

Mercedes C Series W203 OM646 Automatic Gearbox Gasket Set | ELRING 428.390
Mercedes C-Class W203 OM646 Automatic Transmission Gasket Set
ELRING 428.390 | Original Equipment (OEM) | 100% German Quality
The Mercedes C-Class W203 models with engine code OM646 were produced between 2000-2007. This automatic transmission gasket set plays a critical role in ensuring the sealing of the vehicle's transmission system. Gaskets that wear out or become damaged over time can cause transmission fluid to leak, which can negatively affect transmission performance. Therefore, using the ELRING 428.390 gasket set is essential for the healthy operation of the vehicle's transmission system. This part is a component of the automatic transmission system.
Product Features and Benefits
- OEM Compatibility: As an original equipment manufacturer, ELRING guarantees that this gasket set is produced in accordance with Mercedes' authorized service standards. The part fit and compatibility are excellent.
- Material Quality: The gaskets are made from high-quality elastomer material, offering longevity and durability. This material is resistant to temperature changes and chemical effects.
- Durability and Lifespan: The ELRING gasket set can withstand up to 100,000 km under normal usage conditions. It has high resistance to temperature fluctuations and wear conditions.
- Performance: This gasket set enhances the sealing of the automatic transmission system, improving the overall performance of the vehicle. By preventing transmission fluid leaks, it extends the lifespan of the transmission.
- Testing and Certification: ELRING, certified with ISO 9001 and TS 16949, manufactures in accordance with high-quality standards. This product has undergone strict quality control tests.
Technical Details
| Manufacturer Brand | ELRING |
| Product Code (OE/OEM) | 428.390 |
| Part Type | Automatic Transmission Gasket Set |
| Production Standard | OE equivalent / OEM |
| Origin | Germany |
| System | Automatic Transmission |
Vehicle Compatibility
This automatic transmission gasket set is compatible with Mercedes C-Class W203 chassis code and OM646 engine code vehicles. Models produced between 2000-2007 require this gasket set to ensure the sealing of the automatic transmission system. It is especially recommended to replace this part in high-mileage vehicles to prevent issues such as transmission fluid leaks.
- Chassis code: W203
- Engine code: OM646
- Production year range: 2000-2007
- 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 recognized for its many years of experience in the automotive spare part industry. Supplying original equipment (OE) to prestigious brands like Mercedes, ELRING holds ISO 9001 and TS 16949 certifications. This gasket set, produced in Germany, is designed and manufactured according to high-quality standards. ELRING is known for its reputation, reliability, and quality in the industry.
Installation and Usage Notes
The installation of this automatic transmission gasket set should be performed by qualified technicians. During installation, it is important to completely remove the old gaskets and clean the surfaces. Torque values should be adjusted according to the manufacturer's recommendations. Regular maintenance of the transmission should be performed at specified intervals, and the gasket set should be replaced as needed. Additionally, the oil level should be checked to ensure proper sealing.
Frequently Asked Questions
In which W203 models can this automatic transmission gasket set be used?
This automatic transmission gasket set can be used in all models of the Mercedes C-Class W203 chassis code and OM646 engine code. It is suitable for vehicles produced between 2000-2007.
Is it original or aftermarket?
ELRING is a brand that supplies OE to Mercedes as an original equipment manufacturer. Therefore, this gasket set offers original quality and performance.
How many km does this automatic transmission gasket set last / when should it be replaced?
This gasket set can last up to 100,000 km under normal usage conditions. However, it should be replaced immediately if signs of leakage are observed or if the transmission fluid level is low.
Can I install it myself, or do I need to take it to a mechanic?
The installation of this automatic transmission gasket set is recommended to be done by qualified technicians. Special tools and knowledge are required for proper installation.
How long does it take to arrive, do I have the right to return?
Your orders are shipped the same day. You have the right to return within 14 days. The invoice is provided as an e-archive, and you can contact our support via our WhatsApp line for assistance.
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 confirmed only 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.
This product is equivalent to the following OEM/original part numbers. You can search by your vehicle's original part number.
- 1402706500 — MERCEDES-BENZ
- A1402706500 — MERCEDES-BENZ
