Poor radio reception

[M-A8]

Originally Posted by audifin

In my -06 4.2 TDI DAB is almost non-existent, although it does work sometimes for short periods of time. Also FM seems to be a bit poor... does the D3 have antenna amplifier? Or any other ideas?

Thanks

Hi

Amplifier and the actual connections is were I would start investigation

I think snapdragon had issues with his tv sound quality when he installed powerfull cree led drl bulbs in place of halogen drls, but dont take my word for it, I've got a very good memory but there are glitches

Also, have you got VCDS????, more likely an electronic faulty with any unit will throw a error message. Good place to start as well

[audifin]

Hi, thanks for your reply. I don't have VCDS but I have Bluetooth OBD2 module, and Torque on my Android phone didn't find any fault codes. Where is the amp located? Is there any way to test it or do I need to buy a new part and try it? Does anyone know the part number and how much do they cost?

[snapdragon]

Originally Posted by audifin

Hi, thanks for your reply. I don't have VCDS but I have Bluetooth OBD2 module.

Yes, the HSUN DRLs make my DAB radio and to a lesser extent FM have bad signal, so will change them soon. emailed HSUN but no reply.

I think these OBD scanners only find engine OBD2 fault codes, nothing is read on the 30 or so other modules.

I enclose screenshot and PDF of component locations. I think member A8L Chick replaced hers, it may be worth a search of her posts.
Whatever happened to her? - I hope she's OK.

[audifin]

Thanks Snapdragon. At least in my previous car (Honda) I was able to read and clear air conditioning fault codes with this same module, but I shall investigate further. Maybe I need to buy proper VCDS kit.

I removed the trim above rear window today and there it was...

If the amplifier is broken, will that create a fault code or is there any other way to test it? I couldn't find anything amp related by A8L Chick...

[snapdragon]

Aha, sorry, I was close - I found the thread, it was C18 radio interference suppressor suspected because rear heated screen didn't work - not sure what the outcome was. Maybe you can look for the C18 too?

[audifin]

I noticed that switching on rear window heating causes interference, so that C18 probably needs to be replaced. Is it near the amp? What is the part number? Thanks

[snapdragon]

Not sure around the window trim somewhere, there may be two.
Check the earths on the rear screen as it sounds like one is bad and so it's earthing through the supressor and when you turn the screen on there is too much resistance for such current.