The Mercedes CLS Series W257 is a premium sedan model produced between 2018 and 2023. The upper cover gasket used in this model is an important part responsible for ensuring the oil seal within the engine. For the engine to operate efficiently, this gasket must function properly. This part, coded FEBI 174033, is manufactured to original equipment quality and constitutes an important component of the engine's sealing system.
Product Features and Benefits
- OEM Compatibility: This upper cover gasket is produced in accordance with Mercedes' authorized service standards and is fully compatible with original equipment.
- Material Quality: Made from high-quality elastomer material, it is durable due to its temperature and chemical resistance.
- Durability and Lifespan: This part can withstand up to 100,000 km under normal usage conditions and shows resistance to engine temperature fluctuations.
- Performance: By ensuring the engine's sealing, it prevents oil losses, thereby enhancing engine performance and improving fuel efficiency.
- Testing and Certification: Manufactured in compliance with ISO 9001 and TS 16949 standards, ensuring quality and reliability.
Technical Details
| Manufacturer Brand | FEBI |
| Product Code (OE/OEM) | 174033 |
| Part Type | Upper Cover Gasket |
| Production Standard | OE equivalent / OEM |
| Origin | Germany |
| System | Engine |
Vehicle Compatibility
The upper cover gasket coded FEBI 174033 is compatible with the following Mercedes CLS Series W257 models. This part plays a critical role in ensuring the engine's sealing. The W257 series holds a significant place in the luxury sedan segment, and the quality of this part affects the overall performance of the vehicle.
- Chassis Code: W257
- Engine Code: OM654
- Production Year Range: 2018-2023
- Trim/Variant: CLS 350d, CLS 450
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 been active in the automotive spare parts industry for many years and is known for its high-quality products. As an OE supplier for Mercedes-Benz, parts from this brand undergo strict quality control processes. Reliability is proven with ISO 9001, TS 16949, and IATF 16949 certifications. These parts, produced in Germany, are designed to deliver high performance in the luxury vehicle segment.
Installation and Usage Notes
The upper cover gasket must be carefully placed during the installation of the engine's upper cover. During installation, ensure that the surfaces are clean and dry. Torque values should be adjusted according to manufacturer recommendations. This part should typically be checked during engine oil changes and replaced if necessary. Additionally, it is recommended to check the upper cover bolts simultaneously to maintain sealing properties.
Frequently Asked Questions
Which W257 models use this upper cover gasket?
The upper cover gasket coded FEBI 174033 is used in Mercedes CLS Series W257 models, specifically in the CLS 350d and CLS 450 engines.
Is it original or aftermarket?
FEBI is a brand with OE manufacturer status for Mercedes-Benz. Therefore, the FEBI 174033 part is an original quality product and offers higher durability and performance compared to aftermarket parts.
How long does this upper cover gasket last / when should it be replaced?
The FEBI 174033 upper cover gasket can last up to 100,000 km under normal usage conditions. However, it is recommended to replace it if engine leaks or signs of wear are observed.
Can I install it myself, or do I need to take it to a professional?
The installation of this upper cover gasket is a process that requires engine expertise. It is recommended to consult a professional with the necessary tools.
How long does it take to arrive, do I have a return right?
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.
Advantages of German Parts Warehouse: 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 the correct OE/equivalent part as a quote.
