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Fuel Door won't open

badactual1

badactual1

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Nov 21, 2024
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2024 C400GT, won't open the fuel door. When I first bought it, it would not open so I took it back to the dealer and suddenly it started working. Fast forward 6 months and again its stopped working and I cannot open it. Anyone else having this issue?

Thanks
 
badactual1 said:
2024 C400GT, won't open the fuel door. When I first bought it, it would not open so I took it back to the dealer and suddenly it started working. Fast forward 6 months and again its stopped working and I cannot open it. Anyone else having this issue?

Thanks
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1) I have NOT had this issue with either my former '22 or my current '23 C 400 GT (having put about 6,000 miles on each bike).

2) I don't mean to insult you, but just to make sure: you know that you only have a limited amount of time to open the fuel door after the bike is turned off, right? I just looked it up in the owner's manual, which states it is two minutes.

Every once in a while I'm a little too slow when at a gas station -- putting the bike on the centerstand, taking off my gloves, etc. -- and have to press the main button again, then press it off, and then open the fuel door.

3) I suppose there could be a loose connection to the servo motor (I'm guessing there is one, somewhere) that allows it to be opened, or a problem with the motor itself, but I've never read anything about such problems in my several years reading posts here.
 
Yep - In the span of 5-7 seconds I turn off the bike, on the kickstand, and the door won't open. Started and shut-off the bike multiple times (maybe 20) and also made sure the bike lock was disengaged as well. I was told by the dealer to even hold the key close to the bezel under the handlebars as well. It did this once about a month ago, but the second time I cycled the engine it unlocked. Nuts.
 
It just opened after leaving the bike off for a couple hours. I didn't do anything different. Asked the Mrs start videoing me going through the steps, went through it two more times and still, it would not open. On the third try (for this round), it opened. So I closed it, started / stopped the bike again and it opened once more. Quickly drove over to the fuel-point and was able to get some 91 in it. This time I've got some video for the service center. Thanks for the input - I'll give another update soon.
 
badactual1 said:
It just opened after leaving the bike off for a couple hours. I didn't do anything different. Asked the Mrs start videoing me going through the steps, went through it two more times and still, it would not open. On the third try (for this round), it opened. So I closed it, started / stopped the bike again and it opened once more. Quickly drove over to the fuel-point and was able to get some 91 in it. This time I've got some video for the service center. Thanks for the input - I'll give another update soon.
Click to expand...
Until this issue gets resolved, and in case you're not aware of this, I'm pretty sure that removing just two screws will let you open the gas cap:

2022-07-31_08-37-51.webp

Those two screws -- the ones I've circled in green at the bottom -- hold that forward-most stock metal piece in place, and I believe that that particular piece is what the gas cap latch, um, latches against. So removing those two screws and the that arc piece underneath them should just let the cap flip open. I'm also pretty sure that they are T25 screws.

(My bike is in the shop now, getting new tires for the spring season, oil change, etc., so I can't just go out and verify any of this. And disregard the black piece: that's a bracket for the bottom of Wunderlich's "Business Bag" that I bought, and the stock screws down there are replaced with longer screws and spacers. That pic is from my C 400 GT gallery: https://billanddot.com/C400GT/#S-65 .)

So, if I'm correct in recalling that those two screws and the little arc of metal underneath them encloses the latch, all you need to do is carry a T25 screwdriver bit with you, if you're worried about not being able to get gas in a pinch. (There may even be one in the toolkit.)
 
badactual1 said:
Yes - That's what I I had to do the first time I fueled it, is removing those screws. Thankfully the driver is included in the toolkit from under the seat.
Click to expand...
By the way, I was just reading this older (but recently updated) thread on another Beemer forum:


It's about an RT, and the gas cap is tank-mounted, but it looks like the same parts are involved ... and perhaps an identical, or at least similar, problem is involved. The solution seems to be to spray some lubricant in the moving part of the latch, and then work it in there.
 
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