Elring 797.820 Engine Cylinder Head Gasket

Overview of Elring Engine Cylinder Head Gasket 797.820

The Elring 797.820 engine cylinder head gasket is designed for precise fitment and reliable sealing in various BMW models. Engineered with multilayer steel construction, this gasket ensures durability and optimal performance for engines requiring a 1.5 mm thickness.

• Thickness: 1.5 mm installed thickness
• Gasket Design: Multilayer steel (MLS) for enhanced sealing
• Repair Stage: +0.3 mm for engine rebuilds or resurfacing
• Compatible with a wide range of BMW models including 125i, 335i, 535i, and X5
• Part Number: 797.820 for accurate identification

Technical Details and Features

The Elring 797.820 cylinder head gasket features a multilayer steel (MLS) design, which provides superior sealing capabilities compared to traditional composite gaskets. The 1.5 mm thickness is maintained both as nominal and installed thickness, ensuring consistent compression and preventing leaks. The +0.3 mm repair stage attribute allows this gasket to accommodate minor cylinder head resurfacing, making it suitable for engine rebuilds or repairs on BMW vehicles.

Compatible BMW Models and Applications

This cylinder head gasket is compatible with a broad range of BMW models, including but not limited to the 125i, 135i, 235i, 328i, 335i (including GT and xDrive variants), 435i, 530i, 535i, 640i, 740i, ActiveHybrid series, M2, M135i, M235i, and X series SUVs such as X1, X3, X4, X5, and X6. The part number 797.820 ensures precise fitment for these vehicles, supporting proper engine sealing and performance.

Common Issues Addressed by This Cylinder Head Gasket

• Prevents coolant and oil leaks between the cylinder head and engine block
• Maintains engine compression to avoid power loss
• Compensates for cylinder head resurfacing with +0.3 mm repair stage
• Reduces risk of engine overheating caused by gasket failure
• Ensures long-term durability under high engine temperatures and pressures

Installation Notes and Tips

• Ensure the cylinder head and engine block surfaces are clean and free of debris before installation
• Verify the repair stage thickness matches the engine’s resurfacing requirements
• Use proper torque specifications and tightening sequence as per BMW service manual
• Inspect the gasket for any damage prior to installation
• Replace any related components such as head bolts if recommended

Quality Assurance and Warranty

Elring manufactures the 797.820 cylinder head gasket to meet OEM standards for fit, form, and function. The multilayer steel design is tested for durability and sealing performance under demanding engine conditions. While specific warranty terms may vary, Elring products typically come with a limited warranty against manufacturing defects, providing confidence in product reliability.