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14.1 Heated Seats (HS)   >   11 Diagnosis - Function Test

Test step/Test sequence Test condition Nominal value Possible cause/Remedy 1) 1.0 Seat heating stage I Ignition: ON Press front of left front seat heater switch (S51/1) or right front seat heater switch (S51/2) respectively. Switch indicator lamp for stage I lights up. Seat cushion and backrest cushion warm up. 23 1.0, 2.0, 5.0, 7.0, 8.0 23 3.0, 4.0 2.0 Seat heating stage II Ignition: ON Press rear of left front seat heater switch (S51/1) or right front seat heater switch (S51/2) respectively. Switch indicator lamp for stage II lights up. Seat cushion and backrest cushion warm up noticeable more than in stage I 23 1.0, 2.0, 5.0, 7.0, 8.0 23 3.0, 4.0 3.0 Illumination of seat heater switches Parking lamps switched on. Switch symbol is illuminated. 23 6.0, 9.0 1) Observe Preparation for Test, see 22.