G20 M-Sport 12v power outlet will not power tyre inflator but it does power my phone

RhooseRebel · 08-05-2021, 03:26 PM

A few weeks ago I had to replace the 20 amp fuse for the 12v front power outlet and now when I plug my 12v tyre inflator into the 12v socket it doesn't power it but my phone charger works in the socket.

I assumed there is a fault with the inflator so I plug it into my wife's DS3 and it works just fine. I try the inflator in my G20 again, turning the connector in the socket as I go but it still doesn't power it. The phone charger still works though!

Any ideas please?

Cheers

RichardM · 08-10-2021, 09:58 AM

I know for 12v USB adapters the socket can be very 'fussy' about which one's work. I have one that doesn't work in the BMW even though it works in every other car

Keith_C · 08-10-2021, 10:20 AM

Quote:

Originally Posted by RhooseRebel

A few weeks ago I had to replace the 20 amp fuse for the 12v front power outlet and now when I plug my 12v tyre inflator into the 12v socket it doesn't power it but my phone charger works in the socket.

I assumed there is a fault with the inflator so I plug it into my wife's DS3 and it works just fine. I try the inflator in my G20 again, turning the connector in the socket as I go but it still doesn't power it. The phone charger still works though!

Any ideas please?

Cheers

It's not a Ring tyre inflator by any chance is it as they ended up modifying the plug on them as I think they only had one spring connector on certain models, the newer ones now have two.

nil98 · 08-10-2021, 02:36 PM

Quote:

Originally Posted by Keith_C

Quote:

Originally Posted by RhooseRebel

A few weeks ago I had to replace the 20 amp fuse for the 12v front power outlet and now when I plug my 12v tyre inflator into the 12v socket it doesn't power it but my phone charger works in the socket.

I assumed there is a fault with the inflator so I plug it into my wife's DS3 and it works just fine. I try the inflator in my G20 again, turning the connector in the socket as I go but it still doesn't power it. The phone charger still works though!

Any ideas please?

Cheers

It's not a Ring tyre inflator by any chance is it as they ended up modifying the plug on them as I think they only had one spring connector on certain models, the newer ones now have two.

Interesting my 12v by the cup holders has never worked! Or at least won't power my dashcam so I'm guessing it's dead. Not got round to slinging it in for a warranty fix.
N

danorman777 · 08-10-2021, 03:32 PM

The fuses go on the 12v sockets fairly easily on BMWs. Some have more than one fuse so could be that?

ShereKhan · 08-10-2021, 04:00 PM

Quote:

Originally Posted by nil98

Interesting my 12v by the cup holders has never worked! Or at least won't power my dashcam so I'm guessing it's dead. Not got round to slinging it in for a warranty fix.
N

I have exactly the same fault - will get the car booked in someday as i have the charger recall still to sort out.

nil98 · 08-10-2021, 04:02 PM

Quote:

Originally Posted by ShereKhan

Quote:

Originally Posted by nil98

Interesting my 12v by the cup holders has never worked! Or at least won't power my dashcam so I'm guessing it's dead. Not got round to slinging it in for a warranty fix.
N

I have exactly the same fault - will get the car booked in someday as i have the charger recall still to sort out.

Charger recall?

hamera · 08-11-2021, 11:32 AM

Here's an example of two different types of adapters. The one on the right won't work in the front 12V socket but it's OK in the back row socket. The one on the left work in both front and back sockets.

chrisnoy · 08-11-2021, 12:00 PM

Quote:

Originally Posted by hamera

Here's an example of two different types of adapters. The one on the right won't work in the front 12V socket but it's OK in the back row socket. The one on the left work in both front and back sockets.

My front charger socket works with my tyre compressor and my phone, must be lucky?

ShereKhan · 08-11-2021, 04:02 PM

Quote:

Originally Posted by nil98

Charger recall?

The granny charger cable needs to be swapped.

ShereKhan · 08-11-2021, 04:03 PM

Quote:

Originally Posted by chrisnoy

My front charger socket works with my tyre compressor and my phone, must be lucky?

My compressor works in the boot socket and rear socket but not the front 12V socket.

Mugspence · 08-12-2021, 02:35 PM

Same for me. Works in rear socket only. Very strange.

hamera · 08-12-2021, 02:52 PM

It's not strange at all. The front and back are just different types of 12V sockets. One is cigarette lighter socket and the other is accessory socket. Some adapters fit both and some only fit the accessory one.

How Are Cigarette Lighters and Accessory Sockets Different?
https://www.lifewire.com/cigarette-l...-socket-534783

"Is It a Cigarette Lighter Socket or 12V Accessory Socket?

Unless you want to look up the specs and get out a micrometer, the best way to find out whether you’re dealing with a cigarette lighter socket or an accessory socket is to check your owner’s manual or contact the dealership. The two do look slightly different, but it's a difference measured in millimeters.

You also can’t tell whether or not a socket is designed to work with a cigarette lighter simply based on the fact that it didn't come with one. While most dash-mounted sockets are still designed to accept cigarette lighters, you shouldn't just assume that it does.

The general rule of thumb is that if your dash has multiple sockets, one of them will usually be a cigarette lighter, and the others will probably be accessory sockets. In that same vein, additional sockets located under the dash, in the center console, and elsewhere in the vehicle, are usually dedicated accessory sockets."

225 · 08-12-2021, 03:13 PM

Quote:

Originally Posted by chrisnoy

Quote:

Originally Posted by hamera

Here's an example of two different types of adapters. The one on the right won't work in the front 12V socket but it's OK in the back row socket. The one on the left work in both front and back sockets.

My front charger socket works with my tyre compressor and my phone, must be lucky?

Mine does as well powers my tyre pump.

UnluckySaxon · 08-13-2021, 07:06 AM

I had the same with the cigarette lighter 12v and took it into the dealer - Turns out, theres no fault at all, exactly as Hamera says.
One of my 12v usb chargers worked and the other doesn't. Boot one works with both.

JoelGray · Yesterday, 01:22 PM

My Nextbase dashcam won’t work in the front 12v socket, without a lot of ‘jiggling’ and then won’t stay powered for long anyway. So I gave up and used a USB adaptor in the socket and the dash am now works fine ��

HeebieJeebies · Yesterday, 01:49 PM

Quote:

Originally Posted by JoelGray

My Nextbase dashcam won’t work in the front 12v socket, without a lot of ‘jiggling’ and then won’t stay powered for long anyway. So I gave up and used a USB adaptor in the socket and the dash am now works fine ��

Yeah mine is the same, it’s been working for a few days now after ‘jiggling’

Have you got a link to the USB adapter used? Don’t think mine came with one

. Mine is a Nextbase camera as well....

HeebieJeebies · Yesterday, 02:09 PM

Scrap that ^^^ I’ve got one ordered

The_Tok'Ra · Yesterday, 03:43 PM

My cheapy tyre pump from Halfords works fine in both front and rear 12v sockets.

I'd post a link to it, but they don't seem to sell it anymore, but it's just the same as this one.

https://www.ebay.co.uk/itm/385678368...3ABFBMqv2Gr95j

or this one from the AA, in a different case

https://www.ebay.co.uk/itm/183728284...Bk9SR6r9hq_eYw

HeebieJeebies · Today, 01:56 AM

Yeah my tyre compressor works fine in our G21 and G22 in both sockets, seems Nextbase shaved a few thou’ off their power plug

Took me a fair bit of time to route the Nextbase cable through trim and up to the drivers side of the windscreen only to discover the dilemma with the power lead

. It’s not a very clean look either, so it’s getting changed as soon as the new cable arrives

08-05-2021, 03:26 PM	#1
RhooseRebel New Member 5 Rep 7 Posts Drives: G20, 320i M-Sport Join Date: Jun 2021 Location: South Wales iTrader: (0)	G20 M-Sport 12v power outlet will not power tyre inflator but it does power my phone A few weeks ago I had to replace the 20 amp fuse for the 12v front power outlet and now when I plug my 12v tyre inflator into the 12v socket it doesn't power it but my phone charger works in the socket. I assumed there is a fault with the inflator so I plug it into my wife's DS3 and it works just fine. I try the inflator in my G20 again, turning the connector in the socket as I go but it still doesn't power it. The phone charger still works though! Any ideas please? Cheers
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08-10-2021, 09:58 AM	#2
RichardM Colonel 133 Rep 2,046 Posts Drives: G21 M340i LCI Join Date: Aug 2007 Location: Essex UK iTrader: (2)	I know for 12v USB adapters the socket can be very 'fussy' about which one's work. I have one that doesn't work in the BMW even though it works in every other car __________________ 2023 G21 M340i LCI Previous - 2020 G21 330d M-Sport, F31 335d M-Sport, F31 330d M-Sport
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08-10-2021, 03:32 PM	#5
danorman777 Captain 102 Rep 343 Posts Drives: M340i Touring Join Date: Sep 2015 Location: Sussex iTrader: (0)	The fuses go on the 12v sockets fairly easily on BMWs. Some have more than one fuse so could be that?
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08-11-2021, 11:32 AM	#8
hamera Lieutenant 442 Rep 423 Posts Drives: 320i M Sport (G20) Join Date: Oct 2019 Location: UK iTrader: (0)	Here's an example of two different types of adapters. The one on the right won't work in the front 12V socket but it's OK in the back row socket. The one on the left work in both front and back sockets. Attached Images
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08-12-2021, 02:35 PM	#12
Mugspence New Member 2 Rep 26 Posts Drives: BMW 330e (G21) XdriveTouring Join Date: May 2021 Location: NE England iTrader: (0)	Same for me. Works in rear socket only. Very strange.
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08-12-2021, 02:52 PM	#13
hamera Lieutenant 442 Rep 423 Posts Drives: 320i M Sport (G20) Join Date: Oct 2019 Location: UK iTrader: (0)	It's not strange at all. The front and back are just different types of 12V sockets. One is cigarette lighter socket and the other is accessory socket. Some adapters fit both and some only fit the accessory one. How Are Cigarette Lighters and Accessory Sockets Different? https://www.lifewire.com/cigarette-l...-socket-534783 "Is It a Cigarette Lighter Socket or 12V Accessory Socket? Unless you want to look up the specs and get out a micrometer, the best way to find out whether you’re dealing with a cigarette lighter socket or an accessory socket is to check your owner’s manual or contact the dealership. The two do look slightly different, but it's a difference measured in millimeters. You also can’t tell whether or not a socket is designed to work with a cigarette lighter simply based on the fact that it didn't come with one. While most dash-mounted sockets are still designed to accept cigarette lighters, you shouldn't just assume that it does. The general rule of thumb is that if your dash has multiple sockets, one of them will usually be a cigarette lighter, and the others will probably be accessory sockets. In that same vein, additional sockets located under the dash, in the center console, and elsewhere in the vehicle, are usually dedicated accessory sockets." Last edited by hamera; 08-12-2021 at 03:05 PM..
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08-13-2021, 07:06 AM	#15
UnluckySaxon Private First Class 62 Rep 190 Posts Drives: BMW 330e G20 Join Date: Aug 2020 Location: London iTrader: (0)	I had the same with the cigarette lighter 12v and took it into the dealer - Turns out, theres no fault at all, exactly as Hamera says. One of my 12v usb chargers worked and the other doesn't. Boot one works with both.
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Yesterday, 01:22 PM	#16
JoelGray Registered 0 Rep 4 Posts Drives: BMW 330e Join Date: Apr 2024 Location: Corsham iTrader: (0)	My Nextbase dashcam won’t work in the front 12v socket, without a lot of ‘jiggling’ and then won’t stay powered for long anyway. So I gave up and used a USB adaptor in the socket and the dash am now works fine ��
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Yesterday, 02:09 PM	#18
HeebieJeebies Private First Class 79 Rep 177 Posts Drives: G21 320d xdrive, G22M440i xdri Join Date: Jul 2021 Location: Scotland iTrader: (0)	Scrap that ^^^ I’ve got one ordered
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Yesterday, 03:43 PM	#19
The_Tok'Ra Lieutenant 123 Rep 482 Posts Drives: 325ti Compact Sport, G21 M340i Join Date: Feb 2023 Location: UK iTrader: (0)	My cheapy tyre pump from Halfords works fine in both front and rear 12v sockets. I'd post a link to it, but they don't seem to sell it anymore, but it's just the same as this one. https://www.ebay.co.uk/itm/385678368...3ABFBMqv2Gr95j or this one from the AA, in a different case https://www.ebay.co.uk/itm/183728284...Bk9SR6r9hq_eYw
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Today, 01:56 AM	#20
HeebieJeebies Private First Class 79 Rep 177 Posts Drives: G21 320d xdrive, G22M440i xdri Join Date: Jul 2021 Location: Scotland iTrader: (0)	Yeah my tyre compressor works fine in our G21 and G22 in both sockets, seems Nextbase shaved a few thou’ off their power plug Took me a fair bit of time to route the Nextbase cable through trim and up to the drivers side of the windscreen only to discover the dilemma with the power lead . It’s not a very clean look either, so it’s getting changed as soon as the new cable arrives
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