Volim bmw kao brend, ali bas sam se iznenadio histerijom koja je nastala povodom N47 motora. Verovatno i najpopularniji motor u Evropi.
Jos sam malo snjufao po forumima, pa nekom kupcu moze biti od koristi ovih par izdvojenih informacija.
Naime, u prepisci vlasnika bmw-a iz Velike Britanije sa zvanicnom podrskom bmwcare.com dobio je sledece specifikacije delova koji moraju biti zamenjeni u slucaju dijagnostifikovanog problema sa lancem>
Izvor>
http://www.bmwcare.com
Servisne mere u slucaju:
'N47, N47S, N47T, slipping noises in the engine, timing chain scraping'
Obuhvaceni motori proizvedeni u periodu:
'01/03/07 - 01/03/11'
Uzrok:
'Sharp edges on the chain wheels or the timing chain does not run evenly over the sliding rails'
Dva metoda resavanj problema u zavisnosti od serije motora>
N47, N47DK0, N47S, production period 01.03.2007 to 05.01.2009:
Renew:
- 11 21 7 803 479 Exchange crankshaft with bearing shells [Crank must be manufactured after 05/01/2009] >> this suggests that all cranks prior to that build have questionable sprockets??
- 11 41 7 797 896 Chain for the oil pump drive.
- 11 31 8 506 652 Bottom timing chain.
- 13 52 7 797 906 Sprocket for the high pressure pump drive.
- 11 27 7 800 523 Gearwheel (idler gear for the balancing shafts).
- 11 31 8 510 014 Top timing chain.
- 11 31 7 797 899 Sliding rail/guide rail for the top timing chain.
- 13 52 7 797 904 Sliding rail/guide rail for the bottom timing chain.
N47, N47DK0, N47S, N47T, production period 05.01.2009 - 01.03.2011:
Renew:
- 11 31 8 506 652 bottom timing chain.
- 13 52 7 797 906 Sprocket for the high pressure pump drive.
- 11 31 8 510 014 Top timing chain.
- 11 31 7 797 899 Sliding rail/guide rail for the top timing chain.
- 13 52 7 797 904 Sliding rail/guide rail for the bottom timing chain.
Sto se tice statistike, to sigurno niko nikada nece utvrditi, ali su na nekim bmw forumima sami napravili ankete, jedna od njih>
http://www.babybmw.net/viewtopic.php?f=11&t=35965
Naravno, ovakve ankete su upitne, ali kao neke krajnje cifre se pominju
118ds (about 25%) 4 of 21
120ds (about 15%) 3 of 21
123 ds (about 15%) 2 of 13 ....
Malo dublja tehnicka rasprava za one koji to vole>
http://www.bimmerforums.co.uk/forum/f74 ... s-t119594/