFER 7481791, ERA 570297A, HOFFER 7481562, MEAT & DORIA 81087, HOFFER 7481585, SWAG 33 10 6780, MEAT & DORIA 81091E, HOFFER 7481647, FEBI BILSTEIN 175875, vika 91141501, FEBI BILSTEIN 175932, MEAT & DORIA 81652E, ERA 570021A, METZGER AUTOTEILE 0893175, HOFFER 7481742, HOFFER 7481909, FEBI BILSTEIN 177446, METZGER AUTOTEILE 0893003, MEAT & DORIA 81090, vika 99061822701, BLUE PRINT ADBP700041, MEAT & DORIA 81077, AUTLOG AS2201, SWAG 33 10 6800, ERA 570311A, NTK 94594, NTK 95684, FEBI BILSTEIN 175922, ERA 570092A, ERA 570278A
Einbauposition: Abgaskrümmer, Vorderrohr, hinten, links, nach Katalysator, rechts, vor Katalysator, vorne
Gewicht [kg]: 0,09
Kabellänge [mm]: 210,00
Lambdasonde: Gewinde vorgefettet, beheizt, Planarsonde
Teilehersteller/Anbieter: VEMO
Referenznummer(n) OEM: 1065681, V99-76-0002
Referenznummer(n) OE: 0003122V004, 0015404217, 0015405117, 001540511728, 0015407117, 0015407217, 0015408417, 0015409017, 001540921726, 0025401017, 0025401517, 0025401617, 0025405617, 0035409718, 0046760863, 00467608630, 011906262CF, 021906262D, 022606262AB, 022606262AC, 022606262AH, 022606262AJ, 022606262AP, 022606262AT, 022606262B, 022606262BA, 022606262BG, 022606262BH, 022606262BJ, 022606262BK, 022606262BM, 022606262BP, 022606262BQ, 022606262BS, 022606262BT, 022606262C, 022606262CB, 022606262CC, 022606262CE, 022606262CF, 022606262F, 022606262G, 022606262K, 022606262L, 022606262M, 022606262S, 022906262AT, 030906265D, 03C906262F, 03C906262G, 03C906262H, 03C906262K, 03C906262L, 047906265C, 05040830150, 058906265, 058906265G, 06A906262, 06A906262A, 06A906262AJ, 06A906262AP, 06A906262BN, 06A906262BP, 06A906262C, 06A906262CB, 06A906262CH, 06A906262CQ, 06A906262D, 06A906262DB, 06A906262DC, 06A906262DP, 06A906262E, 06A906262EA, 06A906262EC, 06A906262EG, 06A906262EJ, 06A906262H, 06A906262K, 06A906262L, 06A906262R, 06A906265AA, 06A906265AQ, 06A906265J, 06B906262A, 06C906265F, 06C906265G, 06F906262AA, 06F906262AF, 06F906262AH, 06F906262BF, 06F906262BG, 06F906262E, 06F906262K, 06F906262N, 06G906262A, 06H906262A, 06J906262A, 06J906262K, 077906265J, 077906265P, 077906265S, 078906265AB, 078906265AD, 078906265Q, 078906265R, 079906265B, 079906265H, 079906265J, 07C906262BA, 07C906262BF, 07C906262BG, 07C906262BP, 07C906262BQ, 07E906262, 07L906265F, 07L906265G, 07L906265H, 07L906265J, 0855387, 0855401, 0855408, 0855409, 0855416, 0855427, 0855499, 0883271, 090424220, 090570968, 09120293, 09129954, 09129968, 09192148, 09192922, 09193148, 09195606, 09199469, 09199470, 09199590, 09202621, 093177153, 093177169, 093177450, 093190419, 093399904, 0K2NB18861, 1 316 156, 1 337 922, 1 376 444, 1 484 887, 11 78 4 503 356, 11 78 7 512 109, 11 78 7 526 263, 11 78 7 537 982, 11 78 7 539 137, 11 78 7 558 179, 11 78 7 589 146, 11 78 7 589 147, 11 78 7 596 909, 1118385, 1176912800, 11784503356, 11787512109, 11787526263, 11787537982, 11787539137, 11787558179, 11787589146, 11787589147, 11787596909, 12559848, 12562621, 12565680, 12565780, 12567127, 12567254, 12567497, 12568222, 12568223, 12570149, 12572707, 12572772, 12573168, 12575658, 12576131, 12576711, 12578574, 12578575, 12578576, 12580827, 12581119, 12581346, 12587533, 12588274, 12590035, 12590110, 12788130, 1316156, 1337922, 1376444, 1376445, 1484887, 1588A002, 1588A005, 1588A036, 1588A037, 1588A038, 1588A039, 1588A069, 1588A070, 1588A107, 1618Z8, 1628KY, 1628VN, 1725400117, 180915, 1821360H50, 1821360H51, 1821371L00, 1821373KB0, 1821385Z20, 18213M68KB0, 18213M74L00, 18213T56KB0, 191412, 19209805, 19209807, 19209808, 19353136, 1A0618861A, 1K0998262AC, 1K0998262Q, 1K0998262S, 1K0998262T, 21024460, 2269000QAA, 226909999R, 24402859, 24402860, 24403182, 24403192, 24411440, 24420592, 24420594, 24432940, 30774570, 312042, 330906265D, 33D906262, 33D906262B, 36531PCC014, 36531PWEE011M5, 365325AXG01, 36532PWAG01, 36532PWEG010M5, 3921022620, 3921026700, 392102B070, 392102B270, 392102B350, 392102B380, 392102E500, 392102X050, 392102X060, 392103F120, 392103F140, 392103Y120, 392103Y160, 3M519F472AA, 3M519F472BB, 3M519G444AA, 3M519G444DB, 3S7A9G444AA, 3S7A9G444CA, 3S7AG444DA, 3Z0906265, 46474584, 467502420, 467502480, 467608630, 46760866, 46786048, 46798469, 468057490, 46805753, 46805754, 468057540, 47650245, 4H0906262L, 5001834021, 5269868AB, 55194237, 55198037, 552039220, 55204059, 552040590, 552146210, 55353148, 55353149, 55555625, 55561022, 55561554, 55569903, 55584585, 5862062510, 5H4Z9F472AA, 5L8A9G444H2A, 5L8Z9G444F, 5L8Z9G444H, 5S4A9F472A1A, 5S4A9F472B2A, 5S4Z9F472AA, 5S619G444AA, 5XD906265B, 5XD906265C, 5Z0906262, 617336, 6G919F472AA, 6G9N9G444ZA, 7 589 146, 7 589 147, 7 601 911, 7 603 022, 7589146, 7589147, 7601911, 7603022, 7700114343, 7L0906262B, 7L5906262B, 7L5906262C, 7L5906262D, 7L5906381A, 7M0906265B, 7M5906262D, 7M5906265A, 7M5906265B, 8200033618, 8200034964, 8200036541, 8200044057, 855350, 855435, 855456, 855515, 855516, 8642234, 86778940, 8692769, 88971385, 88971387, 88971389, 88972966, 88973751, 88974123, 89465-02120, 89465-02180, 89465-04290, 89465-04300, 89465-06010, 89465-06120, 89465-0E010, 89465-30190, 89465-33030, 89465-33160, 89465-33350, 89465-39795, 89465-39805, 89465-41020, 89465-45010, 89465-48120, 89465-48200, 89465-52430, 89465-60200, 89465-60220, 89465340NL, 8946535700, 8972873520, 8K0906262, 91021621, 9128785, 9129872, 9129885, 9182000, 9192148, 9197773, 92210450, 93174201, 93180669, 93184575, 93312393, 93385924, 93955204059, 94581873, 9458188, 9470571, 94848614, 94858615, 94859224, 94859766, 9497346, 9497347, 95560613610, 95560613620, 95560613730, 958906262D, 958906262N, 9622997780, 96368765, 96412985, 96415640, 96418970, 96419956, 96424706, 96651040, 96FB9F472BA, 97060617101, 97060617301, 97060617302, 98660622800, 98FB9F472DA, 98FB9G444BC, 98FB9G444CB, 99760617700, A 0015404217, A 0015407217, A 0025401517, A 0035409718, A0015404217, A0015407117, A0015407217, A0015408417, A0025401017, A0025401517, A0025401617, A0025405617, A0025405717, A0035409718, A0035429718, A116E6057F, A18D2104000, A2C53025886, AB3A9G444AA, BJ329G444AA, BP3C18861, BP3C188619U, BP4Y18861A, BP4Y18861C, BP4Y18861C9U, BPD318861, BPD318861A, BPE118861, BPE118861A, BPE818861, BPE818861A, BPE818861A9U, BV619G444BA, DX239G444HA, DY1043, E144004, E144007, F5MF9F472B1B, F5MF9F472B2B, F5MZ9F472B, F5MZ9F472DC, F6C69F472AA, F6CZ9F472AA, GY0418861B9U, GY0418861BCA, GY0618861, GY0618861A, GY0618861A9U, GY0618861ACA, K0046760863, K80518861A, K80518861A9U, K80618861A, K80618861A9U, K83718861A, MD143490, MD192072, MD342688, MD343988, MD359910, MHK100560, MHK101001, MR420979, PAB906262BB, SMR985039, XL3F9F472AA, XL3F9F472CA, XL3F9F472DA, XL3Z9F472BAFC, ZM0118861, ZM0118861A, ZM0118861A9U, ZM0118861ACA, ZZR118861, ZZR218861
Produkttyp: Lambdasonde
Produktart: Lambdasonde
Sensorart: Lambdasonde
Vergleichsnummer: Regelsonde, Lambda Sonde, für Katalysator

Länge [mm]: 1.020
Lambdasonde: Gewinde vorgefettet
Teilehersteller/Anbieter: VEMO
Referenznummer(n) OEM: V20-76-0080
Referenznummer(n) OE: 11 78 7 514 926, 11 78 7 514 927, 11787514926, 11787514927, 7 514 926, 7 514 927, 7514926, 7514927
Produkttyp: Lambdasonde
Sensorart: Lambdasonde
Steckergehäuseform: rund
Vergleichsnummer: Lambda Sonde, für Katalysator

Referenznummer(n) OEM: 1084329, V20-72-5143-1
Referenznummer(n) OE: 13 62 7 513 957, 13 62 7 566 984, 13627513957, 13627566984, 7 513 957, 7 566 984, 7513957, 7566984
Pol-Anzahl: 6
Produkttyp: Luftmassenmesser