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FischerHolgi

Dying Infiniti EX? Battery & Terminal Woes Need Help

Weak battery when starting the engine

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General electric malfunction

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Fault stored

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Dim or flickering lights

Hey everyone, my '08 Infiniti EX (202K km) is giving me headaches with electrical issues. The battery seems weak during starts, lights are flickering, and I'm getting electrical fault warnings. My last mechanic experience wasn't great, so I'm a bit hesitant to go back. Has anyone dealt with Terminal 30 connection problems on these cars? What was your repair experience and cost like? Looking for recommendations on trusted mechanics who know their way around Infiniti electrical systems. Thanks in advance!

4 comment(s)


RobZuern

Hey there, I had similar issues with my 2011 Infiniti FX35 last year. The symptoms you're describing sound really familiar I had weak starts, dimming lights, and unusual electrical warnings popping up on the dash. Turned out my problem wasn't just the battery it was a combination of a corroded terminal connection and a failing alternator. The terminal connections had built up some nasty corrosion that was preventing proper charging. My trusted mechanic cleaned up the connections, but during testing, they found the alternator wasn't putting out enough charge either. Had to get both fixed, but it wasn't a super serious repair just time-consuming because they had to test the whole charging system to pinpoint the exact issues. The car's been running great since then with no electrical problems. I'd recommend finding a shop that specializes in Infiniti or at least Japanese cars. They'll know exactly where to look and what to test first. These electrical issues can be tricky to diagnose if you don't know the common weak points in these models. Best of luck!

FischerHolgi (Author)

Thanks for sharing your experience! That's really helpful. The alternator and terminal connection issue sounds exactly like what I might be dealing with. Do you remember roughly how much you ended up paying for the whole fix? Also, just curious have you had any other electrical problems since getting it repaired?

RobZuern

Hey again! Glad I could help! After taking it to my mechanic last month, it turned out to be a battery issue and that pesky Terminal 30 interruption you mentioned. The total bill came to 290€ mostly for the new battery and labor to fix the connection problems. Since getting it fixed, my FX35 has been running like a charm! No more flickering lights, weak starts, or any of those annoying electrical warnings. It's like having a different car, honestly. The Terminal 30 issue was definitely the culprit in my case, and getting it sorted made all the difference. I know you were worried about mechanic experiences, but sometimes you just need to find the right one who knows these Infinitis inside and out. Mine definitely proved their worth with this repair. If you're still looking for a good mechanic, I can share some recommendations depending on your area. Let me know if you need any other info about the repair! Always happy to help another Infiniti owner out.

FischerHolgi (Author)

Thanks so much for all the details! I actually just got back from the mechanic today, and you wouldn't believe it my situation was super similar to yours. They found a corroded Terminal 30 connection and a dying battery. The whole thing cost me about 320€, a bit more than yours but still not too bad considering all the stress it was causing me. The mechanic I found was actually great! They specialized in Japanese cars and knew exactly what to look for. Fixed everything in about 3 hours, and now my car starts up like new. No more flickering lights or warning messages popping up on the dash. Really appreciate everyone's help and suggestions here. Sometimes it just takes finding the right mechanic who knows what they're doing. Feeling much better about my Infiniti now hopefully this fix will keep it running smoothly for a while! Take care, everyone!

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