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2010 Mercedes GLK 350: Both Idler Pulley and Belt Tensioner
This is an easy DIY and a great way to save yourself about $600-$800! IF your belt is squeaking and you’re not sure what it is, check your pulleys and belt tensioner.
Duration: 45-60 minutes
Tools needed:
• 17 mm bit
• E12 bit
• E14 bit
• 3 / 8 ratchet
• 1 / 2 breaker bar
• Extensions
*Idler pulley replacement part
*Belt Tensioner Replacement part
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