The Mercedes S Class W221 is a luxury sedan model equipped with the OM642 engine. This vehicle was produced between 2005 and 2013. The cylinder head bolt set is an essential component that securely fastens the engine's cylinder head to the engine block. This part plays a critical role in ensuring the engine's sealing and enhancing engine performance. Known by the code ELRING 372.940, this set is necessary for the healthy operation of the engine, making it important to use a high-quality component in your vehicle. The cylinder head bolt set is a vital part of the engine system.
Product Features and Benefits
- OEM Compatibility: As an original equipment manufacturer, ELRING guarantees that this set is produced in accordance with Mercedes standards. The part ensures perfect fitment to the vehicle's engine.
- Material Quality: These bolts are made from high-quality steel with a special coating, ensuring longevity and durability. They are resistant to wear and corrosion.
- Durability and Lifespan: This bolt set can last up to 100,000 km under normal usage conditions. It is resistant to high temperatures and pressures.
- Performance: With proper installation, it enhances engine sealing, thereby improving engine performance and fuel efficiency.
- Testing and Certification: ELRING manufactures in compliance with ISO 9001 and TS 16949 standards. The product undergoes strict quality control processes.
Technical Details
| Manufacturer Brand | ELRING |
| Product Code (OE/OEM) | 372.940 |
| Part Type | Cylinder Head Bolt Set |
| Production Standard | OE equivalent / OEM |
| Origin | Germany |
| System | Engine |
Vehicle Compatibility
This cylinder head bolt set is compatible with the Mercedes S Class W221 model. It is designed for vehicles with the OM642 engine code. This set can be used in all W221 models produced between 2005 and 2013. This model stands out with its luxury features and powerful engine.
- Chassis code: W221
- Engine code: OM642
- Production year range: 2005-2013
- Trim/Variant: Luxury Sedan
It is recommended to confirm with our contact line using your 17-digit VIN (chassis) number for the correct part selection.
Quality and Warranty
ELRING is a brand that supplies original equipment to many automotive manufacturers worldwide. Based in Germany, this company is known for its high-quality standards. It offers quality assurance with ISO 9001 and TS 16949 certifications. ELRING manufactures OE parts for prestigious brands like Mercedes-Benz, which contributes to its high reputation in the industry.
Installation and Usage Notes
The installation of this cylinder head bolt set should be performed by professionals. It is important to tighten the bolts to the correct torque value during installation. Generally, cylinder head bolts should be checked during engine oil changes and replaced if necessary. Additionally, it is recommended to use the appropriate gasket during the installation of these bolts. Regular maintenance is required to maintain engine performance during long journeys and heavy city traffic conditions.
Frequently Asked Questions
In which W221 models can this cylinder head bolt set be used?
This set can be used in all Mercedes S Class W221 models produced between 2005 and 2013. It is designed for vehicles with the OM642 engine code.
Is it original or aftermarket?
As an original equipment manufacturer, ELRING has high-quality standards. Therefore, parts from the ELRING brand are more durable and reliable compared to aftermarket products.
How many km does this cylinder head bolt set last / when should it be replaced?
This set can last up to 100,000 km under normal usage conditions. It should be replaced if there are issues with engine sealing or signs of wear are observed.
Can I install it myself, or do I need to take it to a mechanic?
The installation should be performed by professionals. It is recommended to consult an authorized service due to the need for correct torque tightening and the use of appropriate gaskets.
How long will it take to arrive, do I have the right to return?
Orders are shipped on the same day. You have the right to return within 14 days. Sales are conducted with e-archive invoices.
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 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.
