Mercedes-Benz GL-Class, Maintenance Booklet

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Maintenance Booklet
Maintenance service descriptions
Recommended additional maintenance checks for high-mileage vehicles at 143,000 miles (continued)
Check integrity of engine, mechanical components
Perform compression test (hot and cold) - - - -
Perform leak down test (hot and cold) - - - -
Check spark plugs - - - -
Exhaust system hangers and leaks - - - -
Check for damaged/worn drivetrain parts
Front wheel bearing play - - - -
Rear wheel bearing play - - - -
Axle joint play - - - -
Driveshaft flexible discs - - - -
Tie rod and drag link joints - - - -
Check for updates performed
Recalls and Service Campaigns - - - -