Camshaft adjuster magnets / solenoids

How you know it is this

• A camshaft timing code that clears and returns
• Rough running that comes and goes
• Oil found inside the solenoid's electrical plug

Worth knowing before you buy

• Cheap, and by far the most common cause of a camshaft timing code. Always worth trying before the adjuster.
• Oil creeping up the wiring into the plug is a classic failure, and the loom connector may need doing with it.
• Its filter screen blocks with sludge — sometimes cleaning is all it needs.

Rest of the timing

• Timing chains
• Timing chain tensioners
• Timing chain guides and rails
• Timing belts and kits
• Camshaft adjusters (phase variators)
• Timing covers and gaskets