QuestionThanks for your prompt reply.
The sound has changed, but my guess is that it is still related to the bad ground you mentioned. Now, from the right door speaker there is a loud "putt putt" sound - it sort of resembles a lawnmower or go-kart that's idling. The Wheel Works people don't think that their work was responsible for the malfunction, and I'm inclined to agree with them.
Is this the sort of problem that should be addressed by an automotive technician, or could the stereo folks at the local electronics store also handle the problem? Or does this sound like something that should go to a Mercedes dealership?
Thanks again,
Leland
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Followup To
Question -
Hello,
I have 1998 Mercedes C280 with about 92,000 miles on it. This morning I noticed that there is a high-pitched whine that is present only when the radio is turned on (so, I doubt a differential problem). The frequency goes up with acceleration and goes down when I ease off the gas or brake. What could this be?
Interestingly, this problem seems to have started after I had flat tire repair yesterday, but I can't imagine that this is related.
Thanks,
Leland
Answer -
It is engine noise, probably coming into the system from the alternator.
Check all of the vehicle grounds. It very is possible this is a bad ground for a power antenna which may or may not be located near where they were working on it.
Answer Your welcome, and I am happy to try and help you sort this out.
While you might be inclined to agree with them, it is rather signifigant that this problem 'seems to have started' only after letting them work on the vehicle and it is not uncommon [at all] for shops to say that it is not their fault in these cases. However, 'seems' is the key word, and if you are satisfied that they did not cause it, the worst that happens is you have a radio problem and you'll have to get it sorted out on your own.
On my professional opinion:
Do not go to Mercedes about this.
Do not take it to an automotive technician.
Without question, I think that any competent local Mobile Audio Shop will be able to deal with this in the most professional, safe, and cost-effective manner.
Try 'Car Audio' in the Yellow Pages, make a few calls to some shops and ask if they are proficient at resolving engine noise problems from the radio of a 1998 C280 and let them know you would like the problem resolved without replacing the system. Any reputable shop will stand behind their work for the life of the vehicle and they resolve noise problems on a daily basis. You [on your own] are the one to ultimately decide who works on your vehicle (as with any mechanic), so you can see that shopping after doing some homework can yeild great results. Lastly, big Ads do not always make great stores, but they do bring in customers. :S
Best of luck,
Jm
