2007 S65 won't go above 3,000 RPM
07-07-2020, 12:13 PM
#1
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2007 S65
2007 S65 won't go above 3,000 RPM
All,
I have a 2007 S65 with about 118k miles. I noticed that when I stepped on the throttle it has plenty of power up until mid range, nothing after. I took it home and was revving it a little in the driveway and noticed that I could not get the engine to go over 3,000 RPM. I can put my foot to the floor and 3k is the max. No Check Engine Light. I have a BlueDriver OBD scan tool and pulled the codes. The only codes had to do with low voltage to a seat control system and a TPM code. I would have expected misfire codes based on my research of common issues with the V12, i.e. coil packs or VT. I don't know when the fuel filter was last changed so I will be doing that regardless. Anyone else run into something similar?
I have a 2007 S65 with about 118k miles. I noticed that when I stepped on the throttle it has plenty of power up until mid range, nothing after. I took it home and was revving it a little in the driveway and noticed that I could not get the engine to go over 3,000 RPM. I can put my foot to the floor and 3k is the max. No Check Engine Light. I have a BlueDriver OBD scan tool and pulled the codes. The only codes had to do with low voltage to a seat control system and a TPM code. I would have expected misfire codes based on my research of common issues with the V12, i.e. coil packs or VT. I don't know when the fuel filter was last changed so I will be doing that regardless. Anyone else run into something similar?
07-07-2020, 02:33 PM
#2
All,
I have a 2007 S65 with about 118k miles. I noticed that when I stepped on the throttle it has plenty of power up until mid range, nothing after. I took it home and was revving it a little in the driveway and noticed that I could not get the engine to go over 3,000 RPM. I can put my foot to the floor and 3k is the max. No Check Engine Light. I have a BlueDriver OBD scan tool and pulled the codes. The only codes had to do with low voltage to a seat control system and a TPM code. I would have expected misfire codes based on my research of common issues with the V12, i.e. coil packs or VT. I don't know when the fuel filter was last changed so I will be doing that regardless. Anyone else run into something similar?
I have a 2007 S65 with about 118k miles. I noticed that when I stepped on the throttle it has plenty of power up until mid range, nothing after. I took it home and was revving it a little in the driveway and noticed that I could not get the engine to go over 3,000 RPM. I can put my foot to the floor and 3k is the max. No Check Engine Light. I have a BlueDriver OBD scan tool and pulled the codes. The only codes had to do with low voltage to a seat control system and a TPM code. I would have expected misfire codes based on my research of common issues with the V12, i.e. coil packs or VT. I don't know when the fuel filter was last changed so I will be doing that regardless. Anyone else run into something similar?
must be something wrong electronically that make the car think you are not in gears
07-07-2020, 04:13 PM
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Could have just been a coincidence so I will keep an eye on it.
07-07-2020, 04:38 PM
#4
Thank you. I didn't realize there was a limit like that. I went ahead and cleared all codes with BlueDriver (not that any were particularly relevant) and took it for a ride. Night and day difference. Scared the crap out of my wife when it broke loose upshifting Could have just been a coincidence so I will keep an eye on it.
Could have just been a coincidence so I will keep an eye on it.could be a faulty communication with shifter then triggered the rev limiter
maybe something you'll never see again
don't get worried in advance
07-09-2020, 12:21 AM
#5
Junior Member
Ive had the same issue before. Twice after hard acceleration. Seems like theres a safety built in. The first time i was worried about coil packs, VT and open waste-gates. Second time I pulled over on the highway and shut the car off and turned it back on. Drove normal instantly. Im not sure if I saw it in this forum or another but i recall someone asking if they could turn off or delete that feature. Novice Mercedes owner so take this diagnosis with a grain of salt.
10-12-2020, 08:21 PM
#6
MBWorld Fanatic!
Thank you. I didn't realize there was a limit like that. I went ahead and cleared all codes with BlueDriver (not that any were particularly relevant) and took it for a ride. Night and day difference. Scared the crap out of my wife when it broke loose upshifting Could have just been a coincidence so I will keep an eye on it.
Could have just been a coincidence so I will keep an eye on it.
