Q: Q: Loud humming noise

asked by on

I had a low battery in my CLK500 and got it charged just recently. Then it started doing this loud humming noise right after I had been driving and then turning off the car. This never happened before. It doesn’t do this every single time but off and on quite often. What could this be? Should I take my car into the shop?

Hello. There could be a problem with the alternator not charging properly, causing low battery voltage. This could cause electrical components to come on and off when they shouldn’t. The alternator could be making the humming noise you hear if the bearings are going bad. I would suggest that you have a certified technician, complete an inspection of the electrical system, in order to pinpoint the problem and recommend the necessary repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Q: Loud humming noise

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Q: Car won't start

Try to move the steering wheel back and forth while turning the key. You may have bound up the steering lock when the vehicle was parked. If the key turns okay now, then the vehicle should start. If the steering...

Q: Front Axle Clanking Sounds

The front axle joints may be bad and binding from worn out ball bearings in the constant velocity (CV) joint. You may also have wheel bearing and ball joint issues and possible struts. All these could be possible causes of...

Q: Brake pads fixed, parking brake, car won't start.

If the parking brake warning light is on and yet the parking brake is disengaged, that typically means that the switch is stuck. If the warning light yo are seeing though relates to the brakes generally, that could mean the...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.