Replacement: spark plugs – AUDI A6 (4F2, C6). Professionals recommend:
The replacement procedure is the same for all spark plugs.
All work should be done with the engine stopped.
Replacement: spark plugs – AUDI A6 (4F2, C6). Take the following steps:
Step 1
Open the hood.
Step 2
Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
Step 3
Remove the engine cover.
Step 4
Unplug the connectors from the ignition coils.
Step 5
Raise a little the wiring of the ignition coils and move it aside.
Step 6
Pry up the ignition coil (4 pieces). Use a crowbar.
Step 7
Take out the ignition coils from the spark plug wells.
Replacement: spark plugs – AUDI A6 (4F2, C6). Tip:
Remember the sequence of steps for ignition coil demounting.
Step 8
Clean dirt, dust and debris from inside the spark plug wells.
Step 9
Unscrew the spark plugs. Use the spark plug socket #16. Use a ratchet wrench.
Step 10
Take out the spark plugs.
Step 11
Apply a thin layer of a special high temperature anti-seize lubricant to the threads of the new spark plugs. Treat the surface of the terminals of the new spark plugs. Use high-temperature grease.
Step 12
Install the new spark plugs into their mounting seats.
Step 13
Screw new spark plugs and tighten them. Use the spark plug socket #16. Use a torque wrench. Tighten it to 25 nm torque.
Replacement: spark plugs – AUDI A6 (4F2, C6). AUTODOC recommends:
Be careful when working with a spark plug wrench. Its skewing can cause damage to the threaded connection.Don't tighten the plugs with excessive force. Exceeding tightening torque can damage the thread connection.
Step 14
Install the ignition coils to the spark plug wells. Make sure you hear a click indicating that it is locked in place.
Replacement: spark plugs – AUDI A6 (4F2, C6). Tip from AUTODOC experts:
Follow the installation sequence.
Step 15
Treat the ignition coil connector with electronic spray. The spray will protect the electrical contacts from corrosion, oxidation, and will reduce the contact resistance.
AUTODOC recommends:
Replacement: spark plugs – AUDI A6 (4F2, C6). After applying the spray, wait a few minutes.
Step 16
Plug in the connectors of the ignition coils.
Step 17
Secure the wiring of the ignition coils in its mounting seats.
It can track car expenses, keep a car log and replacement schedule, and save favourite materials, notes and documents
Install the AUTODOC CLUB app!
Your personal car expenses manager, maintenance tips, reminders about upcoming appointments and service intervals, DIY repair instructions – all this on your phone.
Scan
To download the app:
- scan the QR code
- download from App Store
- download from Google Play
Tips & tricks for your AUDI A6 Saloon (4F2, C6)
View more
3 things to know before buying summer tyres | AUTODOC tips
How to shine your tyres | AUTODOC tips
How to clean an engine bay | AUTODOC
What to do if the airbag light is on | AUTODOC tips