Front heated seats (HS), diagnosis, operational check - AD91.30-P-3000A
MODEL 170, 202 as of 1.9.95, 208, 210 up to 30.6.99 with CODE (873) Electrically heated left and right front seats
MODEL 210 as of 1.7.99 with CODE (873) Electrically heated left and right front seats except CODE (401a) Front seat ventilation
| Front heated seats (HS) diagnosis, previous knowledge | AD91.30-P-2000A | ||
| Function check | |||
| Scope of test | Operation/Requirement | Specified value | Possible cause/Remedy |
| 1 | Ignition: ON | 1 Light-emitting diode in switch comes on. | AD91.30-P-6000-01A |
| Heated seats | Operate left front heated seat (HS) switch (N25/5s1) or right front heated seat (HS) switch (N25/5s2) upwards | Seat cushion and backrest heater element heat up. | AD91.30-P-6000-05A |
| Stage I | AD91.30-P-6000-07A | ||
| 2 | Ignition: ON | 2 LEDs on switch come on. | AD91.30-P-6000-01A |
| Heated seats | operate left front heated seat (HS) switch (N25/5s1) or right front heated seat (HS) switch (N25/5s2) upwards | Seat cushion and backrest heat up more than in stage I. | AD91.30-P-6000-05A |
| Stage II | AD91.30-P-6000-07A | ||
| 3 | Ignition: ON | Stage I or stage II LEDs come on brightly. | AD91.30-P-6000-01A |
| Dimming of indicator | Heated seats switched on | LEDs become darker (dimmed) together with the push-button illumination. | AD91.30-P-6000-02A |
| lamps, stage I or II | Side lights switched on | AD91.30-P-6000-03A | |
| AD91.30-P-6000-04A |