4 answers
It depends on what year your Octavia is and what LEDs exactly you have. If it's the main high beam or low beam, then usually on newer models you'll have to replace the entire headlight assembly - the manufacturer makes them non-serviceable. I know that on some Octavias you can get to individual LED modules, but that requires disassembling the whole headlight and special equipment, so it's easier to just buy a new assembly. In 2026, original headlight prices are pretty steep, so you should first look for refurbished assemblies or analogues from other manufacturers - they work just as well and cost less.
One tip: before you replace anything, make sure it's actually the diodes that burned out and not a wiring or contact issue. Sometimes a headlight works erratically because of oxidation or poor contact. If your car is still under warranty, go to the dealership - they often replace headlights for free. And if it's not, then it's better to go to electricians who know the electrics of your specific brand rather than to a general service center.
The person above got it right. My friend recently ran into the same issue on her 2019 Octavia - the LED in the low beam stopped working, and the service center told her they'd have to replace the whole unit because the LEDs are soldered in and can't be taken apart. But she actually found a Chinese unit on Avito that was decent quality and half the price of the official one, installed it herself - it's been working fine for a year now. If you have an older Octavia, you might still find models with replaceable bulbs sometimes, but that's pretty rare these days.
The LEDs in Octavia headlights are usually soldered to the board, so they don't get replaced separately. You'll have to change the whole unit, which is pretty expensive, but there's no way around it. I ran into the same thing with one of my customers - they wanted to save money, tried to find someone to fix it, but in the end they still went to the service center to replace the whole assembly. If you have a warranty, try contacting them, they might be able to help.
Usually on Octavias the LEDs are soldered directly to the headlight circuit board, so you can't just pull them out separately. I've dealt with this on friends' cars - you have to replace the entire headlight assembly. It's expensive, of course, but there's no other way around it. The manufacturer deliberately makes them non-repairable, so there's no way to modify them.
Though, there is a small chance the bulb didn't completely fail and it's just a bad contact. Before you head to the service center, try removing the headlight and taking a visual look - maybe the LED just came loose or got oxidized. But if it's actually a burnt-out LED, then removing and cleaning won't help.
The price depends on what year your Octavia is and what headlight version you have - on newer models the assemblies are more expensive. If you've got full LED, count on needing a serious amount of money. So it makes sense to call a couple of service centers and find out the exact cost for your specific trim level, maybe there are cheaper options than the original. I'd recommend not putting this off - driving with one headlight is dangerous and illegal.
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