08' ML 350 Engine Noise in the morning - Mercedes-Benz Forum

 
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post #1 of 6 (permalink) Old 08-22-2013, 06:59 AM Thread Starter
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Post 08' ML 350 Engine Noise in the morning

I changed the brakes pads when the warning message started displaying that they needed change. All went fine, no issues. Apparently not, Next morning I started the car and heard a low noise and did not pay attention, but when I pressed on the brakes they made a low base sound and also when I moved my steering wheel, the noise went away after braking a few times and stayed away all day.

Now, a week and a half later, the noise still comes on in the morning and starts as soon as I start moving the steering wheel and pressing the brakes and goes away after a few brakes.

08, 40580 Miles ML 350, Brake Fluid full, no warning messages or lights.

Any thoughts?
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post #2 of 6 (permalink) Old 08-23-2013, 03:53 AM
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Strange that it went away after braking and stayed away. Maybe it's best to stop by a garage and ask someone to take a quick look.
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post #3 of 6 (permalink) Old 08-23-2013, 03:57 AM
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What pads were used and were the rotors replaced?

I am assuming they were the front brakes. If it was a full front and rear brake job the parking brake shoes my need adjustment especially if new rotors were installed.
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post #4 of 6 (permalink) Old 08-23-2013, 06:49 AM Thread Starter
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Found it

I checked the Power steering fluid container and it was almost empty!!! WTF.. I added a full bottle of steering fluid and it all came back to normal.
Cost $4.00, called the dealer and they asked for $75.00 service Inspection fee and that did not include any fluids if needed.

I had the car at 28000 miles at the dealer for the so called "B" Service and they also inspected the "A" service items too and they missed to check the steering fluid. I called and gave them a piece of my mind.


Here is another example of the dealer overpricing:

Change Brake Pads and Rotors:
Dealer:
$600.00 Plus tax and at least one day in service bay.
DIY:
Brake Pads front and rear: $50+ and 60+ $110.00 Semi Metallic
Sensors X 2 $7.88 each $15.66
Rotors X 4 @ $45.00 each $180.00
Total: $305.66 +- %5

DIY instruction: Easy install - 2 to 3 hours in your garage.

You’ve got to keep your guard up at all times ... LOL.

Thanks for the responses
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post #5 of 6 (permalink) Old 08-23-2013, 08:29 AM
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Owning a Mercedes is a lot less expensive if you do as much as you can yourself and use a good independent mechanic for the heavier work. I wouldn't be able to afford mine if I'd had to take it to the dealer for everything.
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post #6 of 6 (permalink) Old 08-23-2013, 12:01 PM
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Quote:
Originally Posted by The Pharou View Post
I checked the Power steering fluid container and it was almost empty!!! WTF.. I added a full bottle of steering fluid and it all came back to normal.
Cost $4.00, called the dealer and they asked for $75.00 service Inspection fee and that did not include any fluids if needed.

I had the car at 28000 miles at the dealer for the so called "B" Service and they also inspected the "A" service items too and they missed to check the steering fluid. I called and gave them a piece of my mind.


Here is another example of the dealer overpricing:

Change Brake Pads and Rotors:
Dealer:
$600.00 Plus tax and at least one day in service bay.
DIY:
Brake Pads front and rear: $50+ and 60+ $110.00 Semi Metallic
Sensors X 2 $7.88 each $15.66
Rotors X 4 @ $45.00 each $180.00
Total: $305.66 +- %5

DIY instruction: Easy install - 2 to 3 hours in your garage.

You’ve got to keep your guard up at all times ... LOL.

Thanks for the responses
It is good that the noise was found. However there is no way the correct spec MB PS fluid was obtained for $4. It is $10-$12 a pint and on sale it is $18-$22 per liter. What brand of fluid did you use?
At the price of the pump and rack I would flush out all PS fluid and replace it with the correct fluid.
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