Check engine light
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Joined: May 2021
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RC F
Check engine light
Just took delivery of the G63 2 days ago, wife thought she could drive from house to Costco to get gas, ran out right before she could turn into the gas station. I had to bring the portable gas can to fill it with a gallon. Wife told me there was a check engine light that came on right before the engine dies now, is that just the normal check engine light like when you didn’t screw ln the gas cap tight enough and will clear by itself in a day or 2? Thanks guys
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From: Colorado
G550
Just took delivery of the G63 2 days ago, wife thought she could drive from house to Costco to get gas, ran out right before she could turn into the gas station. I had to bring the portable gas can to fill it with a gallon. Wife told me there was a check engine light that came on right before the engine dies now, is that just the normal check engine light like when you didn’t screw ln the gas cap tight enough and will clear by itself in a day or 2? Thanks guys
Thread Starter
Junior Member
Joined: May 2021
Posts: 34
Likes: 2
RC F
First of all, didn't the dealer include a full tank of gas at delivery, or did you manage to run it dry in 48 hours? An empty fuel line would likely have thrown several OBD2 codes, such as a loss of fuel pressure, fuel pump failure, etc.. Did the CEL extinguish once the tank was filled? There might be a few residual codes stored you could still scan for to satisfy your curiosity. Swing by an auto store and they'll let you borrow an OBD scanner at no charge.
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Joined: Oct 2019
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From: Colorado
G550
Welcome to the world of G Wagen fuel economy! Can't say whether it will clear itself -- good time to buy even an inexpensive scanner to reset things like a loose gas cap.
Thread Starter
Junior Member
Joined: May 2021
Posts: 34
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RC F
MBWorld Fanatic!
Joined: Oct 2019
Posts: 5,152
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From: Colorado
G550
This is what I find most annoying about current "high tech" automobiles. Manufacturers could easily integrate the functionality of a $100 OBD scanner (at no incremental cost -- it's only software) into the infotainment system such that the actual codes are displayed and CEL resets could be made. Instead, the only information you get is a stupid "idiot light". Meanwhile, the Chinese are shipping millions of OBD scanners each year to the U.S. and everywhere else. My 1995 Wrangler was made the year prior to the OBD connector mandate. It has a check engine light, and there's a sequence involving the ignition key that puts the CEL into a flashing mode that indicates an error code, and I have an error code lookup directory. So in 26 years, auto diagnostics have taken a big step backward for owners.
Your car should be OK to drive, but I'd make my next stop an auto store to borrow a scanner and reset the CEL.
Your car should be OK to drive, but I'd make my next stop an auto store to borrow a scanner and reset the CEL.
Thread Starter
Junior Member
Joined: May 2021
Posts: 34
Likes: 2
RC F
This is what I find most annoying about current "high tech" automobiles. Manufacturers could easily integrate the functionality of a $100 OBD scanner (at no incremental cost -- it's only software) into the infotainment system such that the actual codes are displayed and CEL resets could be made. Instead, the only information you get is a stupid "idiot light". Meanwhile, the Chinese are shipping millions of OBD scanners each year to the U.S. and everywhere else. My 1995 Wrangler was made the year prior to the OBD connector mandate. It has a check engine light, and there's a sequence involving the ignition key that puts the CEL into a flashing mode that indicates an error code, and I have an error code lookup directory. So in 26 years, auto diagnostics have taken a big step backward for owners.
Your car should be OK to drive, but I'd make my next stop an auto store to borrow a scanner and reset the CEL.
Your car should be OK to drive, but I'd make my next stop an auto store to borrow a scanner and reset the CEL.
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Thread Starter
Junior Member
Joined: May 2021
Posts: 34
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RC F
Update
So just ran the obd scanner and got a p0300 which is misfire, along with other cylinder misfires. I’m guessing it’s from not having gas during that time? Cleared it and the CEL went away. Im going to take it to the dealer Monday regardless but should I be worried driving this thing until then?
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MBWorld Fanatic!
Joined: Oct 2019
Posts: 5,152
Likes: 1,766
From: Colorado
G550
So just ran the obd scanner and got a p0300 which is misfire, along with other cylinder misfires. I’m guessing it’s from not having gas during that time? Cleared it and the CEL went away. Im going to take it to the dealer Monday regardless but should I be worried driving this thing until then?
