Seeking Advice on 2011 Kia Cadenza Diesel Engine Issues: Glow Plug Relay Suspected

Hey there, fellow Kia driver! Your issue sounds similar to what I went through with my 2014 Kia Optima diesel. That pre-glow light was a constant bother on my dashboard too, and I experienced noticeable lag during cold starts. I took it to my trusty mechanic last month. After a thorough inspection, it turned out to be indeed a problem with the glow plugs, which were worn and needed replacement. It's not an uncommon issue with diesel engines that have clocked a decent mileage. The glow plugs essentially assist in firing up your engine, and if they're defective, the engine takes longer to start, especially in cold conditions. Additionally, worn-out glow plugs can also impact the DPF's regeneration process. Bits of soot get accumulated in the filter, causing the black smoke you mentioned. Replacing the faulty glow plugs solved this issue for me. So, from my experience, it sounds like you're on the right track suspecting your glow plugs. I'd totally recommend booking an appointment with a reliable garage and get the glow plugs checked. Not a huge deal, but a necessary fix. Wish you all the best!

Hey! Sounds like a pretty similar situation to what my Cadenza was dealing with about a year ago. The glow plugs were the culprits in my case too. Spot on with your guess! Just out of curiosity, any clue on how much you ended up spending on the fix? Also, have you experienced any other related snags since the repair was done? Keep me in the loop! Cheers!

Hey there! Good to hear from you again! As for the repair, it set me back about 560€ - not exactly pocket change, but considering the troubles it was causing, definitely worth it. That was specifically for replacing the faulty glow plugs that were worn out. Since getting the job done, it's been smooth sailing, no other related hitches at all! The car starts up briskly, even in the cold, and the black smoke issue is a thing of the past too. It feels good to see that pre-glow light off my dashboard! So yeah fingers crossed you'll have the same positive outcome. Just make sure to find a mechanic you trust, they'll sort you out! Best of luck, and may your Kia keep roaring down the road unhindered! Catch ya later!

Thanks, for your valuable feedback! Your experiences have made me confident about my hunch. I'll make sure to find a reputable mechanic this time around; don't want any more headaches. Hearing that the repair resolved your issues and you've had no other related problems since really comforts me. Looking forward to a worry-free ride! Stay safe, and here's to smooth driving for all of us! Cheers!