Central locking problems

healeyneil · Post by **healeyneil** » Mon Jun 06, 2022 1:53 pm

I’ve read old posts and I think I know the answer, but other input would be valued.
2006 model, last year the central locking became intermittent off the key, so I sent the GM5 module away to have new relays fitted. It made no difference

I’ve been happily just using the key since, but today, I discover that I don’t have central locking anymore. The key opens the drivers door, but nothing else. The passenger door won’t unlock, nor will the central storage bin. I haven’t read any codes yet, but it sounds like I need a new module. I’ll read the codes, and maybe disconnect the battery for a wee while, but I’m not convinced. Anyway, where’s best for a new one ? eBay is full of pre used ones, and I don’t want to chance that. I guess I’ll also need to get any new one coded in ?
Neil

healeyneil · Post by **healeyneil** » Mon Jun 06, 2022 4:49 pm

Update. Fuse 30 was blown. However, on replacing it, Firstly, the passenger door unlocked, then shortly after got a puff of smoke from the fuse box area ! Now I’ve got a loud noise coming from the right hand side of the boot area, sounds like a pump running empty. It’s not the hood pump. The noise continues with the ignition off, so I’ve had to disconnect the battery
What on earth could be making that noise .

bigwinn · Post by **bigwinn** » Mon Jun 06, 2022 4:57 pm

is it the central locking on the fuel cap?

enuff_zed · Post by **enuff_zed** » Mon Jun 06, 2022 6:18 pm

bigwinn wrote: ↑Mon Jun 06, 2022 4:57 pm is it the central locking on the fuel cap?

I'd agree. Sounds like the solenoid there is not quite travelling enough and the motor is permanently running. Hence the blown fuse.

Umfaan · Post by **Umfaan** » Mon Jun 06, 2022 6:37 pm

Disconnect the plug through the wheel arch and test again. If it is the fuel cap lock this one is for sale

: image.jpg (177.04 KiB) Viewed 398 times

healeyneil · Post by **healeyneil** » Mon Jun 06, 2022 6:47 pm

Certainly the right area. I’ll try that tomorrow and report back. Thanks guys

healeyneil · Post by **healeyneil** » Tue Jun 07, 2022 11:53 am

It was the fuel cap lock that caused the noise. Took it out and reconnected the battery. Now the drivers door won’t open, and after a minute or two, started buzzing the same way as the fuel cap lock had ! Grrr. Drivers door worked perfectly before. Is this just coincidence, or something else. I still don’t know if my GM5 is working or not.
Did I read that someone on here can test/ repair ?
Neil

healeyneil · Post by **healeyneil** » Tue Jun 14, 2022 1:16 pm

: 29DA1C53-4F3D-499D-A87C-728AB270246C.jpeg (98.25 KiB) Viewed 327 times

I replaced my drivers door lock - that was a struggle. I’d cheerfully strangle the sod that designed it that way !
From the photo above, we can conclude that my GM5 unit is, to use the technical term, f*ck*d !. The one that had new relays fitted in November

enuff_zed · Post by **enuff_zed** » Tue Jun 14, 2022 1:21 pm

Wow!
Where did you send it? Considering it made no difference, have you any evidence that it was actually repaired at all?

healeyneil · Post by **healeyneil** » Tue Jun 14, 2022 8:09 pm

I can’t remember the name of the guy. To be fair , it seems to have two new relays fitted. It only burned out this week, I suppose. Whether the GM5 goosed the Petrol cap lock and the drivers door lock, or vise versa, who knows.
New GM5 coming

healeyneil · Post by **healeyneil** » Wed Jul 27, 2022 3:24 pm

Well, that took a while. I fitted my new GM5 module, then the guy that did the coding on my 5 series went awol. Finally got someone else to code it, but still nothing off the buttons. I went to the guy how supplied my key ( 3 years ago ) and he replaced the battery in the key ! Success ! With aftermarket keys it seems that batteries are easy to replace - and I’m not convinced it’s rechargeable
If anyone wants a GM5 unit for parts, just cover the postage and it’s yours

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