Q: Q: Differential Noise

asked by on

Hi, I recently purchased a bmw. I started hearing a whining/grinding noise coming from the car when I accelerate. It seems to be coming from the back but I am not sure. After extensive research I believe it is the differential. However I would like to know is there a possiblity that changing the oil in the differential could make the noise go away or would I have to replace the whole differential. The whining/grinding noise is very loud.

My car has 160000 miles.
My car has a manual transmission.

Hello. The noise you are hearing could very well be the differential. The fact it becomes worse when you accelerate is a good indication. The best way to tell is simply to do an inspection. Changing the oil regularly is the best way to prolong the lifespan of the differential. Once enough damage has been done, you will need to replace it. The noise sounds like it has significant damage. The differential wouldn’t make a grinding noise otherwise. You can drain and inspect the differential, but you should be ready to make the full repair need be. Otherwise you will waste differential fluid having to fill it up and take it to the shop. Our mechanics do make house calls if you get yourself in over your head.

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: Differential 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: When accelerating the car begins to jerk real bad.

Usually when the Check Engine Light flashes, it is an indication that you have a severe misfire that may cause damage to the catalytic converter. Most of the time this is due to failing ignition components. That is why it...

Q: Sulphur blocking the catalytic converter

Hello. If you had an injector coil issue, then that will usually cause the converter to become clogged and fail. If it is clogged, then it needs to be replaced as driving it will not clear it up. You will...

Q: P2138

Hi There, Code P2138 relates to what is called a throttle position sensor. The throttle position sensor monitors the throttle position of the throttle plate inside the throttle body in relation to your foot position on the gas pedal. Based...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...