BMW matching numbers

harkes · 09-05-2019, 12:06 AM

Hi

How do I check if a car is matching numbers - original engine in the car? Is the engine number somewhere to be found in the cars documentation? (at work and too impatient to check when I get home)

Feddersen · 09-06-2019, 02:03 AM

I don't think it's possible. I had my engine replaced and looking into the Carly Car Check nothing comes up as a replaced engine. In my case the onboard computer regards the engine replacement as an oil change.

harkes · 09-08-2019, 11:32 PM

Quote:

Originally Posted by Feddersen

I don't think it's possible. I had my engine replaced and looking into the Carly Car Check nothing comes up as a replaced engine. In my case the onboard computer regards the engine replacement as an oil change.

Of course. The computer cannot read the different number on the engine block

DreamerJoe · 09-11-2019, 12:53 AM

don't cars usually have a serial # stamped on the engine block? not sure of its exact location on the n55, but you definitley need to get under the hood.

harkes · 09-11-2019, 01:29 AM

Quote:

Originally Posted by DreamerJoe

don't cars usually have a serial # stamped on the engine block? not sure of its exact location on the n55, but you definitley need to get under the hood.

Engine serial # is on the engine of course. But how to know if it is the original engine in the car? That is my question.

drivef30 · 09-11-2019, 03:02 AM

There is not software to detect that change. You changed hardware/mechanical items not anything electrical per say (for example new idrive will carry a new serial number... but say if a BMW shop replaces a valve cover, youll never know unless you check the valve cover itself). Similarly during an engine swap most/if not all electrical parts are reused and only the mechanical engine long/short block is replaced.

In short youd have to find the VIN imprinted on the block to verify.

harkes · 09-12-2019, 09:47 PM

Quote:

Originally Posted by drivef30

There is not software to detect that change. You changed hardware/mechanical items not anything electrical per say (for example new idrive will carry a new serial number... but say if a BMW shop replaces a valve cover, youll never know unless you check the valve cover itself). Similarly during an engine swap most/if not all electrical parts are reused and only the mechanical engine long/short block is replaced.

In short youd have to find the VIN imprinted on the block to verify.

F32Fleet · 09-14-2019, 07:59 AM

Quote:

Originally Posted by harkes

Quote:

Originally Posted by DreamerJoe

don't cars usually have a serial # stamped on the engine block? not sure of its exact location on the n55, but you definitley need to get under the hood.

Engine serial # is on the engine of course. But how to know if it is the original engine in the car? That is my question.

BMW AG certainly has an internal record for a variety of business reasons (ex, recalls). They may or may not share that information with you.

09-05-2019, 12:06 AM	#1
harkes Colonel 1078 Rep 2,357 Posts Drives: M135i, E39 M5, NSX and AE86 Join Date: Apr 2014 Location: Xiamen, China iTrader: (0)	BMW matching numbers - how to check? Hi How do I check if a car is matching numbers - original engine in the car? Is the engine number somewhere to be found in the cars documentation? (at work and too impatient to check when I get home) __________________ M135i 8AT PWG, MHD, Pure Stage2, WMI via Torqbyte CM5-LT, Custom tuned by PureBoost (A Dane in China)
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09-06-2019, 02:03 AM	#2
Feddersen Lieutenant 451 Rep 469 Posts Drives: X1 xDrive25i Join Date: Jan 2015 Location: Denmark iTrader: (0)	I don't think it's possible. I had my engine replaced and looking into the Carly Car Check nothing comes up as a replaced engine. In my case the onboard computer regards the engine replacement as an oil change. __________________ DD: F48 X1 xDrive25i '20 - https://f48.bimmerpost.com/forums/sh....php?t=1703083 For fun: F22 M240i '19 - https://www.2addicts.com/forums/show....php?t=1644646 Previous BMW: Fully loaded F30, 335i https://f30.bimmerpost.com/forums/sh....php?t=1681247
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09-11-2019, 12:53 AM	#4
DreamerJoe Captain 242 Rep 764 Posts Drives: 2017 340i M.G. w red interior Join Date: Dec 2018 Location: SoCal iTrader: (0)	don't cars usually have a serial # stamped on the engine block? not sure of its exact location on the n55, but you definitley need to get under the hood. __________________ MG F30 M-Sport 6mt FBO w/ MHD stage 2 plus (PWG), ST XA Coilovers, 19" VMR V804.
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09-11-2019, 03:02 AM	#6
drivef30 Lieutenant 111 Rep 463 Posts Drives: 17' 340i xDrive M-Sport Join Date: Aug 2017 Location: Michigan, USA iTrader: (2)	There is not software to detect that change. You changed hardware/mechanical items not anything electrical per say (for example new idrive will carry a new serial number... but say if a BMW shop replaces a valve cover, youll never know unless you check the valve cover itself). Similarly during an engine swap most/if not all electrical parts are reused and only the mechanical engine long/short block is replaced. In short youd have to find the VIN imprinted on the block to verify.
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