Bosch Ignition Knock (Detonation) Sensor | 8653171

Volvo S60, C70, C30, S40, S60 FWD, S60 AWD, XC60 AWD, V50, XC60 FWD, S40 AWD & more
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P/N: 8653171 Bosch OEM FREE SHIPPING
Cross References:
  • 0261231178

Knock sensors monitor the pre-detonation of the air-fuel mixture in an internal combustion engine. Pre-detonation occurs when part of the air-fuel mixture ignites before normal combustion creating a shockwave that resonates through the engine block that emits an audible knocking or pining sound. When the knock sensor detects the knock or ping, it relays that information to the engine computer so the computer can adjust engine timing and the amount of fuel entering the engine to stop the pre-detonation. Prolonged pre-detonation in one or more cylinders can damage the cylinder walls, pistons, cylinder head gasket, cylinder head, spark plugs, and engine valves.

When a knock sensor detects engine knock for a prolonged timeframe, the engine computer in your Volvo will illuminate the check engine light with a fault code indicating excessive engine knocking that can not be stopped by adjusting timing and fuel entering the engine. Excessive engine pressure due to carbon build-up in a cylinder, excessive engine load, an improperly timed engine, and lower than recommended octane fuel can all cause excessive knocking that the engine computer can not adjust for.

Replacing Your Volvo Knock Sensor

Knock sensors are mounted directly to the exterior of the engine block to pick up the vibrations created by pre-detonation. However, due to their location, they can often be challenging to access and may require extensive removal of components such as intake or exhaust manifolds to replace. With that in mind, on average, knock sensors can take between 20 minutes to up to four hours to replace.

View more Volvo Knock Sensors.

Bosch is the world's largest supplier of components to the automotive industry. The Bosch product line includes alternators & starters, brakes, electronic controls and sensors, fuel system parts and management, ignition system components, and steering system components. All Bosch automotive parts are either OEM (Original Equipment Manufacturer) or made to their specs as a replacement part for the OEM unit.
Left = Driver side and Right = Passenger side.
All parts are priced individually unless identified as a set or kit. "Per car" notes identify how many of a given part your car has and "Left/Right or Front/Rear" notes means the part fits the left or right side of the car. These parts are still sold individually and you'll need to select the appropriate quantity if you plan to replace more than one of this item.

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What This Bosch Ignition Knock (Detonation) Sensor Fits?

Application information below is for reference only and should not be used to determine the exact vehicle fitment. Please use the "Make Sure It Fits" vehicle selection box above to determine the exact fitment and review any application notes. If you need any help determining if this part works with your vehicle, please don't hesitate to contact us.

Volvo
08-13 - C30 T5, T5 R-Design
06-13 - C70 T5
04-11 - S40 T5, T5 R-Design
05-10 - S40 AWD T5, T5 R-Design
05-10 - S40 FWD T5, T5 R-Design
12-12 - S60 T5
13-16 - S60 AWD T5, T5 Inscription Platinum, T5 Inscription Premier, T5 Platinum, T5 Premier & more
16-16 - S60 Cross Country T5 Platinum
13-16 - S60 FWD T5, T5 Inscription Platinum, T5 Inscription Premier, T5 Platinum, T5 Premier & more
09-11 - V50 T5, T5 R-Design
05-08 - V50 AWD T5
05-08 - V50 FWD T5
15-16 - V60 AWD T5, T5 Platinum, T5 Premier, T5 Premier Plus
15-16 - V60 Cross Country T5, T5 Platinum
15-16 - V60 FWD T5, T5 Platinum, T5 Premier, T5 Premier Plus
15-16 - XC60 AWD T5, T5 Platinum, T5 Premier
15-16 - XC60 FWD T5, T5 Platinum, T5 Premier