How can incorrectly tightening a knock sensor fastener affect its performance on Volkswagen Jetta?

Poorly fitting a knock sensor fasteners may interfere with the functionality of the knock sensor. In case the battery is disconnected, it will be necessary to re-learn several systems until they will start to work properly. To do so, with 1.4L and 2.0L non-turbocharged engines, lift the front of the automobile and place it firmly on jackstands, and then remove the under-vehicle splash cover and the drivebelt. In 1.4L engines, get the air conditioning compressor bolts out and fix the compressor to the side. Find and unscrew the knock sensor electrical connector, pull the bolt off and unscrew the knock sensor off the block. Installation is the opposite of removing, and the knock sensor bolt should be tightened up to the torque. In 1.8L and 2.0L turbocharged engines, initial steps are the same, namely, disconnection of negative battery terminal and emptying of the cooling system. Disassemble the intake manifold and water pump, disconnect hoses and electrical connector to the Engine Temperature Control Actuator and disassemble the actuator. Disassembling The old O-rings should be discarded and the new ones installed and then the knock sensor harness connector should be disconnected, the knock sensor bolt removed and the knock sensor removed. Installation is in reverse of uninstalling and the knock sensor bolt is tightened to specifications. In the case of engines with 2.5L, the two knock sensors can be found beneath the exhaust manifold, and their electrical wires must be disconnected, the fasteners of the heat shield removed, and the screw fixing the knock sensor must be removed. Installation When fitting a knock sensor, the sensor mounting screw should be firmly screwed to its torque, and otherwise the installation process is the opposite of the removal process.

Genuine Volkswagen Jetta Knock Sensor

Engine Knock Sensor

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

12 Knock Sensors found

View related parts
Volkswagen Jetta Knock Sensor Part Number: 037-905-377-B
$46.80 MSRP: $65.00
You Save: $18.20 (28%)
ADD TO CART
Product Specifications
- Other Name: Sensor
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2000-2001 Volkswagen Jetta | GLS, GLX | 6 Cyl 2.8 L GAS
View related parts
Volkswagen Jetta Knock Sensor Part Number: 030-905-377-F
$4.22 MSRP: $6.92
You Save: $2.70 (40%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2022-2024 Volkswagen Jetta | S, SE, SEL, Sport | 4 Cyl 1.5 L GAS
View related parts
Volkswagen Jetta Knock Sensor Part Number: 07K-905-377-D
$96.38 MSRP: $134.98
You Save: $38.60 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor
- Replaces: 07K-905-377, 07K-905-377-B
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2018, 2005-2014 Volkswagen Jetta | 2.5, S, SE, SE Sport, SEL, Sport, Value Edition, Wolfsburg Edition | 4 Cyl 1.8 L GAS, 5 Cyl 2.5 L GAS
View related parts
Volkswagen Jetta Knock Sensor Part Number: 07K-905-377-E
$98.76 MSRP: $138.32
You Save: $39.56 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor
- Replaces: 07K-905-377-A, 07K-905-377-C
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2005-2015 Volkswagen Jetta | 2.5, Base, S, SE, SEL, Value Edition, Wolfsburg Edition | 4 Cyl 2.0 L GAS, 5 Cyl 2.5 L GAS
View related parts
Volkswagen Jetta Knock Sensor Part Number: 06F-905-377
$99.95 MSRP: $139.98
You Save: $40.03 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2006-2008 Volkswagen Jetta | 2.0T, GLI, TDI, Wolfsburg Edition | 4 Cyl 1.9 L DIESEL, 4 Cyl 2.0 L GAS
View related parts
Volkswagen Jetta Knock Sensor Part Number: 06K-905-377-E
$101.14 MSRP: $141.65
You Save: $40.51 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor; Knock Sensor
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2015-2017 Volkswagen Jetta | GLI, GLI SE, GLI SEL | 4 Cyl 2.0 L GAS
View related parts
Volkswagen Jetta Sensor Part Number: 054-905-377-G
$102.33 MSRP: $143.32
You Save: $40.99 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaces: 054-905-377
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 1990-1999 Volkswagen Jetta | Carat, Celebration Edition, City, GL, GLI 16-Valve, GLS, GT, Jazz, K2, Limited Edition, Trek, Wolfsburg Edition | 4 Cyl 1.6 L DIESEL, 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
View related parts
Volkswagen Jetta Knock Sensor Part Number: 06E-905-377-J
$102.33 MSRP: $143.32
You Save: $40.99 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor; Knock Sensor
- Position: Left
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2012-2014, 2006-2010 Volkswagen Jetta | 2.0T, GLI, SEL, TDI, TDI Cup Edition, TDI Premium, Wolfsburg Edition | 4 Cyl 1.9 L DIESEL, 4 Cyl 2.0 L DIESEL, 4 Cyl 2.0 L GAS
View related parts
Volkswagen Jetta Sensor Part Number: 054-905-377-A
$121.25 MSRP: $169.81
You Save: $48.56 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Knock Sensor
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 1994-1999, 1985-1989 Volkswagen Jetta | Base, Carat, GL, GLI, GLI 16-Valve, GLX, Wolfsburg Edition | 4 Cyl 1.6 L DIESEL, 4 Cyl 1.8 L GAS, 6 Cyl 2.8 L GAS
View related parts
Volkswagen Jetta Knock Sensor Part Number: 030-905-377-A
$124.94 MSRP: $174.98
You Save: $50.04 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 1999-2001 Volkswagen Jetta | GL, GLS, Wolfsburg Edition | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
View related parts
Volkswagen Jetta Knock Sensor Part Number: 037-905-377-A
$163.97 MSRP: $229.65
You Save: $65.68 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 1995-1999 Volkswagen Jetta | GLS, GLX | 6 Cyl 2.8 L GAS
View related parts
Volkswagen Jetta Knock Sensor Part Number: 021-905-377
$149.23 MSRP: $209.00
You Save: $59.77 (29%)
ADD TO CART
Product Specifications
- Other Name: Sensor
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 1996-1998 Volkswagen Jetta | GLX | 6 Cyl 2.8 L GAS

Volkswagen Jetta Knock Sensor

The Volkswagen Jetta Knock Sensor prevents any damage to the engine by detecting dangerous pinging and instructing the computer to adjust ignition timing before anything goes awry. Clamped to the block, the piezoelectric crystal of this device converts peaks of sharp vibration into a voltage that can be immediately read by the PCM. The controller will step back spark timing a few degrees in small steps when knock occurs until the rattle disappears, and then step timing forward again to keep power and economy high. The sensor measures the vibrations continuously each time the throttle is opened due to the possibility of detonation at any given time caused by heat, altitude or low octane fuel, among other factors. The first generation in the 1990s was based on a single wide range unit and was able to monitor the entire engine, whereas the second generation of Volkswagen models moved to smarter devices capable of listening to each individual cylinder to allow corrections to be made more precisely and, in the case of turbo engines, by briefly reducing the boost. Although the hardware is revised, the basic task is still performed. The Knock Sensor listens for trouble, the PCM takes action, and the process repeats itself thousands of times per minute, ensuring the safety of pistons and valves. This mute protector also allows contemporary Volkswagen vehicles to operate nearer to the knock threshold, forcing greater performance and enhanced fuel economy out of the same displacement. In the new Jetta engines the advanced Knock Sensor assists with blends of fuel of different octane to provide spirited acceleration without long term wear. This automatic, round-the-clock protection is a demonstration of Volkswagen's commitment to making fun and reliable vehicles.

Choose OEM Knock Sensor for superior quality and long-lasting durability. They match the Volkswagen's factory specifications exactly and pass strict quality control. If you plan to replace Knock Sensor on your Jetta, put OEM at the top of your list. You'll get the right fit, reliable performance, and peace of mind. We stock an extensive inventory of genuine Volkswagen Jetta parts. It is easy to find what you need. You will love our competitive prices that help you save. No more hassle with returns or guesswork. Every part includes a warranty straight from the manufacturer. Get trusted quality, strong durability, and real value today.

Volkswagen Jetta Knock Sensor Parts and Q&A

Knock Sensor
06E-905-377-J
Q: How can incorrectly tightening a knock sensor fastener affect its performance on Volkswagen Jetta?
A:
Poorly fitting a knock sensor fasteners may interfere with the functionality of the knock sensor. In case the battery is disconnected, it will be necessary to re-learn several systems until they will start to work properly. To do so, with 1.4L and 2.0L non-turbocharged engines, lift the front of the automobile and place it firmly on jackstands, and then remove the under-vehicle splash cover and the drivebelt. In 1.4L engines, get the air conditioning compressor bolts out and fix the compressor to the side. Find and unscrew the knock sensor electrical connector, pull the bolt off and unscrew the knock sensor off the block. Installation is the opposite of removing, and the knock sensor bolt should be tightened up to the torque. In 1.8L and 2.0L turbocharged engines, initial steps are the same, namely, disconnection of negative battery terminal and emptying of the cooling system. Disassemble the intake manifold and water pump, disconnect hoses and electrical connector to the Engine Temperature Control Actuator and disassemble the actuator. Disassembling The old O-rings should be discarded and the new ones installed and then the knock sensor harness connector should be disconnected, the knock sensor bolt removed and the knock sensor removed. Installation is in reverse of uninstalling and the knock sensor bolt is tightened to specifications. In the case of engines with 2.5L, the two knock sensors can be found beneath the exhaust manifold, and their electrical wires must be disconnected, the fasteners of the heat shield removed, and the screw fixing the knock sensor must be removed. Installation When fitting a knock sensor, the sensor mounting screw should be firmly screwed to its torque, and otherwise the installation process is the opposite of the removal process.