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Turbo problem at 10,000 miles

 
Old 10-01-2017, 10:11 PM
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Turbo problem at 10,000 miles

Hey guys, so recently just bought my 2017 c43. Loved, couldn't be anymore happy with it, well like everyone maybe I wanted a little more out of it. So I got in touch with the guys at AMR to have it tuned up. Very excitied about this so they strap my car to the Dyno an do base runs he's not impressed with the numbers, so we press forward with the tune, do pulls after an still wasn't impressed with numbers. He seems to think I'm not getting boost to my turbos an need to bring it back to the dealer. Giving me some suggestions. Anyone having problems with there turbos? Any other tips besides these.
1) hard reset of the ECU
2) Check intercooler piping as well as intercooler itself
3) Check electronic boost control solenoid (may be defective)
4) Vehicle did have a P0601A code stored in the ECU (resseting it did not fix the problem)
5) Check end tanks on intercooler core to ensure not leaking or separated from core
6) Check turbochargers themselves as well as wastegate actuators
Thanks for all input.
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Old 10-01-2017, 10:32 PM
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Originally Posted by morehartd View Post
Hey guys, so recently just bought my 2017 c43. Loved, couldn't be anymore happy with it, well like everyone maybe I wanted a little more out of it. So I got in touch with the guys at AMR to have it tuned up. Very excitied about this so they strap my car to the Dyno an do base runs he's not impressed with the numbers, so we press forward with the tune, do pulls after an still wasn't impressed with numbers. He seems to think I'm not getting boost to my turbos an need to bring it back to the dealer. Giving me some suggestions. Anyone having problems with there turbos? Any other tips besides these.
1) hard reset of the ECU
2) Check intercooler piping as well as intercooler itself
3) Check electronic boost control solenoid (may be defective)
4) Vehicle did have a P0601A code stored in the ECU (resseting it did not fix the problem)
5) Check end tanks on intercooler core to ensure not leaking or separated from core
6) Check turbochargers themselves as well as wastegate actuators
Thanks for all input.


What are your baseline dyno numbers? I’m sure AMR would provide you before and after numbers.
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Old 10-02-2017, 12:33 AM
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I forget, is there a way to check boost pressure within the ECU and pull logs of it? I'm guessing no as if there was, the AMR guys would have done this?
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Old 10-02-2017, 09:58 AM
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Originally Posted by morehartd View Post
Hey guys, so recently just bought my 2017 c43. Loved, couldn't be anymore happy with it, well like everyone maybe I wanted a little more out of it. So I got in touch with the guys at AMR to have it tuned up. Very excitied about this so they strap my car to the Dyno an do base runs he's not impressed with the numbers, so we press forward with the tune, do pulls after an still wasn't impressed with numbers. He seems to think I'm not getting boost to my turbos an need to bring it back to the dealer. Giving me some suggestions. Anyone having problems with there turbos? Any other tips besides these.
1) hard reset of the ECU
2) Check intercooler piping as well as intercooler itself
3) Check electronic boost control solenoid (may be defective)
4) Vehicle did have a P0601A code stored in the ECU (resseting it did not fix the problem)
5) Check end tanks on intercooler core to ensure not leaking or separated from core
6) Check turbochargers themselves as well as wastegate actuators
Thanks for all input.
Check the lower intercooler piping. It is hard to get to, you will have to remove all of the panels underneath, but definitely have a look.

The other thing, someone made a post about a faulty wastegate actuator a while back. I would check that too.

Honestly, to save time and money why not just take it back to the dealer?
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Old 10-02-2017, 12:31 PM
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Originally Posted by morehartd View Post
Hey guys, so recently just bought my 2017 c43. Loved, couldn't be anymore happy with it, well like everyone maybe I wanted a little more out of it. So I got in touch with the guys at AMR to have it tuned up. Very excitied about this so they strap my car to the Dyno an do base runs he's not impressed with the numbers, so we press forward with the tune, do pulls after an still wasn't impressed with numbers. He seems to think I'm not getting boost to my turbos an need to bring it back to the dealer. Giving me some suggestions. Anyone having problems with there turbos? Any other tips besides these.
1) hard reset of the ECU
2) Check intercooler piping as well as intercooler itself
3) Check electronic boost control solenoid (may be defective)
4) Vehicle did have a P0601A code stored in the ECU (resseting it did not fix the problem)
5) Check end tanks on intercooler core to ensure not leaking or separated from core
6) Check turbochargers themselves as well as wastegate actuators
Thanks for all input.
You are not going to get much more accurate than that list of things you have to check. I would say just take it to the dealer. They can go through that list for you and save you the headache. I can tell you for sure that I would not even attempt to start taking my C43 apart lol let the dealer take on that task haha
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Old 10-02-2017, 04:04 PM
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You can get the boost reading via the OBD2 port with a generic scan tool. Look the MAP PID in the live data section.
If the reading is abnormally high you will have to subtract the atmospheric pressure value from the reading to get the boost reading.
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Old 07-12-2018, 02:18 PM
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did you ever figure out what happened? I can hear my turbos very loud and its getting louder and i feel like the power is not all there. i am suspecting a leak or something along those lines.

i am stock currently.

Last edited by Star4life; 07-12-2018 at 02:23 PM.
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Old 07-12-2018, 02:58 PM
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Originally Posted by Star4life View Post
did you ever figure out what happened? I can hear my turbos very loud and its getting louder and i feel like the power is not all there. i am suspecting a leak or something along those lines.

i am stock currently.
His problem had to do with the tune. Not similar to yours. Did you take the unit out? And it is still happening? Did you check all the pipes to and from the intercooler?
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Old 07-12-2018, 03:16 PM
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Originally Posted by munis View Post
His problem had to do with the tune. Not similar to yours. Did you take the unit out? And it is still happening? Did you check all the pipes to and from the intercooler?
it sounds like his problem was even before tune. my car is stock right now and sounds like it has boost leak and blow off valve lol.


i did not check anything. most likely will just take to dealer and have the hash it out as well as a few other things.
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Old 07-12-2018, 03:29 PM
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Or you can get the JB4, which will save you money, make more power, and show you live boost readouts.
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Old 07-12-2018, 03:48 PM
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Originally Posted by Star4life View Post
it sounds like his problem was even before tune. my car is stock right now and sounds like it has boost leak and blow off valve lol.


i did not check anything. most likely will just take to dealer and have the hash it out as well as a few other things.
Yeah man. Let them sort it out. Car is still under warranty. Sounds like a boost leak to me.
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Old 07-12-2018, 03:51 PM
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Originally Posted by Star4life View Post
it sounds like his problem was even before tune. my car is stock right now and sounds like it has boost leak and blow off valve lol.

i did not check anything. most likely will just take to dealer and have the hash it out as well as a few other things.
You are correct. His problem was there before the tune. The gentlemen above just likes to blame limp mode or tunes for all problems. (example: https://mbworld.org/forums/c450-c43-...t-working.html)

If you click on the example link I referenced, the OP was having a boost issue, I commented for him to check the lower boost tubes under the front of the vehicle as well as the coupler that connects the throttle body to the cooler and sure enough, the issue/leak was found.
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Old 07-12-2018, 03:52 PM
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What an idiot, seriously!

Last edited by munis; 07-12-2018 at 04:19 PM.
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Old 07-12-2018, 03:57 PM
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Your car is not going into any limp mode. So it is just a simple boost leak. And you already checked the piping didn't you? So it can be blow off valve.

It would be nice if idiots did not take all statements out of context.
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Old 07-12-2018, 04:08 PM
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Originally Posted by munis View Post
What an idiot.
Because I am advising the OP on how to search for a leak?

It would also help if you stop editing your responses and changing your comments.


--------------------------------------------------------------------------------------------------------------------------------

Your version of helping:
Originally Posted by munis View Post
His problem had to do with the tune. Not similar to yours.

My version of helping:
Originally Posted by DIVINE AMG View Post
You are correct. His problem was there before the tune. The gentlemen above just likes to blame limp mode or tunes for all problems. (example: https://mbworld.org/forums/c450-c43-...t-working.html)

If you click on the example link I referenced, the OP was having a boost issue, I commented for him to check the lower boost tubes under the front of the vehicle as well as the coupler that connects the throttle body to the cooler and sure enough, the issue/leak was found.





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Old 07-12-2018, 04:13 PM
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A single symptom can be explained by multiple issues. A soft limp is one of them. And it is diagnosed very easily by reading the data from the AMG screen. I know why you are here though. But sadly for you it is well beyond the point of repair. Back to tuning boxer engines.
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Old 07-12-2018, 04:15 PM
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No one is stopping anyone from helping. I tried to help as well, until an idiot started referring to me first. Just sod off. And stop cutting half of my post to prove your point.

Last edited by munis; 07-12-2018 at 04:20 PM.
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Old 07-12-2018, 05:04 PM
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I just don't understand why everyone tries to diagnose the problem or fix it themselves, You have warranty, take advantage of it. Everyone having mechanical issues resorts to the forums for help. The dealer will fix everything. Simple as that. It's better if the dealership logs your problems because then you might be able to settle for a lemon law, and get all your $ back.
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Old 07-12-2018, 05:05 PM
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Originally Posted by C43Ayemgee View Post
I just don't understand why everyone tries to diagnose the problem or fix it themselves, You have warranty, take advantage of it. Everyone having mechanical issues resorts to the forums for help. The dealer will fix everything. Simple as that. It's better if the dealership logs your problems because then you might be able to settle for a lemon law, and get all your $ back.
Agreed. Specially if you do not have an ECU tune. No problem taking it to the dealership. That is what warranty is for.
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Old 07-13-2018, 12:14 PM
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its a hassle to go to dealer. just want to gauge if im replacing a turbo or a hose clamp. we dont have lemon law in michigan i dont think nor would it apply to me as i technically bought mine used with 300 miles on it. dont ask lol. the deal was insane someone lost big.


anyway, ill check the piping as it seems to be getting louder. if its too hard to find, ill drive over to dealer.
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Old 07-13-2018, 12:45 PM
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Originally Posted by morehartd View Post
Hey guys, so recently just bought my 2017 c43. Loved, couldn't be anymore happy with it, well like everyone maybe I wanted a little more out of it. So I got in touch with the guys at AMR to have it tuned up. Very excitied about this so they strap my car to the Dyno an do base runs he's not impressed with the numbers, so we press forward with the tune, do pulls after an still wasn't impressed with numbers. He seems to think I'm not getting boost to my turbos an need to bring it back to the dealer. Giving me some suggestions. Anyone having problems with there turbos? Any other tips besides these.
1) hard reset of the ECU
2) Check intercooler piping as well as intercooler itself
3) Check electronic boost control solenoid (may be defective)
4) Vehicle did have a P0601A code stored in the ECU (resseting it did not fix the problem)
5) Check end tanks on intercooler core to ensure not leaking or separated from core
6) Check turbochargers themselves as well as wastegate actuators
Thanks for all input.
LOL, since they had an issue with the stock numbers why would would they still proceed with adding the tune to the car? They first should of told you to go back to the dealer and have this checked out. Could of caused more damage to your engine.

OP i hope all is well with your car
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Old 07-13-2018, 02:21 PM
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Originally Posted by ShazV6 View Post
LOL, since they had an issue with the stock numbers why would would they still proceed with adding the tune to the car? They first should of told you to go back to the dealer and have this checked out. Could of caused more damage to your engine.

OP i hope all is well with your car
Not to mention they cracked open the ECU. Now MB might tell u “ Cars flagged for being tuned, no warranty turbo related”
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Old 07-13-2018, 03:27 PM
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Originally Posted by morehartd View Post
Hey guys, so recently just bought my 2017 c43. Loved, couldn't be anymore happy with it, well like everyone maybe I wanted a little more out of it. So I got in touch with the guys at AMR to have it tuned up. Very excitied about this so they strap my car to the Dyno an do base runs he's not impressed with the numbers, so we press forward with the tune, do pulls after an still wasn't impressed with numbers. He seems to think I'm not getting boost to my turbos an need to bring it back to the dealer. Giving me some suggestions. Anyone having problems with there turbos? Any other tips besides these.
1) hard reset of the ECU
2) Check intercooler piping as well as intercooler itself
3) Check electronic boost control solenoid (may be defective)
4) Vehicle did have a P0601A code stored in the ECU (resseting it did not fix the problem)
5) Check end tanks on intercooler core to ensure not leaking or separated from core
6) Check turbochargers themselves as well as wastegate actuators
Thanks for all input.

Are you saying that the car was underperforming while stock but you proceeded with the tune anyway?
If so this was a big mistake.

You should have sorted the issue with the stock settings under warranty before applying a tune. A tune isn't going to fix any issues with a vehicle. It's just has the potential to wring out more performance. If the baseline is below spec then there is less available power for any tune to exploit. Additionally, adding a tune to a vehicle that may have a mechanical issue is adding more stress to a malfunctioning system while also potentially making diagnosis of the underlying problem more difficult.

There is a good chance that MB will discover that your ECU has been flashed and will attempt to void your warranty and claim that any defect present is resulting from the tune. The water has just been effectively muddied.

I'm very surprised that a reputable tuner would recommend proceeding with the tune after verifying that the car's baseline is below factory spec. A good tuner would have asked you to sort the potential underlying issue with MB 1st and would have provided you the dino charts to support your case with MB service. Only after getting any issues corrected should they have recommended proceeding with the tune.

Good luck, you're going to need it.
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Old 07-13-2018, 10:39 PM
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Originally Posted by C43Ayemgee View Post
I just don't understand why everyone tries to diagnose the problem or fix it themselves.
^ This. One thousand times over, THIS!

And not only that, but this guy was at AMR (Though I've never been there nor do I completely understand how capable their employees/facilities are, one would assume they should be able to diagnose an issue as simple as low boost output in less than 15 minutes...but who knows, maybe not.

I am baffled at how many threads like these are created every week. Sure, a trip to the dealer for service isn't the most convenient or pleasant of experiences, warranty or not, so you should obviously take a quick look under the hood and see if you can see or hear anything out of place, as sometimes it can be a quick and easy fix. But why in the world do people come here looking for advice and help when their car is under full warranty?
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Old 07-13-2018, 10:43 PM
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And one last thing - I know that this thread was from way back and all, but this still applies. WHAT THE HELL WAS AMR THINKING? They had a car which was obviously underperforming due to a completely unknown issue, and instead of advising the owner to immediately take it to the dealer for service, they thought it was a good idea to flash the ECU and hope that would fix it? Seriously?? The owner should have known that was a stupid idea, but AMR DEFINITELY should have known better. That is some questionable practices, right there!


EDIT: I finished reading through the rest of the replies and looks like others noticed this already

Last edited by sean1.8t; 07-13-2018 at 10:46 PM.
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