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OnBuy.com£85.51Visit shop Fuel Pressure Regulator For - 0438161001 125136 0000780392 A0000780392 W124 W201 W126 R129 W123 6031969135278
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The Bosch 0438161001 Fuel Pressure Regulator is an essential component designed for vehicle owners and mechanics seeking to restore or maintain consistent fuel delivery within specific automotive fuel systems. This high-quality replacement part ensures your engine receives the precise pressure needed for optimal combustion and long-term reliability. While it offers excellent durability and performance, users should verify exact vehicle compatibility using their engine code or VIN before purchase, as fuel systems are highly model-specific.
| Model Part Number | 0438161001 |
|---|---|
| Brand | Bosch |
Common signs include hard starting, black smoke from the exhaust, reduced fuel efficiency, and sluggish engine performance.
No, this regulator (0438161001) is designed for specific applications. Always cross-reference your vehicle's part number or VIN with the Bosch catalog.
If you are comfortable with basic automotive tools and following a service manual, it is a straightforward replacement. If you are unsure, consult a professional mechanic.
Bosch regulators are factory-calibrated. Once installed correctly, they do not require manual adjustments.
You typically need basic socket sets, a fuel line pressure gauge for verification, and shop towels to catch residual fuel.
Verify that no air bubbles are trapped in the fuel line and ensure all vacuum lines connected to the regulator are free of cracks or blockages.
Check the O-ring for proper seating. If the O-ring was pinched during installation, it must be replaced to ensure a proper seal.
To install this regulator, ensure the vehicle's engine is cool and the fuel system has been safely depressurized according to your vehicle's service manual. Always clean the surrounding area before removing the old unit to prevent debris from entering the fuel rail. When mounting the new Bosch regulator, ensure all O-rings are seated correctly and lubricated with a light coating of clean engine oil or fuel-compatible lubricant to prevent tearing during assembly. After installation, cycle the ignition key to the 'On' position several times without starting the engine to prime the system and check for leaks. Regularly inspect the fuel lines and vacuum connections associated with the regulator as part of your routine vehicle maintenance.
