09-18-2018, 12:37 AM | #111 | |
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You definitely do not seem to have a water injection issue As for the sports display issue, I am not sure what to offer you :/ Perhaps the high elevation is the culprit. Found this:: HP Loss = (elevation x 0.03 x horsepower @ sea level)/1000
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09-18-2018, 08:31 AM | #112 |
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I was thinking that but given it’s turbo I don’t think there is near the power loss as an NA motor. My buddy picked up a 2015 M4 last night and I asked him to snap a photo of his sport displays. His reading is almost identical to mine so I think something must not be working properly.
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09-18-2018, 11:57 AM | #113 | ||
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That would have to be a very high elevation as the car will compensate for altitude as necessary. Logged through Europe
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09-18-2018, 12:04 PM | #114 |
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yeah, i agree with the others. water consumption (or the lack thereof) is the one surefire sign that your system isn't working. it's also the first thing the SA will ask you about, so best to track it for a little while so you can give them hard data.
or you could just go to them and say my sport display isn't working.... |
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09-18-2018, 12:38 PM | #115 |
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Best way to find out if there is water injection issues is by looking at the trunk badge.
If it says "M4 GTS", then yes, water injection isn't working.
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09-18-2018, 12:46 PM | #116 |
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09-18-2018, 02:30 PM | #117 |
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I had exactly the same issue with display showing maximum of 430hp. After replacing the water injection system (done under warranty so no charge) the display shows horsepower up to 500hp. I have posted all the receipts from my dealer so you can at least see what my experience was and what part number they installed. Hope that helps.
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09-18-2018, 05:41 PM | #118 | |
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I'm taking it in next Thursday to have them dig into it. Given my HP/TQ figures are essentially the exact same as my buddy's '15 M4 at the same elevation and temp, something's going on with mine. |
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09-20-2018, 05:09 PM | #119 |
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09-21-2018, 06:10 AM | #120 | |
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You can bet the dealer will say everything is fine, because they have not been through this with a few M4GTS's like my dealer has. Just keep pressing them. You are right, they will be wrong at first.
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11-05-2018, 02:28 PM | #121 |
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Finally got the empty tank message last weekend! It did take forever...
I started using the paddles more and now revving way past 5000 rpm as much as I can on the highway. A lot more fun this way anyway... I also noticed that the Hp display went from 450 hp to 500 hp after refill. So everything works!...for now... Last edited by jpdchicago; 11-05-2018 at 05:15 PM.. |
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11-20-2018, 10:06 AM | #122 | ||
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I ran my carly reader and it said low pressure for the water injection system and the dealer told me the fault codes or any fault codes were present! They refuse to look further into the issue. |
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11-25-2018, 11:33 AM | #123 |
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I have never emptied mine out completely but have added almost a gallon and a half which tells me it works. I also hear it running for a bit when I park in the garage for 45 seconds.
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11-26-2018, 11:15 AM | #124 | |
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In my other BMWs, launch control also didnt magically appear exactly at 1200 miles, it was past 2000 miles
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11-26-2018, 02:19 PM | #125 | |
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FYI, I only filled up the tank twice since I got the car. If you do not push past 5,000 rpm on a regular basis, a full tank will last that long or even longer. |
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01-13-2019, 11:48 AM | #126 | ||
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