Keep detonation in check and let the engine control unit fine-tune ignition timing with the Bosch Ignition Knock (Detonation) Sensor 0261231045. This Bosch OE-quality sensor drops in as a direct-fit replacement for the 1999-2001 Volkswagen Beetle (L4-1.8L), 2001 Volkswagen Beetle (L4-2.0L), 1999-2001 Volkswagen Golf (L4-2.0L), and 1999-2001 Volkswagen Jetta (L4-2.0L) — each listed application uses two sensors.
Detects engine knock: monitors engine vibrations and signals the control unit to adjust ignition timing as needed, helping protect critical components.
Built to OE specifications: designed to original equipment specifications for reliable, consistent ignition control.
Blade-terminal connection: a single rectangular male connector with two male blade terminals.
Bolt-on install: metal-and-plastic construction with a bolt-on mounting type.
Designed to help improve combustion efficiency and support reduced fuel consumption and emissions, and to allow the use of fuels with various anti-knock properties. If a faulty knock sensor is the cause of your ignition-timing trouble, this replaces it. Country of origin: Romania. Manufacturer part number 0261231045.
This part cross-references / interchanges with the following part numbers:
030905377A
Frequently Asked Questions
What does this Bosch knock sensor do?
It monitors engine vibrations to detect knock (detonation) and signals the control unit to adjust ignition timing, helping protect engine components and support smoother combustion.
What vehicles does the 0261231045 fit?
It's a direct-fit replacement for the 1999-2001 VW Beetle (L4-1.8L), 2001 Beetle (L4-2.0L), 1999-2001 Golf (L4-2.0L), and 1999-2001 Jetta (L4-2.0L). See the Buyer's Guide tab for the full list.
How many knock sensors do I need?
Each listed application uses two knock sensors, so order two for a complete replacement. This listing's package quantity is as stated in the catalog.
What is it made of and where is it made?
It has a metal-and-plastic construction with a bolt-on mounting type. Country of origin: Romania.
What are signs this sensor may need replacing?
A check-engine light, audible knock or ping, or reduced performance can be signs. Diagnose the cause first, since these symptoms can have other sources.
Bosch Knock SensorBosch OE-quality Knock Sensors precisely detect engine knock to help protect critical components and maintain optimal performance. Designed to original equipment specifications,...
Bosch Knock SensorBosch OE-quality Knock Sensors precisely detect engine knock to help protect critical components and maintain optimal performance. Designed to original equipment specifications,...
Bosch Knock SensorBosch OE-quality Knock Sensors precisely detect engine knock to help protect critical components and maintain optimal performance. Designed to original equipment specifications,...
Bosch Knock SensorBosch OE-quality Knock Sensors precisely detect engine knock to help protect critical components and maintain optimal performance. Designed to original equipment specifications,...
Bosch Knock SensorBosch OE-quality Knock Sensors precisely detect engine knock to help protect critical components and maintain optimal performance. Designed to original equipment specifications,...
WARNING:
These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
www.P65Warnings.ca.gov.
