The BMW 3 Series E46 was produced between 1997 and 2006 with the N40 engine code. The crankshaft oil seal is a critical component to prevent oil leaks from the engine. This part helps maintain oil pressure while ensuring the engine operates efficiently. Recognized by the code ELRING 257.400, this oil seal is an important part of the engine's oil system and contributes to the longevity of the engine.
Product Features and Benefits
- OEM Compatibility: ELRING is manufactured according to original equipment standards and fully complies with BMW service standards.
- Material Quality: Made from high-quality elastomer material, making it resistant to wear and chemicals.
- Durability and Lifespan: Can last up to 100,000 km under normal usage conditions. Resistant to temperature fluctuations.
- Performance: Prevents oil leaks while maintaining oil pressure, thus enhancing engine efficiency.
- Testing and Certification: Certified with ISO 9001 and TS 16949, ensuring high quality and reliability.
Technical Details
| Manufacturer Brand | ELRING |
| Product Code (OE/OEM) | 257.400 |
| Part Type | Crankshaft Oil Seal |
| Production Standard | OE equivalent / OEM |
| Origin | Germany |
| System | Engine |
Vehicle Compatibility
This crankshaft oil seal is compatible with BMW 3 Series E46 models with the N40 engine code. It is specifically designed for E46 chassis code vehicles produced between 1997 and 2006. This part is one of the most critical components of the engine's oil system, preventing leaks and ensuring the engine operates healthily.
- Chassis code: E46
- Engine code: N40
- Production year range: 1997-2006
- Trim/Variant: All variants
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. It is also a supplier for BMW, and therefore ELRING parts comply with the standards used in BMW factories. Quality assurance is provided with ISO 9001 and TS 16949 certifications. These parts, produced in Germany, offer high durability and performance.
Installation and Usage Notes
The installation of the crankshaft oil seal must be done carefully. Caution should be taken when removing the old seal, and it is important to clean the surfaces before installing the new seal. Generally, this part should be checked and replaced during engine oil changes. It is recommended to pay attention to the torque value during installation. Additionally, this part should be checked when signs of oil leaks are observed.
Frequently Asked Questions
In which E46 models is this crankshaft oil seal used?
This oil seal is used in all variants of the BMW 3 Series E46 model with the N40 engine code. It is specifically designed for E46 chassis code vehicles produced between 1997 and 2006.
Is it original or aftermarket?
ELRING is a brand that supplies original equipment for BMW. It is equivalent in quality to original parts and offers reliable performance.
How many km does this crankshaft oil seal last / when should it be replaced?
Under normal conditions, this oil seal can last up to 100,000 km. It is recommended to check it when oil leaks are observed or during engine oil changes.
Can I install it myself, or do I need to take it to a professional?
Since the installation process requires technical knowledge, it is recommended to have it done at an authorized service. However, experienced users can also install it themselves with the necessary tools.
How long does 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 detailed information, you can contact our WhatsApp support line.
Advantages of German Parts Warehouse: Same day shipping, 14-day return right, 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 contact line with your vehicle's chassis number, we will quickly provide you with the correct OE/equivalent part as a quote.
