Bosch 0250201036 Heater Coolant Heater Glow Plug

Bosch Coolant Heater Glow Plug for VW Diesel Applications

Bosch 0250201036 is a coolant heater glow plug built for diesel engine cold-start performance. It uses Bosch Duraterm dual-control coil technology to shorten glow time and bring the element up to operating temperature quickly, helping support faster starts in cold conditions.

Compatible With 2000-2004 Volkswagen Golf, 2000-2004 Volkswagen Jetta, and 2000-2003 Volkswagen Beetle, this Bosch coolant heater glow plug is engineered for direct-fit service on listed applications.

Key Features

• Bosch part number 0250201036
• Duraterm dual-control coil design for self-regulating heating
• Reduced pre-glow wait time for quicker engine start-up
• Inconel material for high-temperature durability
• Pin terminal, tapered seat, and 12 mm thread diameter
• Fast/quick start design with metal sheath construction
• Pre-heating time: 4.0 seconds

Product Details

Bosch 0250201036 is part of the Coolant Heater Glow Plug line, a product line focused on diesel cold-start control and efficient heat delivery. The dual heating and regulating coil system manages current flow so the glow plug reaches temperature quickly, which supports smoother starting and more efficient post-glow operation on vehicles equipped with post-incandescence control. This Bosch glow plug is a fitment-based replacement for Volkswagen Golf, Volkswagen Jetta, and Volkswagen Beetle diesel applications listed above.

This part cross-references N10302102 for the same application.

What It Helps Address

• Hard starting in cold weather
• Extended glow indicator wait time
• Slow combustion chamber warm-up during diesel start
• Rough initial idle after startup
• Reduced efficiency during post-glow operation

Installation Notes

Verify thread diameter, reach, seat type, terminal style, and overall length before installation. Confirm the vehicle uses the listed coolant heater glow plug application and inspect the cylinder head or heater bore for carbon buildup or damage before fitting Bosch 0250201036. Use proper torque procedures for tapered-seat glow plugs and follow the vehicle service manual for electrical testing and replacement steps.

Quality Assurance

Bosch applies its diesel fuel-injection and glow plug engineering experience to this Duraterm design, with a focus on controlled current flow, faster heat-up, and stable operation in diesel starting systems.