View all videos in this series: • Required Maintenance A... This is the very first thing you should do when acquiring an old Mercedes Diesel. Do NOT fix or repair anything else until you do an engine health exam and it starts with adjusting the valves. This should be done every 12,000 miles on OM61x engines before 1986 and just does not get done! Link to kits: mercedessource...
Series play list: • 3 Key Aspects: Diesel ...