Recently, the past few weeks I noticed splashing sound when the car is in motion. My car is an 03 (1st edition). I took it to the dealership they said it is the brake fluids doing that. I don't think so due to its "larger volume of fluid" sound.

Any help?

 

I don't see how it could have anything to do with brake fluid.

The only thing I can think of that you may here is gasoline slopping around in the tank.
Unless someone left a 1/2 bottle of water in the back somewhere.

BTW-- Welcome and g/l with your issue.

 

the sound appears to be coming from the engine just in front of the driver.
It's like a jug of water in the engine bay. I pop the hood and I don't see any
wet spot or signs of any liquid.

 

That's 3.5 liters of power slopping around.

 

It may be the evaporator for the AC. Does it sound like a waterfall on the passanger side under the dash? I had Blazer that had a similar problem. It gets clogged up. If so, you will need to have the system flushed. It took several times before the problem cleared up.

 

If your right, Infiniti need to top it off to 4.5 liters to stop the slopping noise

 

How about the windshield wiper fluid reservoir [though it is on the passenger side I believe]?

 

I have the exact same thing happening in my car. It seems to happen with accelerating from a stop (most noticeable). I plan on mentioning it next time I take the car in...

g4ian

 

That's it accelerating from a stop that's when it is reproducible.
Is there a TSB on it?