BMW Spark Plugs Installation Guidelines

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Parts that would be needed

Spark Plugs (available at Bimmerzone.com)

Tools that would be needed

Torque Wrench

Ratchet

Spark Plug Socket 5/8th

10mm Socket

Socket Extension around 6"

Flathead Screwdriver

Installation Guidelines 

• This spark plug guide was based on the spark plug change on a BMW E46, therefore spark plug changes for other BMWs will differ a little.

• Pop the hood and start removing the cabin filter as shown in the picture.

• Pop of the 3 screw like objects and the top should remove easily.

• Go ahead and take the Filter out and you will reveal 4 T30 Torx Screws, go ahead and remove them

• Now you have full access to your whole engine cover, there will be 2 covers covering nuts on the left engine cover

• Remove them with a flathead screwdriver, be careful though because those things will fall into the engine bay then it'll be a nice game of hide and seek but then you notice that they fell into your oil spill below after looking in the engine bay for 15min

• Now work on removing the nuts with your ratchet and 10mm socket
  

• Once removed you will now need to take off your oil filling cap and you can remove your left engine cover

• as soon as the left engine cover is removed put your oil filling cap back on so that no contaminates can fall into the engine

• Now you will see your coils

• Note that the outside coils have earthling straps, you will need to re-connect them at the end.

• Go ahead and work on the 2 bolts on the upper left and bottom right holding the coils into place

• now push up on the silver clip, sorta like your radio connector, it will release the plug

• Once the plug is released you can now remove your coils, you can do this 1 by 1 or all at the same time, it doesn't matter.

• Now take your ratchet, extension, and spark plug socket and stick it down into the hole, at the bottom you should see your spark plugs, go ahead and remove them

• Replace all the spark plugs.

• Now re-insert the new spark plugs just how you removed them and torque them down to 18 ft/lb torque or 216 in/lb

• Re-assemble everything just how you removed it and wallah you have changed your spark plugs

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Page last updated 03/10/2010

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