jlegelis

We finally had our first deep freeze here in New England. My E320 is running great, but on the way home from work I noticed the door locks wouldn't respond. I could hear the pump cycling quickly, but the door locks barely budged. After two hours in my warm garage everything was back to normal.

I'm guessing a leak in the pneumatic lines or coupling ... are there any common failure points? If not, how would I diagnose where the problem is located?

Thanks!