Problems: limp mode !!
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Joined: May 2011
Posts: 127
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2015 ML63
Problems: limp mode !!
Car went into limp mode and cels came on. I was driving in heavy traffic and then after traffic went away at small acceleration at 3 rpms car went into limp mode and everything possible on the cluster started comin on that is not working or visit workshop. It was little scary because I had my 5 month old son in the backseat. I pulled over removed the ecu with the tune and threw in the second ecu with the stock tune and everything was fine till next day after the cel came on. So I had to dropp of the car at the dealer and a lot of issues popped out. First: pedal sensor, boost sensor and then oil pump needs to be replaced. Everyday they find something new, car has been at the dealer for 3 days. Anyone had similar problems?
Last edited by sebc63; Jul 29, 2013 at 03:41 PM.
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From: THE Orange County, California
2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
Car went into limp mode and cels came on. I was driving in heavy traffic and then after traffic went away at small acceleration at 3 rpms car went into limp mode and everything possible on the cluster started comin on that is not working or visit workshop. It was little scary because I had my 5 month old son in the backseat. I pulled over removed the ecu with the tune and threw in the second ecu with the stock tune and everything was fine till next day after the cel came on. So I had to dropp of the car at the dealer and a lot of issues popped out. First: pedal sensor, boost sensor and then oil pump needs to be replaced. Everyday they find something new, car has been at the dealer for 3 days. Anyone had similar problems?
Thread Starter
Member
Joined: May 2011
Posts: 127
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2015 ML63
Renntech and i did 12k on this tune. Once after i installed one step colder plugs i had misfire in 4 cylinders. That was only problem but I guess the car is designed for 600hp and not 700 so after a while things will brake. So i guess nothing is bulletproof or its just my luck.
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Joined: Jul 2009
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From: SoCal
2013 E63 AMG
Car went into limp mode and cels came on. I was driving in heavy traffic and then after traffic went away at small acceleration at 3 rpms car went into limp mode and everything possible on the cluster started comin on that is not working or visit workshop. It was little scary because I had my 5 month old son in the backseat. I pulled over removed the ecu with the tune and threw in the second ecu with the stock tune and everything was fine till next day after the cel came on. So I had to dropp of the car at the dealer and a lot of issues popped out. First: pedal sensor, boost sensor and then oil pump needs to be replaced. Everyday they find something new, car has been at the dealer for 3 days. Anyone had similar problems?
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Joined: Aug 2005
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From: Southern Cali (Ontario)
limp mode was caused by bad connection with spark plug wires..
When the spark plugs replaced, did you change to new wires too? From the little i know.. you should never reuse those wires.
CEL would come on and dash light would come on..
I would start there..
Thread Starter
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Joined: May 2011
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2015 ML63
Picked up the car 3 days ago. Everything is even better now. The oil pump, pedal, boost sensors were replaced. The car seems responding much better than before. I ve been driving it "like its stolen" last few days and no problems. The dealer said because of the bad oil pump boost sensor were filled with too much oil and etc... and that was causing a chain reaction of different issues. I hope for no more issues..
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Joined: May 2005
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From: Naples FL
2021 Porsche TTS
Good news.
I am about to get the car tuned and that scares a bit. The intermediate tune is not that much different hp wise so I am torn which one to get. I would think that if there is a shop that knows what it's doing, it's Renntech. You are paying the price but hopefully the peace of mind as well.
I am about to get the car tuned and that scares a bit. The intermediate tune is not that much different hp wise so I am torn which one to get. I would think that if there is a shop that knows what it's doing, it's Renntech. You are paying the price but hopefully the peace of mind as well.
MBWorld Fanatic!
Joined: Jul 2009
Posts: 1,196
Likes: 1
From: SoCal
2013 E63 AMG
Picked up the car 3 days ago. Everything is even better now. The oil pump, pedal, boost sensors were replaced. The car seems responding much better than before. I ve been driving it "like its stolen" last few days and no problems. The dealer said because of the bad oil pump boost sensor were filled with too much oil and etc... and that was causing a chain reaction of different issues. I hope for no more issues..
MBWorld Fanatic!
Joined: Jul 2009
Posts: 1,196
Likes: 1
From: SoCal
2013 E63 AMG
Good news.
I am about to get the car tuned and that scares a bit. The intermediate tune is not that much different hp wise so I am torn which one to get. I would think that if there is a shop that knows what it's doing, it's Renntech. You are paying the price but hopefully the peace of mind as well.
I am about to get the car tuned and that scares a bit. The intermediate tune is not that much different hp wise so I am torn which one to get. I would think that if there is a shop that knows what it's doing, it's Renntech. You are paying the price but hopefully the peace of mind as well.
