2016 W212 e400 bi turbo
I’ve never seen one on the road and I don’t see much here on this model and am wondering if I should be concerned. Any input is welcomed be it good or bad, thanks.
some concerns,
How often should the plugs be changed being a bi turbo engine?
Do you need to index spark plugs on the US engines or just torque them as I see mixed responses.
How long do the turbos typically last?
Is removing the intercooler a pain to get at the serpentine belt?
Can you change the motor mounts with engine in the car or is it true you need to remove the engine?




edit turbo motors tend not to last as long as non turbo motors. at least, thats been my experience.
Last edited by Left Coast Geek; Jan 5, 2022 at 05:37 AM.
Good mpg too on interstate; 28-30 mpg doing 75-80 flat.
Plus car comes with way more bells and whistles then a e350.
Heated and ventilated seats and pretty much all those safety features and driver option thingys.
Does have staggered size tires which can be a PIA as no rotation and the rears for some reason tend to wear first no matter how hard you drive it into the corners.
Go test drive it.
See if it has apple car play stock as I think 2016 was first year for that.
Check what map version it has too since MB is proud of their updates.




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Good mpg too on interstate; 28-30 mpg doing 75-80 flat.
Plus car comes with way more bells and whistles then a e350.
Heated and ventilated seats and pretty much all those safety features and driver option thingys.
Does have staggered size tires which can be a PIA as no rotation and the rears for some reason tend to wear first no matter how hard you drive it into the corners.
Go test drive it.
See if it has apple car play stock as I think 2016 was first year for that.
Check what map version it has too since MB is proud of their updates.
I really like mine. I saw an identical one yesterday in VA for the first time in 3 years of ownership. Both of us were looking at each other's cars like we'd just seen a ghost.
The Best of Mercedes & AMG
http://mbenzcoder.com/
Last edited by trshot; Jan 5, 2022 at 09:19 AM.
I like the ghost reference! How many miles on yours and any unexpected big repairs?




- Front wheel bearing roached when I received the car, ****ty move on the Pittsburgh dealer (who I had it shipped from sight unseen due to recovering from surgery), but it was repaired under CPO
- Blower motor for the HVAC has a bit of a noise and I'll replace it at some point. Sort of squeaky, but it has to be low speed and no music to hear
- When it's cool the 7-speed has some harshish downshifts from 3-2 and 4-3 when the transmission is not warmed up - I tried replicating it with a dealer SA one day and could not. It doesn't happen when the ambient temp is hot or cold, only a bit chilly (like 50s). Very odd, but I had similar issues with my 2007 bluetec using an earlier version of the same transmission
- Front wheel bearing roached when I received the car, ****ty move on the Pittsburgh dealer (who I had it shipped from sight unseen due to recovering from surgery), but it was repaired under CPO
- Blower motor for the HVAC has a bit of a noise and I'll replace it at some point. Sort of squeaky, but it has to be low speed and no music to hear
- When it's cool the 7-speed has some harshish downshifts from 3-2 and 4-3 when the transmission is not warmed up - I tried replicating it with a dealer SA one day and could not. It doesn't happen when the ambient temp is hot or cold, only a bit chilly (like 50s). Very odd, but I had similar issues with my 2007 bluetec using an earlier version of the same transmission




http://mbenzcoder.com/








MB is working on a flashware/firmware/software update for Command (told by my dealer it was due to compatibility issues with some iPhones - of which I actually experienced) and the sellers of these devices are warning that if you have the dealer update to the "as yet released" software, they MAY disable or erase the lines of code that have been inserted by your dongle, thereby rendering it useless. I have no intention of having them perform this update but I don't think it's really an issue. Even if there is a newer version to update to, they are VERY reluctant to do so... I had to do everything but blackmail my SA to get the tech to update to the latest in order for my new dongle to work. Eventually he relented and when I got home I performed the update with my dongle and bingo, I have CarPlay on my 2016 S212. The bugger is that it works for crap with my iPhone 12, which is what the upcoming update is supposed to fix. Anyway, I think I need to make a new thread.
To the OP - I just sold my GLC43 to buy my Wagon and although the ECU and TCU software is different between the E400 and the GLC43 - I absolutely freaking LOVED that drivetrain. I too had a JB4 on mine (which will be for sale here soon) and man was that thing a little animal. I only had 46k miles on mine but there were flawless trouble fee miles and that engine is really something else. My current #s212 with that drivetrain and software would literally be 100% perfect. I wouldn't be afraid of those miles provided there is a solid service history on the car. If it's dodgy, or service wasn't done at the dealer, I'd be wary. Pick below is when I was putting the GLC back to stock to sell it. The intakes don't really add much in the way of measurable performance gains but they did unleash all the fun boosty noises

I am a "recovering gearhead" who drove hot rodded cars for decades. I drag raced, autocrossed, ran road rallyes, entered custom car shows. . . lots of car stuff. The E400 is one of the best automotive choices I've ever made. It is big enough for 4 or 5 adults to ride in comfort. It is well equipped from the factory and has many of the sought after options. It also has a GREAT powertrain. I've driven the AMG E63, so I know what that car can do. But the AMG is a lot like driving one of my old hot rods. It is loud, stiff, aggressive, and impossible to hide in traffic. The E400 is not as fast, but it is really quick for an "invisible" car. Nobody sees it coming. It just blends into traffic. The engine is a joy to drive. I went from a 290 HP Lexus V8 (LS430) to the 329 HP E400. Absolutely no comparison. The "little" V6 blows the doors off the Lexus. I could sum the performance comparison up by saying "Horsepower sells cars. Torque wins races."
I did have one nagging problem, but the problem was one that could have affected any W212 E-Class sedan. I had a "creak" noise in the front suspension, only on colder days. . . for the first 5 1/2 years I owned the car! Two dealers tried and failed to find the noise. They replaces thousands of dollars worth of parts. Finally dealer number 2 identified the noise. It was a bushing on the front anti-sway bar that was probably defective at delivery. Change the anti-sway bar, noise gone. I am back to being a happy camper.
Gonzo is now 61/2 years old, and has about 48K miles on the clock. I see no reason to replace him. It is just too much fun to drive. I also claim that they incorrectly named/labeled the driving mode switch. They call the modes "Comfort" and "Sport." I think the "S" mode should be named "Stupid" for that big, stupid grin it pastes onto my face when I push that button and lean on the throttle.
I agree with the others. If the service history of the car looks good, and if Carfax is clear, buy it. You may eventually replace some wear items, but the platform is tried and true, and the drive train is just too much fun to pass up.












of course, now I'm thinking of upgrading our 'travel / tow" vehicle, which currently is a 2002 F250 Ford F250 XLT 4x4 Powerstroke 7.3 diesel long bed, and replacing it with a late model Ford Expedition big SUV that can easily tow our trailer, has half the turning circle, and is quieter/smoother, and gets better gas mileage..





