Electronic/Motor sound coming from rear end!
-
Amgberg
- Posts: 192
- Joined: Sun Jun 29, 2014 3:03 pm
- Car: 2006 m45 sport blue tint, STR 20x10.5, full Megan exhaust.
2010 E63 ////AMG stock
Electronic/Motor sound coming from rear end!
I have notice weird electronic moter sound from the rear end. It's like a moter sound it does it at random times I was thinking fuel pump but idk. It has gotten louder. I was wondering if it's the hicas moter or leveling moter I'm lost.
-
Ilya
- Moderator
- Posts: 9204
- Joined: Fri Apr 23, 2010 11:20 pm
- Car: 2011 M56x but I spend a lot of time on my 2015 Kawasaki Vulcan S. Former owner of a 2007 M35x. Also take care of my wife's 2016 QX60.
- Location: Charlotte, NC
- Contact:
Re: Electronic/Motor sound coming from rear end!
You got a video? Only motor I can think of back there is the fuel pump...do you hear it while the car is on or when you go into ACC mode on the ignition?
-
Amgberg
- Posts: 192
- Joined: Sun Jun 29, 2014 3:03 pm
- Car: 2006 m45 sport blue tint, STR 20x10.5, full Megan exhaust.
2010 E63 ////AMG stock
Re: Electronic/Motor sound coming from rear end!
Yes and while driving.Ilya wrote:You got a video? Only motor I can think of back there is the fuel pump...do you hear it while the car is on or when you go into ACC mode on the ignition?
Re: Electronic/Motor sound coming from rear end!
You are lucky! It is giving you a nice heads up that it is on its last legs!Amgberg wrote:Yes and while driving.Ilya wrote:You got a video? Only motor I can think of back there is the fuel pump...do you hear it while the car is on or when you go into ACC mode on the ignition?
-
Amgberg
- Posts: 192
- Joined: Sun Jun 29, 2014 3:03 pm
- Car: 2006 m45 sport blue tint, STR 20x10.5, full Megan exhaust.
2010 E63 ////AMG stock
Re: Electronic/Motor sound coming from rear end!
It has been doing it for the pass 6 monthssteve_c wrote:You are lucky! It is giving you a nice heads up that it is on its last legs!Amgberg wrote: Yes and while driving.
I just figured it was the hicas system or the leveler-
Amgberg
- Posts: 192
- Joined: Sun Jun 29, 2014 3:03 pm
- Car: 2006 m45 sport blue tint, STR 20x10.5, full Megan exhaust.
2010 E63 ////AMG stock
Re: Electronic/Motor sound coming from rear end!
I'm guessing have to drop the gas tank to reach the fuel pump? smh
Re: Electronic/Motor sound coming from rear end!
The headlight leveler isn't a motor, it's just a sensor/potentiometer that makes the motor at the front move. I'd eliminate that.
Not sure if the RAS motor will make random noises, but, is this happening while the steering wheel is turned? Any lights on the dash?
Without hearing the noise, I'd like to throw the possibility of the differential. I've read that they could whine while on the way out.
For the fuel pump, you don't have to drop the tank. Remove the rear seat bottom (which would be noise insulation here) and if that's the problem, the noise will be amplified while you ride around. The pump is on the right side.
Do the check as suggested, by pushing the button to the ACC mode and listen for the pump noise to compare to what your trouble noise is.
Yes, they could get louder towards the end of life as well.
If you ever get to the point of removal, here's a video from youtube
Not sure if the RAS motor will make random noises, but, is this happening while the steering wheel is turned? Any lights on the dash?
Without hearing the noise, I'd like to throw the possibility of the differential. I've read that they could whine while on the way out.
For the fuel pump, you don't have to drop the tank. Remove the rear seat bottom (which would be noise insulation here) and if that's the problem, the noise will be amplified while you ride around. The pump is on the right side.
Do the check as suggested, by pushing the button to the ACC mode and listen for the pump noise to compare to what your trouble noise is.
Yes, they could get louder towards the end of life as well.
If you ever get to the point of removal, here's a video from youtube
-
Amgberg
- Posts: 192
- Joined: Sun Jun 29, 2014 3:03 pm
- Car: 2006 m45 sport blue tint, STR 20x10.5, full Megan exhaust.
2010 E63 ////AMG stock
Re: Electronic/Motor sound coming from rear end!
Well today I started my car and it stumble on start 3 times then 4th it starts as normal. Before I get the fuel pump was wondering if the m45 fuel pump resistor is in the rear as well and can it make noise?