E93 Supercharger basic questions

[LakeSurfer]

Hello,
I hope to not piss any of you off with stupid questions but here goes.
I’m looking at a 2013 E93 M3 with less than 44K on the clock with an Active Autowerke supercharger installed. I’m not all that knowledgeable with the technical side of superchargers let alone cars in general.

What are some things I need to look at while conducting a pre purchase inspection on the supercharger and the affecting parts of the engine?

How can I tell what “level” supercharger is installed?

Are superchargers reliable and daily drive able?

If necessary can the supercharger be unbolted and sold or are there be internal parts installed as well?

I appreciate your reply's.

-Mark

[Mvy]

Id recommend ensuring that rod bearings were changed with the SC install. If not, that would be the first thing I did to the car. An oil analysis would be nice to have. The "level" is typically determined by the pulley size, injectors and sw version. The systems are reliable and daily drive able for sure. You can unbolt and go back to stock pretty easily, assuming you have the plenum and injectors.

[LakeSurfer]

Originally Posted by Mvy

Id recommend ensuring that rod bearings were changed with the SC install. If not, that would be the first thing I did to the car. An oil analysis would be nice to have. The "level" is typically determined by the pulley size, injectors and sw version. The systems are reliable and daily drive able for sure. You can unbolt and go back to stock pretty easily, assuming you have the plenum and injectors.

thank you,

thats about what I was thinking. the car is a '13 and i understand that the bearings are different than the 08-10 and the oil analysis doesn't help as is does with the older gen cars.
from what i understand Active Atowerkes installed the kit. the dealer is unhelpful of course so ive reached out to active to see if they did the rod bearings as well but the car has such low miles and is a 2013 im guessing they passed on the bearings at the time of install. we'll see. if not this would be on my list for sure.

are there any failure points, oil leaks or obvious things to look for that could indicate a hard life as the supercharger in concerned?

thanks again

-Mark

[Mvy]

All you can see on "hard use" would come from an oil report. Not much else to check as the biggest issue with superchargers is they put more strain on the main bearing #1. Look for elevated aluminum and tin for that model year. Everything else would be normal PPI type stuff looking for leaks.

[3Pedals_6Speeds]

Originally Posted by LakeSurfer

thank you,

thats about what I was thinking. the car is a '13 and i understand that the bearings are different than the 08-10 and the oil analysis doesn't help as is does with the older gen cars.
-Mark

Oil analysis doesn't help on >2010 cars?