C 280 (203.054) V6-3.0L (272.940) (2006)
Voltage-free insulated O2 sensors are used.
The active sensor ceramic consists of a gas permeable ceramic body made of zirconium dioxide. A protective tube with several slots protects the ceramic
body from mechanical stresses and from temperature jumps.
They are connected electrically by means of a 4-pin connector.
Advantages of planar sensor compared to finger sensor:
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Stable control characteristic
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Reduced overall size
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Quick start (control readiness < 10 s)
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Reduced heating capacity at operating temperature(< 7 W)
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Increased temperature resistance.