YES! You can walk in. I have used them several times for parts - '70 220D & '80 240D. They were always good to give me the best part available. I could go into the field to pick parts, but they want remove them. They had some bad experienc of people "tearing out the parts they wanted" and leaving more damage than they needed to. When purchasing parts, they allowed me to see several to select the best and they maintained good milage records of the cars when they are brought in. They also do some work in relation to the sales, such as engine replacment. I liked them, never had a problem and would recommend them.
Sharjah03