- Engine crankcase ventilation ZIL-131
- Contactless ignition system ZIL-131
- The design of the cardan ZIL-131
- Steering gear adjustment ZIL-131
- Maintenance of bridges ZIL-131
- Adjusting the handbrake ZIL-131
- Wheel brake adjustment ZIL-131
- Brake system ZIL-131
- Checking the oil level ZIL-131
- Repair of the power steering pump ZIL-131
- The design of the transfer case ZIL-131
- Engine cooling ZIL-131
- Adjustment of pivots and hubs ZIL-131
- The design of the steering ZIL-131
- Adjustment of gears of reducers ZIL-131