OE/Part Numbers : 0280140509, 134111286065, 92860616100
Compatible Brands: for BMW
Compatible Vehicles & Years:- for BMW E23 E24 E28 E30 E32 E34 3 5 6 7 Series
Type: Stepper Motor Idle Air Control Valve
Key Functions: This idle air control valve regulates the engine's idle speed by controlling the amount of air bypassing the throttle body.
Features & Advantages:1.Direct OEM Fit & Function. 2 .High-Quality Components for Reliability. 3.Rigorous Quality Control.
More Details
Key Features
Applications
FAQ
This precision Idle Air Control Valve is designed for BMW E23, E24, E28, E30, E32, E34 models across 3, 5, 6, and 7 Series platforms. Built to OE reference numbers including 0280140509 and 134111286065, it delivers accurate idle speed regulation under varying engine loads. The internal stepper motor system provides fast response to ECU commands, ensuring stable combustion during cold starts and traffic idle conditions. Manufactured with aluminum alloy housing and reinforced internal sealing, it resists heat cycling and fuel vapor contamination. Each unit is factory-calibrated to maintain consistent air bypass flow, supporting smooth engine operation and reduced stalling risk.
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Q1: What makes BMW idle control systems sensitive to failure?
Older BMW engines rely heavily on mechanical-air control at idle, making them sensitive to carbon buildup or vacuum irregularities.
Q2: Can this valve fix high idle issues?
Yes, if the issue is caused by a stuck or slow-response IAC valve. However, vacuum leaks should also be checked.
Q3: Is this compatible across all listed BMW models?
It fits multiple M20, M30 engine platforms depending on OE reference match. Always confirm part number before installation.
Q4: What are common failure symptoms?
High idle (1500–2000 RPM), engine stalling when stopping, or unstable RPM fluctuations at warm idle.
Q5: Does installation require adaptation?
No coding is required, but ECU idle adaptation reset is recommended after installation.
Q6: Can cleaning restore function instead of replacement?
In early-stage clogging cases, cleaning may help, but worn internal gears or motors require replacement.
Wenzhou Guocheng Automobile Electrical Parts Co., Ltd.
Wenzhou Guocheng Automobile Electrical Parts Co., Ltd. is located in Wenzhou, Zhejiang Province, known as China's capital of auto parts. Established in 1997, the company covers a land area of 3,000 square meters with a built-up area of 10,000 square meters. It is a privately-owned enterprise integrating product development, production, and sales.
Our core products include idle speed motors, idle control valves, throttle position sensors, and other sensor series primarily used in automotive and construction machinery engines. To ensure superior quality, key components such as sensor brushes are imported from Japan and Germany, while films are custom-produced by top-tier domestic and international suppliers. Our products are already supplied to first-tier brands both in China and abroad, and our annual production and sales volume holds a significant position in the OEM market.
To meet production demands and customer requirements, we have continuously invested in advanced production, testing, and experimental equipment from both domestic and international sources. This has significantly enhanced our production inspection and testing capabilities, ensuring consistent and reliable product quality. Currently, we have over 80 employees, including 6 experienced technical engineers and 8 professional technical and inspection personnel, providing strong support for product development and quality control.
Since its inception, the company has adhered to the quality policy of "Continuous Learning, Technological Innovation, Pursuit of Excellence, and Customer Satisfaction." We uphold a "people-oriented" talent philosophy and emphasize a customer-centric approach in quality management, focusing on process control, prevention, continuous improvement, and customer satisfaction. Since 2007, the company has been certified with ISO 9001:2000 and ISO/TS 16949:2009 international quality management system standards.
Over the years, through relentless efforts, innovation, and improvement, Guosheng has earned consistent praise from both new and existing customers for its exceptional product quality, comprehensive service, and competitive pricing. To achieve greater development, our team remains committed to striving harder, learning humbly, and making continuous progress. We constantly summarize experiences and enhance product quality while working with passion and sincerity to collaborate with partners worldwide for mutual success. We sincerely welcome your valuable feedback and visits for guidance.
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