Review of OE Tuning's Tune On NA E550
Oh and Kudo's to OE Tuning and thanks to Jeremy making this process easy and thanks for your help over the phone. You really can't beat this tune for the price backed by an excellent support crew.
how does this tune overcome the adaptive learning, or doesn't it.



I have a w212 2010 E350 RWD and i'm a bit hesitant on spending 400-500+ for the tune up and flashloader (as much gains you will have with a V6 N/A engine)
Have there been occurrences of engine failures due to this modification? I know OE Tuning as a high end tuning company but i doubt if anything were to happen they would take any responsibility for it.. which is completely understandable.
I have a w212 2010 E350 RWD and i'm a bit hesitant on spending 400-500+ for the tune up and flashloader (as much gains you will have with a V6 N/A engine)
Have there been occurrences of engine failures due to this modification? I know OE Tuning as a high end tuning company but i doubt if anything were to happen they would take any responsibility for it.. which is completely understandable.
We can start a list here:
1. 5Hundred
2. im.a.n3rd
3.
4.
5.
6.
7.
8.
9.
10.
Last edited by SALES@OETUNING; Aug 27, 2014 at 01:06 PM.
The Best of Mercedes & AMG
Also what do you mean by 4 map pack?
Finally if we go back to stock, is it detectable at the dealership that a ECU flash took place?
I may be interested depending on the details.
Thanks!
We can start a list here:
1. 5Hundred
2.
3.
4.
5.
6.
7.
8.
9.
10.
Does it matter if you have an e350 or e550? I have a 2011 e550 4matic - with the NA motor?
Take care,
George
Does it matter if you have an e350 or e550? I have a 2011 e550 4matic - with the NA motor?
Take care,
George
Does it matter if you have an e350 or e550? I have a 2011 e550 4matic - with the NA motor?
Take care,
George
OET - will you share the information you sent George on the forum, or are there specifics involved that you prefer to keep confidential?
Dan
Just trying to figure out the best option for me.
Other than that I'm game.....
Take care,
George
It's safe to say that all manufacturers want their engines to produce the max amount of Hp/Tq while using the least amount of fuel, meeting emissions standards, all while keeping reliability and longevity of the entire drive line high. It is therefore reasonable to assume that if MB could have eeked out an additional 20 or 30 wheel Hp/Tq (which works out to be a bit more at the crank) while not sacrificing the goals above they would have done so. One would be reasonable to assume, then, that there's a trade off somewhere.
On a N/A engine there's only a handful of ways to increase power; add displacement, add compression, alter valve timing and lift (to a point), increase breathing, add timing advance (to a point), and add fuel (to a point). Since no one is cracking open the engine the only thing left to fiddle with is timing and fuel, and possibly altering the cam timing.
My hesitation is 3 fold:
1) In the case of a ECU tune HP and TQ are increased by increasing (advancing) ignition timing and, I presume, by adding fuel. How well does the OE tune manage the ignition timing so that the engine is not constantly bumping against the knock sensors (which retards the timing), and how does it handle lower octane gas?
2) Did MB design the torque management curve to protect the transmission, drive shaft(s), differential(s), and drive axles, or did they design the TM curve only for delivering a smooth driving experience?
3) Finally, the emissions question. Any compromises there?
Dan
I'll put this out in the open here too bc it seems to mirror ss396's concerns and questions, AND leave it to the OE tuning guys to comment:
From what I understand OE Tuning does substantially more to the car than the sprint booster does.
All the sprint booster does is literally fool the car into thinking you have pressed the accelerator further than you actually have. You can achieve the same effect by kicking through the first 1/2" of pedal travel yourself.
Now as far as I know, the OE tune completely changes the driving dynamics of the car.
Besides a 5-10% gain in peak hp / torque which really only matters at the extremes and for dyno / e-racers who are obsessed with stats and theoretical track times etc.
The biggest difference is the modification of the torque management in the software. Sure the NA 550 makes 392hp and 400 something ft / lbs but in factory tune Mercedes decides when you can have it.
This is for two reasons - (maybe three).
First driving characteristics / refinement.
Mercedes doesn't want the car to launch violently or bang gears or get stupid sideways (even though I have a 4matic so I dunno if 4 wheel powerslides are theoretically possible)
So they dial out the torque at low rpms and in lower gears.
This allows your wife / grandmother etc to drive the car in a perfectly smooth refined manner regardless of the power and potential that is there. It also contributes to that feeling that at least I have of that you have to drive the car like you are mad at it to get the the performance you expect. Compared to a e60 bmw 550 which I had for a while the MB is tuned so conservatively that it's not even funny.
Second reason for this:
FUEL ECONOMY
Not that anyone buys an N/A e550 expecting stellar gas mileage - but making the car lethargic around town and hunt for 7th gear all the time allows it to get to the 17/18 mpg average rating. If the car came out of the hole like a raped ape and held gears etc you would prob avg something more around 12/15 mpg. Now honestly I don't care. If I was worried about my carbon footprint and fuel consumption I would have never purchased a mid size car with a 5.5l v8 in it.
But you know who does care? The government for one both in meeting CAFE standards and in dodging gas guzzler taxes. Apparently the whole v8 package wasn't that appealing to consumers to begin with - less than a 5% buy rate in the w212. So mb dropped it for 2015 entirely.
So so far we have two factors that encourage me to get the tune. - changing the cars characteristics from luxury car that can hold it's own on the autobahn to a much more performance oriented car at real world useable speeds.
Now we come to our third factor that is a maybe.
And that is to protect the drivetrain / transmission from all the violent launches and harsh shifts etc that I described before... It's not that the tune will hurt the car, but rather that the tune will enable the driver to abuse and stress the rest of the drivetrain in ways that were verboten in the MB factory tune.
I'm still on the fence about adding the tune to mine. I've got a few things I would like to do first but I would certainly consider it. Especially if I was inclined to order a sprint booster.
Take care,
George
It's safe to say that all manufacturers want their engines to produce the max amount of Hp/Tq while using the least amount of fuel, meeting emissions standards, all while keeping reliability and longevity of the entire drive line high. It is therefore reasonable to assume that if MB could have eeked out an additional 20 or 30 wheel Hp/Tq (which works out to be a bit more at the crank) while not sacrificing the goals above they would have done so. One would be reasonable to assume, then, that there's a trade off somewhere.
On a N/A engine there's only a handful of ways to increase power; add displacement, add compression, alter valve timing and lift (to a point), increase breathing, add timing advance (to a point), and add fuel (to a point). Since no one is cracking open the engine the only thing left to fiddle with is timing and fuel, and possibly altering the cam timing.
My hesitation is 3 fold:
1) In the case of a ECU tune HP and TQ are increased by increasing (advancing) ignition timing and, I presume, by adding fuel. How well does the OE tune manage the ignition timing so that the engine is not constantly bumping against the knock sensors (which retards the timing), and how does it handle lower octane gas?
2) Did MB design the torque management curve to protect the transmission, drive shaft(s), differential(s), and drive axles, or did they design the TM curve only for delivering a smooth driving experience?
3) Finally, the emissions question. Any compromises there?
Dan
1) It doesn't handle low octane gas well at all. It shifts the range so that the car is tuned around at LEAST 91 octane - although on the east coast 93 is the standard. Sure the knock sensors will dumb down the party if they are going crazy, and maybe even put the car into limp mode. BUT.... You DON'T put regular or plus in a car with a tune.
2) That's the million dollar question - see my post above.
3) I don't think so - at least not for anyone that doesn't have a sniffer test. First emissions these days are all OBD controlled / measured. Second the tests are usually at idle or at a fixed rpm / speed. None of the emissions equipment is modified / removed / disabled in this tune (I believe), so that should be fine. - not like putting rear 02 sims in an LS powered GM car or bmw , and or writing them out of the code using HP tuners. Different ball game.
Take care,
George
E350 4matic
Pedal box installed
What would the price be with the android loader instead?
Last edited by 2nice4me; Aug 28, 2014 at 02:01 AM.
It's safe to say that all manufacturers want their engines to produce the max amount of Hp/Tq while using the least amount of fuel, meeting emissions standards, all while keeping reliability and longevity of the entire drive line high. It is therefore reasonable to assume that if MB could have eeked out an additional 20 or 30 wheel Hp/Tq (which works out to be a bit more at the crank) while not sacrificing the goals above they would have done so. One would be reasonable to assume, then, that there's a trade off somewhere.
On a N/A engine there's only a handful of ways to increase power; add displacement, add compression, alter valve timing and lift (to a point), increase breathing, add timing advance (to a point), and add fuel (to a point). Since no one is cracking open the engine the only thing left to fiddle with is timing and fuel, and possibly altering the cam timing.
My hesitation is 3 fold:
1) In the case of a ECU tune HP and TQ are increased by increasing (advancing) ignition timing and, I presume, by adding fuel. How well does the OE tune manage the ignition timing so that the engine is not constantly bumping against the knock sensors (which retards the timing), and how does it handle lower octane gas?
2) Did MB design the torque management curve to protect the transmission, drive shaft(s), differential(s), and drive axles, or did they design the TM curve only for delivering a smooth driving experience?
3) Finally, the emissions question. Any compromises there?
Dan
2. There are many reasons why manufacturers have torque limits in place for Gasoline combustion engines. Safe guards to protect components, limit air flow, detect if the vehicle has rolled over or in an accident are just a few.
3. Part throttle fuel is not adjusted and all emissions functions of a stock vehicle are maintained.
Updated list:
1. 5Hundred
2. im.a.n3rd
3. albertb
4. 2nice4me
5.
6.
7.
8.
9.
10.
2. There are many reasons why manufacturers have torque limits in place for Gasoline combustion engines. Safe guards to protect components, limit air flow, detect if the vehicle has rolled over or in an accident are just a few.
3. Part throttle fuel is not adjusted and all emissions functions of a stock vehicle are maintained.
Second the "torque management" removal / modification scares me a bit with the e550 bc as you said it's been put in partly to safeguard components. I guess launching one of these cars hard on a regular basis with the torque management removed probably still wont be that good and idea right? With an e350 I wouldn't sweat it bc you would have to bolt on a supercharger to get to e550 power and they share a transmission. Do you know if the E63's run the SAME trans, or is it beefed up when it goes into an //AMG car?
Lastly - I expected as much that you would only have to add fuel at the top of the curve, - the ecu would add it at part throttle conditions based on its own calculations - you just had to extend the curve at the limit.
Take care,
George
TM probably isn't limited to only protecting the transmission, or smooth drivability, but also the rest of the drive line, such as the rubber couplers for the drive shaft(s) for instance. Maybe those components are beefed up for the AMG cars but without checking part numbers for all the components in the driveline we just don't know.
It is worth noting, though, that the E350 BT makes 400 pound feet of torque @ 1600 RPM.
I'd love to see the torque curve using stock ECU from idle to 2800 (I think I read that the N/A 5.5 makes peak Tq from 2800 to 4800) with the TM system engaged and then without it engaged, and then the same thing with an OET'd ECU.
As far as I am aware the ECU doesn't know a thing about what octane fuel is in the tank, it only knows what the knock sensors are telling it. The ECU is either going to let the engine run with the max advance in the map or it isn't. Does the stock ECU have different maps loaded at the same time for different grades of gas? If so, how does it decide which map to use? It would have to be based how on much time the knock sensors spend retarding the timing I'd think.
My apologies, Jeremy, I'm just one of those guys who like to know the why's and how's.
Dan





