Do it yourself
Frequently asked questions about cars and motorcycles

Replacing Valve Stem Seals

Model: BMW Serie 3 E46 - Years: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
Part: Engine

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Video tutorial

To replace the valve stem seals, first obtain a valve spring compressor. This tool allows you to compress the valve return spring, separate the retaining half-shells of the retainer, and then remove the valve.

At this point, remove the old oil seal, clean the seat thoroughly, and insert the new one after generously lubricating it with clean oil. Then, reinstall the valve, spring, and retainer. Compress the spring with the compressor and apply the retaining half-shells.

Repeat the same procedure on the other valves.


Updated on 13 February 2026 by ScegliAuto


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How to Reset the AdBlue Warning Light on a Peugeot Boxer

To reset the AdBlue system on a 2018 Peugeot Boxer, follow these steps: Start the engine and ensure the vehicle is parked in a well-ventilated area. Locate the "MENU" button on the dashboard or steering wheel controls. Press and hold the "MENU" button until the menu options appear on the display. Use the arrow buttons or scroll wheel to access the "Vehicle Settings" or "Settings" menu. Select the "AdBlue" or "AdBlue System" option. Look for the "Recharge" or "Reset" option in the AdBlue menu. Once you find the reset option, select it and confirm your choice when prompted. The system will be reset, and a confirmation message may appear on the display. Turn off the engine and wait a few seconds. Restart the engine and check that the AdBlue system has been reset.

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by ScegliAuto

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