The Mercedes S Class W221 model was produced between 2005-2013 with the M157 engine code. The oil pump chain in this model is a critical component to ensure the proper functioning of the engine's oil pump. The oil pump chain increases the engine's oil pressure, allowing the engine oil to reach all parts. This part is essential for extending the engine's lifespan and enhancing its performance. The oil pump chain with the FEBI 25446 code is necessary for the healthy operation of the engine's lubrication system and increases the reliability of the engine system.
Product Features and Benefits
- OEM Compatibility: This oil pump chain is manufactured in accordance with Mercedes' original equipment standards. It provides excellent fit with parts placement compatibility in authorized service centers.
- Material Quality: Made from high-quality steel and special alloys, enhancing its durability and ensuring a long lifespan.
- Durability and Lifespan: Typically lasts up to 100,000 km and performs reliably even in harsh temperature conditions.
- Performance: By increasing the engine's oil pressure, it enhances the effectiveness of the lubrication system, thereby improving the overall performance of the engine.
- Testing and Certification: FEBI meets high-quality standards with ISO 9001 and TS 16949 certifications.
Technical Details
| Manufacturer Brand | FEBI |
| Product Code (OE/OEM) | 25446 |
| Part Type | Oil Pump Chain |
| Production Standard | OE equivalent / OEM |
| Origin | Germany |
| System | Engine |
Vehicle Compatibility
The FEBI 25446 oil pump chain is compatible with vehicles of the Mercedes S Class W221 chassis code. This part can be used with all variants that have the M157 engine code. Vehicles produced between 2005 and 2013 can maintain the healthy operation of their engines using this oil pump chain.
- Chassis code: W221
- Engine code: M157
- Production year range: 2005-2013
- Equipment/Variant: All variants
It is recommended to confirm with our support line using your 17-digit VIN (chassis) number for the correct part selection.
Quality and Warranty
FEBI is a recognized brand in the spare part market, serving as an OE supplier to prestigious brands like Mercedes. It meets quality standards with ISO 9001, TS 16949, and IATF 16949 certifications. These parts, produced in Germany, adhere to high engineering standards and quality.
Installation and Usage Notes
The installation of the oil pump chain should be performed by professionals. The most important point to pay attention to during installation is the correct placement of the oil pump. It is generally recommended to check the oil pump chain every 100,000 km. Additionally, it is advisable to use a new gasket during installation. More frequent checks may be necessary for city driving.
Frequently Asked Questions
Which W221 models use this oil pump chain?
The FEBI 25446 oil pump chain is used in all M157 engine variants of the Mercedes S Class W221 chassis code. These models were produced between 2005-2013.
Original or aftermarket?
FEBI is an original equipment (OE) manufacturer for Mercedes. This part, which has high-quality standards, is much more reliable and long-lasting compared to aftermarket products.
How many km does this oil pump chain last / when should it be replaced?
The FEBI 25446 oil pump chain typically lasts up to 100,000 km. Signs of wear include a drop in engine oil pressure and abnormal noises.
Can I install it myself, or do I need to take it to a professional?
The installation of the oil pump chain is a task that should be performed by professionals. If you do not have the necessary tools and knowledge, it is advisable to consult an authorized service.
How long does it take to arrive, do I have the right to return it?
Our orders are shipped on the same day. You have the right to return within 14 days. For details, you can contact our support line.
German Parts Warehouse Advantages: Same day shipping, 14-day return policy, e-archive invoicing, WhatsApp expert support line (wa.me/905382927219). Our stock information is updated in real-time; your order is only confirmed from items physically available. If you write to our support line with your vehicle's chassis number, we will quickly provide you with a quote for the correct OE/equivalent part.
