I brought my Mercedes ML350 in for a nasty squealing noise on cold start that the dealership failed to diagnose after having the car for a full day and trying to sell me expensive work. Langley Brake Shop quickly traced it to the secondary air pump, replaced it, and the problem is completely gone. They had already done tensioner and V-belt work for me at a very fair price, so this just confirmed they know what they are doing.
Gurpreet and Harry are very friendly and straightforward to deal with. They are very transparent about their labor cost and the parts they source, and they clearly take pride in the quality of their work and their reputation. They even allowed me to bring in genuine OEM parts I had bought from RockAuto in the US, which is a huge plus compared to many franchised repair shops that refuse customer-supplied parts. When I called to book the appointment, they proactively offered me a free loaner car while mine was in the shop, which I honestly did not expect from an independent shop. I drive up from Seattle to see them and it still makes sense for me to cross the border for service. I trust this shop and will keep bringing my ML350 here for future work.