I elected to wait for transmission service. Bill explained that the cost of repair on an old Mercedes transmission was prohibitive. I want to keep it running right as long as I can. Good news when he finished there was a very little metal on the magnets in the pan and the transmission level was absolutely full just the way they left it the last time they serviced it. Speedy turnaround, pleasant experience. While I was waiting, I wandered about and met the owners son at the auto repair shop. He was extremely helpful explaining the nature of synthetic engine oils for maximum life providing prices for a brake job tire balance rotation, servicing the engine, annual inspection, etc. All around a very entertaining cost-effective solution to my auto maintenance issues.