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E63 Cannot Rev over 3,500 RPM in Park?

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Old 04-21-2009, 12:49 AM
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2008 E63, White/Black, P030
E63 Cannot Rev over 3,500 RPM in Park?
Today I wanted to rev my E63 to hear the nice exhaust growl but can't, it will slowly rev to about 3,500 rpm. Is it normal and is there a way to defeat this? I noticed other vehicles like to M6 could, why can't the E63.
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Old 04-21-2009, 12:59 AM
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Because you shouldn't. It is normal.
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Old 04-21-2009, 01:33 AM
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Originally Posted by jangy
Because you shouldn't. It is normal.
This.
Actually, I tried that last night. I am kind of relieved that you can't. It gives me a peace of mind.
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Old 04-21-2009, 05:19 AM
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If you wanted to rev it(My advice, just leave it in gear, rock and roll the whole thing), put it in drive, then bump it to N and rev quick, I think you need to be doing at least 15mph.
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Old 04-21-2009, 01:32 PM
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Originally Posted by jangy
Because you shouldn't. It is normal.
+1, it's a safety feature.
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Old 04-21-2009, 02:14 PM
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It is to keep stupid people from attempting neutral drops and damaging driveline components from doing so.
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Old 04-21-2009, 06:13 PM
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You're not suppose to REV the engine when you're in PARK. I suspect that you already took several thousand miles of useful life out of your transmission. If you need to REV the engine, do it in neutral.
Last edited by AZIPOD; 04-21-2009 at 07:28 PM.
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Old 04-21-2009, 07:20 PM
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a toy
Originally Posted by Blacksport350
It is to keep stupid people from attempting neutral drops and damaging driveline components from doing so.
They won't allow a neutral drop at any rpm anyway. Dropping it into gear will force the rpm down to idle before engaging.
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Old 04-21-2009, 09:10 PM
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On most mfg this is a safety feature set in the parameters of the tune.

...esp automatics...

Someone once said it was to keep the torque convertor from grenading
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Old 04-21-2009, 09:15 PM
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Originally Posted by KV3BLUE
Today I wanted to rev my E63 to hear the nice exhaust growl but can't, it will slowly rev to about 3,500 rpm. Is it normal and is there a way to defeat this? I noticed other vehicles like to M6 could, why can't the E63.
As everyone else said, its there for a protective reason. The M6 doesnt have park so its either in neutral, drive, or sequential mode.
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Old 04-21-2009, 10:59 PM
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+1, M6 is a manual so you can't hurt it in park. It's really not good to rev an auto in park at all.
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Old 04-22-2009, 12:35 AM
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Originally Posted by Roupin
They won't allow a neutral drop at any rpm anyway. Dropping it into gear will force the rpm down to idle before engaging.

How do you know?
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Old 04-22-2009, 12:54 AM
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Get on a hill.

Start rolling about 10MPH in N

You can rev to your hearts content. I did this once by accident. The best thing I can say is that with no load the engine revs "freely". Very quick.
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Old 04-24-2009, 09:00 AM
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a toy
Originally Posted by jangy
How do you know?
Heard about it. Once.
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