Mercedes-Benz M-Class Maintenance Booklet page 65

US Service 12 at every 91,000 miles or 5 years
Engine compartment
Replace spark plugs
US Service 13 at every 143,000 miles or 15 years
Engine compartment
Replace coolant
US Service 14 - 19
Not applicable
US Service 20 once at 39,000 miles
Underside of vehicle
Automatic transmission - oil and filter change
Maintenance Booklet
Maintenance service descriptions
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2080
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