1. Remove the engine cover. |
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2. Detach the wiring harness. |
Unplug the wiring harness from each of the coils. |
3. Remove the coils. |
Loosen the 8 coil bolts using a 5mm hex key and pull the coils out of the engine. |
4. Replace sparkplugs. |
Check the gapping on each plug and adjust to the recommended gap. NGK recommends a 0.028 gap for the 1.8T engine with the ATW engine code, but anything in the range 0.028 - 0.035 should be fine. Use the 16mm sparkplug attachment and 6" extension to remove and replace each sparkplug. Optional: apply a light coat of anti-seize on the threads of each new plug. Use a torque wrench to tighten each plug to 22ftlb. Do not overtighten or else you will damage the aluminum cylinder head!
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5. Reinstall coils, wiring harness, and engine cover. |
The Bentley manual recommends tighttening the coil bolts to 7ftlbs (thanks for the info Art!). |
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