04-12-2023, 12:06 PM | #1 |
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Experiencing the long crank starts
Hey all,
I’ve had my G80 about a month now, 870 miles. I’ve been experiencing the long crank starts when engine is at temp like several other folks here. A few people have had a bad fuel injector and spark plug replaced which solved the problem. I brought in the vehicle to my local dealership today for the spark plugs to be looked at. I also have the break in service scheduled two weeks for now when I’ll be around 1200 miles after a small trip next weekend. The dealership couldn’t find any fault codes, couldn’t replicate the issue, and said everything was fine. They refused to pull the spark plugs because they wouldn’t get paid under warranty. While they were at it, they did my break-in service without asking. Two questions — should I start a case with BMW Corperate regarding the long crank issue? Will having the break in service done at 870 miles cause any issues? |
04-12-2023, 12:15 PM | #2 |
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Sounds to me that the dealer isn't doing their due diligence to troubleshoot the issue.
I'd suggest another dealer if you have other dealers in your area, which may be a problem unless you're in Nashville. As for the break-in service performed earlier, you should be fine. Good luck! |
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04-12-2023, 12:24 PM | #3 | |
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Yeah, I’m in Nashville. I purchased from Chattanooga and the sales manager said he’s talking to his service team to see what they can do. After speaking with the service manager at Nashville he said bring it back if it long cranks again and they’ll look at the spark plugs on their dime. Service tech tried to tell me the break in service could fix the long crank because of the “software update” they do with the break in service. Sounds like a load of bullshit to me. |
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04-12-2023, 11:35 PM | #4 | |
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Sounds like they have zero interest and zero knowledge. |
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04-13-2023, 05:16 AM | #5 | |
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This alone "they will do it on their dime" thing sounds super fishy and I would never go for that. The whole case is clearly a warranty issue and should be treated as such formally from the very beginning. Not partially good will, not on their dime, nada. Otherwise, this may be ground for BMW later on to refuse follow-up warranty service on that, or God knows what else they can come up with. Last edited by beamlord; 04-13-2023 at 06:14 AM.. |
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04-13-2023, 06:35 AM | #6 | |
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01-25-2024, 07:54 PM | #7 |
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Any solution on OPs problem? I have a G87, practically the same drive train with similar issue. Vehicle currently has 1500 miles and will have occasional long crank with no fault codes and dealer couldn’t duplicate the problem. It usually happens when vehicle sits for a few hours to a day, when starting it’ll take a few extra seconds to start. It seems similar to what older BMW were doing when they were having injector or fuel pump issues.
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01-25-2024, 08:39 PM | #8 | |
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Slightly long crank won’t set a code. If it’s a fuel pump, pressure regulator or injector letting the fuel pressure slowly bleed off. This would require manual testing. You would have to leave the car at the dealer a day or two. They would have to have a pressure gauge on the fuel system and see there was zero pressure when the start sequence started. The pressure would build while cranking until at pressure. Then the injectors would be able to work and the car would start. I’m old and fuel pressure may be able to be watched with a diagnostic tool now. But same process applies. I had a similar issue years ago and it took forever to find a slightly cracked AN fuel fitting. |
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01-25-2024, 08:41 PM | #9 | |
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https://g80.bimmerpost.com/forums/sh....php?t=1940488 |
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01-25-2024, 08:57 PM | #10 | |
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Other technicians just threw a whole new fuel system at it until it went away. LOL |
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01-26-2024, 04:17 AM | #11 | |
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01-26-2024, 05:15 AM | #12 |
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Sounds to me that would be extremely dangerous if you were using the
'Auto Start/Stop' and had a small window to pull out and merge into traffic. Sounds like a law suit if an accident happened because of it. That is , if you were still alive. |
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01-26-2024, 09:24 AM | #14 |
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I've had this issue for 6k miles now. My dealer has checked the car once and told me there's nothing wrong and I'll be fine. I've been slowly documenting it with videos so I can hopefully get some movement at my next service. If they still say no, I'm going to go to BMW NA.
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01-26-2024, 10:20 AM | #15 | |
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01-26-2024, 10:34 AM | #16 |
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I experienced the long crank for around two weeks and it went away one day under 1000 miles on the odometer. I would smell gasoline when it happened.
Service tried on two occasions to repeat the issue with no luck. The tech monitored the cylinders to look for misfires but all the cylinders were firing perfectly. I ended up trading it in around 8000 miles, but the issue never came back. I’m curious follow this thread though to see how it shakes out for others. I was always convinced something wasn’t quite right because it would often act starved/choked for fuel when I depressed the clutch pedal when coming to a stop. |
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01-26-2024, 12:34 PM | #17 |
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Long start. It's pretty infrequent, maybe 1 in every 10 starts? Car runs normally otherwise so I'm not too worried, but I'm still going to push for it to be fixed.
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