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Remote keys not working 2006 530d touring

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Hi all, I'm new to the forum so forgive me if this is a repetition of past topics / postings.

We have a problem with both our remote keys no longer working the central locking on our 2006 530d touring. We have resorted to using the slide out key to unlock / lock the car. I think the keys are charged and my fear is it is an array issue (or something expensive!).

Any clues as to a fix or a good independent BMW specialist in the Hants/West Susex area?

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Can try removing the battery to reset the car but in the end it will be the diversity antenna behind the third brake light, easy replacement and costs around £100 from the dealers.

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Thanks for the info - looks like I'm off to BMW parts for a new diversity antenna then! If I disconnect the battery will it cause any lock outs - I don't think the radio is coded as D-boy mentioned. I'd like to try a "reboot" but have the feeling that BLood is correct. If it won't do any harm to try then I'll disconnect the positive and leave it for half hour.

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Disconnecting the battery will do nothing more than reset the clock and date.

Disconnect -ve terminal, but best to wait for red P light to go out (if automatic) i.e. open tailgate and leave car for 15-20 mins until red light extinguished on auto box, then disconnect. Advised by another great forum member to do this as car not totally at rest until light gone out and playing with electrics before may throw a fault code.

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I've just had the same issue on my E61 (55 plate) it drove me nuts because I had to use the key to unlock the door, and the alarm was going off. A bit of a fix is to turn the key to the left first, then right to open the door, however using this method it was still 50/50 for the alarm going off. Ultimately I spent some moeny and had the diversity unit replaced, this has resolved the problem.

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Hello again. After a busy few weeks I'm confused to report that the wife says the keys are working again now. Having been quoted £90+VAT per hour by BMWMD (discounted rate for 5 yrs + cars) to diagnose and then what ever the fix would be this seems to be good news. However I'm not convinced things will remain "fixed". Anyone got an explaination? Do you think the Diversity thingy got wet, dried out and is now ok? Or perhaps a dodgy bit of wiring?

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Conclusion to the thread. I took the car in this afternoon to my local BMW specialist and £315 later inc VAT I have a working diversity thingy and keys which now lock the car. Water had got into the board and it was that which caused the failure. They also changed a few bulbs over, which was nice! This is a common problem with E61 cars so ho hum. No warranty of course.....

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Hi,

Just for information. My 530 Touring has just suffered the same problem - key fob suddenly would not open the doors...

I discovered that if I held the remote over the antenna (which runs along the top edge of the rear spoiler) it would work at close range. Not wanting to be ripped off by BMW dealers, I decided to have a go at fixing the antenna amplifier which is accessed by removing the three torx bolts on the inside of the glass section of the hatch. Once removed, slide the spoiler downwards to disengage the fixings then lift away and carefully remove the two connectors - one for the remote antenna and one for the upper brake lights.

The antenna amplifier is beneath an insubstantial black plastic 'lid' which clearly isn't up to the job of keeping moisture out of the amplifier.

Undo the two bolts holding the amp and disconnect remaining connectors and lift the amp out of the car. (it's grey about 25cm long and 1cm thick

Pop the clips and separate the two halves of the amplifier casing and you will see the circuit board.

Almost certainly, you will see that the remote antenna circuit is covered in corrosion over several of the components. (on the two I've looked at it was exactly the same corrosion in exactly the same place!

To fix, first use an old toothbrush (must be bone dry!!) And carefully brush away any corrosion from around the components

Now using a very fine-tipped soldering iron, carefully remelt the connections on the back of the board that hold the antenna connector.

carefully re-flow any solder joints that look suspect but be careful not to bridge any tracks!

Clean all the connectors with switch cleaner and reassemble.

That's it - keys will now work again without any problem! I've repeated this on two different cars with the same successful result.

Hope that helps anyone struggling with this issue.

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Hi all,

I've had this issue and can report the following that worked and what to check:

First, it's highly unlikely it's your keys.

It will more than likely be the circuit board aka "antenna amplifier diversity" thingy that lives under the spoiler of your rear window. Due to the poor design, water gets forced in there and contacts across the circuit board tracks and stops working.

THE QUICK FIX! -

Undo the four bolts securing spoiler to rear window (under the 4 blanking caps) - pop a soft towel on the roof first to catch spoiler as it drops off. Shut the glass and pop off the lid of the box on the rear window, it'll pop off if you pull up on a corner. Carefully open the cream coloured box and look at the circuit board, probably corroded and wet/damp. Dry it off with a hair drier, clean it up GENTLY with an old dry toothbrush. Try your key, it should work again. Reassemble.

TO IMPROVE THE SITUATION!-

Put some high melting point grease around the edge of the black box to stop water getting in.

Put one or two of those silica packets found in electrical goods boxes, new handbags in the black box, there's enough room.

Put some one sided rubber sticky pads on the box lid so when the spoiler is put back it pushed down on the black box lid and holds it tight.

Check the middle two bolt holes on the spoiler - is the framework tight to the spoiler? Stick it down with some hard glue, as otherwise when the spoiler is reattached, you'll notice it doesn't sit tight against the roof seal, allowing water to be forced against the black box at 70mph!

IF THIS DOESN'T WORK! -

Could be the board is shot, or the wiring harness that goes via the conduits by the boot/trunk hinge are snapped, I've had this too! If its just happened, put all the lights on, and open the boot slowly, see if the lights stutter on and off, if so, you have broken wires. Not sure still? VERY CAREFULLY stick you finger against the wiring harnesses that are wrapped in black cloth and have a wiggle whilst pushing key buttons, so it that proves it. Fixable, but a bit of a pig! I got to mine by taking off the rear roof speaker, soldering a new wire at the hinge end (no need to undo the hinge as the wire usually breaks about 3cms in, you can cut there, pull out so you can attach a new wire) and pulling it through the speaker and working from there. Oh yes, looking at the boot hinges, just the glass open, not the whole boot, it the right hand one, although, I had a cable on the hinge right next to it too that I had to fix.

GOOD LUCK!

Edited by Moai

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Hi ya

 

Just want to say a massive thanks to Moai and Glyn for their posts. Just managed to fix my central locking following their instructions. 

 

It started playing up the other day, the day after I'd washed the car. Obviously a bit over zealous with the pressure washer!  :shock: Woops.

 

All a bit wet in there with a bit of gunk on the board. Sorted.

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I've spent the weekend rewiring the loom to the tailgate on my 2009 E61 touring. Eventually all finished and working only to discover the remote key fob was inoperable. After tracing wires, checking continuities and for short curcuits etc traced it to fuse 59 , 5Amp in the right side of the boot had blown. I'm hoping thats the last of my electrical dramas for this week

 

Gavin

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Hi Chinesespaceman,

Thank you soooo much for posting this. I had the exact same problem after a rewire and had spent the entire day checking all cables again and again without any luck. Just checked out fuse #59 and had exactly the same problem. I have completed all rewiring. I own a pre LCI (jan 2007) 530i (E61) and have tow questions (do not know if anybody can be of help here:

 

The installation manual for the right BMW repair cable says that pin 19 of the 26 connector should be red/ yellow, I have connected all cables to the corresponding cables that were cut, but the only cable left is a brown one instead of a red/yellow. Anybody happen to know what the red/yellow cable is supposed to do, or is this also a ground cable.

 

Secondly, I am still getting the message that the right side reverse light is not operating, I assume it is not the ground, as my right rear fog light operates as it should, no burned circuit on the light board or anything, anyone with any other ideas?

 

Thanks Danny

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just the thread i have been looking for, remotes stopped working plus intermitent right hand fog light problem. just need a dry day to check the wires and the ampy thing. does anyone have a deffinate on replacement costs from bmw for the amp?

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Hi.

I am new to BMW's so please be gentle!! :-)

I have read loads of threads regarding the issues surrounding central locking problems, mainly because i have inherited the same problems on my recent acquisition.

The one thing that is puzzling me though having read this topic, is that i don't have a fuse in position 59?? I have a little card in the rear compartment, and it doesn't show that there should be a fuse of any value in this slot?? P'd me off because i was hoping for a very simple fix!! Could anyone throw any light please? Should i get a 5amp fuse and pop it in, or is this a waste of time?

One other question if i may. Is there anyway of telling if the batteries in the key fob are charged? We were told that you need to drive the car to charge the batteries, but even after a 45 mile journey still nothing happens??

Thanks in advance for your time.

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Would this cause problems with the radio also 

 

 

My key is doing the same 

Have to lock using key in door

Also when I tune radio to stations they are gone when I start car again after a while 

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Hi kirby530,

 

Yes, the antenna under the spoiler combines the radio antenna and alarm antenna. Condensation or water ingress causes this to fail. However, it is rarely necessary to renew it. Clean off corrosion and check thoroughly before reassembling.

Hope that helps...

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Hi,

had the same issue with our E61. Opened it as Glyn Lucas ( thanks for the tip :) ) did and found the very same issues on PWB.

Here some photos of the oxidation... 

I used PRF 6-68 "dry" cleaner and soft toothbrush and sharp pick to remove all green and grey oxitadion.

Be extra carefull there are some very narrow lines on board.

Some oxidation was also under antenna connectors, so used solderwick to remove solder and removed connectors.

Cleaned and resoldered.

Recoded keys and now it works :)

 

IMG_20170525_090253_resized_20170525_102741269.jpg

IMG_20170525_090314_resized_20170525_102742751.jpg

IMG_20170525_091732_resized_20170525_102735262.jpg

IMG_20170525_093004_resized_20170525_102736706.jpg

IMG_20170525_095241_resized_20170525_102734396.jpg

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