1. Measure the gap and height between the front or rear door and the body.
2. If not as specified, loosen the front or rear door hinge installation bolts or the door lock striker installation screws, and reposition the door.
Clearance
a: 2.5-4.5 mm {0.10-0.18 in} b: -0.8-1.2 mm {-0.03-0.05 in} c: -0.3-1.7 mm {-0.01-0.07 in} d: -1.0-1.0 mm {-0.04-0.04 in} e: -0.5-1.5 mm {-0.02-0.06 in}

3. Tighten the bolts or screws.
Rear door removal/installation
Front door glass removal/installationMazda 6 Service Manual: Precautions before welding
Vehicles have various electrical parts. To protect the parts from excessive
current generated when welding, be sure to perform the following procedure.
1. Turn the ignition switch to the LOCK position.
2. Disconnect the battery cables.
3. Securely connect the welding machine to the ground nea ...
Mazda 6 Service Manual: Intermittent concern troubleshooting
Vibration Method
If malfunction occurs or becomes worse while driving on a rough road or
when engine is vibrating, perform the steps below.
Note
There are several reasons why vehicle or engine vibration could
cause an electrical malfunction. Some of the things to check for:
- ...