Originally Posted by Vondera

I was about to start a new thread to ask you experts a similar question. I have an ’04 A8 with 91,000 miles. I only have limited service history, and nothing definitively says that this TB service was performed. Is there any [easy] way for me to visually determine if these parts were replaced? Are there any warning signs that it needs done now? Would any dealer share with me a more complete service history?

It seems that if left undone, many experience a catastrophic failure. I do my own work, and have the tools to do it, but I am new to Audi. I don’t want to waste time and money to change something that someone could easily see is recently changed. How would I tell? Or should I suck it up and do it regardless, in order to avoid engine meltdown? Thanks!