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Sunet metalic - Distributie sau catalizator?

NSamy

By NSamy
in Seria 3

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NSamy

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Masina este un BMW E90 318i cu 72000 km. Motorul porneste bine la rece si merge rotund, insa la decelerare se aude un zgomot metalic de sub masina. Dupa cateva minute cand se incalzeste incepe sa nu mai urce in ture si sa sune ca si cum ar fi infundat. ISTA nu arata nicio eroare.

 

Primul mecanic la care am fost mi-a spus ca este de vina distributia, insa aceasta a fost schimbata acum 15.000 km (18 luni).

 

Al doilea a spus ca este de vina catalizatorul NOX (al doilea de pe evacuare) si ar trebui inlocuit. Piesa este foarte scumpa si se incuieste toata evacuarea dupa primul catalizator.

 

Am atasat valorile date in ISTA la mai multi parametri si un video cu zgomotul metalic. https://www.youtube.com/watch?v=22EyzVX-ruU

 

Ce as putea face in continuare? O sa merg la inca un mecanic saptamana viitoare pentru o a treia parere.

 

Va multumesc mult pentru ajutor!

 

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Edited by NSamy
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