View Poll Results: C63s running out of gas while racing
C63s limp mode after running out of gas
2
100.00%
C63s running out of gas while racing
0
0%
Voters: 2. You may not vote on this poll
C63s c205
Thread Starter
Junior Member
Joined: Apr 2024
Posts: 31
Likes: 3
2020 C63s coupe
C63s c205
Hey guys , last year i was racing an rs7 once and i was low on gas to begin with, long story short we got carried away and my car engine light started flashing and the car shut off/limp mode !
i pulled over to the side , waited about 5mins and i restarted the car , she turned on , and lucky the gas station was right there !
after fill up , engine light turned off after 10kms about!and since then ive had 3 tracks day of tot abuse and all good!
just wondering , any one with knowledge think i damaged anything by running out of gas going at least 200km/hour , or the car detected that and put me into limp mode so i can stop before any damage does happen ! Thanks
i pulled over to the side , waited about 5mins and i restarted the car , she turned on , and lucky the gas station was right there !
after fill up , engine light turned off after 10kms about!and since then ive had 3 tracks day of tot abuse and all good!
just wondering , any one with knowledge think i damaged anything by running out of gas going at least 200km/hour , or the car detected that and put me into limp mode so i can stop before any damage does happen ! Thanks
Out Of Control!!
Joined: Nov 2018
Posts: 11,467
Likes: 5,355
From: San Francisco Bay Area
2019 C63CS
Yes, running the engine at high loads with low fuel pressure can damage the engine by overheating valves and their seat, as well as burning the electric motors in the fuel pumps. Fuel does double duty. Besides combusting it, it also serves to cool things down. From all the parts in the fuel system to the combustion chamber. The fuel partly keeps these things cool. Fuel starvation is not good for the engine and the pumps, so likely it entered limp mode to try to protect itself. You should never let the tank run dry, especially if you are getting on it. You also end up sucking potential debris and sludge from the tank into the engine.
Thread Starter
Junior Member
Joined: Apr 2024
Posts: 31
Likes: 3
2020 C63s coupe
Yes, running the engine at high loads with low fuel pressure can damage the engine by overheating valves and their seat, as well as burning the electric motors in the fuel pumps. Fuel does double duty. Besides combusting it, it also serves to cool things down. From all the parts in the fuel system to the combustion chamber. The fuel partly keeps these things cool. Fuel starvation is not good for the engine and the pumps, so likely it entered limp mode to try to protect itself. You should never let the tank run dry, especially if you are getting on it. You also end up sucking potential debris and sludge from the tank into the engine.
yes i agree 100% with all that ! But do you think any damage did happen ? I mean who really knows i guess
Out Of Control!!
Joined: Nov 2018
Posts: 11,467
Likes: 5,355
From: San Francisco Bay Area
2019 C63CS
Thread Starter
Junior Member
Joined: Apr 2024
Posts: 31
Likes: 3
2020 C63s coupe
MBWorld Fanatic!
Joined: Sep 2016
Posts: 1,723
Likes: 613
From: Australia
⏱️ 700HP Facelift converted C63 S Coupe with Drexler 3.06 plated LSD
It's just a one off and your car is fine you haven't damaged anything don't worry. Next time you're giving it hell just do it with at least a quarter tank 😁
Thread Starter
Junior Member
Joined: Apr 2024
Posts: 31
Likes: 3
2020 C63s coupe
You'll be fine as Superswiss said it raised a CEL/entered limp mode to protect itself and the good thing is once you filled up again you haven't had that issue for almost a year.
It's just a one off and your car is fine you haven't damaged anything don't worry. Next time you're giving it hell just do it with at least a quarter tank 😁
It's just a one off and your car is fine you haven't damaged anything don't worry. Next time you're giving it hell just do it with at least a quarter tank 😁
yes lesson learned forsure! Have done over 80 hard laps on the track since it happened aswell! Cars amazing ! Only thing that didnt hold up were the stock break pads but now i got some Pagid yellows, wish i got the ceramics when i purchased the car
