Comfort to Sport in the E400

[ianwh4]

The 2015 E400 that I've had for the past seven years. I often use the default comfort setting when driving, although I do sometimes switch to sport mode while in flight.

I just realised that when I go on a trip, it switches to Sport mode from Comfort mode somewhat abruptly.

[ianwh4]

The S M E switch appears to be operating as intended.

It doesn't seem to trigger Sport mode and doesn't seem to be an issue. Also, I don't think Sport modifies the suspension on my car.

The S.M.E. switch still works for me to alter modes.

The yearly service, which includes changing the gearbox fluid, is scheduled for early June.

Would appreciate it if someone could provide some light on this matter.

[ianwh4]

https://www.ebay.co.uk/sch/i.html?_nkw=transmission fluid&campid=5338181132&customid=2518X1570512Xe5eab94982a2c69e7715511751b0dcc5&mkcid=1&mkrid=710-53481-19255-0&subId2=15&toolid=10001

[Screwdriver_1]

As far as I can tell, the glowing light just modifies the suspension to make it more sporty.
The E/M/S buttons on the left are responsible for adjusting the engine's characteristics; this button does not accomplish that.

Is it possible that the vehicle has detected your preferred driving style and adjusted the suspension accordingly?

[ianwh4]

Your response is greatly appreciated. 

"The 2015 Mercedes-Benz E400 cannot learn from driving behaviour in Comfort mode; the mode operates with fixed, manufacturer-set parameters," reads the web page claiming to have confirmed this.

Although I have never experienced a change in suspension, I am aware of a change in how well I can grip the gears.

It won't return to Comfort mode even when I hit the button when it switches to Sport mode automatically.

[br1anuk]

Perhaps a broken switch? A scan might reveal something.

[EatSuru]

Have you ever had a drink spill on the switch panel?

[CheresX]

Those were the functions of both buttons on my E400.

I recall that the steering grew heavier, the throttle became more forceful, and the engine changed gear at greater RPM when I used the Sport button.

Those wheels were very cool.

[ianwh4]

It might be a defective switch, I hope. Nothing that I can think of has ever been spilt on it.

As far as I can tell, it isn't creating any issues right now, and I seldom use Sport.

I will inform the dealer about the booking for the yearly service since, as said before, I saw the problem before it happened.
Warm regards

[AMG33D]

Not the same vehicle, but switches under the shifter have given me trouble in the past. Do it again after removing and cleaning with a high-quality contact cleaner.

After much cleaning, I decided to replace a switch because it was just twelve euros and the cleanup was effective.