finntiger9
Mondeo battery discharge issue
Summary of the thread
A 2018 Ford Mondeo is experiencing a battery discharge issue, with symptoms like error messages, weak lights, and starting difficulties. The problem may be due to a defective battery sensor, which can cause incorrect charging. A similar case was resolved by replacing the faulty sensor, suggesting this as a potential solution.
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4 comment(s)
finntiger9 (community.author)
Interesting! No, it started gradually, so I can't pinpoint any specific trigger. Did you also suspect the battery sensor, or was it something else entirely causing the discharge?
paulajones1
Yep, I was chasing shadows at first, thinking it was the alternator! Eventually, a diagnostic pointed to a faulty battery sensor. It was constantly sending incorrect data, leading to the battery being over or undercharged. Cost me around 315€ at the workshop to get it sorted.
finntiger9 (community.author)
Thanks a bunch for the info! It's good to know I'm on the right track with the battery sensor. I'll take it to the shop and get it checked. Seems like it could save me a lot of headaches and potential damage in the long run! Will let you know how it goes!
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FORD
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MONDEO
paulajones1
Whoa, that sounds eerily familiar! I had the exact same symptoms with my Mondeo! The battery drain was driving me nuts. Did it start happening after any specific event, like a service or a particularly cold spell?