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 MANUALSAUDI2018A5 QUATTRO PRESTIGE, 2D CONVERTIBLEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 45 (IGNITION SYSTEM (SERVICING [CVKB,DBPA,CWNA,CVLA,DEMA,DHDA,DKUA])28 IGNITION SYSTEMIGNITION SYSTEMOVERVIEW - IGNITION SYSTEM
2018 Audi A5 Quattro Prestige, 2D Convertible
Overview - Ignition System
2018 Audi A5 Quattro Prestige, 2D ConvertibleSECTION Overview - Ignition System
WARNING: This page is about a different car, the 2020 Audi A4, 2019 Audi A4, 2018 Audi A4, and 2017 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
- Bolt
- 8 Nm + 90°
- Always replace after removing.
- The tightening specifications affect function of the knock sensor
- Knock Sensor 1 -G61-
- Removing and installing. Refer to KNOCK SENSOR 1 -G61- , REMOVING AND INSTALLING .
- Spark Plug
- 30 Nm
- Spark Plug Connectors
- Ignition Coil with Power Output Stage
- Ignition Coil 1 with Power Output Stage -N70-
- Ignition Coil 2 with Power Output Stage -N127-
- Ignition Coil 3 with Power Output Stage -N291-
- Ignition Coil 4 with Power Output Stage -N292-
- Removing and installing. Refer to IGNITION COILS WITH POWER OUTPUT STAGES, REMOVING AND INSTALLING .
- Bolt
- 10 Nm
- Nut
- 9 Nm
- Bolt
- 9 Nm
- Camshaft Position Sensor 3 -G300-
- Removing and installing. Refer to CAMSHAFT POSITION SENSOR 3 -G300- , REMOVING AND INSTALLING .
- O-ring
- Always replace if damaged
- O-ring
- Always replace if damaged
- Camshaft Position Sensor -G40-
- Removing and installing. Refer to CAMSHAFT POSITION SENSOR -G40- , REMOVING AND INSTALLING .
- Bolt
- 9 Nm
- O-ring
- Always replace if damaged
- Engine Speed Sensor -G28-
- Check the O-ring for damage
- Removing and installing. Refer to ENGINE SPEED SENSOR -G28- , REMOVING AND INSTALLING .
- Bolt
- 4 Nm + 45°
- Always replace after removing.
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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.