Inspect your spark plugs as described in section 7 and replace them if necessary. Also check all ignition wiring and components to be sure they are not cracked, worn or damaged in any way.
Heater Unit: Repair procedures
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Recover the refrigerant with a recovery/ recycling/ charging station.
3.
When the engine is cool, drain the engine coola ...
Driver Airbag (DAB) Module and Clock Spring: Components and Components Location
Components
1. Driver Airbag (DAB)2. Steering Wheel3. Clock Spring
...