Question about 2003 Audi A4 Cabriolet
CD works fine but no radio reception (or very poor with lots of hiss). Wasted £200 replacing both boosters in the boot lid but problem persists. If I touch the coax inner core with metal object then reception is perfect (which is why I assumed it was the boosters) but plugged into booster it does not work. I assume that there is a break in cable so no power to booster but central coax is fine when I act as antenna (if that makes sense). I assume that part of teh coax is a power supply and its that which is bust - can anyone confirm
Any suggestions apart from paying huge sums for Audi to re-wire.
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Posted on Jan 02, 2017
The aerial is in the boot lid. A wire runs down through a thick corrugated tube. Many bends over time fatigue and break the wire. I simply found the break and repaired the wire , coax wire, repositioned the wire fine! Audi do a replacement around £100 that goes all th way to the radio!
NB handle in boot lining has a hidden screw that must be removed to pop off lining.
Posted on Oct 11, 2008
SOURCE: bad brake booster
If you know for sure that the booster has failed, you need to unbolt the master cylinder from it, (sometimes you can move it away enough to not even disconnect lines.) Then unbolt the booster from the firewall, disconnect the pedal linkage if connected to booster. Remove & replace booster assembly and everything else you you took off. If you didn't have to remove master cyl you are done. If removed, bleed master before putting back into service!
Posted on Jan 09, 2009
do you get any stations, even weak stations on the AM band? If not you have a bad radio and need replacement. Try having someone hold the antenna as you scan the AM band.
Posted on Apr 01, 2009
It maybe, I don`t know the vehicle personally but on Trucks and Buses, when this occurs, it usually points to the master cylinder piston seals which moves in and out as the foot pedal is operated. Does the hiss alter as the pedal is pushed down?? Does the hiss reduce or increase as the pedal is pushed down?? If it does, I think you`ll find that it`s this air seal between the piston and cylinder that`s failing and not the servo. Whether you car works the same way, I don`t know but I presume it must. Ian
Posted on Aug 06, 2009
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