2007 Audi S4 Clutch Systems

LuK dual-mass flywheels absorb engine vibrations before they are transmitted to the driveline where they can create gear rattle. These units feature a built-in damper designed to isolate engine torque spikes and prevent transmission damage. By design, dual-mass flywheels cannot be resurfaced. This all makes the LuK dual mass flywheel the ideal solution. With one drawback: the higher the mass reactance of the vibrating masses, the more excessive the resonance increase and associated torque peaks. With the dual mass flywheel, this would be easily perceived when starting and stopping the engine; much more easily than with a conventional clutch system. Additionally: the smaller flymass of the engine has less of a stabilizing effect on the speed fluctuation of the engine. Thanks to decades of experience in clutch building, the LuK specialists were able to find an excellent solution to this problem. An additional damping device effectively prevents resonance overload. In normal operation, however, this additional damping device has no function and the torsional vibrations of the engine are filtered out by spring dampers. Friction and spring rate – the correct ratio is important. For optimal vibration isolation and soft resonance passage when starting and stopping the engine, the ratio between friction and spring rate must be optimal. The length of the springs is a key factor: The softer a spring, the more efficiently vibrations are isolated. The extra-long springs of the latest generation of dual mass flywheels significantly reduce the spring rate compared to a first generation dual mass flywheel. In routine driving operations, excessive resonance increases are kept almost completely away from the gearbox.

Product Features:

• Top driving comfort
• Absorbs vibrations
• Prevents noise
• Enables comfortable, low-revs driving
• Saves fuel
• Relieves crankshaft and gearbox

LuK dual-mass flywheels absorb engine vibrations before they are transmitted to the driveline where they can create gear rattle. These units feature a built-in damper designed to isolate engine torque spikes and prevent transmission damage. By design, dual-mass flywheels cannot be resurfaced. This all makes the LuK dual mass flywheel the ideal solution. With one drawback: the higher the mass reactance of the vibrating masses, the more excessive the resonance increase and associated torque peaks. With the dual mass flywheel, this would be easily perceived when starting and stopping the engine; much more easily than with a conventional clutch system. Additionally: the smaller flymass of the engine has less of a stabilizing effect on the speed fluctuation of the engine. Thanks to decades of experience in clutch building, the LuK specialists were able to find an excellent solution to this problem. An additional damping device effectively prevents resonance overload. In normal operation, however, this additional damping device has no function and the torsional vibrations of the engine are filtered out by spring dampers. Friction and spring rate – the correct ratio is important. For optimal vibration isolation and soft resonance passage when starting and stopping the engine, the ratio between friction and spring rate must be optimal. The length of the springs is a key factor: The softer a spring, the more efficiently vibrations are isolated. The extra-long springs of the latest generation of dual mass flywheels significantly reduce the spring rate compared to a first generation dual mass flywheel. In routine driving operations, excessive resonance increases are kept almost completely away from the gearbox.

Product Features:

• Top driving comfort
• Absorbs vibrations
• Prevents noise
• Enables comfortable, low-revs driving
• Saves fuel
• Relieves crankshaft and gearbox

LuK: Don’t gamble – stay with the original LuK DMF! The LuK DMF prevents damages solid flywheels may cause. The LUK Dual Mass Flywheel (DMF) is individually fine-tuned for every type of car. The risks of using solid flywheels are numerous – from increased wear of engine mounts through gearbox failure to damaged crankshafts.

LuK dual-mass flywheels absorb engine vibrations before they are transmitted to the driveline where they can create gear rattle. These units feature a built-in damper designed to isolate engine torque spikes and prevent transmission damage. By design, dual-mass flywheels cannot be resurfaced. This all makes the LuK dual mass flywheel the ideal solution. With one drawback: the higher the mass reactance of the vibrating masses, the more excessive the resonance increase and associated torque peaks. With the dual mass flywheel, this would be easily perceived when starting and stopping the engine; much more easily than with a conventional clutch system. Additionally: the smaller flymass of the engine has less of a stabilizing effect on the speed fluctuation of the engine. Thanks to decades of experience in clutch building, the LuK specialists were able to find an excellent solution to this problem. An additional damping device effectively prevents resonance overload. In normal operation, however, this additional damping device has no function and the torsional vibrations of the engine are filtered out by spring dampers. Friction and spring rate – the correct ratio is important. For optimal vibration isolation and soft resonance passage when starting and stopping the engine, the ratio between friction and spring rate must be optimal. The length of the springs is a key factor: The softer a spring, the more efficiently vibrations are isolated. The extra-long springs of the latest generation of dual mass flywheels significantly reduce the spring rate compared to a first generation dual mass flywheel. In routine driving operations, excessive resonance increases are kept almost completely away from the gearbox.

Product Features:

• Top driving comfort
• Absorbs vibrations
• Prevents noise
• Enables comfortable, low-revs driving
• Saves fuel
• Relieves crankshaft and gearbox

Durable release bearings with formed rings provide high load-carrying capacity in the minimum space, increasing clutch operation comfort and ensure a long operating life. The locating bore for the press-fit connection must be made before release bearings can be installed.

Product Features:

• Few installation parts
• Higher basic load rating
• Low space requirements

Durable release bearings with formed rings provide high load-carrying capacity in the minimum space, increasing clutch operation comfort and ensure a long operating life. The locating bore for the press-fit connection must be made before release bearings can be installed.

Product Features:

• Few installation parts
• Higher basic load rating
• Low space requirements

LuK: The brand professionals trust! For over thirty years, automotive aftermarket technicians have staked their reputation – and their customers’ satisfaction – on LuK RepSet(R) clutch components. Each set contains everything you need to get the job done right: new clutch, disc, release bearing, pilot bearing (where required), spline tool and lubricant. As an original-equipment supplier, LuK develops the performance specifications for individual vehicle applications. LuK offers the highest in-house manufactured content of any supplier in the industry.

No other clutch kit supplier can offer components that exceed the OE quality that Valeo offers. Many program repackagers do not offer high percentages of OE specified clutch covers and discs. You can expect long life and smooth engagement from Valeo’s clutches because of our focus on quality. Valeo’s kits contain every component that a technician needs to change out a clutch. Each kit contains a clutch disc assembly, pressure plate cover assembly, release bearing, grease pack, and installation guide. Also included when necessary are a pilot bearing, and technical service bulletin. Valeo’s kits use packaging that is state of the art to ensure that the product arrives and remains free of damage right up to the time it is installed in a vehicle. The extra durable locking tabs ensure product security within its packaging until it is removed for final installation.

Product Features:

• OE Quality and direct fit application.
• Long life and smooth engagement.
• Clutch supplier worldwide to the Original Equipment Manufacturers.
• Valeo’s kits contain every component that a technician needs to change out a clutch.

Schaeffler is an OE clutch supplier to nearly all vehicle manufacturers around the world and has always offered a model-specific LuK RepSet to the Aftermarket for professional repair. For complete clutch replacement, you need a clutch disc, pressure plate and release bearings. The LuK RepSet contains these components and they are precision-tuned to function perfectly together. Professional repair can be conducted quickly and trouble-free. Each LuK RepSet includes a premium-quality, clutch pressure plate and disc assembly, a release bearing, and pilot bearing when required.

Product Features:

• Original Equipment Replacement.
• Direct fit application.
• OEM quality friction plates and steels.
• Clutch kit includes; Disc, Pressure Plate, Release Bearing, and Pilot Bearing when required.

LuK: The brand professionals trust! For over thirty years, automotive aftermarket technicians have staked their reputation – and their customers’ satisfaction – on LuK RepSet(R) clutch components. Each set contains everything you need to get the job done right: new clutch, disc, release bearing, pilot bearing (where required), spline tool and lubricant. As an original-equipment supplier, LuK develops the performance specifications for individual vehicle applications. LuK offers the highest in-house manufactured content of any supplier in the industry.

Product Features:

• Application matched for OE form, fit, and function
• Manufactured with high-quality materials, using cutting edge technology and processes
• Stock photo – Actual parts and materials may vary.

Meets Original Equipment Specifications & QualityManufactured From Premium Grade Materials For Superior-Quality Friction Surface & Excellent Heat-Absorption Capacity.

The Sachs Clutch Master Cylinder is an ideal high quality aftermarket replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:

• Premium aftermarket replacement
• Provides performance and dependability
• Manufactured to meet OE specifications

Schaeffler has played a crucial role in the development from mechanical to hydraulic clutch release systems. Over many years, Schaeffler has gained extensive expertise in the complete clutch release systems.

LuK has played a crucial role in the development from mechanical to hydraulic clutch release systems. Over many years, Schaeffler has gained extensive expertise in the complete clutch release systems.

Clutch Pivot Pin

Schaeffler has played a crucial role in the development from mechanical to hydraulic clutch release systems. Over many years, Schaeffler has gained extensive expertise in the complete clutch release systems.

LuK has played a crucial role in the development from mechanical to hydraulic clutch release systems. Over many years, Schaeffler has gained extensive expertise in the complete clutch release systems.

The Sachs Clutch Slave Cylinder is an ideal high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:

• Premium Original Equipment replacement
• Provides performance and dependability
• Manufactured to meet OE specifications

The INA pilot bearing is manufactured in accordance to strict OEM specifications for performance and durability.

Product Features:

• OE Quality and direct fit application
• Original Equipment Supplier
• Sealed for life with high performance, application-specific grease
• High axial load carrying capacity