Mazda 6 Service Manual: No.4 hard to start/long crank/erratic start/erratic crank

No.3 will not crank

No.5 engine stalls-after start/at idle

Other materials:

Mazda 6 Service Manual: Trunk side trim removal/installation
4SD 1. Remove the trunk end trim. 2. Remove the fasteners, then remove the trunk side trim. 3. Install in the reverse order of removal. 5HB 1. Remove the trunk end trim. 2. Remove the trunk side upper trim. 3. Remove the cargo hooks. 4. Remove the fasteners. 5. Pull the trunk side trim ...

Mazda 6 Service Manual: Fuse Panel Description
Fuse block (Engine compartment)           *Some models. Fuse block (Left side)         *Some models. ...