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Home >> Mercedes Benz >> 1997 >> E320 >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Power Seats - E55, E300, E320 & E430) >> System Tests (Front Heated Seats) >> Test 6: Driver's Heated Seat Elements Resistance

Test 6: Driver's Heated Seat Elements Resistance

WARNING: This page is about a different car, the 1999 Mercedes-Benz E55, 1998 Mercedes-Benz E430, 1998 Mercedes-Benz E320, and 1998 Mercedes-Benz E300. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect driver's seat cushion heater element harness connector. Measure resistance between terminals No. 1 and 4 at driver'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 2.6-3.4 ohms. If resistance is as specified, go to next step. If resistance is not as specified, replace driver's seat cushion heater element.
  2. Measure resistance between terminals No. 2 and 3 at driver's heated seat element. If vehicle has leather seats, resistance should be 3.8-4.5 ohms. If vehicle has cloth seats, resistance should be 2.5-3.2 ohms. If resistance is as specified, driver's heated seat elements resistance is okay at this time. If resistance is not as specified, replace driver's seat back heater element.
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