Please check notes in each part listing to ensure the Ignition Knock (Detonation) Sensor is correct for your 2001 MERCEDES-BENZ CL55 AMG with a 5.5L 5439cc 335 engine. Special restrictions like "California only" or "with sport package" may indicate a Ignition Knock (Detonation) Sensor fits only certain 2001 MERCEDES-BENZ CL55 AMG models.

Clicking a "More Info" link will display a picture and/or other details about that Ignition Knock (Detonation) Sensor in a separate window (you may need to turn off your pop-up-blocking software for this to work).

After choosing a Ignition Knock (Detonation) Sensor, click the "Add Part" button. Shipping costs will be shown on the Shopping Cart page. You may use your browser's Back button, or click on "Find More Parts", to find more Emission parts, other MERCEDES-BENZ CL55 AMG parts, or parts for a different vehicle. Please try our Interactive Catalog (click red Start button above) for faster searching. Both catalogs use the same shopping cart, so any auto parts you've already chosen for your 2001 MERCEDES-BENZ will not be lost if you switch.