For BMW M54 3.0 Liter Applications. Valve Repair Kit Rebuild Rattle For BMW DISA Fix Overhaul M54 2.2 2.5 Aluminium. Material: Aluminium. Valve Repair Kit includes a precision machined silver aluminum flapper valve, precision machined silver anodized aluminum bell crank lever, precision machined titanium pivot screw, stainless steel lock washer and a new silicone main housing o-ring seal.