4Car Auto Spares
High Pressure Injector Fuel Pump For VW & Audi - 03C127026M
High Pressure Injector Fuel Pump For VW & Audi - 03C127026M
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Purpose of the Pump
The secondary air injection pump is a crucial emissions control component designed to reduce harmful exhaust emissions during cold starts. It rapidly supplies fresh air into the exhaust stream to help ignite unburned fuel, allowing the catalytic converter to reach optimal operating temperature more quickly.
Installation Location:
Mounted in the engine bay, typically near the front of the engine block or close to the exhaust manifold. It connects via hoses and an electrical plug to the engine management system.
Vehicle Compatibility
Suitable for Various 1.2 TSI & 1.4 TSI/TFSI Engines across VW, Audi, and SEAT Models
Volkswagen (VW)
VW EOS (2006–2011)
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Engine Types:
• 1.4 TSI 90kW – CAXA
• 1.4 TSI 118kW – CAVD / CTHD
VW Golf Mk5/Mk6 (2007–2014)
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Engine Types:
• 1.2 TSI – CBZA / CBZB
• 1.4 TSI 90kW – CAXA
• 1.4 TSI 118kW – CAVD / CNWA / CTHD / CTKA
VW Jetta (2006–2013)
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Engine Types:
• 1.2 TSI – CBZB
• 1.4 TSI 90kW – CAXA
• 1.4 TSI 110kW – CTHA
• 1.4 TSI 118kW – CAVD
VW Passat B6/B7 (2008–2013)
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Engine Types:
• 1.4 TSI 90kW – CAXA
• 1.4 TSI 110kW – CDGA
• 1.4 TSI 118kW – CTHD
VW Scirocco (2009–2013)
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Engine Type:
• 1.4 TSI (various output levels)
VW Tiguan (2008–2013)
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Engine Type:
• 1.4 TSI
VW Touran (2009–2013)
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Engine Type:
• 1.4 TSI
VW Polo / Polo GTI (2010–2014)
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Engine Types:
• 1.2 TSI
• 1.4 TSI 132kW – CAVE / CTHE
Audi
Audi A3 (2008–2013)
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Engine Types:
• 1.2 TSI
• 1.4 TFSI 92kW – CAXC / CMSA
Audi A1 (2011–2014)
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Engine Types:
• 1.2 TSI
• 1.4 TFSI – 90kW / 136kW
SEAT
SEAT Altea (2007–2013)
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Engine Types:
• 1.2 TSI
• 1.4 TSI 92kW
SEAT Leon (2006–2013)
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Engine Types:
• 1.2 TSI
• 1.4 TSI 92kW
SEAT Ibiza / Ibiza ST (2009–2013)
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Engine Types:
• 1.2 TSI
• 1.4 TSI – 110kW / 132kW
• 1.4 TSI 90kW – CAXA
OEM Part Number References
This secondary air pump is interchangeable with the following genuine part numbers:
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03C 127 026 E
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03C 127 026 G
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03C 127 026 L
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03C 127 026 M
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03C 127 026 N
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03C 127 026 P
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03C 127 026 Q
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03C 127 026 J
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03C 127 026 C
Additional Notes
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Always confirm part compatibility using your VIN or by matching the OEM number on your existing pump.
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Installation by a qualified technician is recommended to ensure proper function and emission compliance.
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