Bought my 3rd w212
got a good price, has a minor issue with the radar, lane assist, blind spot, pre-brake, and distronic are inoperable but i usually disable most of those features, will be taking on the project as rest of the car seemed fine, and it did just make it 2300 miles running like a champ, especially in SD where i had to slow down to 110 sometimes. Also i think having cruise control not function helped keep me alert.
will need to tint the windows asap and its my first biturbo w212 so planning to do some power upgrades too.
Last edited by Boarderjosh10; Oct 2, 2023 at 07:35 PM.




I have distronic plus on my E400 and thought it was mostly worthless because my longest drives were on the incredibly curvy VA/WV I64/Turnpike. It works OK there, but really struggles with the high speeds, curves and angles. I just drove to OBX from central virginia and realized what an incredible system it is. On a "normal" non WV route (or CO since that's the only other place that seems as bad or worse than the WV turnpike), it's a game changer.
Edit: I have mine tuned with a JB4, which I don't think they offer for the 4.7TT. However, renntech, oetuning and a half dozen others can get your 4.7TT to 600 crank HP or more with only an ECU tune if you're interested. OEtuning claims they can get 480 crank with just an ECU on my 3.0TT...

Last one had massage and air. Both were pain in the *** and had to repair both at times so will probably not miss either.
Haven't gotten too far into the problem with the sensors. There is a code for b29/3 interference and it appears to have some dings near the front sensor so probably was a botched repair. Car was 1 owner and always serviced at mb dealer so I plan to have them get me any repair history they have. Shouldn't be mush given the miles.
i was happy with the tune I had from oetune so might go with them. Do people upgrade the turbos or mostly bov and intercooler upgrades with stock turbos? haven't used methanol since I played with rotary's.
Heading to Dominican Republic for some sun so I'll check back on the car next week. Hearing they are going to have a week of rain so might have to hop to somewhere else. Made it back from the road trip 5 hours before take off.
Last edited by Boarderjosh10; Oct 3, 2023 at 12:58 AM.
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When you say unicorn year, like should I be storing this thing in a barn for 30 years? Interior is mint. Exterior a couple minor nics. I got lucky once in my life having an iPod in the box with appreciation. I have the means to save this one and given less than 25k miles wondering if I shouldn't drive it. Saw a 91 hammer with 30k miles go for $100k so wasn't sure on this model.
Or do I molest it by tuning ecu, upgrade the turbos, and go full hog on it? I see there are 100hp gains with an ecu tune alone




When you say unicorn year, like should I be storing this thing in a barn for 30 years? Interior is mint. Exterior a couple minor nics. I got lucky once in my life having an iPod in the box with appreciation. I have the means to save this one and given less than 25k miles wondering if I shouldn't drive it. Saw a 91 hammer with 30k miles go for $100k so wasn't sure on this model.
Or do I molest it by tuning ecu, upgrade the turbos, and go full hog on it? I see there are 100hp gains with an ecu tune alone
A W212 E550 with the 4.7TT is a unicorn for people looking for a W212, but it'll never be a classic. The 5.5TT on the E63 will be the "classic" if any ever exists. It's just that they only offered a 4.7TT in a facelift for one year, so if you're looking for a V8TT in a facelift that isn't an insane AMG, that's the only one you can get.








