The Mercedes R Series W251 model is a vehicle produced between 2005 and 2017. The M156 engine used in this vehicle is a high-performance V8 engine. The valve shaft seal plays a critical role in ensuring the sealing of the engine's valve system. This part prevents oil from leaking out of the engine and contributes to the efficient operation of the engine. A quality valve shaft seal extends the engine's lifespan and enhances its performance. Known by the code ELRING 403.730, this part is an important component of the engine's valve system.
Product Features and Benefits
- OEM Compatibility: ELRING, as an original equipment manufacturer, produces this valve shaft seal to high standards. The part fully complies with the compatibility criteria set by authorized Mercedes service centers.
- Material Quality: This part is made from high-quality elastomer material. Its durability and temperature resistance provide long-lasting use.
- Durability and Lifespan: The ELRING valve shaft seal can withstand up to 100,000 km. It retains its effectiveness even under extreme temperature and pressure conditions.
- Performance: This part increases the engine's efficiency by ensuring oil tightness. It reduces fuel consumption and keeps emissions under control.
- Testing and Certification: ELRING is a manufacturer with ISO 9001 and TS 16949 certifications. The production process is monitored to comply with high-quality standards.
Technical Details
| Manufacturer Brand | ELRING |
| Product Code (OE/OEM) | 403.730 |
| Part Type | Valve Shaft Seal |
| Production Standard | OE equivalent / OEM |
| Origin | Germany |
| System | Engine |
Vehicle Compatibility
This valve shaft seal is compatible with the M156 engine of the Mercedes R Series W251 model. Vehicles produced between 2005 and 2017 stand out with their high performance and comfort features. This part improves the driving experience by enhancing the engine's efficiency.
- Chassis code: W251
- Engine code: M156
- Production year range: 2005-2017
- Trim/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
ELRING is a globally recognized original equipment (OE) supplier. They manufacture OE parts for prestigious brands like Mercedes-Benz. Their production facilities are located in Germany and hold ISO 9001, TS 16949, and IATF 16949 certifications. ELRING is a reliable name in the spare part market with high-quality standards.
Installation and Usage Notes
The installation of the valve shaft seal should be performed by professionals. Since the part is located within the engine's internal structure, proper placement is crucial. During installation, remnants of the old seal should be cleaned, and the new seal should be carefully placed. Additionally, the connection points around the seal should also be checked. This part should be inspected during engine oil changes.
Frequently Asked Questions
In which W251 models is this valve shaft seal used?
This valve shaft seal is used in all variants of the Mercedes R Series W251 model. It is specifically designed for versions with the M156 engine.
Is it original or aftermarket?
ELRING is an original equipment manufacturer. This valve shaft seal is produced in accordance with Mercedes-Benz standards and has a quality difference from aftermarket products.
How many km does this valve shaft seal last / when should it be replaced?
The ELRING valve shaft seal typically lasts up to 100,000 km. Signs of wear include oil leakage and a decrease in engine performance.
Can I install it myself, or do I need to take it to a mechanic?
It is recommended that installation be performed by professionals. Proper placement and installation of the part are critical for the engine's efficiency.
How long will it take to arrive, do I have a return right?
Your order will be shipped the same day. You have a 14-day return right. For details, you can contact our WhatsApp 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.
