Wife's C63 Issue
Thread Starter
Super Member
Joined: Jan 2012
Posts: 564
Likes: 1
From: Australia
AMG
Wife's C63 Issue
I've been driving my wifes C63 for the past week as we've swapped cars for a little while.
Her car used to pop and crackle on slow downshifts from 3rd to 2nd gear in M mode at approx 40km/h.
I've noticed that's disappeared now. And just gurgles.
Had the car checked for air leaks (exhaust) just in case it's losing back pressure but they only found a tiny hole and it was rectified. It's still not crackling and popping like it used to.
Even in C and S mode it used to crackle, pop etc when it automatically downshifted through the gears especially at low speed from 3rd to 2nd.
Now it used to pop and crackle for a good 6+ months and has just stopped over the past few days.
Could it be the fuel?
I know it sounds stupid, but any insight would be good, as i'm worried it may be leading to something more serious.
Her car used to pop and crackle on slow downshifts from 3rd to 2nd gear in M mode at approx 40km/h.
I've noticed that's disappeared now. And just gurgles.
Had the car checked for air leaks (exhaust) just in case it's losing back pressure but they only found a tiny hole and it was rectified. It's still not crackling and popping like it used to.
Even in C and S mode it used to crackle, pop etc when it automatically downshifted through the gears especially at low speed from 3rd to 2nd.
Now it used to pop and crackle for a good 6+ months and has just stopped over the past few days.
Could it be the fuel?
I know it sounds stupid, but any insight would be good, as i'm worried it may be leading to something more serious.
Senior Member
Joined: Feb 2012
Posts: 322
Likes: 1
From: Nigeria
2012 C63 Coupe P31 CF Trim - Eurocharged V7, 2012 RangeRover Autobiography, 2017 GLS 63 Amg
Do this
1. Turn the ignition key to the "on" position which is just before you crank the engine to start.
2. Press the accelerator to the floor and hold for 5 seconds.
3. Then turn the key to the off position but do not remove the key, then release the accelerator.
4. Wait at least 5 minutes, the ECU is then reset.
The ECU rest procedure only erases the adaptive transmission and throttle settings. It does not erase any of the fuel, timing or other programming.
1. Turn the ignition key to the "on" position which is just before you crank the engine to start.
2. Press the accelerator to the floor and hold for 5 seconds.
3. Then turn the key to the off position but do not remove the key, then release the accelerator.
4. Wait at least 5 minutes, the ECU is then reset.
The ECU rest procedure only erases the adaptive transmission and throttle settings. It does not erase any of the fuel, timing or other programming.
Senior Member
Joined: Feb 2012
Posts: 322
Likes: 1
From: Nigeria
2012 C63 Coupe P31 CF Trim - Eurocharged V7, 2012 RangeRover Autobiography, 2017 GLS 63 Amg
mine has a eurocharged v5 tune, i do this procedure every month, just for the fun of it, since the car is parked most times,and my tune is perfect, mind u, i am a million miles away incase the tune is messed up, so ur good to go.........
Trending Topics
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Senior Member
Joined: Feb 2012
Posts: 322
Likes: 1
From: Nigeria
2012 C63 Coupe P31 CF Trim - Eurocharged V7, 2012 RangeRover Autobiography, 2017 GLS 63 Amg
well am no magician, but if i follow what u said earlier, one its wifeys car, she isnt going to be driving in S or S+ always, i reckon maybe C all the time, even if not, she would baby the car more and not open it up, eventually the car will start behaving like a grannys car, because the TCU will be adapted to the slow driving, and u know the AMG needs a floggin no& then, so it requires opening it up, which the TCU reset will achieve , then you can flog it and see how it responds. I am sure the car is seeing my chats and cant wait for the morning to bare its teeth........ enjoy in good health
MBWorld Fanatic!
Joined: Jun 2011
Posts: 1,911
Likes: 4
2012 C63 AMG Black Series
Do this
1. Turn the ignition key to the "on" position which is just before you crank the engine to start.
2. Press the accelerator to the floor and hold for 5 seconds.
3. Then turn the key to the off position but do not remove the key, then release the accelerator.
4. Wait at least 5 minutes, the ECU is then reset.
The ECU rest procedure only erases the adaptive transmission and throttle settings. It does not erase any of the fuel, timing or other programming.
1. Turn the ignition key to the "on" position which is just before you crank the engine to start.
2. Press the accelerator to the floor and hold for 5 seconds.
3. Then turn the key to the off position but do not remove the key, then release the accelerator.
4. Wait at least 5 minutes, the ECU is then reset.
The ECU rest procedure only erases the adaptive transmission and throttle settings. It does not erase any of the fuel, timing or other programming.
MBWorld Fanatic!
Joined: Aug 2009
Posts: 2,899
Likes: 93
C63 AMG
OP, if you're in the "low-aggression" adaptation mode, a reset (if in fact it works - it's never been authoritatively verified as a "real" procedure here, ever) will not get you where you want to go. I do the following (7G trans), and this procedure works very quickly and reliably.
- Put your car in D3.
- Using heavy throttle, run past 5k through the three gears.
- Brake with a heavy foot.
- Repeat, perhaps four or five times.
- After that, test your adaptations by hard braking as if you were bedding pads, say from 70-10 mph.
- You should feel two quick downshifts accompanied by backfires and burbling.
- Put your car in D3.
- Using heavy throttle, run past 5k through the three gears.
- Brake with a heavy foot.
- Repeat, perhaps four or five times.
- After that, test your adaptations by hard braking as if you were bedding pads, say from 70-10 mph.
- You should feel two quick downshifts accompanied by backfires and burbling.
Thread Starter
Super Member
Joined: Jan 2012
Posts: 564
Likes: 1
From: Australia
AMG
OP, if you're in the "low-aggression" adaptation mode, a reset (if in fact it works - it's never been authoritatively verified as a "real" procedure here, ever) will not get you where you want to go. I do the following (7G trans), and this procedure works very quickly and reliably.
- Put your car in D3.
- Using heavy throttle, run past 5k through the three gears.
- Brake with a heavy foot.
- Repeat, perhaps four or five times.
- After that, test your adaptations by hard braking as if you were bedding pads, say from 70-10 mph.
- You should feel two quick downshifts accompanied by backfires and burbling.
- Put your car in D3.
- Using heavy throttle, run past 5k through the three gears.
- Brake with a heavy foot.
- Repeat, perhaps four or five times.
- After that, test your adaptations by hard braking as if you were bedding pads, say from 70-10 mph.
- You should feel two quick downshifts accompanied by backfires and burbling.
All i want is to be able to restore the crackling and popping that's seemed to have vanished.
Last edited by RawBenz; Jan 13, 2015 at 09:58 PM.
MBWorld Fanatic!
Joined: Oct 2007
Posts: 2,296
Likes: 380
From: Texas
10 C six trizzle
OP, if you're in the "low-aggression" adaptation mode, a reset (if in fact it works - it's never been authoritatively verified as a "real" procedure here, ever) will not get you where you want to go. I do the following (7G trans), and this procedure works very quickly and reliably.
- Put your car in D3.
- Using heavy throttle, run past 5k through the three gears.
- Brake with a heavy foot.
- Repeat, perhaps four or five times.
- After that, test your adaptations by hard braking as if you were bedding pads, say from 70-10 mph.
- You should feel two quick downshifts accompanied by backfires and burbling.
- Put your car in D3.
- Using heavy throttle, run past 5k through the three gears.
- Brake with a heavy foot.
- Repeat, perhaps four or five times.
- After that, test your adaptations by hard braking as if you were bedding pads, say from 70-10 mph.
- You should feel two quick downshifts accompanied by backfires and burbling.
MBWorld Fanatic!
Joined: Aug 2009
Posts: 2,899
Likes: 93
C63 AMG
^ Sorry, S3. I use a hill that is perfect for this exercise. Two mostly full-throttle blasts with 8/10's braking in between gets me to the top. Just brake when you're finished accelerating, don't waste time coasting in-between. On the flat portion at the top I'm usually full-throttle for 3-4 secs, then back off for few, then fully on, off, on, like that. You could do that in M2. The important thing is to be really ON the throttle while you're doing this...the adaptations then take place quickly, only a couple of minutes total and you're done. Your closing braking run should yield two very aggressive downshifts that sound incredible (I'm talking headers, fully-catted and tune for mine).
Last edited by bhamg; Jan 14, 2015 at 03:29 AM.
Thread Starter
Super Member
Joined: Jan 2012
Posts: 564
Likes: 1
From: Australia
AMG
Ok so let me get this straight.
You engage S mode.
After driving and the car is in 3rd gear (S3) flatten the throttle.... Go through S3, S4, S5 and change at redline or above 5k.
Brake, then repeat about 4-5x.
Then test it by braking hard from a high speed to low speed and it should drop down two gears?
Do i need to do anything with the key, reset etc?
Or do i just simply go for a drive and do this?
You engage S mode.
After driving and the car is in 3rd gear (S3) flatten the throttle.... Go through S3, S4, S5 and change at redline or above 5k.
Brake, then repeat about 4-5x.
Then test it by braking hard from a high speed to low speed and it should drop down two gears?
Do i need to do anything with the key, reset etc?
Or do i just simply go for a drive and do this?
MBWorld Fanatic!
Joined: Aug 2009
Posts: 2,899
Likes: 93
C63 AMG
Ok so let me get this straight.
You engage S mode.
After driving and the car is in 3rd gear (S3) flatten the throttle.... Go through S3, S4, S5 and change at redline or above 5k.
Brake, then repeat about 4-5x.
Then test it by braking hard from a high speed to low speed and it should drop down two gears?
Do i need to do anything with the key, reset etc?
Or do i just simply go for a drive and do this?
You engage S mode.
After driving and the car is in 3rd gear (S3) flatten the throttle.... Go through S3, S4, S5 and change at redline or above 5k.
Brake, then repeat about 4-5x.
Then test it by braking hard from a high speed to low speed and it should drop down two gears?
Do i need to do anything with the key, reset etc?
Or do i just simply go for a drive and do this?
Last edited by bhamg; Jan 14, 2015 at 04:25 AM.
Thread Starter
Super Member
Joined: Jan 2012
Posts: 564
Likes: 1
From: Australia
AMG
Ok so I've tried this and its not working. I'm confused.
I drive in M mode most of the time and so does my wife. I tried it a few times.
Is the car meant to gear down on its own in M mode when you're braking?
I drive in M mode most of the time and so does my wife. I tried it a few times.
Is the car meant to gear down on its own in M mode when you're braking?
