Engine Warning Light
Thread Starter
Member
Joined: Jun 2025
Posts: 86
Likes: 20
From: SoCal, USA
C300
Engine Warning Light
I've had issues with my 2024 C300 engine warning light coming on. It's now happened three times. It's not the gas cap. It came on again yesterday and I took it to the dealership while it was still on (it will go off on its own if I start and stop the engine 3-4 times- usually). The service people finally figured it out. My car system receives over-the-air updates while I'm driving (not all do, apparently), and when it does the light comes on. They simply reset the system and it goes off. Until the next update. It means more work for them, but it's warranty work so no money from me. Aggravating, though.
Just a head's-up to anyone who may be having this problem.
Just a head's-up to anyone who may be having this problem.
MBWorld God!
Joined: Dec 2019
Posts: 32,217
Likes: 6,275
I've had issues with my 2024 C300 engine warning light coming on. It's now happened three times. It's not the gas cap. It came on again yesterday and I took it to the dealership while it was still on (it will go off on its own if I start and stop the engine 3-4 times- usually). The service people finally figured it out. My car system receives over-the-air updates while I'm driving (not all do, apparently), and when it does the light comes on. They simply reset the system and it goes off. Until the next update. It means more work for them, but it's warranty work so no money from me. Aggravating, though.
Just a head's-up to anyone who may be having this problem.
Just a head's-up to anyone who may be having this problem.
