Power steering pump and fluid
MBWorld Fanatic!
Joined: Jun 2010
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From: Puerto Rico
2005 E55 AMG
The radiator liquid will expand as well and it's a sealed system, but it's pressurized so maybe you are right. Perhaps the cap is built it seal it until it builds some pressure and releases it when needed.
MBWorld Fanatic!
Joined: Dec 2006
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From: Clifton, NJ
96 and 08 911 turbos
Its not vented.
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From: Orlando
1967 Pro Touring turbo LSX Camaro
Of course it is vented. Do you suppose if you fill your PS reservoir cold and then drive, your system is under pressure, putting stress on your oil seals?
The different indicators on the stick are to show you where the levels should be at different temperatures to account for fluid expansion.
The different indicators on the stick are to show you where the levels should be at different temperatures to account for fluid expansion.
Thread Starter
MBWorld Fanatic!
Joined: Jan 2011
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From: Chicagoland
AMG
Either way, I think I found my leak. Front engine skid plate. Its all dried up, and there is no new fluid. So I topped it off, and drove around and now my steering is great again!
MBWorld Fanatic!
Joined: Dec 2006
Posts: 4,949
Likes: 39
From: Clifton, NJ
96 and 08 911 turbos
Of course it is vented. Do you suppose if you fill your PS reservoir cold and then drive, your system is under pressure, putting stress on your oil seals?
The different indicators on the stick are to show you where the levels should be at different temperatures to account for fluid expansion.
The different indicators on the stick are to show you where the levels should be at different temperatures to account for fluid expansion.
That said, I can't imagine that hydraulic fluid like pentosin will evaporate to the extent that it would significantly reduce the fluid level.
