alehrv_

Hi everyone.

I'm looking to buy a W212 Restyle/Facelift , I was wondering what are the most reliable and powerful engines these cars have had?

I'm thinking of OM642, M272 and M276 , no V8s.

I'd like to get a little extra power out of them , by that I mean taking them to stage 1 or 2, if this info is of any help to you.

Thanks in advance to anyone willing to help!

W205C43PFL

M276 is the most reliable in the list.

CaliBenzDriver

.... and you can get a lot more torque & power with the TT version of M276.

m276Enthusiast

m276 by far.

BenzV12

M276 gets another vote by me as well

DFWdude

Here in the US, the M276 is your best bet. But you didn't note what country you live in... The availability of existing engines may be different in IT.

2006 CL500

+1 on the M276!

juanmor40

You may not get much extra power out of any of the NA variants. That leads to the turbo variants, and the V6 TT will beat the V8 TT hands down on reliability, not on the road though.

If I have to pick, M276 NA eyes closed. However, if you want to mess with tuning, M276 TT.

Now, if you have disposable money, and I mean Vegas money you can experiment with the V8 TT (variants built before March 2015 are riskier). It will be fun , UNTIL

JettaRed

iTrader: (1)

I concur with @juanmor40 . If you can find an E400, I think you will be very happy if you plan to tune. The E350 at around 300hp is very nice, but getting more out of it is going to be more trouble than it is worth.

Left Coast Geek

indeed, the stock M276 3.5 NA engine is about as tuned as you'd want, with Direct Injection, variable cam, etc etc. 300HP and ft-lbs from a reliable 3.5L V6 is no laughing matter. Of course, if you /really/ want fast, get a W213 E63S, hah hah. 600 horses, hold onto your hat! If I had a E63, it would be a white wagon, AMG badges deleted, a total sleeper that will blow away most anything on the road when in 'rage' mode, and is a mild mannered daily driver in 'E' mode.

diesel_dan

Good friends have an E400 - probably the most trouble free car they've owned... I'm partial to the ride and power of ours (Airmatic), and hopefully never get in an E63s to alter my perspective...

Left Coast Geek

i know a guy who bought a new E63S, he kept it until the extended warranty was ending, and promptly sold it. said he never had any major problems with it other than the usual new car weirdnesses, but it was WAY too complicated of a car to maintain once it gets up in miles.

Faast

I have a 2014 E63s, bought it 3-1/2 years ago with 38k miles it currently has 51K trouble free miles. Neither me nor the previous owner had any issues with the car. I still have another 1-1/2 year of un-tapped Fidelity platinum warranty LOL