Seeking Solutions for Overheating and Check Engine Light Issues in 2018 Hyundai Santro

Hey there! A similar thing happened to my 2015 Hyundai Elantra last year when it hit around 130K KM. It turned out not to be the coolant pump, but the Cable on the pump/control unit was defective. I had this overheating issue and constant check engine light, similar to your symptoms. The mechanic at my local garage examined the control unit to identify the trouble. Don't want to spook you, but it was a bit of a serious fix since it involves the car's cooling and control system. The Cable had to be replaced, and then the whole system needed a good testing. The guy at the garage told me this kind of issue could arise due to regular wear and tear, especially in cars that have clocked a high mileage. If you're confident with the mechanic, have him check this first. It could save you from bigger issues down the line. In short, don't overlook this. It could mean something serious. Be safe and take care of your ride!

Hey, thanks for the quick reply! Funny thing, never even thought about a defective cable causing my Hyundai Santro's overheating. I'll definitely have my mechanic check it out. Just for ballpark figure, do you recall how much you ended up shelling out for this fix on your Elantra? Also, have you run into any other related issues since that repair? Cheers.

Hey, no problem, happy to help! For my Elantra, getting that defective cable on the pump/control unit taken care of ran me roughly 95.00 €. It was well worth it though. And just to give you a quick update, I haven't come across any similar issues since knocking that out. The electric coolant pump has been working like a charm, no overheating or bothersome check engine light since. Best of luck with your Santro!

Thanks a ton, bud! I'm breathing a bit easier knowing the cost's not exorbitant and the repair seems to hold well. I'll get the Santro to a trusted garage soon and have them look at the pump and cable unit. Cheers for sharing your insight, it's been incredibly helpful. Appreciate it!