m3530dsport

E61 no radio signal

24 posts in this topic

Hi

The other day had the radio on,the signal ok,then put the heated rear screen on,there were a lot on interference.switch the rear screen off,the interference went,the next morning no radio signal fm or am.the remote control works etc..there's no water ingress anywhere,like I say just the signal really very poor,or none at all.thanks scott

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A well known problem on the E60/E61. Theres a unit behind the third brake light called the "diversity amplifier", this has broken down. Change this at a cost of around £100 and problem sorted, pretty easy to change too.

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Blood is correct about the diversity amplifier.

 

However, I have worked on a forum members E61 with this fault and it turned out to be the coax cable that had melted just inside the car, I suspect that the constant opening and closing of the tailgate had deteriorated the feed to the heated screen causing a high resistance and clearly a fair bit of heat. This had melted through the coax for the feed to the diversity amplifier and the tube feeding the window washer.

 

Its a bit of a pain in the bottom but these wires and pipe are accessible by removing the roof speakers. You need to remove the channels in the hinge to feed new wire in aswell.

 

Good luck

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I had a similar issue.  Radio would dissapear when the heated screen was on.  It did this for about a week and the problem went away.  That was about 3 months ago.  Now my radio reception is just poor all the time.  If I go to "all station" I can only see 1 or 2 there and when I select them its rubbish.

 

An Independant BMW garage has told me that its probably the rear screen - there are three lines of the heated section not working...  Not sure whether to change that or the diversity first...

 

How easy is it to get to the diversity and change myself?

 

Thanks

Paul

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I had a similar issue.  Radio would dissapear when the heated screen was on.  It did this for about a week and the problem went away.  That was about 3 months ago.  Now my radio reception is just poor all the time.  If I go to "all station" I can only see 1 or 2 there and when I select them its rubbish.

 

An Independant BMW garage has told me that its probably the rear screen - there are three lines of the heated section not working...  Not sure whether to change that or the diversity first...

 

How easy is it to get to the diversity and change myself?

 

Thanks

Paul

 

 

I had this problem on a 2003 E60 and the rear screen had to be changed.

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I am not too fussed about the lines on the heated screen - just the radio reception...  do you think its prob still the screen that needs changed?

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Bobs, E61 would pick up the occasional signal in very strong reception areas. changed all the melted bits..........all great now Screen wasn't required but that wouldn't account for the lines not working.

Edited by Cambell

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On 12 March 2013 at 7:18 AM, Cambell said:

Blood is correct about the diversity amplifier.

 

However, I have worked on a forum members E61 with this fault and it turned out to be the coax cable that had melted just inside the car, I suspect that the constant opening and closing of the tailgate had deteriorated the feed to the heated screen causing a high resistance and clearly a fair bit of heat. This had melted through the coax for the feed to the diversity amplifier and the tube feeding the window washer.

 

Its a bit of a pain in the bottom but these wires and pipe are accessible by removing the roof speakers. You need to remove the channels in the hinge to feed new wire in aswell.

 

Good luck

 

Hi had this on my E61, heated screen wire melted washer pipe, I cut the coax so it's longer, as I made the heated screen wire and washer tube longer. But now my radio is not great, anything I can do? Heated scream now works, I've brought some more coax, thicker then the original, would that be better?? Hardly picking up much on the all stations part of the radio 

thanks 

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On 13/03/2013 at 6:08 AM, BLooD said:

A well known problem on the E60/E61. Theres a unit behind the third brake light called the "diversity amplifier", this has broken down. Change this at a cost of around £100 and problem sorted, pretty easy to change too.

Were can I find this on 520D tourer model  my reception is poor over all stations on any band fm/am 

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Can you not just buy a separate aerial and run that to windscreen somewhere to save all this effort? anybody tried this?

Sent from my iPhone using Tapatalk

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Iv just bought a 520d tourer and noticed this issue were can I find this amplifier if any one can give me some advice

It's 2007 estate type I'd be very greatfull cd works fine. Thanks

Sent from my D6603 using Tapatalk

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Think I'd ratherjust get it fixed personal preference but I'm sure it's an option

Sent from my D6603 using Tapatalk

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Hi ,

Ive got the poor FM reception issue and this also affects the retrofitted by BMW , DAB radio .

Took car to local indy as my local stealer (brentford ) is the most expensive ? in the country ! . 

They checked the diversity antenna but there must be more checks that can be made . Is there a some antenna booster that can be fitted retrospectively to enhance reception .

Any ideas or suggestions welcome , thank you 

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This chap's video should help you with the diversity antenna... although it states E91, it'll work just as well for E61.

 

 

 

This one is E61 specific although in Czech.... just look at the pics if you don't speak the lingo :P

 

 

Edited by HandyAndy_UK

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Many thanks for replying Andy ,

 

As i understand it , are there other problems associated with a faulty diversity antenna because the remote locking works fine . There is a later COM box retrofitted but it seemed fine a while back so wondering if this could cause issues because although it works , the car brain does not recognize this as it was not proper to the car but coded in with the better Idrive computer , which the car brain is happy with . Perhaps a bench test of sorts ?

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On the E60 there are 4 FM band aerials incorparated in the rear glass. I'm wondering if it's the same with the E61. I have problem with one radio station. It is weak (ok in another vehicle) and sometimes the signal is lost when you switch on the rear demister. I need to repair one of the stripes and the check the suppressor.

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Hi Jake ,

 

Thanks for replying to my other ' high-drain battery nightmare ' and this thread . 

I seem to get static and hiss at varying intervals . LBC can get hissy and crackly at times but Absolute sounds ok as does Classic FM . I will check reception when the rear demister is switched on . I do know that the E60/61 demisters are really feeble and can time to clear the rear screen as does the woefully weak heating system > My brother also has an E60 and he complains that he is at work by the time the car is warm !

 

Thank you ,

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On 08/02/2017 at 8:40 AM, kjb1 said:

Can you not just buy a separate aerial and run that to windscreen somewhere to save all this effort? anybody tried this?

Sent from my iPhone using Tapatalk

 

I did this today (E61), radio stopped working about 6 months ago, finally got around to looking at it today. Diversity module was dry, central locking still working. Pulled coax and associate cables on left side and they were in tip top condition. I called BMW expecting to buy a new module but when they told me a diversity module is now £271 I went straight back out to look again and glad I did! 

 

I stuck a small copper wire into the end of the coax cable, coat hanger style, and hey presto perfect radio signal. The problem was the socket on the diversity module. I went to Halfords and bought an autoleads aerial for £3.99, soldered a piece of small gauge copper wire to the antenna (cut off all other cables) then drilled a small hole in the outer plastic box of diversity module and fed the other end through. Soldered on a conductor (used the core of the auto lead cable), pushed this into the OEM coax connector and taped it all up. Worked a treat! Have attached pictures for a better idea.

 

I would suggest if your central locking works but no radio signal then first unplug coax and jam a bit if wire in before doing anything else, including pulling wires to check for damage.  Might save time and/or money.  

 

The beauty with the £3.99 autoleads aerial is that it's flat and by pure chance it fits exactly in front of the diversity module under the spoiler so nice and clean too.

DSC_0051.JPG

DSC_0052.JPG

DSC_0053.JPG

Edited by davmoly
Adding ref to E61

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the coax had pulled out of the plug on mine and the outer was also shorting the single, if it was getting any at all.  Remade the connection and perfect afterwards.  Lots of wires brake in the tail gate hinged so could even be a power failure to the diversity unit, or a part thereof.  Worth while checking all the wires on all four hinges if you're going in there

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I did this today (E61), radio stopped working about 6 months ago, finally got around to looking at it today. Diversity module was dry, central locking still working. Pulled coax and associate cables on left side and they were in tip top condition. I called BMW expecting to buy a new module but when they told me a diversity module is now £271 I went straight back out to look again and glad I did! 

 

I stuck a small copper wire into the end of the coax cable, coat hanger style, and hey presto perfect radio signal. The problem was the socket on the diversity module. I went to Halfords and bought an autoleads aerial for £3.99, soldered a piece of small gauge copper wire to the antenna (cut off all other cables) then drilled a small hole in the outer plastic box of diversity module and fed the other end through. Soldered on a conductor (used the core of the auto lead cable), pushed this into the OEM coax connector and taped it all up. Worked a treat! Have attached pictures for a better idea.

 

I would suggest if your central locking works but no radio signal then first unplug coax and jam a bit if wire in before doing anything else, including pulling wires to check for damage.  Might save time and/or money.  

 

The beauty with the £3.99 autoleads aerial is that it's flat and by pure chance it fits exactly in front of the diversity module under the spoiler so nice and clean too.

DSC_0051.thumb.JPG.fd056f033f2b65c9c99ef6b4432adbcd.JPG

DSC_0052.thumb.JPG.1a5b82dd955f396de41333431aa4fd1d.JPG

DSC_0053.thumb.JPG.8a08220d59e4c573b316e86aca6ddd60.JPG

 

just to confirm, did you lay an aerial flat on its side under there where spoiler sits to confirm??

 

 

Sent from my iPhone using Tapatalk

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The picture shows the aerial, it's flat and designed to be stuck to a windscreen. I removed the amplifier (plastic box) and the cables because they're not required.  This just left the flat aerial and then I soldered on a longer wire to reach through into the safety of the plastic box surrounding the diversity module. The aerial itself is stuck down just in front of the protective box and provides a very strong clear signal.

 

Trying a new plug is definitely worth it but unfortunately it didn't work on mine and there was no signal unless I bypassed the socket on the diversity module. I didn't want to risk damaging the rest of the module by trying to repair the socket so this fix was less risky and also cheap and easy.

333856.jpg

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THis is great guys , so much new info and thanks to all the chaps that made these contributions . When i get the time , i will pop over to my indy and ask them to learn something from the forums and go easy on my battered wallet !

 

Thank you all

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Ok, so update after driving a couple of hundred miles today, new aerial is picking up local stations but longer range is dodgy, or no signal in some cases, so it will need amplification and I guess this is what the diversity module adds to the OEM aerial. I don't think the socket is serviceable on the module itself but that seems to be the root of my particular problem. If it's not then I might try to bypass the socket because I don't really won't an aftermarket amplified aerial because they are fugly. Also don't really want to pay £271 for a new diversity module but will see where it goes next few days.

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So I bit the bullet and picked up a used diversity module on eBay, fitted and still no joy, so went back to the harness on the right hinge (left set) and turns out I missed a wire when fixing the broken ones first time around. I guess it must have been ready to split (purple/ white is radio) then it probably went when I put the hinge guides back on (have now removed them permanently). Very happy the radio is working but gutted at spending the money on the used module, will have to resell on eBay, or keep as future spare.

 

So in summary if radio not working this is the process I would follow to avoid unnecessary cost or time spent:

1. Check all fuses related to audio system, replace if necessary (check central locking fuses if also not working).

2. If fuses are fine and central locking is working then check fakra plug on end of coax is seated properly. If not then replace plug and check again.

3. If radio still not working then check wiring loom to diversity module on right hinge (left side wiring).

4a. If wires are fine and central locking also not working then replace diversity module.

4b. If central locking is working then check coax cable for damage, this is left hinge (right side wiring). 

5. If coax damaged then replace, or aftermarket £4 autoleads seems to work just fine as an alternative.

6. If none of the above then cry, get yourself together and sell the car :wink:

 

There are good guides already online for repairing wiring and coax, just Google. Hope this helps someone else with similar problems.

 

FYI, when I fixed the wiring loom on right hinge, central locking didn't work because the fuse blew, I guess on the diversity  (5 amp, fuse 59, trunk), so always worth a second check of fuses before splashing out on a new diversity module.

Edited by davmoly
Extra info and fuse number

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