Bujii MAGNETI MARELLI 359000400250(A0041591303) pentru AUDI A3 (8P1) 1.2 TSI

La motoarele cu alimentare pe benzina , bujia , reprezinta elementul sistemului de aprindere , care are rolul de a produce scanteie , intre electrozii acesteia , care sa aprinda amestecul carburant din camera de ardere . O bujie , se compune dintr-un electrod pozitiv , amplasat central , alimentat de bobina de inductie , unul lateral , negativ , legat la corpul bujiei , corpul metalic exterior , care se insurubeaza in chiulasa , izolator ceramic , care izoleaza electrodul central , garnituri de etansare din praf de caolin presat , amplasate in zona de contact dintre corpul metalic al bujiei si izolatorul ceramic si piulita de contact , prin care se alimenteaza bujia . Bujia , indeplineste un rol esential , in functionarea motorului , alegandu-se functie de caracteristicile acestuia . Daca o bujie este prost aleasa , incalzirea izolatorului la temperaturi de peste 900 de grade celsius , poate duce la aprinderi secundare ale amestecului carburant , cauzand motorului pierderi de putere si o functionare cu batai . Bujia este dimensionata sa respecte mai multe cerinte : - valoarea termica , care reflecta capacitatea bujiei de a transmite caldura din camera de ardere , inspre mediul ambiant , ea fiind supusa , in timpul functionarii , unor solicitari termice extreme , datorate diferentelor de temperatura dintre partea care intra in camera de ardere si partea expusa mediului exterior . -rezistenta mare la solicitari electrice , aprox 5000 de volti in timpul functionarii normale ,putand ajunge , pana la 12000 de volti , la pornirea de la rece . -solicitari mecanice , care intervin in cilindri , datorita variatiei presiunii gazelor , dar si a trepidatiilor , care apar in timpul functionarii . Se deosebesc doua tipuri de bujii , calde si reci ., cele calde avand valori termice mai mari . Durata de viata a unui set de bujii este de aproximativ 60.000 de kilometri . La motoarele noi , generarea scanteii la fiecare bujie , este controlata de catre calculatorul de injectie . -

Pentru:

MERCEDES-BENZ SL (R230) 55 AMG (230.474) 2001-2002 476CP (350 KW) 5439cmc,

MERCEDES-BENZ CLK (C209) 200 Kompressor (209.342) 2002-2009 163CP (120 KW) 1796cmc,

MERCEDES-BENZ CLK (C209) 200 CGI (209.343) 2003-2009 170CP (125 KW) 1796cmc,

MERCEDES-BENZ C-CLASS (W203) C 180 Kompressor (203.046) 2002-2007 143CP (105 KW) 1796cmc,

MERCEDES-BENZ C-CLASS (W203) C 200 Kompressor (203.042) 2002-2007 163CP (120 KW) 1796cmc,

MERCEDES-BENZ C-CLASS T-Model (S203) C 180 Kompressor (203.246) 2002-2007 143CP (105 KW) 1796cmc,

MERCEDES-BENZ C-CLASS T-Model (S203) C 200 Kompressor (203.242) 2002-2007 163CP (120 KW) 1796cmc,

MERCEDES-BENZ C-CLASS Coupe (CL203) C 180 Kompressor (203.746) 2002-2008 143CP (105 KW) 1796cmc,

MERCEDES-BENZ C-CLASS Coupe (CL203) C 200 Kompressor (203.742) 2002-2008 163CP (120 KW) 1796cmc,

MERCEDES-BENZ C-CLASS Coupe (CL203) C 230 Kompressor (203.740) 2002-2008 192CP (141 KW) 1796cmc,

MERCEDES-BENZ SL (R230) 55 AMG Kompressor (230.474) 2002-2012 500CP (368 KW) 5439cmc,

MERCEDES-BENZ S-CLASS (W220) S 55 AMG Kompressor (220.074, 220.174) 2002-2005 500CP (368 KW) 5439cmc,

MERCEDES-BENZ S-CLASS Coupe (C215) CL 55 AMG Kompressor (215.374) 2002-2006 500CP (368 KW) 5439cmc,

MERCEDES-BENZ E-CLASS (W211) E 55 AMG Kompressor (211.076) 2002-2008 476CP (350 KW) 5439cmc,

MERCEDES-BENZ E-CLASS (W211) E 200 Kompressor (211.042) 2002-2008 163CP (120 KW) 1796cmc,

MERCEDES-BENZ C-CLASS Coupe (CL203) C 200 CGI Kompressor (203.743) 2003-2008 170CP (125 KW) 1796cmc,

MERCEDES-BENZ E-CLASS T-Model (S211) E 200 T Kompressor (211.242) 2003-2009 163CP (120 KW) 1796cmc,

MERCEDES-BENZ CLK Cabriolet (A209) CLK 200 Kompressor (209.442) 2003-2010 163CP (120 KW) 1796cmc,

MERCEDES-BENZ C-CLASS (W203) C 200 CGI Kompressor (203.043) 2003-2007 170CP (125 KW) 1796cmc,

MERCEDES-BENZ C-CLASS T-Model (S203) C 200 CGI Kompressor (203.243) 2003-2007 170CP (125 KW) 1796cmc,

MERCEDES-BENZ E-CLASS T-Model (S211) E 55 T AMG Kompressor (211.276) 2003-2009 476CP (350 KW) 5439cmc,

MERCEDES-BENZ C-CLASS (W203) C 230 Kompressor (203.040) 2004-2007 192CP (141 KW) 1796cmc,

MERCEDES-BENZ C-CLASS T-Model (S203) C 230 Kompressor (203.240) 2004-2007 192CP (141 KW) 1796cmc,

MERCEDES-BENZ SLK (R171) 200 Kompressor (171.442) 2004-2011 163CP (120 KW) 1795cmc,

MERCEDES-BENZ E-CLASS (W211) E 200 NGT (211.041) 2004-2008 163CP (120 KW) 1796cmc,

MERCEDES-BENZ SLR (R199) 5.4 (199.376) 2004-prezent 626CP (460 KW) 5439cmc,

MERCEDES-BENZ G-CLASS (W463) G 55 AMG (463.270, 463.271) 2004-prezent 476CP (350 KW) 5439cmc,

MERCEDES-BENZ CLS (C219) CLS 55 AMG (219.376) 2005-2010 476CP (350 KW) 5439cmc,

MERCEDES-BENZ C-CLASS Coupe (CL203) C 160 Kompressor (203.730) 2002-2008 122CP (90 KW) 1796cmc,

MERCEDES-BENZ SL (R230) 55 AMG 2006-2012 517CP (380 KW) 5439cmc,

MERCEDES-BENZ E-CLASS (W211) E 200 Kompressor (211.041) 2006-2008 184CP (135 KW) 1796cmc,

MERCEDES-BENZ E-CLASS T-Model (S211) E 200 Kompressor (211.241) 2006-2009 184CP (135 KW) 1796cmc,

MERCEDES-BENZ CLK (C209) 200 Kompressor (209.341) 2006-2009 184CP (135 KW) 1796cmc,

MERCEDES-BENZ CLK Cabriolet (A209) CLK 200 Kompressor (209.441) 2006-2010 184CP (135 KW) 1796cmc,

MERCEDES-BENZ SLR (R199) 5.4 722 Edition 2006-prezent 650CP (478 KW) 5439cmc,

MERCEDES-BENZ C-CLASS Coupe (CL203) C 220 2002-2008 163CP (120 KW) 1796cmc,

MERCEDES-BENZ C-CLASS (W204) C 180 Kompressor (204.046) 2007-2014 156CP (115 KW) 1796cmc,

MERCEDES-BENZ C-CLASS (W204) C 200 Kompressor (204.041) 2007-2014 184CP (135 KW) 1796cmc,

MERCEDES-BENZ C-CLASS T-Model (S204) C 200 Kompressor (204.241) 2007-2014 184CP (135 KW) 1796cmc,

MERCEDES-BENZ CLC-CLASS (CL203) CLC 200 Kompressor (203.741) 2008-2011 184CP (135 KW) 1796cmc,

MERCEDES-BENZ SLK (R171) 200 Kompressor (171.445) 2008-2011 184CP (135 KW) 1796cmc,

MERCEDES-BENZ SLR ROADSTER (R199) 5.4 2007-prezent 626CP (460 KW) 5439cmc,

MERCEDES-BENZ G-CLASS (W463) G 55 AMG (463.270, 463.271) 2008-prezent 507CP (373 KW) 5439cmc,

MERCEDES-BENZ G-CLASS (W463) G 55 AMG (463.270, 463.271) 2006-prezent 500CP (368 KW) 5439cmc,

MERCEDES-BENZ SLR ROADSTER (R199) 5.4 2006-prezent 650CP (478 KW) 5439cmc,