Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLKSWAGEN2008JETTA GLI (1K2) L4-2.0L TURBO (BPY)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMSERVICE AND REPAIR
2008 Volkswagen Jetta GLI (1K2) L4-2.0L Turbo (BPY)
Ignition System: Service and Repair
2008 Volkswagen Jetta GLI (1K2) L4-2.0L Turbo (BPY)SECTION Service and Repair
Ignition Components Overview
1 Knock Sensor (KS) 1 (G61)
• Contacts are gold plated.
2 Bolt, 20 Nm
• Tightening specification affects the function of the KS.
3 Ignition Coil with Power Output Stage (N70), (N127), (N291), (N292)
• Removing and installing, refer to => [ Ignition Coils with Power Output Stages ] Service and Repair.
4 Spark Plug, 25 Nm
• Type and electrode gap, refer to => [ Technical Data ] Technical Data.
• Remove and install using the spark plug removal tool (3122B).
5 Bolt, 10 Nm
6 Camshaft Position (CMP) Sensor (G40)
• Contacts are gold plated.
7 O-ring
• Replace if damaged.
8 Knock Sensor (KS) 2 (G66)
• Contacts are gold plated.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.