E-Class (W212) 2010 - 2016: E 350, E 550

w212 Rebuilding my own transfer case!!!BEWARE ITS A LONG READ

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Old 06-23-2016, 03:23 PM
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2010 w212 E350 4matic
w212 Rebuilding my own transfer case!!!BEWARE ITS A LONG READ

i will start off introducing my self. i am a life time benz owner and auto technician/hod rod gear head(love it so much i went to automotive college lol) but it got boring so i left the automotive industry 4yrs ago to try something new and wanted to challenge myself so now i build spacecrafts for NASA.
after reading through the forums over the last few days its nice to see that there are people here that are always willing to help each other and this seems like a friendly/not many haters community!!
now that's out of the way........

a couple weeks ago i finally bought my wife a w212 that fit her needs/wants(except its not white or black) after 3yrs of waiting for the right one to pop up! during the 3yrs she drove my lsx denali like a boss while i drove the 77 Lincoln Continental Mark V(with no ac) that my grandfather bought new n sold to me 9yrs ago.

i have a family member(indy) that was at the auction and he had 30seconds to describe the car and place a bid over the phone for me..i told him no more than $20k..well 40sec phone call bought me a $17k car i didnt see or drive!... Tenorite Gray Metallic 2010 E350 4matic 70Kmileage black interior /black ashwood, nice clean gray seats(look almost white)!!!!
i was super happy but i knew it would need something expensive since it was such a beautiful clean unit with brand new wheels/tires and brakes all the way around..
i have never wanted a 4matic because of the horrible transfer case and transmission issues(shame on u mb).....but i have only replaced 2 w221 S550 4matic transfer case's out of mmmmh say the 200+ 4matics i have worked/serviced. so i was hoping for the best but expecting the worst!

when we 1st went to see the car it was perfect!!!! but to me since i consider myself an advanced automotive tech i only care about the paint n body +interior being perfect because everything is nothing to me but time and whole sale parts prices (unless some1 calls me when they find the good stuff that "fell off the back of a truck" it pays to have great friends lol )
the test drive was quick in short since i was pleased and more importantly the wifey loved it! it was on a rough road and she was driving. so we went back to the shop to get the papers n temp tags n off we went!

15min down the highway the wife calls n says sounds like the rotors have rust because she hears a swish swish swish sound....i said yeh yeh yeh the car has been sitting waitn to be sold n the rotors n pads are brand new so i said dont worry it will be fine n should rub out by the time we get home.

so we made it home everyone is happy (but im short $17k cash)before bed time the wife asked me to drive the car since i haven't yet (but really the tank was on E n i think she just wanted me to fiil her up) lol...my 8yr old daughter wanted to ride along since she had not been in the car yet. right before we walked out the door the wife said "listen to see if you hear that noise" ... i pulled out onto the road n right away i said "yup to good to be true" i asked my daughter what she thought it was (i was 90% certain i already knew) she said sounds like when you had a bad wheel bearing in your truck (550 awdhp N/A LSX denali) so i swung the steering wheel side to side to show her it isnt that!

next day put the car on the lift turned esp off n put her in gear raised her up n went around with the stethoscope n was happy to hear nothing in the front diff but sure enough the front output shaft bearing in the transfer case was noticeable, common growl sound...the car is so0o0o0o0o0o freaking clean inside and out and even underneath i feel its worth keeping and to just drop the xcase to replace the bearings! oh yeh when i went to the shop and i brought my scanner cuz my indy told he could not diagnose a bmw that is in immobilized mode, so i did the diag n found the steering column lock module was burnt up and full of corrosion which caused the trace in board to burn n break so he said he is giving me $1k back for the bad xcase in the car i bought from him plus he will pay title/taxes/registration fees so FINAL SALE PRICE FOR IS $13,480

i used timken bearings for the w221 xcase units and wanted to know if there is anyone else here that does their own engine/trans/xcase/diff rebuilds like me (the real deal stuff not r&r)and if you have any suggestions on better parts and part sources.

i will get pics of the car posted up so you all can tell me if its worth my time or to dump it n find another that prob wont be nearly as clean and have the ashwood with black interior n white seats that the wife loves. but also keep in mind that i work 130hrs lower average every 2wks n im already tired enough when im not making $ working + im always working on my big pig big power gm truck.......

im reaching out for motivation/inspiration....all comments/thoughts and opinions are welcome!

thanks you for your time!
tony
Old 06-26-2016, 10:40 PM
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E550
I'd love to see the rebuild. I have a 2010 E550 4matic. no problems yet but I'm curious how much work it is.

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