Wierd noise while stopped at light with eco on and sport mode
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E350
Wierd noise while stopped at light with eco on and sport mode
I've had my 2014 E350 sport for 2 months now and tried the sport mode for the first time. Shortly after switching to S mode, while stopped at a long light with eco on, there was a strange noise that sounded like an on and off pulsating revving noise, that repeated until I stepped on the gas to go.
Any clues as to what this could be?
Any clues as to what this could be?
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E 350
Does the sound happen while the engine is "on" or "off"?
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
I've had my 2014 E350 sport for 2 months now and tried the sport mode for the first time. Shortly after switching to S mode, while stopped at a long light with eco on, there was a strange noise that sounded like an on and off pulsating revving noise, that repeated until I stepped on the gas to go.
Any clues as to what this could be?
Any clues as to what this could be?
It's the trans pump likely circulating transmission fluid
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E350
Thank you all for your responses.
I didn't know that Karora, Information about E or S mode is not in the written manual it say's to check the onboard manual which I will.
Pamiboy, I think eco was yellow and turned to green about that same time. I got to thinking that possibly this was a glitch with the eco trying to activate??
PeterUbers, It could be but, I've never heard it before - seems as though a noise when the trans pump is circulating fluid would have been heard before.
I didn't know that Karora, Information about E or S mode is not in the written manual it say's to check the onboard manual which I will.
Pamiboy, I think eco was yellow and turned to green about that same time. I got to thinking that possibly this was a glitch with the eco trying to activate??
PeterUbers, It could be but, I've never heard it before - seems as though a noise when the trans pump is circulating fluid would have been heard before.
Out Of Control!!
Joined: Jun 2004
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
Thank you all for your responses.
I didn't know that Karora, Information about E or S mode is not in the written manual it say's to check the onboard manual which I will.
Pamiboy, I think eco was yellow and turned to green about that same time. I got to thinking that possibly this was a glitch with the eco trying to activate??
PeterUbers, It could be but, I've never heard it before - seems as though a noise when the trans pump is circulating fluid would have been heard before.
I didn't know that Karora, Information about E or S mode is not in the written manual it say's to check the onboard manual which I will.
Pamiboy, I think eco was yellow and turned to green about that same time. I got to thinking that possibly this was a glitch with the eco trying to activate??
PeterUbers, It could be but, I've never heard it before - seems as though a noise when the trans pump is circulating fluid would have been heard before.
Post a video of the noise... I'm sure that will help tremendously
Last edited by PeterUbers; Oct 15, 2014 at 01:32 PM.
Out Of Control!!
Joined: Jun 2004
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
I've had my 2014 E350 sport for 2 months now and tried the sport mode for the first time. Shortly after switching to S mode, while stopped at a long light with eco on, there was a strange noise that sounded like an on and off pulsating revving noise, that repeated until I stepped on the gas to go.
Any clues as to what this could be?
Any clues as to what this could be?
And when you step on the gas the engine turns on and the car drives normal?
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E350
Thank you again for responding PeterUbers, it's very nice of you. Stupidly, I don't know if the eco was activated or not at that moment because the "ECO" on the instrument panel was yellow and I wasn't watching to see when it turned green. Unfortunately I had also switched to S Mode not paying attention to whether or not the ECO was yellow or green. The noise might even have occurred when it did turn green and activated. The noise did go away when I stepped on the gas and the car drove normal. I didn't hear the noise again. I read where the eco only comes on in an S Class when in E mode but can't find anything about that for the E Class, even in the onboard owners manual.
Re: "Post a video of the noise... I'm sure that will help tremendously" I wouldn't have a clue how make a video of the noise, lol.
Re: "Post a video of the noise... I'm sure that will help tremendously" I wouldn't have a clue how make a video of the noise, lol.
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Out Of Control!!
Joined: Jun 2004
Posts: 13,799
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
Thank you again for responding PeterUbers, it's very nice of you. Stupidly, I don't know if the eco was activated or not at that moment because the "ECO" on the instrument panel was yellow and I wasn't watching to see when it turned green. Unfortunately I had also switched to S Mode not paying attention to whether or not the ECO was yellow or green. The noise might even have occurred when it did turn green and activated. The noise did go away when I stepped on the gas and the car drove normal. I didn't hear the noise again. I read where the eco only comes on in an S Class when in E mode but can't find anything about that for the E Class, even in the onboard owners manual.
Re: "Post a video of the noise... I'm sure that will help tremendously" I wouldn't have a clue how make a video of the noise, lol.
Re: "Post a video of the noise... I'm sure that will help tremendously" I wouldn't have a clue how make a video of the noise, lol.
I would imagine if you heard a new noise it was because the engine was off and you were more aware of a new sound
