Skoda Praktik turn signal woes

Sounds like a dodgy connection. I had a similar thing happen with my old Renault Megane, although it was the brake light. Error message on the dash, the whole shebang. Have you checked the bulb holder itself? Sometimes they corrode, causing intermittent faults. Also, give the wiring a good wiggle near the lamp. It could be a broken wire inside the insulation that's only making contact sometimes.

Interesting, I'll check the bulb holder for corrosion. Where exactly did you wiggle the wires on your Megane? Was it right at the back of the lamp, or further up the line?

I wiggled them right at the back of the lamp cluster where the connector plugs in. Think of it like a loose wire on a lamp at home – sometimes it works, sometimes it doesn't. If wiggling doesn't do anything, and the bulb holder looks okay, I'd take it to a shop. Electrical faults can be a real pain to trace, and you don't want to accidentally fry something.

Thanks for your help. The shop confirmed a defective plug connection to the turn signal lamp. They replaced the connector and cleared the error. It cost 95€, but at least it's fixed.