William R Sanger , TX March 25, 2018 Appliance: Bosch Microwave Oven HMC87151UC/01 Bosch Microwave Hmc87151uc/01: Bosch microwave door hinge spring broken. How to replace Choke Cover (Single). I replaced the right hinge assembly. I also had to replace the inside door plastic cover because I couldn’t remove the original without damaging it. The cover clips on and I could not get the clips to release. 15 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes