Dorman 916-878 Engine Variable Valve Timing (VVT) Solenoid - Front

Reliable Engine Variable Valve Timing Solenoid for Audi and Volkswagen

The Dorman 916-878 Engine Variable Valve Timing (VVT) Solenoid is designed to restore proper engine timing control in select Audi and Volkswagen models. This 12-volt electromagnetic solenoid ensures precise valve timing adjustments for improved engine performance and efficiency.

• Voltage: 12V for standard automotive electrical systems
• Single male connector with plug and socket type for secure electrical connection
• Durable plastic housing designed for engine compartment conditions
• Two electrical terminals for reliable signal transmission
• Standard replacement grade for dependable operation
• Includes 1 VVT solenoid, 2 gaskets, 2 cam seals, and 2 cam plugs for complete installation

Product Details and Specifications

The Dorman 916-878 VVT solenoid features a plastic housing that withstands engine heat and vibration. Its electromagnetic activation type allows precise control of the variable valve timing system, which is critical for optimizing engine efficiency and emissions. The solenoid connects via a single male plug and socket electrical connector with two terminals, ensuring a secure and stable electrical interface. This part is a standard replacement designed to meet OEM specifications for Audi A4, A4 Quattro, A6, A6 Quattro, Allroad Quattro, Passat, and S4 models.

Compatible Vehicles and Common Applications

• Compatible with Audi A4 and A4 Quattro models requiring VVT solenoid replacement
• Fits Audi A6 and A6 Quattro vehicles with variable valve timing systems
• Suitable for Audi Allroad Quattro and S4 models
• Compatible with Volkswagen Passat models equipped with VVT technology

Common Issues Addressed by the Dorman 916-878 VVT Solenoid

• Irregular or rough engine idle due to faulty valve timing control
• Reduced fuel efficiency caused by improper valve timing adjustments
• Check engine light illumination related to VVT system faults
• Engine performance loss or hesitation during acceleration
• Increased emissions from malfunctioning variable valve timing components

Installation Notes and Tips

Installation of the Dorman 916-878 VVT solenoid requires basic mechanical skills and proper tools. Ensure the engine is cool before beginning work. Replace the included gaskets, cam seals, and cam plugs to maintain a proper seal and prevent oil leaks. Verify electrical connections are secure and free of corrosion. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper operation.

Quality Assurance and Warranty Information

Dorman provides this VVT solenoid as a standard replacement part manufactured to meet or exceed OEM specifications. The product undergoes quality control testing to ensure reliable performance. Warranty coverage details are available through Dorman and typically include protection against defects in materials and workmanship for a specified period.