Original BMW S54 VANOS Diaphragm Spring Set - E46 M3, Z3 M Coupe and Roadster, and Z4 M Coupe and Roadster (2001–2008)

This Original BMW diaphragm spring set sits between the VANOS unit and the camshaft on the S54 inline-six used in the E46 M3, the Z3 M Coupe and M Roadster, and the Z4 M Coupe and M Roadster. VANOS is BMW's variable camshaft timing system, and the hub hardware at the cam ends links the VANOS unit to the camshafts. BMW supplies this part as a set, and each set covers one camshaft. It weighs 56 g, and BMW shows production from May 1999 onward. The set is made in Germany. It is usually replaced when an S54 VANOS assembly is rebuilt or resealed.

Original BMW Parts carry a 24-month parts warranty.

BMW's official name for this part is "Set, diaphragm spring." That name explains why it is easy to miss under a generic spring plate heading. On BMW's parts diagrams it belongs to the S54 engine only. It is shown for the E46 M3 coupe and convertible, the M3 CSL, the E85 and E86 Z4 M3.2, and the Z3 M3.2. BMW lists this part only for the S54, so check your engine code before ordering. Because the set is sold for one camshaft, count the camshafts you are servicing before you order.

Technical Details

• Manufacturer: BMW
• Part number: 11-36-7-830-684
• BMW part name: Set, diaphragm spring
• Engine: S54
• Weight: 56 g (0.1 lb)
• Production start: May 1999
• Sold as one set, priced each, one set per camshaft
• Made in Germany
• Warranty: 24 months on Original BMW Parts

Common Questions

How many sets does my engine need?
Each set covers one camshaft. Order one set for each camshaft you are servicing.

Does this fit a non-M E46 or Z4?
No. BMW's data ties this set only to the S54 engine.

Talk to PMB when you plan your S54 VANOS work and we will pull the matching BMW parts.

Fitment & Compatibility

Use the table below to verify the year and submodel for your build. With over 20 years of parts and fitment experience, PMB Performance can match this to your VIN.