Serpentine Belt went out 18 RS400, Finally - Infiniti Q50 Forum
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post #1 of 138 (permalink) Old 03-23-2018, 08:42 AM Thread Starter
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Default Serpentine Belt went out 18 RS400, Finally

well the dreaded finally happened to me yesterday, on my way home taking the exit and all of a sudden my battery light went on, I knew immediately what happened, pulled over as i'm pulling to shoulder temp gauge shoots up all the way, engine light comes on, Luckily I shut the car off and opened the hood and saw no coolant puke, but the belt was off, hopefully I got lucky and they can just put a new belt on it and it'll be fine and I didn't damage the engine, like my buddies q60 needed a new engine, took a month, really not in the position to be without the car for a month. I was told that only 16/17 were affected by this issue, guess thats not the case. I'll keep you guys updated, any insight on this issue would be appreciated.
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post #2 of 138 (permalink) Old 03-23-2018, 08:45 AM
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Sorry to hear man, hope it works out, but if the car us under warranty why would you be without a car? The dealer will give you a "loaner" for the whole time.
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post #3 of 138 (permalink) Old 03-23-2018, 08:49 AM Thread Starter
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Nope, Im young, they won't give you one if you're under 25
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post #4 of 138 (permalink) Old 03-23-2018, 08:53 AM
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I always get one and I’m under 25 as well. I think it varies by dealer.
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post #5 of 138 (permalink) Old 03-23-2018, 09:06 AM
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This is why i'm checking mine at almost every gas fill just to be safe. Soon as I see that guy moving I'm taking it in. Hopefully I never do.

What is the exact cause of the movement? Is it just not aligned right? or a bad pulley?

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post #6 of 138 (permalink) Old 03-23-2018, 09:24 AM
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Yes, this is something I've grown paranoid about as well. I would really like to have a better idea of what to look for when I'm checking the belt area.

Up to this point, I've been looking for signs of the belt being offset on the pulleys or frayed edges showing wear. Is that what we should be looking for?
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post #7 of 138 (permalink) Old 03-23-2018, 09:41 AM
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What exactly would I be looking for on the belts?

There is a Youtuber by the name "auto fanatic" that had this happen to him 2 weeks ago.

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post #8 of 138 (permalink) Old 03-23-2018, 10:23 AM
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What exactly would I be looking for on the belts?

There is a Youtuber by the name "auto fanatic" that had this happen to him 2 weeks ago.
I was following him when I was looking at GT350's now I'm following him about the Q50. His is a 2017 though.

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post #9 of 138 (permalink) Old 03-23-2018, 10:45 AM
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Quote:
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What exactly would I be looking for on the belts?

There is a Youtuber by the name "auto fanatic" that had this happen to him 2 weeks ago.
Hope this helps. I check mine every week along with engine oil and other fluids. Just make sure you're looking at the right pulley and not the tensioner pulley. I thought that Infiniti had corrected this issue on the '18's but obviously that's not the case.
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post #10 of 138 (permalink) Old 03-23-2018, 10:49 AM
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Hope this helps. I check mine every week along with engine oil and other fluids. Just make sure you're looking at the right pulley and not the tensioner pulley. I thought that Infiniti had corrected this issue on the '18's but obviously that's not the case.
That's a huge help. Thanks!

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