alfredhuber8

Arkana Hybrid Battery Sensor Issue

I've got a 2021 Renault Arkana hybrid with about 137k km. Recently, the car struggles to start sometimes, and the lights seem a bit dim, almost flickering, especially at idle. I've checked the battery voltage, and it seems low even after a decent drive. I'm suspecting a bad battery sensor. Anyone else experienced something similar? A defective battery sensor can cause inaccurate readings, leading the car's charging system to undercharge the battery.

4 comment(s)

Hey! I have an Arkana too. I had similar symptoms last year - weak starts and flickering lights. I also suspected the battery itself, but it turned out to be a faulty sensor. Did you check the sensor connections for corrosion or damage?

Thanks for the info! Good to know I'm not alone. I did a quick visual check of the sensor connections, but didn't see anything obvious like corrosion. Where was your sensor located, and how did you finally diagnose it?

Mine was near the negative terminal of the battery. Honestly, I didn't do much diagnosing myself. I took it to a workshop, and they confirmed the faulty sensor with their diagnostic tools. They mentioned it was throwing off the battery voltage readings, which is why the charging system wasn't working correctly. Best to get it checked professionally; they can pinpoint the issue quickly.

Appreciate the advice! I took your suggestion and went to a shop. They confirmed it was indeed the battery sensor. Repair cost me about 315€ including labor. Now the car starts like new and the lights are bright again. Thanks for the help!

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