heated rear screen interferes with radio signal

[Woof25]

With the colder weather the rear screen heater comes on automatically below 10c I find this causes distortion of the radio signal with a sibilant hiss which dissapears when rear heater turned off any one have pics of how to access aeral etc and any suggested remedies to this problem other than an external aerial which our cars were not meant to have, although I suppose a shark fin style one would not be too noticeble if all else fails

I know there are many knowledgable members out there if anyone close to me I would be happy to visit or host a cream teas perhaps

Mike

[suffolk boy]

shark fin is for the satnav.the signal amps are under the trim next to the rear screen on the drivers side might be worth checking the connections etc

[Woof25]

Thanks for correcting me on the sharks fin function phil any pics of the said aerials and amplifiers ? dont want to make the problem any worse than it is. So the panel is on drivers side above rear seat then ? is it held in with clips or screws ? you can see Im a novice at this, plenums I can talk for england lol but little else

Mike

[suffolk boy]

the panel pulls of i remember only ever removed one on a 190.might just a loose connection.but other than that i think we need some one who has the same problem.

[suffolk boy]

right had a poke round.found someone who had the same problem.the radio anteena is the 3 bands at the top of the rear screen look for any breaks in this.however this person fouund it was just corroded connectors where the antenna plugs clip onto the rear screen gently remove them and spray some contact cleaner on them .they clip on btw

[Parker]

Above info is correct and as silly as it seems a really good clean of the interior rear screen can improve the signal, try it no harm done

[haydenukhayden]

i agree my antenna was broken and I had the same problem also take the passenger side trim next to the rear screen off and check that the earths aren't corroded DO NOT wiggle the connectors on the screen as they are very brittle and tend to pop off very easily and there a beast to get back on properly Good luck!!P.s do you have hid ballast fitted?as they create huge interference if you do pm me and i'll let you know how to cure it

[Woof25]

Thanks guys you have all been very helpful now if its nice day tomorrow i shall see what can be seen and certainly clean the inside of window which I must admit tends to get over looked

Thanks to you all

Mike