This oxygen sensor, compatible with Mercedes R Series W251 vehicles with M156 engine code, was produced between 2005-2017. Oxygen sensors optimize the engine's air-fuel mixture, increasing fuel efficiency and reducing emissions. This part plays a critical role in maintaining engine performance and providing an environmentally friendly driving experience. A high-quality spare part is offered under the FEBI 177388 code. This part interacts directly with the engine management system and optimizes the vehicle's fuel consumption.
Product Features and Benefits
- OEM Compatibility: FEBI is manufactured in accordance with original equipment standards. This ensures perfect fitment of the part and full integration with the vehicle's engine management system.
- Material Quality: This oxygen sensor is produced using high-quality materials, highlighting its durability. It is resistant to heat and chemical effects.
- Durability and Lifespan: Typically has a lifespan of 80,000-120,000 km. It is resistant to high temperatures and harsh conditions.
- Performance: It optimizes fuel consumption while reducing the engine's emission values, providing an environmentally friendly driving experience.
- Testing and Certification: Manufactured in accordance with ISO 9001 and TS 16949 standards, ensuring quality assurance.
Technical Details
| Manufacturer Brand | FEBI |
| Product Code (OE/OEM) | 177388 |
| Part Type | Oxygen Sensor |
| Production Standard | OE equivalent / OEM |
| Origin | Germany |
| System | Engine |
Vehicle Compatibility
Compatible with Mercedes R Series W251 vehicles produced with M156 engine code. This oxygen sensor is used in models manufactured between 2005-2017. Vehicles from this period are designed with high performance and low emissions in mind.
- Chassis code: W251
- Engine code: M156
- Production year range: 2005-2017
- Trim/Variant: R Series
It is recommended to confirm with our contact line using your 17-digit VIN (chassis) number for the correct part selection.
Quality and Warranty
FEBI has been recognized as an OE supplier for many years, providing parts to various automotive brands. It offers quality assurance with ISO 9001, TS 16949, and IATF 16949 certifications. FEBI's manufacturing facilities are located in Germany, ensuring high-quality products. Oxygen sensors are among the most critical components of the engine management system, making FEBI's quality essential for your vehicle's performance.
Installation and Usage Notes
The installation of the oxygen sensor is critical for optimizing the engine's air-fuel mixture. During installation, ensure that the sensor is correctly positioned. It is generally recommended to check it along with the engine oil change. A torque value of 30 Nm is suggested. Additionally, it is advisable to replace the gasket during the sensor installation. Depending on the vehicle's usage conditions, it may need to be checked more frequently during city driving.
Frequently Asked Questions
In which W251 models is this oxygen sensor used?
This oxygen sensor is used in all Mercedes R Series W251 models produced between 2005-2017. It is particularly compatible with parts that have the M156 engine code.
Is it original or aftermarket?
FEBI is known as an original equipment manufacturer. Therefore, the FEBI 177388 oxygen sensor is of original part quality and offers better performance compared to aftermarket products.
How many km does this oxygen sensor last / when should it be replaced?
The FEBI 177388 oxygen sensor typically has a lifespan of 80,000-120,000 km. Signs of wear include a decrease in engine performance and increased fuel consumption.
Can I install it myself, or do I need to take it to a mechanic?
The installation of the oxygen sensor may be easy for an experienced user. However, due to the engine's sensitive structure, it is recommended to seek assistance from a professional.
How long does it take to arrive, do I have a return right?
Your orders are shipped the same day. You have the right to return within 14 days. Additionally, sales are made with e-archive invoices.
Advantages of German Parts Warehouse: Same day shipping, 14-day return policy, e-archive invoiced sales, WhatsApp expert support line (wa.me/905382927219). Our stock information is updated in real-time; your order is confirmed only for items physically available. If you write to our contact line with your vehicle's chassis number, we will quickly provide you with the correct OE/equivalent parts as a quote.
