Premium Material Engine Vacuum Pump Rubber Ring 11668626471 11667509080 For BMW E90 F30 E60 F10 F25 E70 E82 F01 E89

Product Overview

The Engine Vacuum Pump Rubber Ring (Part Numbers: 11668626471, 11667509080) is a high-precision sealing component designed for BMW vehicles. It ensures an airtight seal in the vacuum pump system, preventing oil leaks and maintaining optimal engine performance.

Technical Principle

The rubber ring functions as a dynamic seal between the vacuum pump and the engine block. It withstands high temperatures, oil exposure, and mechanical stress while maintaining elasticity to prevent vacuum loss. A compromised seal can lead to oil leakage, reduced braking efficiency (in brake booster systems), and potential engine performance issues.

Vehicle Compatibility Table

Note:

1. SAV = Sports Activity Vehicle (BMW’s term for SUV)
2. For exact fitment, verify with your VIN

Features

1. Premium Material – Made from fluorinated rubber (FKM/Viton) or hydrogenated nitrile rubber (HNBR), ensuring excellent resistance to heat, oil, and wear.
2. Precision Fit – Engineered to BMW OEM specifications for a perfect seal.
3. High-Temperature Resistance – Withstands temperatures from -30°C to +200°C (-22°F to +392°F).
4. Oil & Chemical Resistant – Resists degradation from engine oils, fuels, and other automotive fluids.
5. Long Service Life – Reduces the need for frequent replacements.

Applications

This rubber ring is used in BMW’s vacuum pump system, which is critical for:

1. Brake Booster Assistance (ensures proper vacuum for power brakes)
2. Engine Crankcase Ventilation (maintains optimal pressure)
3. Turbocharger & Emission Control Systems

Compatible Models:

1. BMW 3 Series (E90, F30), 5 Series (E60, F10), X3 (F25), X5 (E70), and more
2. Engines: N52, N54, N55, B48, B58, etc.

Production Process

1. Material Selection – High-grade FKM or HNBR rubber for durability.

2. Molding – Precision injection or compression molding for consistent dimensions.

3. Curing – Vulcanization under heat to enhance elasticity and strength.

4. Quality Inspection – Dimensional checks, pressure testing, and material validation.

5. Packaging – Anti-corrosion treatment and secure packaging to prevent deformation.

Installation Method

1. Disconnect the Battery – Ensure safety before starting.

2. Remove the Vacuum Pump – Unbolt the pump from the engine.

3. Extract the Old Seal – Carefully pry out the worn rubber ring.

4. Clean the Groove – Remove oil residue and debris.

5. Install the New Ring – Lubricate lightly with engine oil and press into place.

6. Reassemble & Test – Reinstall the pump, reconnect the battery, and check for leaks.

FAQ (Frequently Asked Questions)

Q1: How do I know if my vacuum pump rubber ring is failing?

• Symptoms include oil leaks near the vacuum pump, a spongy brake pedal, or a check engine light (due to vacuum loss).

Q2: Can I reuse the old rubber ring?

• No, rubber seals degrade over time—always replace with a new one.

Q3: Does this fit both gasoline and diesel BMW engines?

• Yes, but verify compatibility with your specific model.

Q4: What’s the lifespan of this rubber ring?

• Typically 60,000–100,000 miles, but depends on driving conditions.