MAGNETI MARELLI
More Information for MAGNETI MARELLI 1AMOX00018
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Based 100% on O.E. design, Magneti Marelli oxygen sensors provide best-in-class performance and maximum service life. They are made with a combination of zirconium and yttrium oxides and other elements to form a touch base that can withstand intense conditions.

FEATURES

  • Thermal shock protection
  • Pump-reference air
  • Every sensor is 100% exhaust tested
  • Patented double laser welding


BENEFITS

  • Prevention of cracking during extreme temperature fluctuations
  • Fully submersible – will continue to function if submerged in water
  • Every sensor is tested to ensure functionality and decrease "green effect" when first applied
  • Increased durability to maintain original sensor construction
O2 Sensor Identification Guide

An OBD Scan Tool will usually identify Oxygen Sensors by the Bank Number (B1 = Bank 1) and Sensor Number (S1 = Sensor 1). Bank 1 will always contain Cylinder 1, which is located closest to the front of the engine.

Part manufacturers often use different terms than scan tools to identify sensor positions. Regardless of the vehicle's engine orientation, the right or left bank is determined by viewing the engine from the rear (opposite the drive belts).

A
Upstream Sensor (Before Converter)
B
Downstream Sensor (After Converter)
C
Left or Front Upstream Sensor (Before Converter)
D
Right or Rear Upstream Sensor (Before Converter)


Engine Bank Identification
Common O2 Sensor Contaminants

Oxygen (O2) Sensors commonly fail due to contamination. When checking or replacing an O2 Sensor, visually inspect the sensor body to determine if it has been contaminated by a faulty part or substance upstream, and correct the fault before replacing the sensor.

ANTIFREEZE POISONING
Common Causes:
  • Cracked or warped cylinder head
  • Leaking cylinder head gasket
  • Leaking intake manifold gasket
Antifreeze Poisoned O2 Sensor
Antifreeze Poisoned O2 Sensor
SILICONE POISONING
Common Causes:
  • Use of an improper silicone gasket sealant on the engine

Silicone Poisoned O2 Sensor
Silicone Poisoned O2 Sensor
CARBON BUILDUP
Common Causes:
  • Clogged air filter
  • Leaking or defective fuel injector

Carbon Buildup O2 Sensor
Carbon Buildup O2 Sensor

MAGNETI MARELLI Warranty Information:
12 Months