Power steering fluid boiling over?
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From: Los Angeles
2009 C63
Power steering fluid boiling over?
For all you track junkies,
how do you deal with this, I had my fluid boiling and seeping out from the power steering cap and then it would drip on the belt and get flung everywhere? I wasn't going that hard (1st track day) but it happened on the 2nd or 3rd session.
Also what tire pressures do you recommend compared to stock daily driving? I run 39 all around on nt05s so for a track day should I expect to bump them up and see from there?
how do you deal with this, I had my fluid boiling and seeping out from the power steering cap and then it would drip on the belt and get flung everywhere? I wasn't going that hard (1st track day) but it happened on the 2nd or 3rd session.
Also what tire pressures do you recommend compared to stock daily driving? I run 39 all around on nt05s so for a track day should I expect to bump them up and see from there?
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From: Montreal, Canada
2021 Taycan Turbo, 2018 Radical SR3, 2021 Lincoln Aviator
Ran 35 psi all around with NT01 and it was perfect. For power steering fluid did not check yet but i will for sure now that you bring it up!
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From: Hong Kong/Charlotte
2010 C63
I didn't deal with it, other than pulling over every 15 minutes or so and sitting for 10 minutes with three friggin' fans on the car. I know when it is acting up, b/c I can hear and feel the power steering pump cavitating.
I am going out in a week, and so I just had the power steering system flushed and the fluid changed. I also bought a second cap, which probably won't do *****, but on the 0.1% chance it is the cap, I have it. Also, someone suggested taking off the front engine panel on the theory that it would help cool the resevoir. I think that is a bad idea, b/c I do not want fluid flying all over the engine compartment and possibly hitting a header. And the amount of additional cooling it might provide is minimal, at best.
Hopefully the flush has dislodged some small particle in the system that was causing the problem, but I doubt it. We'll see.
I am going out in a week, and so I just had the power steering system flushed and the fluid changed. I also bought a second cap, which probably won't do *****, but on the 0.1% chance it is the cap, I have it. Also, someone suggested taking off the front engine panel on the theory that it would help cool the resevoir. I think that is a bad idea, b/c I do not want fluid flying all over the engine compartment and possibly hitting a header. And the amount of additional cooling it might provide is minimal, at best.
Hopefully the flush has dislodged some small particle in the system that was causing the problem, but I doubt it. We'll see.
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From: San Diego, CA
07 RS4 sold, R53 Cooper S, 2008 Cayman S, 2012 GTR
Zip tie a mircofiber towel over the cap, that is what we do here. As for the tire pressure, that would honestly depend on what tires your running as different tires have different sweat spots for tire pressure.
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From: Los Angeles
2009 C63
Yea it was only a couple tablespoons if I had to guess, but the belt flinging it made it look a lot worse. Some of the SRT guys that day mentioned it's pretty common and there isn't much to do besides what James suggested - wrapping it up or fixing the rubber seal on the underside of the cap.
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From: Hong Kong/Charlotte
2010 C63
Ran this weekend at Roebling Road with 2 other C63's, a couple of E63's and a CLK63BS. All of them were leaking power steering fluid from the reservoir. Flushing the power steering fluid seemed to get rid of the steering shimmy in long turns that I have had in the past - I assume from the pump getting air in it. My car flung a lot of steering fluid at first, I assume b/c it was too full. After that, it just kept the reservoir wet. After seeing all the 63 cars with this same issue, I assume it is normal and nothing to worry about. I did not put any rags or anything else over it, b/c it is soo hot under there I was afraid it would either melt or catch fire.
For what it is worth, an MB tech at the event took several photos and sent them to the AMG Driving Academy to see what the driving academy does about this. I'm not expecting a reply, but you never know.
For what it is worth, an MB tech at the event took several photos and sent them to the AMG Driving Academy to see what the driving academy does about this. I'm not expecting a reply, but you never know.
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From: San Jose, CA
2007 E63 w/P30 and Eurotech CF Diffuser
Ran out to me car after reading this.
No leaks from this https://mbworld.org/forums/w211-amg/...ml#post4733458
See final session if anything.
No leaks from this https://mbworld.org/forums/w211-amg/...ml#post4733458
See final session if anything.
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From: Alexandria, VA
07 E63 AMG, 10 C63 AMG, 07 E63 Designo, 07 E350, 09 C300, 07 C230
I would recommend that you change your power steering fluid to something that has a higher boiling point.
Last edited by Yuille36; Jun 28, 2011 at 08:57 AM.
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2012 C63;1971 280SE 3.5(Sold);2023 EQS 450 SUV 4 Matic (Wife's)
MBWorld Fanatic!
Joined: Apr 2009
Posts: 6,020
Likes: 532
From: Alexandria, VA
07 E63 AMG, 10 C63 AMG, 07 E63 Designo, 07 E350, 09 C300, 07 C230
