1989 500SEL - Radio question

S

sailor

Guest
Hello All
I recently had cause to withdrawl and diconnect my radio to get at a faulty hazard warning switch which was proving impossible to pull forward in-situ.

However, after re-assemble and re-connection of the battery when I came to switch the radio ON the screen displayed the word CAR. This flashed 5/6 times before becoming stable and was then accompanied by a sequencial display next to CAR of 0, I, and four small marks I couldn't understand.

With nothing to lose I pressed one of the preselect channel buttons and the radio sprang into life. I took the car out for a road test, radio switched ON, and was immediately aware ofa whinning interference which followed the engine rev speed.

My question, how can I cure this. There is no User Manual for the radio.

Regards
Jeff
 

Avantgarde Automotive, Mercedes-Benz and SLR McLaren specialists. Service, repairs, diagnosis and motorsport preparation.
Unit 14 Hither Green Trading Estate, Clevedon, Somerset, BS21 6XU Tel: 01275 217270 Email:steve@avantgarde-automotive.co.uk
www.avantgarde-automotive.co.uk
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