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Hella 008188071 Diesel Glow Plug Controller
Diesel Glow Plug Control for Mercedes-Benz
Hella 008188071 is a 12-volt diesel glow plug controller built for precise pre-glow and after-glow operation. It uses external temperature measurement to help manage cold-start heating based on engine conditions, making it a direct-fit service part for select Mercedes-Benz diesel applications.
Compatible With Mercedes-Benz S350, 300SD, 350SD, and 350SDL applications, this controller supports reliable glow plug timing for hard-start complaints and cold-weather diesel operation. The Hella 008188071 part number is also referenced in OE-style interchange listings for cross-checking during replacement.
Key Features
- 12-volt diesel glow plug controller
- After-glow capable design for extended post-start heating
- 9-second pre-glow time specification
- 12-pole electrical connection
- External temperature measurement input
- Hella 008188071 replacement part
Detailed Product Overview
HELLA 008188071 is a diesel glow plug controller engineered to manage glow plug activation during cold starts and the warm-up phase. The unit’s after-glow capability helps maintain combustion support after the engine starts, while the external temperature measurement feature allows the controller to respond to ambient conditions. This makes it a practical replacement for Mercedes-Benz diesel models that rely on accurate glow plug timing for dependable starting and smoother initial operation.
This part fits 1994-1995 Mercedes-Benz S350, 1992-1993 Mercedes-Benz 300SD, 1991 Mercedes-Benz 350SD, and 1990-1991 Mercedes-Benz 350SDL. If you are searching for a Mercedes-Benz diesel glow plug controller 12V or a Hella 008188071 replacement for these applications, this unit matches the listed fitment and electrical specifications.
This part cross-references Febi-Bilstein 34452 for the same application.
Common Issues This Part Can Address
- Extended cranking during cold starts
- Glow plug timing faults in diesel starting systems
- Rough initial idle after startup
- Loss of after-glow function
- Temperature-related glow plug control issues
Installation Notes and Tips
Verify the vehicle’s year, model, and electrical connector count before replacement. Confirm the 12-volt system specification and compare the existing controller’s pole count and temperature-sensing setup to the listed details. For best results, inspect the glow plugs, wiring, and related relays during diagnosis so the new controller is not installed into a system with unresolved faults.
Quality Assurance
HELLA is a recognized automotive electrical brand with OE-level application coverage across many vehicle systems. Part number 008188071 is listed with confirmed Mercedes-Benz diesel fitment and matching technical specifications for replacement selection.
| Brand | Hella |
| Part Number | 008188071 |
| Position | HELLA |
| Glow Plug Design | After-glow capable |
| Number of Poles | 12 |
| Pre-Glow Time [sec.] | 9 |
| Rated Voltage [V] | 12 |
| Supplementary Article/Supplementary Info | With external temperature measurement |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1995 | Mercedes-Benz | S350 | Base | 3.4L | L6 | N/A | Rated Voltage [V]: 12; Supplementary Article/Supplementary Info: with external temperature measurement; Number of Poles: 12; Glow Plug Design: after-glow capable / Pre-Glow Time [sec.]: 9; HELLA |
| 1994 | Mercedes-Benz | S350 | Base | 3.4L | L6 | N/A | Rated Voltage [V]: 12; Supplementary Article/Supplementary Info: with external temperature measurement; Number of Poles: 12; Glow Plug Design: after-glow capable / Pre-Glow Time [sec.]: 9; HELLA |
| 1993 | Mercedes-Benz | 300SD | Base | 3.4L | L6 | N/A | Rated Voltage [V]: 12; Supplementary Article/Supplementary Info: with external temperature measurement; Number of Poles: 12; Glow Plug Design: after-glow capable / Pre-Glow Time [sec.]: 9; HELLA |
| 1992 | Mercedes-Benz | 300SD | Base | 3.4L | L6 | N/A | Rated Voltage [V]: 12; Supplementary Article/Supplementary Info: with external temperature measurement; Number of Poles: 12; Glow Plug Design: after-glow capable / Pre-Glow Time [sec.]: 9; HELLA |
| 1991 | Mercedes-Benz | 350SD | Base | 3.4L | L6 | N/A | Rated Voltage [V]: 12; Supplementary Article/Supplementary Info: with external temperature measurement; Number of Poles: 12; Glow Plug Design: after-glow capable / Pre-Glow Time [sec.]: 9; HELLA |
| 1991 | Mercedes-Benz | 350SDL | Base | 3.4L | L6 | N/A | Rated Voltage [V]: 12; Supplementary Article/Supplementary Info: with external temperature measurement; Number of Poles: 12; Glow Plug Design: after-glow capable / Pre-Glow Time [sec.]: 9; HELLA |
| 1990 | Mercedes-Benz | 350SDL | Base | 3.4L | L6 | N/A | Rated Voltage [V]: 12; Supplementary Article/Supplementary Info: with external temperature measurement; Number of Poles: 12; Glow Plug Design: after-glow capable / Pre-Glow Time [sec.]: 9; HELLA |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.