Always be a bright spark

Job: Replacing spark plugs

Difficulty: **

Save: £50

One of the common mistakes DIY mechanics make is breaking a spark plug when trying to remove it, so be careful. You’ll need to remove the plastic cover from the top of your engine (if it has one), disconnect the HT leads (noting which one connects to where) and take out the old plugs using the correct tool. The job can be quite car-specific, so consult a manual.