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BMW 525i Replacement Knock Sensor Information

Read Reviews for BMW 525i Knock Sensor -
5 stars - (3 Reviews)
BMW 525i Knock Sensor Reviews
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Many drivers don't know exactly what the knock sensor does in a car. Like other sensors, it monitors engine operation to increase performance. The main function of this device is to detect vibrations caused by engine knock. This data is sent to the powertrain control module, which alters ignition timing and prevents detonation. Knock sensors ensure that you are getting as much power and fuel economy as possible from your engine.

This sensor is usually located in the lower engine block. If it fails, you may experience poor acceleration and reduced fuel economy. The symptoms of a damaged knock sensor show up at highway speeds. The knocking action can destroy the valves, plugs, rods, pistons, and gaskets. Your car's computer will detect a bad sensor and enter fail safe mode. Failure to replace this device can lead to extensive damage to the engine.


They are available for the following BMW 525i years: 2007, 2006, 2005, 2004, 2003, 2002, 2001, 1995, 1994, 1993, 07, 06, 05, 04, 03, 02, 01, 95, 94, 93. This part is also sometimes called BMW 525i Engine Sensors. We stock knock sensor parts for most BMW models including 318i, 740iL, 325i, 540i, 318is, 530i, M3, 325is, 318ti, 740i, X5, 528i, Z3, 745Li, X3, 328i, 750iL, 745i, 645Ci, 330i, 323Ci, 325Ci, 545i, 650i, 750i, Alpina B7, 328is, 325xi, 750Li, 323i, 330Ci, 330xi, 335i, 535i, M5, Z4, 328xi, 320i, 550i and 323is.

We stock these Knock Sensor brands for the BMW 525i: Bosch, Beck Arnley, VDO, Vemo and Standard Motor Products.


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Click to Enlarge
(Read reviews)
Retail Price:
$120.53
Sale Price: $57.33
(4) In Stock
Product SKU: W0133-1619558
Product Note: 2 per Engine
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Warehouse: A
Vehicle
• 1995 (95) BMW 525i

Click to Enlarge
(Read reviews)
Retail Price:
$120.53
Sale Price: $57.33
(4) In Stock
Product SKU: W0133-1619558
Product Note: 2 per Engine
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Warehouse: A
Vehicle
• 1994 (94) BMW 525i

Click to Enlarge
(Read reviews)
Sale Price: $55.23
(6) In Stock
Product SKU: 158-1066
Product Note: Ignition Knock (Detonation) Sensor
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Warehouse: B
Vehicle Engine
• 2001 (01) BMW 525i 2.5L 6 Cyl 

Click to Enlarge
(Read reviews)
Retail Price:
$120.53
Sale Price: $57.33
(4) In Stock
Product SKU: W0133-1619558
Product Note: Production: 09/1992-, 2 per Engine
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Warehouse: A
Vehicle Production Range
• 1993 (93) BMW 525i Fr:09-00-92 

Click to Enlarge
(Read reviews)
Retail Price:
$138.62
Sale Price: $74.33
(1) In Stock
Product SKU: W0133-1835227
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Warehouse: A
Vehicle
• 2001 (01) BMW 525i

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Bosch 0261231195
Knock Sensor
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Sale Price: $43.63
(1) In Stock
Product SKU: 0261231195
Product Note: Ignition Knock (Detonation) Sensor -- New; 2 Required
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Warehouse: C
Vehicle Engine
• 1995 (95) BMW 525i 2.5L 6 Cyl 

Click to Enlarge
(Read reviews)
Retail Price:
$138.62
Sale Price: $78.33
(1) In Stock
Product SKU: W0133-1814791
Detailed Note: Requires (2) Torx Screws M8 X 31-AL 11 41 7 529 984
Inventory: In Stock
Condition: New

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Warehouse: A
Vehicle
• 2007 (07) BMW 525i

Click to Enlarge
(Read reviews)
Retail Price:
$138.62
Sale Price: $78.33
(1) In Stock
Product SKU: W0133-1814791
Detailed Note: Requires (2) Torx Screws M8 X 31-AL 11 41 7 529 984
Inventory: In Stock
Condition: New

Shipping Options:
Ground, Overnight, 2 Day
Additional Fitment Information: Warehouse: A
Vehicle
• 2006 (06) BMW 525i

Click to Enlarge
(Read reviews)
Sale Price: $73.63
(7) In Stock
Product SKU: KS181
Product Note: Ignition Knock (Detonation) Sensor -- Genuine Intermotor Quality
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Warehouse: C
Vehicle
• 1995 (95) BMW 525i

Click to Enlarge
(Read reviews)
Sale Price: $73.63
(7) In Stock
Product SKU: KS181
Product Note: Ignition Knock (Detonation) Sensor -- Genuine Intermotor Quality
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Warehouse: C
Vehicle
• 1994 (94) BMW 525i

Click to Enlarge
(Read reviews)
Sale Price: $73.63
(7) In Stock
Product SKU: KS181
Product Note: Ignition Knock (Detonation) Sensor -- Genuine Intermotor Quality
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Warehouse: C
Vehicle
• 1993 (93) BMW 525i

Click to Enlarge
(Read reviews)
Sale Price: $73.63
(7) In Stock
Product SKU: KS181
Product Note: Ignition Knock (Detonation) Sensor -- Genuine Intermotor Quality
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Warehouse: C
Vehicle
• 1992 (92) BMW 525i

Click to Enlarge
(Read reviews)
Sale Price: $73.63
(7) In Stock
Product SKU: KS181
Product Note: Ignition Knock (Detonation) Sensor -- Genuine Intermotor Quality
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Warehouse: C
Vehicle
• 1991 (91) BMW 525i


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Some of our Customer Reviews
Very Satisfied
Reviewer: bosman518

7/6/10 02:38 PM

fast shipment, good product

Order Date | 6/29/10

Very Satisfied
Reviewer: jamesdsmith4

6/17/10 08:13 PM

received item early and as promised. great price and excellant sevice. thanks. will use you again. Jim.

Order Date | 6/9/10



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