Do it yourself
Frequently asked questions about cars and motorcycles

Spark Plug Replacement Instructions

Model: Mercedes Slk R170, MK 1 - Years 1997-2004
Part: Spark plugs

It is recommended to carry out this maintenance with a cold engine as you will need to handle particularly hot components during normal engine operation. Remove the red plastic cover on the engine, disconnect the connectors from the ignition coils, unscrew the mounting screws of the coils and pull them upwards to remove. Ensure there are no impurities that could enter the cylinders after removing the spark plug and proceed with their removal. Then, fit the new spark plugs without exceeding the tightening torque, reposition the leads, tighten the respective mounting screws, and reconnect the connectors.

Updated on 10 February 2026 by ScegliAuto

Video tutorial

Related tutorials

Mercedes Slk (1997-2004 / R170, MK 1) It is advisable to carry out this maintenance with the engine cold. Open the bonnet and remove the red plastic cover on top of the engine; disconnect…
Mercedes Slk (1997-2004 / R170, MK 1) Do you want to replace the spark plugs fitted in the cylinder head of a Mercedes SLK? Let's see how to do this. Pull the lever to open the engine com…
Mercedes Slk (1997-2004 / R170, MK 1) Below we will see the instructions that will allow us to carry out the repair or replacement of the window motor of the Mercedes SLK. First, we open …

Other guides you may be interested in

How to Remove the Front Bumper of the Citroën C4 Picasso?

To remove the front bumper of the Citroën C4 Picasso, you need to take out all the rivets and screws that secure the piece to its housing: these screws are located inside the wheel arches of the front wheels and at the central upper part of the bumper itself. Once all these fastening elements have been removed, you can detach the bumper from its seat by disconnecting the connectors inside and then insert the new replacement part. The new part can then be secured and connected properly, ensuring it is correctly fixed in place.

Watch the video!


by ScegliAuto

More videos