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Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 53981
Experience:  Bosch Certified Master Tech. Over 35 years experience.
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Have a 2010 ml350 with the bluetec 3.0 the timing chain

Customer Question

have a 2010 ml350 with the bluetec 3.0 the timing chain tentioner dos not ratchet out but only has spring pressure/ is this correct or is it broken internally
Submitted: 11 months ago.
Category: Mercedes
Expert:  Marty replied 11 months ago.

Hi, my name is***** tensioner on this motor is a hydraulic tensioner. It is not a ratcheting tensioner. Your tensioner is probably fine.

Let me know if you have any questions.