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Home >> Mercedes Benz >> 1998 >> CLK320 >> Repair and Diagnosis >> Accessories & Equipment >> Seats >> Power Seats - C43, C230 & C280 >> System Tests (Heated Seats) >> Test 8: Passenger's Heated Seat Element Resistance

Test 8: Passenger's Heated Seat Element Resistance

  1. Disconnect passenger's seat cushion heater element harness connector. Measure resistance between terminals No. 1 and 2 at passenger's heated seat element. If vehicle has leather seats, resistance should be 3.9-4.7 ohms. If vehicle has cloth seats, resistance should be 2.5-3.0 ohms. If resistance is as specified, go to next step. If resistance is not as specified, replace passenger's seat cushion heater element.
  2. Measure resistance between terminals No. 3 and 4 at passenger's heated seat back element. If vehicle has leather seats, resistance should be 3.8-4.5 ohms. If vehicle has cloth seats, resistance should be 2.5-3.0 ohms. If resistance is as specified, passenger's heated seat back element resistance is okay at this time. If resistance is not as specified, replace passenger's seat back heater element.
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