Seat heaters — inspection and replacement of the element

1. Some European models are equipped with electric heating elements in the front seats. In the event of a malfunction, first check the fuses and fuse links.

2. Disconnect the seat heater, turn it off and check its conductivity on the clamps with a tester. In switch position ON (On), between clamps «b» (green wire) And «c» (blue wire), there must be a contact. If not, replace the switch.



3. Separate the harness connectors under the seat. Check seat connectors for continuity. There must be continuity between the terminals «W» on 2-pole and 4-pole connectors, and between terminals «IN». If not, heater (or wiring) the seats are wrong.



4. Check the seat back heater connector. There must be continuity between the clamp «Y» on single-pole connector and clip «IN» on a four-pole connector. If not, the heater or seat back wiring is faulty.



5. Heating elements can only be replaced completely with the seat or backrest, depending on how equipped.