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Can anyone verify if the trim (Sport vs Luxury) on the 2018 E400 wagon affects the exhaust system? Wondering if the 2018 E400 Luxury will have exhaust valves (and downshift crackles??) as is demoed in this video on an E400 sedan (which is a sport trim as far as I can tell).
I have an E400 coupe. The exhaust sound definitley changes between driving modes. I do not hear any backfire or crackle when I accelerate. But in sport plus mode I do hear some crackle, very subtle, if I lift off the gas while accelerating.
I had watched the video before getting my E400 so I did not watch it before writing my previous post. Have now rewatched the video and what is shown is consistant with what my E400 does.
I have an E400 coupe. The exhaust sound definitley changes between driving modes. I do not hear any backfire or crackle when I accelerate. But in sport plus mode I do hear some crackle, very subtle, if I lift off the gas while accelerating.
Correct me if I'm wrong, but isn't the coupe only available in sport trim? I'm trying to find out if sport vs luxury has any effect on the exhaust system. The luxury option on the MB site doesn't mention anything about the exhaust, but I'd just be surprised if the 2018 E400 wagon Luxury trim has adjustable exhaust valves.
we own a 2017 E luxury wagon. It has 329 horsepower. The vedio indicates that the 2017 Mercedes has 333 horsepower.
Our wagon does not make the sounds you hear in the vedio.
Your question was about the 2018 wagon so our experience with our 2017 wagon may not answer your question. However, I looked on the Mercedes website and the 2018 United States wagon has 329 horsepower.
I wonder if the Mercedes in the vedio was built for European consumption.
Does anyone know whether European E 400 produced more horsepower and noise?
No E class has exhaust valves. On the E 63 they are optional. The 43 series crackles are software induced. The 400 does not have crackles at all. The louder tone on the 43 and 400 on sport plus are mostly due to higher baseline RPMs and its been rumored that are also stereo enhanced. I have an E 43 with the comfort package and can barely hear anything, regardless of setting. Even with the windows down the crackles are barely heard given the wind noise. I test drove a gle 43 and the crackling was silly and continous as if it had eaten bad tacos the night before. BTW I didnt like the GLE 43, unlike the sedan, the AMG parts didnt feel organic at all. After a brief brisk drive I cooked the brakes and the handling was torpid. The GLS 550 that I drove drove a lot better despite being a lot bigger, taller and heavier, in fact the GLS was a blast to drive, powerful in spades and surprisingly agile while maintainig and incredibly smooth ride. Those adaptive sway bars are really, really effective.
In the video (must be outside of US since there's no US-spec E400 sedan offered), you can clearly hear servos opening exhaust valves, and the exhaust note changing outside of the car afterward (not stereo-produced sound).
I'm wondering if the valves are 1) only euro-spec 2) only available on the sedan 3) if Luxury vs Sport line has any effect on them being there.
No E class has exhaust valves. On the E 63 they are optional. The 43 series crackles are software induced. The 400 does not have crackles at all. The louder tone on the 43 and 400 on sport plus are mostly due to higher baseline RPMs and its been rumored that are also stereo enhanced. I have an E 43 with the comfort package and can barely hear anything, regardless of setting. Even with the windows down the crackles are barely heard given the wind noise. I test drove a gle 43 and the crackling was silly and continous as if it had eaten bad tacos the night before. BTW I didnt like the GLE 43, unlike the sedan, the AMG parts didnt feel organic at all. After a brief brisk drive I cooked the brakes and the handling was torpid. The GLS 550 that I drove drove a lot better despite being a lot bigger, taller and heavier, in fact the GLS was a blast to drive, powerful in spades and surprisingly agile while maintainig and incredibly smooth ride. Those adaptive sway bars are really, really effective.
My E400 absolutely has crackles in the sport plus mode. The same as in the video. They are noticeable enough that a passenger commented on them without having been told about them.
In the video (must be outside of US since there's no US-spec E400 sedan offered), you can clearly hear servos opening exhaust valves, and the exhaust note changing outside of the car afterward (not stereo-produced sound).
I'm wondering if the valves are 1) only euro-spec 2) only available on the sedan 3) if Luxury vs Sport line has any effect on them being there.
I repeat there are no valves on any mb period, noteven the 63. The 63 only offers them as an option called the sport exhaust option. They are controlled by a separate button. The valve is essentially a hole on the side of the muffler
Again, in the US only available as a 1200 dollar option on the E 63 maybe in the future also on the 43.
Wrong. There is also a sport exhaust available on the C43 for $1,250. Clearly listed on the MBUSA page as an option. I have also driven a C43 with the optional exhaust as well as one without it.
Also the presence or absence of an optional exhaust provides zero evidence of whether or not the standard exhaust might or might not have flaps, and thus a changeable sound, as detailed in the two links in the two links I posted.
Wrong. There is also a sport exhaust available on the C43 for $1,250. Clearly listed on the MBUSA page as an option. I have also driven a C43 with the optional exhaust as well as one without it.
Also the presence or absence of an optional exhaust provides zero evidence of whether or not the standard exhaust might or might not have flaps, and thus a changeable sound, as detailed in the two links in the two links I posted.
The c43 is not an E...... As I said from the beginning the sport exhaust is only optional on AMG models. There are no fart valves on any other models
You will forgive me, I do not recall ever saying the optional sport exhaust was available on non AMG vehicles.
As for the presence or absence of valves, or flaps, in a standard exhaust, I can believe what I see in a video, what I read in two separate articles by a Mercedes dealer, and what my own ears hear, or I can believe you. I will go with the first option at this point.
But always trying to be open minded, if there are no valves or flaps in my car, why does it crackle only in sport plus and in no other modes? Is there something else that would switch on the crackle in sport plus? And only in sport plus?
I repeat there are no valves on any mb period, noteven the 63. The 63 only offers them as an option called the sport exhaust option. They are controlled by a separate button. The valve is essentially a hole on the side of the muffler
your comment that “ there are no valves on any mb period”, which you did not limit to E class vehicles, is why I mentioned the C43.
I have ordered an E63S. I was told that the performance exhaust adds two additional exhaust flaps. I was told there are two flaps on the standard E63S.
I have ordered an E63S. I was told that the performance exhaust adds two additional exhaust flaps. I was told there are two flaps on the standard E63S.
I don €™t know about the E400 or even the E43.
That makes perfect sense and matches exactly the following, which mentions the standard exhaust having an automatic flap, and the optional sport exhaust.
we own a 2017 E luxury wagon. It has 329 horsepower. The vedio indicates that the 2017 Mercedes has 333 horsepower.
Our wagon does not make the sounds you hear in the vedio.
Your question was about the 2018 wagon so our experience with our 2017 wagon may not answer your question. However, I looked on the Mercedes website and the 2018 United States wagon has 329 horsepower.
I wonder if the Mercedes in the vedio was built for European consumption.
Does anyone know whether European E 400 produced more horsepower and noise?
the exhaust pops come at low speeds in Sport or Sport+ modes when you accelerate, then let the car gear brake itself. have you guys never owned a Manual? or any other sporty car??
Older thread, sorry to resurrect it. I see something listed as an "exhaust gas flap controller" part number 213-906-18-02 with Mercedes for fitment on a 2017 E400 4matic. So i'm inclined to think they do exist.
Is this responsible for the pops and bangs? Probably not the only contributor. Most pops and bangs are caused by retarding the ignition timing event to be severely retarded, while still pulsing the injectors enough for some fuel to enter the combustion chamber. The retarded ignition event happens after Top Dead Center when the exhaust valves are beginning to open. This allows the explosion/bang from the fuel being ignited by the spark plug to occur and propagate down the path of the exhaust system where it is more audible.
So, essentially you need to have a map for the ignition that tells the coil to fire much later in the cycle and you also need to have your decel fuel-cut to be either off or delayed so that at least some fuel is injected in when the throttle plate is closed and TPS sensor is reporting closed throttle condition. A freer flowing exhaust/muffler will make these bangs and pops more noticeable. This is what Sport+ is doing.
2019 E 450, 2016 E350 4matic (retired), 2018 Ford Edge Sport, 2008 Porsche Boxster
Originally Posted by pampadori
Older thread, sorry to resurrect it. I see something listed as an "exhaust gas flap controller" part number 213-906-18-02 with Mercedes for fitment on a 2017 E400 4matic. So i'm inclined to think they do exist.
Is this responsible for the pops and bangs? Probably not the only contributor. Most pops and bangs are caused by retarding the ignition timing event to be severely retarded, while still pulsing the injectors enough for some fuel to enter the combustion chamber. The retarded ignition event happens after Top Dead Center when the exhaust valves are beginning to open. This allows the explosion/bang from the fuel being ignited by the spark plug to occur and propagate down the path of the exhaust system where it is more audible.
So, essentially you need to have a map for the ignition that tells the coil to fire much later in the cycle and you also need to have your decel fuel-cut to be either off or delayed so that at least some fuel is injected in when the throttle plate is closed and TPS sensor is reporting closed throttle condition. A freer flowing exhaust/muffler will make these bangs and pops more noticeable. This is what Sport+ is doing.
FWIW: At 40,000 miles under the extended warranty my exhaust system was replace: The valve in the exhaust that permits the pops and bangs in Sport+ failed. The dealer tried to lubricate it, but it did not work. The entire exhaust system had to be replaced.
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