Replacement: spark plugs – Alfa Romeo 147 937. Tip from AUTODOC:
The replacement procedure is the same for all spark plugs.
All work should be done with the engine stopped.
Replacement: spark plugs – Alfa Romeo 147 937. Use the following procedure:
Step 1
Open the hood.
Step 2
Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
Step 3
Unscrew the engine cover fastener. Use Torx T40. Use a ratchet wrench.
Step 4
Unscrew the oil filler plug.
Step 5
Remove the oil filler cap.
Step 6
Remove the engine cover.
AUTODOC recommends:
Replacement: spark plugs – Alfa Romeo 147 937. Do not use excessive force when removing the part as this may damage it.
Step 7
Install the oil filler cap.
Step 8
Tighten the oil filler cap.
Step 9
Unplug the connectors from the ignition coils.
Step 10
Unscrew the ignition coil bracket. Use Torx T40. Use a ratchet wrench.
Step 11
Take out the ignition coil from the spark plug well.
Step 12
Clean dirt, dust and debris from inside the spark plug wells.
Step 13
Unscrew the spark plugs. Use the spark plug socket #16. Use a ratchet wrench.
Step 14
Take out the spark plugs.
Step 15
Apply a thin layer of a special high temperature anti-seize lubricant to the threads of the new spark plugs.
Step 16
Install the new spark plugs into their mounting seats.
Step 17
Screw new spark plugs and tighten them. Use the spark plug socket #16. Use a torque wrench. Tighten it to 24 nm torque.
Replacement: spark plugs – Alfa Romeo 147 937. Tip from AUTODOC:
Don't tighten the plugs with excessive force. Exceeding tightening torque can damage the thread connection. Be careful when working with a spark plug wrench. Its skewing can cause damage to the threaded connection.
Step 18
Install the ignition coils to the spark plug wells. Make sure you hear a click indicating that it is locked in place.
Step 19
Tighten the ignition coil fastening. Use Torx T40. Use a torque wrench. Tighten it to 7 nm torque.
Step 20
Treat the ignition coil connector with electronic spray. The spray will protect the electrical contacts from corrosion, oxidation, and will reduce the contact resistance.
Step 21
Plug in the connectors of the ignition coils.
Step 22
Unscrew the oil filler plug.
Step 23
Remove the oil filler cap.
Step 24
Install the engine cover and secure it.
AUTODOC recommends:
Replacement: spark plugs – Alfa Romeo 147 937. To avoid damaging the part during installation, do not use excessive force.
Step 25
Install the oil filler cap.
Step 26
Tighten the oil filler cap.
Step 27
Screw in the engine cover fasteners. Use Torx T40. Use a ratchet wrench.
Step 28
Run the engine for a few minutes. This is necessary in order to make sure that the component operates properly.
Step 29
Shut off the engine.
Step 30
Remove the fender protection cover.
Step 31
Close the hood.
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