P0327 Code: Knock Sensor Low Input Causes & Fix
Learn what triggers the P0327 knock sensor low-input code, how serious it is, and how to diagnose the sensor, connector and wiring step by step before replacing parts.
Jul 27, 2026
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Mercedes-Benz C320 Knock Sensor
6 itemsGet a reliable Knock Sensor for your vehicle at A-Premium. Our high-quality sensors are designed to accurately detect engine knocking, helping to prevent costly damage. Browse our selection today and enjoy fast, free shipping on your order.
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A-Premium®Part # APKNS131
Ignition Knock Detonation Sensor for Mercedes-Benz C240 C280 E420 S600 2-Blade
4.811 Reviews
$19.99
Low stock: Only 3 left
A-Premium®Part # APKNS054
Knock Detonation Sensor for Mercedes-Benz C240 E320 E55 AMG Chrysler Maybach
4.811 Reviews
$18.99
Low stock: Only 2 left
Walker ProductsPart # 242-91149
Walker Products 242-91149 Ignition Knock (Detonation) Sensor
4.329 Reviews
$54.99
Walker ProductsPart # 242-1149
Walker Products 242-1149 Ignition Knock (Detonation) Sensor
4.329 Reviews
$44.99
StandardPart # KS184
Standard KS184 Ignition Knock (Detonation) Sensor
4.448 Reviews
$58.99
Low stock: Only 2 left
Beck/ArnleyPart # 158-0883
Beck/Arnley 158-0883 Ignition Knock (Detonation) Sensor
4.540 Reviews
$40.99