E61 2010 diversity antenna wiring
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Joined: Aug 2018
Posts: 655
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From: Abbotsford, BC
My Ride: 2009 535xi Touring 6MT, 2019 i3s
Engine: N54
My key unlocking range is pathetic but at least once I replaced my amplifier it resolved my Comfort Access issues. I may try a loop of wire like you used. How is your FM radio reception?
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Joined: Aug 2020
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From: Norway
My Ride: 2010-530XD
Model Year: 2010
Engine: 3L diesel
FM and AM radio work just fine, even before I switched the diversity amplifier.
The rib cable was broken right up to the glass, so repair is impossible I think.
Works well enough with the "antenna loop" trick
The rib cable was broken right up to the glass, so repair is impossible I think.
Works well enough with the "antenna loop" trick
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Joined: Aug 2018
Posts: 655
Likes: 73
From: Abbotsford, BC
My Ride: 2009 535xi Touring 6MT, 2019 i3s
Engine: N54
It turns out that contact no. 1 that goes to the rear window is the antenna for the car keys.
Contact no. 2 goes to the AM antenna which is glued to the spoiler.
There is a break in the cable to the rear window, so I have little range on the signal from the keys.
I glued a cable in a loop inside the spoiler and plugged it into the antenna amplifier, and it gave a better signal.
I will probably have to change the rear window for it to be as good as before
Contact no. 2 goes to the AM antenna which is glued to the spoiler.
There is a break in the cable to the rear window, so I have little range on the signal from the keys.
I glued a cable in a loop inside the spoiler and plugged it into the antenna amplifier, and it gave a better signal.
I will probably have to change the rear window for it to be as good as before
Did you manage to sort this out? I have the same issue, wiring has been replaced through the tail hinge and still not working to unlock with the remote. Thank you in advance
New Members
Joined: Aug 2018
Posts: 655
Likes: 73
From: Abbotsford, BC
My Ride: 2009 535xi Touring 6MT, 2019 i3s
Engine: N54
Have you replaced the antenna amplifier? That appears to be the most-common problem when these remote issues start. I know it was my problem.
New Members
Joined: Aug 2018
Posts: 655
Likes: 73
From: Abbotsford, BC
My Ride: 2009 535xi Touring 6MT, 2019 i3s
Engine: N54
Something like this: https://www.ebay.ca/itm/284876303573...3ABFBM9Jqes-Zh is what I bought.
On the E61 it is mounted under the rear spoiler at the top of the rear hatch glass. All radio signals (including the key remotes) go through the antenna amplifier (sometimes called diversity antenna).
On the E61 it is mounted under the rear spoiler at the top of the rear hatch glass. All radio signals (including the key remotes) go through the antenna amplifier (sometimes called diversity antenna).
Last edited by kd7iwp; Mar 30, 2023 at 08:27 AM.
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Joined: Apr 2023
Posts: 22
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From: LINCOLN UK
My Ride: 520D E61 LCI and 318CI E46 CONVERTIBLE
Did you manage to sort this? i also have changed antenna and checked all wires but still no signal.
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