Greetings! I have a 2016 Mercedes Benz GLC300 (my first Benz), automatic, RWD, 89,000miles driven, car purchased brand-new. Yesterday I noticed the dreaded Check Engine light. I just had the rear brakes & rear rotors replaced on this car several weeks ago. Everything else on the car seems ok. I immediately pulled over to a gas station and checked the fuel cap (it was on, secured). The car is due for an oil change within the next 1,000-2,000 miles/3-6weeks. Should I just ignore the light, change the oil & see what happens? Do I just take it to a dealership for diagnosis (they want +$200)? Diagnose it myself with a scanner/device? Which scanner is best? One connected by Bluetooth? FIXD? I replaced both air filters on the car myself 5-6 months ago...could that be the cause? I am a novice when it comes to working on cars. Thanks for your suggestions.
Go to the top right of this page and select "Tools" to see Scotty-recommended scan tools. Blue Driver seems to me to be a good option as it is reasonably powerful, yet inexpensive.
https://www.amazon.com/shop/scottykilmer?listId=2XW7WGTYW92WE
Thanks Glen_stet 🙂
If you're interested in knowing more about your own car, you can get your own OBDII scanner, they range from as little as about $40 on up. I believe Scotty likes the Blue Driver one that runs about $100, but I've never personally tried that model. If you're just wanting to know what's wrong, you can drive to any discount auto parts store (Autozone, O'Reilly's, etc.) and they will scan it for free and tell you all of the Diagnostic Trouble Codes (DTCs) that have caused the CEL to illuminate.
Edit: if the CEL is flashing, you need to get it looked at right away. If it's just illuminated, it's worth checking out, but it's not really critical.
Thanks ZLiteStar ! 🙂