Blow off valve issue?
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Joined: Jul 2007
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From: Frisco, TX
GLE55
Blow off valve issue?
I own a 2005 E55 with 20k miles and I am experiencing an odd issue. In 1st or 2nd gear from low rpms when I accelerate to approx 1/2 throttle the blow off valve goes off causing a hickup in the power delivery. Any input appreciated.
Thread Starter
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Joined: Jul 2007
Posts: 228
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From: Frisco, TX
GLE55
Thread Starter
Member
Joined: Jul 2007
Posts: 228
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From: Frisco, TX
GLE55
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From: Valley of the Sun, Arizona
C63, SL55, E55, CLS55, ML63, C55
The 55k engine has a bypass valve sitting under the throttle body housing. It could be opening up for some reason. However if it is there would be a fault code (not CEL). I would check the fault code. It really could be a range of things From voltage issues, to spikes in intercooler temps. The list could go on without knowing if there is a fault code. You will have to seek someone out to read the fault codes.
The simplest thing to do might be to reset the adaptations in the car. Search for "sneaky ECU reset" there is a step by step walk through on how to do it. Or you can disconnect your battery for a while. None of these may help you, but at least its a place to start.
The simplest thing to do might be to reset the adaptations in the car. Search for "sneaky ECU reset" there is a step by step walk through on how to do it. Or you can disconnect your battery for a while. None of these may help you, but at least its a place to start.
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Thread Starter
Member
Joined: Jul 2007
Posts: 228
Likes: 14
From: Frisco, TX
GLE55
The 55k engine has a bypass valve sitting under the throttle body housing. It could be opening up for some reason. However if it is there would be a fault code (not CEL). I would check the fault code. It really could be a range of things From voltage issues, to spikes in intercooler temps. The list could go on without knowing if there is a fault code. You will have to seek someone out to read the fault codes.
The simplest thing to do might be to reset the adaptations in the car. Search for "sneaky ECU reset" there is a step by step walk through on how to do it. Or you can disconnect your battery for a while. None of these may help you, but at least its a place to start.
The simplest thing to do might be to reset the adaptations in the car. Search for "sneaky ECU reset" there is a step by step walk through on how to do it. Or you can disconnect your battery for a while. None of these may help you, but at least its a place to start.
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From: Valley of the Sun, Arizona
C63, SL55, E55, CLS55, ML63, C55
When the bypass valve opens up i'm pretty sure the supercharger disengages. So the could be something going on with the clutch.
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GLE55
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From: toronto
Gallado Spyder / AMG C63S / Cayenne
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E-ZGO 53hp., 1999 E 430 sport, 2004 E 55, 2008 Tahoe LTZ on 24"s
No blow off valve on E55K.
What you hear and feel is the supercharger engaging. As you press the throttle and demand more power the supercharger comes on line and causes a 30-40 hp loss then in a split second the boost makes the engine produce much more power.
All E55K have this characteristic, it is normal.
Over 500 posts on the topic, don't worry every newbe asks same.
What you hear and feel is the supercharger engaging. As you press the throttle and demand more power the supercharger comes on line and causes a 30-40 hp loss then in a split second the boost makes the engine produce much more power.
All E55K have this characteristic, it is normal.
Over 500 posts on the topic, don't worry every newbe asks same.
MBWorld Fanatic!
Joined: Jul 2009
Posts: 2,128
Likes: 37
From: toronto
Gallado Spyder / AMG C63S / Cayenne
No blow off valve on E55K.
What you hear and feel is the supercharger engaging. As you press the throttle and demand more power the supercharger comes on line and causes a 30-40 hp loss then in a split second the boost makes the engine produce much more power.
All E55K have this characteristic, it is normal.
Over 500 posts on the topic, don't worry every newbe asks same.
What you hear and feel is the supercharger engaging. As you press the throttle and demand more power the supercharger comes on line and causes a 30-40 hp loss then in a split second the boost makes the engine produce much more power.
All E55K have this characteristic, it is normal.
Over 500 posts on the topic, don't worry every newbe asks same.
thank you... try to enjoy it... i really like that sound... it sounds like the beast is really powerful..
