Roadfar Knock Sensor Compatible With 1992-1995 For Bmw 325I 325Is 2.5L,1991-1995 For Bmw 525I 2.5L,1993 For Bmw 525It 2.5L,1995 For Bmw M3 3.0L Ks181 12837290

Knock Sensor Is Designed To Detect When The Combustion In Car Is Not Being Properly Controlled.A Knock Sensor Uses An Internal Element That Is Extremely Accurate To Vibration And Will Detect When The Pressure Wave From The Combustion Hits The Cylinder Wall Before It Is Supposed To.When The Sensor Detects Incorrect Noise From Internals Of The Motor It Will Retard The Timing In Order To Maintain The Engine.The Sensor Has Been Designed To Act As If Mechanic Was Listening To The Engine And Keeping An Eye On The Things For The Driver.
Notice :Please Find The Amazon Fitment On The Top Of The Page,Enter Your Vehicle Information To Check If The Item Fit Your Vehicle
Fitment:1992-1995 For Bmw 325I 2.5L
1992-1995 For Bmw 325Is 2.5L
1991-1995 For Bmw 525I 2.5L
1993 For Bmw 525It 2.5L
1995 For Bmw M3 3.0L