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jonathan_shadow4

Espace High Voltage System Error

I've got a 2023 Renault Espace hybrid with about 245k km on the clock. Recently, I've been getting a 'High-voltage system error' message. The engine sometimes shuts off, and there's a noticeable reduction in power. Anyone else experienced this? Any ideas what might be causing it? I already checked the error memory and the error is stored.

Summary of the thread

A 2023 Renault Espace hybrid displayed a 'High-voltage system error' message, causing engine shutdowns and reduced power. The issue was linked to a heavily discharged or defective battery, possibly due to the car sitting unused for weeks. The suggested solution was to check the high-voltage system and battery at a workshop. Replacing the defective battery resolved the problem.

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4 comment(s)

sinadavis52

I had something similar happen with my Espace. Not sure if it's exactly the same, but I was getting weird electrical fault messages and the car felt sluggish. Was your battery heavily discharged recently?

jonathan_shadow4 (community.author)

Hmm, that's interesting. Now that you mention it, the car did sit for a couple of weeks without being driven. Could that really cause such a dramatic issue with the high-voltage system?

sinadavis52

Yeah, in my case it turned out the battery was heavily discharged. The voltage sensor freaked out and triggered all sorts of warnings. I would suggest visiting your local workshop and getting it checked, especially the high-voltage system and the battery itself.

jonathan_shadow4 (community.author)

Thanks for the tip! I took it to the shop, and you were spot on. Turns out the battery was indeed defective, they charged 290€ for a new one and the problem is gone. Appreciate the help!

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RENAULT

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ESPACE