Signature Independent has been my BMW go-to service shop almost as long as I have owned the car. They are polite, explain everything clearly, and even called an Uber when they had to keep the car overnight. This is where i will continue to come for my BMW 550i service.
Initial Installation of the Tachometer in my '88 325 was performed , it stopped working after a week - I brought it back they remedied it under warranty at no cost and while the car was there I had them remove an aftermarket stereo and put back in a stock radio I acquired and they installed it and its also working perfectly.
I use signature independent on a regular basis to do work on older BMWs as I am a specialty independent dealer in Kirkland - Wild About Cars Garage - They are always able to solve the issues and get the work done quickly and their rates are very reasonable - I refer all of my customers to them rather than the local BMW dealership !!
One more old school BMW sorted by Signature Independent - 88 BMW 325 stopped running and they diagnosed and sorted it out in short order - it was a tricky one but they got it done and its back up and running great once again!
Working more on the 88 BMW 325 and found a few more items that needed sorting so back to Signature Independent and they turned it around in short order and did a great job to help me get my restoration on this one completed - It was yet another complex item with the Tachometer in the gauge cluster and they managed to source one for a great deal and get it installed and up and running properly.
Well run organization. They represent value, services that you need for a high end vehicle at reasonable prices. Nice waiting lounge Informed service staff. Try them Out if you own BMW Mercedes Audi etc etc.