Car gurgled now grinds when not accelerating

ALIVE90

MEMBER
1997 MERCEDES BENZ C230
257,000 MILES

I was driving to work this morning and my car bogged popped then gurgled. Now when I am not accelerating it makes a grinding noise.

Tuesday, October 30th, 2018 AT 10:08 AM

5 Replies

BMDOUBLE

MECHANIC
1,139 POSTS

A good visual inspection should take place if you have not already. Make sure the intake tubing is fully attached between throttle body and the air filter housing. Of course check all fluid levels and make sure the belt/s are still attached. Let us know what you find.

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Tuesday, October 30th, 2018 AT 11:48 AM

ALIVE90

MEMBER
3 POSTS

I checked the intake and it is firmly attached I added a quart of oil and transmission fluid as well as power steering etc, making sure not to over fill. After another test ride I have determined that is is more of a rubbing noise coming from my back passenger wheel area. I cannot tell if something is rubbing but it only does it while the car is moving.

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Wednesday, October 31st, 2018 AT 9:00 AM

BMDOUBLE

MECHANIC
1,139 POSTS

Sounds like a fuel pump if this is affecting the performance of your vehicle. I am going by the "bogged, popped and gurgled" in your story. If it is not affecting the performance then it may be a wheel bearing or other moving part in that area.

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Wednesday, October 31st, 2018 AT 1:36 PM

ALIVE90

MEMBER
3 POSTS

I am thinking wheel bearing or possibly lock. I recently changed my fuel filter and pump as well as the whole line. It does not lose performance so much as I am worried to hit it too hard.

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Wednesday, October 31st, 2018 AT 2:19 PM

KEN L

MASTER CERTIFIED MECHANIC
42,883 POSTS

Yep, it sounds like a rear axle bearing is going out. Can you please shoot a quick video with your phone so we can hear the noise? That would be great. You can upload it here with your response.

Here are diagrams and a guide to help you see what it will be like to change it out:

https://www.2carpros.com/articles/how-to-replace-a-cv-axle-bearing

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Cheers, Ken

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