v1t0
New Member
Posts: 3
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Post by v1t0 on Jul 4, 2023 19:27:52 GMT
Hi, i’m getting this error B126E13, connection between radio and antenna amplifier 2.
Is this refering to Aerial booster part number: 8v5035225
Is it possible that this is the reason why my center dash speaker is making crackling ( fire starting type of noise ) ?
Is it possible that if its aerial booster that its because of fuses?
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Post by dv52 (Australia) on Jul 4, 2023 23:29:28 GMT
The short answer is YES - intermittent problems with faulty aerials can manifest as speaker crackling (because the primary signal to the radio/amplifier is momentarily lost)
Aerial systems on MQB platform cars varies with the country of sale (because the allocation of the frequency spectrum and the protocol modes for radio transmission differs). Nevertheless, according to my database for Rest-of-world model Audi A3 8V cars, antenna amplifier 2 is called R111 in the wiring diagram.
Again, according to my information: - 3-door models, 5-door models -The aerial amplifier 2 - R111- is located on the rear lid (bottom right)
- Saloon - The aerial amplifier 2 - R111- is located behind D-pillar trim (left-side) at top of D-pillar
- Cabriolet - The aerial amplifier 2 - R111- is located at main mounting for the convertible roof (right-side).
However and notwithstanding that often the cause for this error is a faulty aerial unit because of water ingress behind the tailgate seal - don't forget that another cause can be a problem associated with the aerial cable and/or connections
Don
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v1t0
New Member
Posts: 3
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Post by v1t0 on Jul 5, 2023 8:04:56 GMT
Thank you! i have a Audi a3 8va Sportback from 2014, Germany.
I can’t find the serial for R111, is that the one I posted above or? How does it look?
The speaker ( center dash ) is happening even when I listen to bluetooth, I disconnected it ( the speaker ) and now its all good
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Post by dv52 (Australia) on Jul 5, 2023 23:22:05 GMT
v1t0 : I'm not sure about the part number. As I have already said, the actual arrangement depends on both the country and the model radio in the MMI. But again according to the wiring diagrams - there are generally 2 x aerial amplifiers for the AM and FM spectrum on these MMIs (DAB has another aerial amplifier): The repair manual for your version car-body says this:
Notice that R24 has 2 x cables and R111 has only ONE cable
So 8v5035225 looks like this:
And 8v5035225D looks like this:
My guess is that 8v5035225 is the correct part number
Don
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