Not too sure what re-aligning the fuel distributor means..are you talking about the air metering plate??

How many miles on your 560? When was cap/rotor/wires done last? O2 sensor? Motor mounts? What kind of fuel mileage are you seeing? What spark plugs are you running?

Jonathan

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Blue Ridge Mercedes
Jonathan Hodgman
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Enthusiast Service, Restoration & Tuning.
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Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines.
Mercedes Repair Atlanta