How to change spark plugs on MERCEDES-BENZ A-Class (W169) – replacement guide
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Recommended replacement interval for the part category Spark Plug : 18month / 30000km
Important!
This replacement procedure can be used for:
MERCEDES-BENZ A-Class (W169) A 160 (169.031, 169.331),
MERCEDES-BENZ A-Class (W169) A 170 (169.032, 169.332),
MERCEDES-BENZ A-Class (W169) A 180 (169.032, 169.332),
MERCEDES-BENZ A-Class (W169) A 150 (169.031, 169.331),
MERCEDES-BENZ A-Class (W169) A 200 (169.033, 169.333)
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The steps may slightly vary depending on the car design.
This video shows the replacement procedure of a similar car part on another vehicle
All the parts you need to replace – Spark Plug for A-Class (W169) and other MERCEDES-BENZ models
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 11
Install the ignition coil to the spark plug well. Make sure you hear a click indicating that it is locked in place.
Step 12
Tighten the ignition coil fastening. Use a drive socket #E11. Use a torque wrench. Tighten it to 12 nm torque.
Step 13
Plug in the ignition coil connector.
Step 14
Run the engine for a few minutes. This is necessary in order to make sure that the component operates properly.
Step 15
Shut off the engine.
Step 16
Remove the fender protection cover.
Step 17
Close the hood.
Comments –
1
M. H.
24.04.2023 15:16
Member
This tutorial is incorrect for a150 w169, there are two coil packs and they are separate from the sparkplugs
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