[hr369]

Greetings all. I've just had the good fortune of picking up a 2009 335d with a spun rod
for a good price. I pulled the oil pan off and the rod journal looks like it got really hot not
to mention the gouges.

I've been looking on ebay and there are listings for M57 engines and used crankshafts
but i'm confused by the different part numbers europe uses. Shouldn't a european E90 M57
engine use the same crankshaft as my usa model M57D30T2 ?

[floydarogers]

Originally Posted by hr369

Greetings all. I've just had the good fortune of picking up a 2009 335d with a spun rod
for a good price. I pulled the oil pan off and the rod journal looks like it got really hot not
to mention the gouges.

I've been looking on ebay and there are listings for M57 engines and used crankshafts
but i'm confused by the different part numbers europe uses. Shouldn't a european E90 M57
engine use the same crankshaft as my usa model M57D30T2 ?

No, it does not. The USA/CA engine has some slight changes to rod and pistons that I presume made a difference at the crank. There are many differences, particularly the intake manifold and swirl flap actuator, the EGR actuator, other actuators (all have to have positive control feedback), DPF/DOC, etc.

Many of these are detailed in the documents that are stickied at the top in the "blue performance****.pdf", "Advanced Diesel Technology*****.pdf", etc.

[hr369]

ok after looking at the part number on my crankshaft, i do find a match in european versions.
my part # for the usa crank is 7792608 and according to the ebay seller it fits these european models.

2008-BMW-530D-X5-E70-X3-E83 this is the 306D3 version of the M57

For a motor swap i wlll have to check bore and compression ratio's If they're same i should be able to swap over the usa ancillaries and it will work

[floydarogers]

Originally Posted by hr369

ok after looking at the part number on my crankshaft, i do find a match in european versions.
my part # for the usa crank is 7792608 and according to the ebay seller it fits these european models.

2008-BMW-530D-X5-E70-X3-E83 this is the 306D3 version of the M57

For a motor swap i wlll have to check bore and compression ratio's If they're same i should be able to swap over the usa ancillaries and it will work

Good luck!

[hr369]

Doesn't look like many people here build engines. Perhaps just swap engines when one fails. That's understandable with the price of parts here in the usa. Used parts from europe are much cheaper even with shipping.

I tried to buy a brand new piston from bmw usa but they said they had none anywhere in the usa and had to order one from europe! Price for 1 pistonis $624.00

These pistons are unique becuase they have a piston pin offset for quieter running. So... if anyone out there has any of these pistons from a usa 335d, keep them! they're worth $. I paid 200 for a used one from a 286hp german 335D.

Mahle Piston 84L91 casting number thats inside the piston and bmw part #11 25 7 799 883

Connecting rods are the same as usa with a part #11 24 7 798 368

I gleaned this info from a bmw publication. Page 16
https://drive.google.com/open?id=0B0...jlMOGNYUW5ZQjA

The piston pin has a greater offset than in the European version.
The offset of the piston pin means that the piston pin is slightly off
center.This provides acoustic advantages during changes in piston
contact. The acoustic advantages of increasing the offset are
further developed particularly at idle speed.

[BB_cuda]

There is one guy that did work on his engine a major way. He showed a piston in a picture that he replaced. He came around in roughly last six months. I will try to dig up his thread for you. If i remembered his username, this would be much easier.

Its coming back to me a little now. I recall he said the lands on the piston were messed up where a piston ring would not be properly supported. He had reported lots of smoke. We told him to be sure injectors were good before tearing apart his engine. He came back with the damaged piston picture. I don't recall if he went through his shortblock of only addressed the one piston.

You're right, all but this guy hadn't ventured into our crankcases. Well another minor exception. Andrew@FixmyVW.com did go into his crankcase to change a bad oil pump. Sort of a near miss.

[BB_cuda]

Found that thread. The member's name is goldroaster.

http://www.e90post.com/forums/showthread.php?t=1361917

[hr369]

Thanks, good reading, i'm surprised his compression rings were failing. The top ring is really beefy but the 2n'd ring is probably 1/2 as thick. I'm thinking his engine overheated at some point and the rings lost their tension.

I ran across a Russian website that shows a rebuild of a ukranian 2008 M57TU2D30TOP which uses the same offset pistons as my 2009 usa M57.
His engine had 208400 km and it dropped a swirl valve in #6. After reading that i ordered a swirl valve delete. Redesign? lol no thanks, i'm not trusting the "newer design"

Interesting to note, he ordered GOETZE rings using the bmw part number and they sent him 6 sets of M47 rings. I hope GOETZE has sorted that problem out.

He also has some good aftermarket part numbers listed. I wouldn't buy the victor reinz head bolts. I've seen bad examples (loose fitting) of their head bolts on gasoline engines and bmw head bolts aren't that much more.

https://translate.google.com/transla...-text=&act=url
https://translate.google.com/transla...6/&prev=search