Power steering pump fluid

R2SEHGAL

MEMBER
2008 MERCEDES BENZ ML350
55,000 MILES

My power steering pump fluid is leaking. About three months back I had to replace the fluid when I got low fluid warning. Since then I see small drops of fluid in my garage floor and in the vehicle frame as well.

Would appreciate any directions you could provide.

2 Replies

STEVE W.

MECHANIC
13,014 POSTS

The only real thing to do is to clean off the fluid and then see where the leak starts. The easier way to do that is to wash the area down, let it dry, then dust the hoses and fittings with baby powder. Start the engine, move the wheel side to side and look for the area the powder changes to the color of the steering fluid.

I would say it is likely on the return side of the system because you added fluid three months ago and it has not turned on the warning light yet.

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Saturday, January 21st, 2017 AT 9:57 AM

SATURNTECH9

MECHANIC
30,869 POSTS

It could be the rack and pion leaking into the rack boots they can leak slowly. Also the high pressure line can leak slow at first as well. They even sell power steering leak dye you can trace the leak with a black dye light.

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Monday, January 23rd, 2017 AT 8:10 PM