Hella 008188021 Diesel Glow Plug Relay

Reliable Diesel Glow Plug Relay for Mercedes-Benz 300SD

The Hella Diesel Glow Plug Relay 008188021 is engineered to meet the specific needs of the Mercedes-Benz 300SD diesel engine. Designed to ensure optimal pre-glow timing and electrical performance, this relay supports efficient cold starts and reliable engine operation.

• Number of Poles: 11 for precise electrical connections
• Pre-Glow Time: 9 seconds to optimize glow plug heating
• Rated Voltage: 12V compatible with standard vehicle electrical systems
• Without post-glow time for controlled glow plug operation
• Operates without external temperature measurement for simplified functionality

About the Genuine OE from HELLA Product Line

This relay is part of the Genuine OE from HELLA line, which focuses on delivering original equipment quality and specifications. Products in this line are designed to match or exceed factory standards, ensuring compatibility and durability for your Mercedes-Benz 300SD.

Technical Details and Functionality

The Hella Diesel Glow Plug Relay 008188021 controls the pre-glow phase of the glow plugs, providing a 9-second heating period to prepare the engine for cold starts. With 11 poles, it ensures reliable electrical connections within the vehicle’s emission control system. The relay operates at a rated voltage of 12 volts, matching the electrical system of the Mercedes-Benz 300SD. Notably, this relay functions without post-glow time and does not require external temperature measurement, simplifying its integration and operation.

Common Applications and Problem Resolution

• Ensures proper glow plug activation during cold engine starts
• Prevents extended glow plug heating that can cause premature wear
• Maintains consistent electrical relay performance in emission control systems
• Addresses issues related to glow plug relay failure or intermittent operation
• Supports emission compliance by regulating glow plug timing accurately

Installation Notes and Tips

When installing the Hella Diesel Glow Plug Relay 008188021, verify compatibility with the Mercedes-Benz 300SD model year and engine specifications. Ensure all electrical connections are clean and secure to maintain optimal relay function. Since this relay does not include post-glow timing or external temperature measurement, no additional sensor connections are required.

Quality Assurance and Warranty

As part of the Genuine OE from HELLA product line, this relay meets stringent quality standards for durability and performance. While specific warranty details are not provided here, Hella products typically come with manufacturer-backed warranties to ensure reliability and customer confidence.