Considering 2012 E63 Bi-Turbo - Issues?




Long time MB fanatic here, currently have a 2005 E55 but really starting to get the itch for the bi-turbo 5.5L. Seems like an incredible machine.
Staying on a budget is important so I am limited to the earlier years. I love the 2014 face-lifted model but I think that my budget will keep me in the 2012-2013 pre-face lift range.
I was wondering, what are some common issues with the 2012 Bi-Turbo W212? Its the first production year of this engine in this chassis so I am wondering if i may be better off waiting another year or two and opting for the latter years? With my E55 for example, 05-06 had a lot of the 03-04 quirks worked out and had some additional equipment added in so i wonder if the same applies to the W212 and the M157 engine combo. Is the 2012 a good buy?
Thanks in advance!
V
Long time MB fanatic here, currently have a 2005 E55 but really starting to get the itch for the bi-turbo 5.5L. Seems like an incredible machine.
Staying on a budget is important so I am limited to the earlier years. I love the 2014 face-lifted model but I think that my budget will keep me in the 2012-2013 pre-face lift range.
I was wondering, what are some common issues with the 2012 Bi-Turbo W212? Its the first production year of this engine in this chassis so I am wondering if i may be better off waiting another year or two and opting for the latter years? With my E55 for example, 05-06 had a lot of the 03-04 quirks worked out and had some additional equipment added in so i wonder if the same applies to the W212 and the M157 engine combo. Is the 2012 a good buy?
Thanks in advance!
V
I'm about 1 month into ownership and I have noticed some quirks and I've read a lot of them can be handled by the dealership.
2012-2013
"V shape" in headlight - Dealer can fix (headlight leaves a v-shape in condensation behind the plastic)
Transmission "jerkyness"- TCU update (after a cold start transmission engagements seem jerky)
Spark Plugs - Dealer can fix/You can replace (several tuned cars and some non-tuned cars report misfires under load causing rough idle and power loss. This problem is hit or miss, most people just replace plugs and the problem goes away. Other people report it continues to happen after several thousands of miles)
2013 has "upgraded" cooling I say that loosely because it was just revised. Helps out with back to back runs (1/4 and 1/2 mile). Weistec and AMS have upgraded cooling systems that will be better overall, if you have a 2012, why not (I'm going to).
Some other people can chime in here, but these are the ones I've focused on with my 2012. I was in the same boat and found a 2012 P30 CPO with 24k miles on it from a good friend of mine. I got it for an amazing deal and had money for mods a week later.




2012-2013
"V shape" in headlight - Dealer can fix (headlight leaves a v-shape in condensation behind the plastic)
Transmission "jerkyness"- TCU update (after a cold start transmission engagements seem jerky)
Spark Plugs - Dealer can fix/You can replace (several tuned cars and some non-tuned cars report misfires under load causing rough idle and power loss. This problem is hit or miss, most people just replace plugs and the problem goes away. Other people report it continues to happen after several thousands of miles)
2013 has "upgraded" cooling I say that loosely because it was just revised. Helps out with back to back runs (1/4 and 1/2 mile). Weistec and AMS have upgraded cooling systems that will be better overall, if you have a 2012, why not (I'm going to).
Some other people can chime in here, but these are the ones I've focused on with my 2012. I was in the same boat and found a 2012 P30 CPO with 24k miles on it from a good friend of mine. I got it for an amazing deal and had money for mods a week later.
If you can elaborate on a few:
1. Headlights - no concern to me
2. Trans jerkiness - TCU update resolves this? If so, sounds like this is a not a concern, just have the dealer flash the update.
3. Spark plugs - may be a biggie.
What actually happens? They foul? Any resolution if this persists with new plugs? Do you just install new MB plugs or do you go aftermarket? Just curious as to what the real issue behind this is.
4. Another biggie. What was upgraded in 2013? Complete system redesign? And when you say it helps with back to back runs, sounds like the 2012 system was lacking if it couldn't cool quickly enough. E55's had a bug like this too but its was the auxiliary heat exchanger pump that cost $100 and is a breeze to replace. System redesign a year later worries me... Sounds like it was lacking big time. And to confirm, 2013 already has the new design?
If you can elaborate on a few:
1. Headlights - no concern to me
2. Trans jerkiness - TCU update resolves this? If so, sounds like this is a not a concern, just have the dealer flash the update.
3. Spark plugs - may be a biggie.
What actually happens? They foul? Any resolution if this persists with new plugs? Do you just install new MB plugs or do you go aftermarket? Just curious as to what the real issue behind this is.
4. Another biggie. What was upgraded in 2013? Complete system redesign? And when you say it helps with back to back runs, sounds like the 2012 system was lacking if it couldn't cool quickly enough. E55's had a bug like this too but its was the auxiliary heat exchanger pump that cost $100 and is a breeze to replace. System redesign a year later worries me... Sounds like it was lacking big time. And to confirm, 2013 already has the new design?
4. There is very little information I've been able to find, but its nothing like the E55 where that auxillary cooler was more like a bandaid to your IAT's ( i had a stage 3 E55.). The E55's intercooler was a joke to start with. Personally, I've watched my temps and I have yet to hit any type of limp mode and I've run my car hard, canyons and back to back 140 blasts in 90+ degree heat.
for the cooling the update was divorcing the IC system from the coolant system so it runs on its own separate circuit vs co-mingling engine coolant and IC coolant.. basically same as what lot of guys did with the e55's, spliting engine water from S/C water https://mbworld.org/forums/w218/4530...m-updated.html
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So overall, it seems like they are not too problematic. Plugs are a matter of getting a new set, trans is a dealer reprogram and the headlight issue is no issue at all in my opinion. Sure, it would drive me nuts and id replace the lenses but its nothing that would turn me away.
The only thing thats up in the air is this cooling... anyone have any more insight on this system update? Does the 2013 have a totally different system or is it just split cooling?
I am wary of this one... I dealt with 2003-2004 32V Mustangs (Mach 1 and Cobra) and the 2003 had too small of coolant ports in the heads meanwhile 2004 had that revised. This was a MAJOR and expensive repair (+$6,000). The 1 year difference was crucial with these models so I am wondering if this is the same.
Thanks all!
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As far as mods go, this car and platform are still too new and expensive for people to play the guinea pig for tuning companies to explore with. Right now, if you're coming from a heavily modded E55, you may be disappointed with the power of a stock bi-turbo E63 (especially the RWD models). I remember I drove a 2012 CLS63 and it just felt so weak compared to my tune only E55.




As far as mods go, this car and platform are still too new and expensive for people to play the guinea pig for tuning companies to explore with. Right now, if you're coming from a heavily modded E55, you may be disappointed with the power of a stock bi-turbo E63 (especially the RWD models). I remember I drove a 2012 CLS63 and it just felt so weak compared to my tune only E55.
So overall, it seems like they are not too problematic. Plugs are a matter of getting a new set, trans is a dealer reprogram and the headlight issue is no issue at all in my opinion. Sure, it would drive me nuts and id replace the lenses but its nothing that would turn me away.
The only thing thats up in the air is this cooling... anyone have any more insight on this system update? Does the 2013 have a totally different system or is it just split cooling?
I am wary of this one... I dealt with 2003-2004 32V Mustangs (Mach 1 and Cobra) and the 2003 had too small of coolant ports in the heads meanwhile 2004 had that revised. This was a MAJOR and expensive repair (+$6,000). The 1 year difference was crucial with these models so I am wondering if this is the same.
Thanks all!
2012 has one system for IC and radiator
2013 has one system for IC one system for radiator.
Weistec and AMS i believe sell kits to convert your 2012 to a 2013 type of system.








