srikrishanan

My 2005 model GCC specs S8 making whinning noise occasionaly like something is screaching (like belt screach). It is sometime on idle also and sometime while driving so im little lost to what to check and how to start? Its frequency is like once in a 3-4 days i hear this whinning. I checked all belts and evenh put some wd40 on fan belts but its still happening sometime. Any valuable feedback, suggesytyion can get me started. Appreciate your help folks. cheers.

1300 for just oil and filters change service. Which service was it? And which workshop your are reffering?