Date registered: May 2007
Vehicle: 2003 Mercedes Benz E500
Location: San Francisco Bay Area
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can make a big difference in the way these cars run.
Hazet and Stahlwille make a special valve adjusting wrench for the M110 engine, as does the factory. With two of these engines, obtaining the proper tool would be a worth while investment.
The valves are always a wee bit noisy, being solid adjusters via a ball-stud, as opposed to hydraulic, but get it tuned right and the EU version twin cam can be a great engine.