The Mercedes S Class W140 is a model produced with the M104 engine code and was available from 1991 to 1998. This thermostat regulates the engine's operating temperature, ensuring efficient engine performance. It prevents the engine from overheating, thereby extending its lifespan. Known by the code FEBI 09671, this part belongs to the engine cooling system and is made from high-quality materials.
Product Features and Benefits
- OEM Compatibility: This thermostat is manufactured in accordance with original equipment standards. It matches the standards used in authorized service centers.
- Material Quality: It is produced using special materials with high-temperature resistance. Its durability ensures long-term use.
- Durability and Lifespan: The estimated lifespan of the thermostat can reach up to 100,000 km, depending on the vehicle's usage conditions. It is resistant to extreme temperatures.
- Performance: By maintaining the engine temperature at an optimal level, it increases fuel efficiency and reduces emissions.
- Testing and Certification: It is produced in accordance with ISO 9001 and TS 16949 standards. It has passed quality tests and has been approved.
Technical Details
| Manufacturer Brand | FEBI |
| Product Code (OE/OEM) | FEBI 09671 |
| Part Type | Thermostat |
| Production Standard | OE equivalent / OEM |
| Origin | Germany |
| System | Engine Cooling System |
Vehicle Compatibility
This thermostat is compatible with vehicles of the Mercedes S Class W140 chassis code. These vehicles, operating with the M104 engine code, were produced between 1991 and 1998. This model stands out with its features that offer luxury and comfort. The thermostat enhances engine performance by regulating the engine temperature.
- Chassis code: W140
- Engine code: M104
- Production year range: 1991-1998
- Trim/Variant: Luxury Sedan
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 has many years of experience in the automotive spare part industry and supplies original equipment to many car manufacturers. Holding ISO 9001, TS 16949, and IATF 16949 certifications, FEBI meets high-quality standards. Its production facilities are located in Germany, and it manufactures OE parts for many vehicle brands.
Installation and Usage Notes
The most important point to consider during the installation of the thermostat is to ensure that the engine is cold. It is recommended to replace the gasket during installation. A torque value of 10 Nm is advised. Additionally, the coolant level should be checked during the installation of the thermostat. Since this part is a component of the engine cooling system, it is advisable to check it along with other cooling components.
Frequently Asked Questions
Which W140 models use this thermostat?
This thermostat is used in all M104 engine models of the Mercedes S Class W140 chassis code. It is designed for vehicles produced between 1991 and 1998.
Is it original or aftermarket?
FEBI is an original equipment manufacturer and adheres to high-quality standards. Therefore, the FEBI 09671 thermostat is of original part quality.
How many km does this thermostat last / when should it be replaced?
The average lifespan of the thermostat is 100,000 km. However, it is recommended to replace it if the engine overheats or if abnormalities are observed in the coolant.
Can I install it myself, or do I need to take it to a mechanic?
The thermostat installation can be done with basic hand tools. However, due to the sensitivity of the engine cooling system, it is advisable to consult a professional.
How long does it take to arrive, do I have a return right?
Orders are shipped the same day. You have the right to return within 14 days. You can get information from 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 in stock. If you write to our support line with your vehicle's chassis number, we will quickly provide you with the correct OE/equivalent part as a quote.
