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reinhardblitz1

V70 Speedometer Error Battery Drain

My 2000 Volvo V70 diesel is acting up. Speedometer shows error messages, lights flicker, and the error memory is full. Starting the engine feels weak, and the battery seems drained. Any ideas?

Summary of the thread

A 2000 Volvo V70 diesel exhibited issues with the speedometer showing error messages, flickering lights, and a drained battery, leading to weak engine starts. The problem was identified as a faulty battery sensor, which can cause significant battery discharge. The recommended solution was to have the sensor checked and replaced at a workshop, which resolved the issue.

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4 comment(s)

sina_hunter1

Sounds familiar! I had a similar problem with my V70. Check the battery sensor; a defective one can cause the battery to discharge heavily. Does your car have problems starting, particularly in cold weather?

reinhardblitz1 (community.author)

A battery sensor, huh? Where is that located, and how would I check if that's the culprit? And yeah, cold starts have been rough lately.

sina_hunter1

It's usually near the battery or integrated into the battery terminal. Honestly, without proper tools, it's hard to diagnose. Given the error messages and weak battery, a workshop is probably the best bet. They can test the sensor and battery properly.

reinhardblitz1 (community.author)

Took it to the workshop, and you were spot on – faulty battery sensor! Cost me 315€ to fix, but at least it's sorted now. Appreciate the help!

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VOLVO

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V70