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Old Jun 12, 2022 | 05:44 AM
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Majedbasim's Avatar
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C63S w205 16”
Power loss

Hi guys i feel like alot of power loss i dont have the screen shows hp and tq ,I bought the car with Eurocharged stage 2 but i thing its slower than stock no issues no check engine light everything good i saw that sometimes our car have limp mood, how can i make sure that my car in limp mood and how can i fix it without dealer
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Old Jun 12, 2022 | 07:36 AM
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2018 C63s
Originally Posted by Majedbasim
Hi guys i feel like alot of power loss i dont have the screen shows hp and tq ,I bought the car with Eurocharged stage 2 but i thing its slower than stock no issues no check engine light everything good i saw that sometimes our car have limp mood, how can i make sure that my car in limp mood and how can i fix it without dealer
*****You need a scan tool to get some data out of the car and see if there are any stored codes, or if the car is in limp mode, or experiencing abnormal readings. Live scan can reveal engine knock and spark retard, etc..

Pulling a spark plug or two and analyzing insulator data can reveal a lot of issues internally as well, even without a scan tool. These cars are complex, and power loss can happen for many many reasons.

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Old Jun 28, 2022 | 02:37 PM
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C63S w205 16”

I’ve been checked many times there’s no fault code only sunroof code !!!
330 hp
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Old Jun 28, 2022 | 10:24 PM
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****Wow. That's low. How hot is the car running? Oil temp?, water temp? trans temp? Have you checked to make sure the wastegates aren't stuck open and bleeding off boost?

These cars are complicated. Lots of things can cause power loss but 330hp is really really low and something is wrong. If you have IR Thermometer, shine it on the turbos and see if there is a big difference, also check the heat exchangers and intercoolers. They should NOT be that much different temp wise from each other. If they are, something is wrong on the bank that is reading hotter (mebbe a LOT hotter) . Also check the turbo inlet pipes and see if the hoses are cracked or broken and leaking. It happens and will bleed off a LOT of power.

Hope it is an easy fix!





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Old Jun 28, 2022 | 10:39 PM
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C63S w205 16”
All temperatures are normal but the datalog shows that problems with gas bump or mybe injectors
and the boost is almost zero at high rpm, about 1.7bar
but i see that the boost screen when i accelerate run good with no lag !
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