- G62 - Coolant Temperature Sensor (2312);
- J52 - glow plug relay (4111);
- J179 - Automatic heating time control unit (4112);
- N36 - Additional resistor of automatic starting device;
- Q6 - glow plug;
- 18 - ground point on the engine block;
- 83 - connection to "ground" in the front wiring harness on the right
