Acura has a huge investment in their reliability and quality. The noise may not be something that will cause the car to breakdown or have engine failure. However, it could shorten the life of the motor or transmission.
The next time you go to dealer, ask to see the service bulletins. These are like Factory Recalls, but they are not obligated to alert the owner of the issue.
I had an S-10 that had a horrible noise. It took a while for the service bulletins to come out after about a year of complaining about it and hearing that, "It will be OK".
Eventually, (This was after the warranty ran out), the service bulletin came out about noise problems being caused by the piston in the engine. They re-designed them so the noise was gone. Since I had a recorded history of it, I did not have to pay anything for the repair.
So, ask about the Service Bulletins and make sure that there are Service Repair Orders noting your complaint.
Try to get the car to the dealer at least 3 times even if it is because, (The noise is louder) so you have a history of recognition related to the issue.
If it does not get fixed now, your paperwork and patience will hopefully be enough leverage to get it repaired.
If you are motivated to do so also write a letter to ACURA about the problem. They will more than likely help you as you have an undeniable paper trail in regards to the issue.
I hope this information helps.
Let me know how things turn out. I get alerted when posts are replied to so I will get back ASAP.
Tuesday, May 3rd, 2011 AT 12:24 AM