DELPHI Lambda zonde ES20678-12B1

Compatible with VW GOLF V (1K1) , VW GOLF V Variant (1K5) , VW GOLF PLUS V (5M1, 521) Show more info
This DELPHI Lambda zonde is designed for optimal engine performance and fuel efficiency. Ensure your vehicle's emissions are within legal limits with this reliable component.
36.89 EUR
inc. VAT 21%
In stock 4
Delivery 1 day (15.05.2026)
PN ES20678-12B1
Make DELPHI
EAN 5012759545607

The DELPHI Lambda zonde, part number ES20678-12B1, is a critical sensor for modern engine management systems. It measures the amount of oxygen in the exhaust gases, providing vital data to the engine control unit (ECU). By accurately monitoring oxygen levels, the Lambda zonde allows the ECU to precisely adjust the air-fuel mixture. This precise control is essential for maximizing combustion efficiency, reducing harmful emissions, and improving overall fuel economy. A properly functioning Lambda zonde contributes significantly to your vehicle's environmental compliance and running costs. Crafted with DELPHI's commitment to quality, this Lambda zonde is built to withstand the harsh conditions of the exhaust system. Its robust construction ensures durability and consistent performance over its service life. Replacing a faulty Lambda zonde can resolve issues such as poor fuel economy, rough idling, and check engine lights.

  • Direct fit for specified applications
  • Ensures accurate air-fuel ratio control
  • Optimizes fuel efficiency
  • Reduces harmful exhaust emissions
  • Enhances engine performance and drivability
  • Durable construction for long service life
  • Meets or exceeds OE specifications
  • Part of DELPHI's comprehensive engine management range
Cable length [mm]
500
Oxygen sensor
Planar type lambda sensor
Oxygen sensor
with heating
  • VW
    • GOLF V (1K1)
      • 1.4 TSI (90kW/122PS)
    • GOLF V Variant (1K5)
      • 1.4 TSI (90kW/122PS)
    • GOLF PLUS V (5M1, 521)
      • 1.4 TSI (90kW/122PS)
    • JETTA III (1K2)
      • 1.4 TSI (90kW/122PS)
    • PASSAT B6 Variant (3C5)
      • 1.4 TSI (90kW/122PS)
    • PASSAT B6 (3C2)
      • 1.4 TSI (90kW/122PS)
    • EOS (1F7, 1F8)
      • 1.4 TSI (90kW/122PS)
    • GOLF VI Variant (AJ5)
      • 1.4 TSI (90kW/122PS)
    • GOLF VAN VI Variant (AJ5)
      • 1.4 TSi (90kW/122PS)
  • SEAT
    • ALTEA (5P1)
      • 1.4 TSI (92kW/125PS)
    • ALTEA XL (5P5, 5P8)
      • 1.4 TSI (92kW/125PS)
    • LEON (1P1)
      • 1.4 TSI (92kW/125PS)
    • TOLEDO III (5P2)
      • 1.4 TSI (92kW/125PS)
  • AUDI
    • A3 (8P1)
      • 1.4 TFSI (92kW/125PS)
    • A3 Sportback (8PA)
      • 1.4 TFSI (92kW/125PS)
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