Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2009A6 BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 34 (SUSPENSION, WHEELS, STEERING)
2009 Audi A6 Base
Section 34 (Suspension, Wheels, Steering)
2009 Audi A6 BaseSECTION Section 34 (Suspension, Wheels, Steering)
WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2009 Audi S4, 2009 Audi A4, 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
- 00 - Technical data
- 40 - Front suspension
- Front suspension, servicing
- Suspension strut
- Wheel bearing housing
- Light weight wheel hub
- Mounting bracket and upper links
- Subframe
- Tunnel crossmember
- Vehicles with automatic headlight vertical aim control, vehicle level sensor
- Lower control link
- Guide link
- Stabilizer bar
- Cross brace
- Front diagonal braces, removing and installing
- Front drive axle, servicing
- Drive axle with triple roller joint AAR 2000, servicing
- Peened triple roller joint AAR 2600 i or 3300 i, disassembling and assembling
- Drive axle with constant velocity inner joint (diameter 100 mm), servicing
- Drive axle with constant velocity inner joint (diameter 108 mm), servicing
- 42 - Rear suspension
- Rear axle component allocation
- General information
- Wheel bearing, lifting to curb weight position
- Component groups
- Part I, Subframe - front wheel drive
- Part II, Subframe - all wheel drive
- Part III, Trapezoidal control arm, transverse link, tie rod
- Part IV, Stub axle carrier - front wheel drive
- Part V, wheel bearing housing (steel) - all wheel drive
- Part VI, Stabilizer bar
- Part VII, Wheel bearing housing (aluminum) - all wheel drive
- Vehicle level sensor in vehicles with automatic headlight vertical aim control
- Rear coil spring
- Strut
- Stub axle carrier/wheel bearing housing and wheel bearing unit
- Stub axle carrier/wheel bearing housing (steel), removing and installing
- Stub axle carrier - front wheel drive, servicing
- Wheel bearing housing (steel) - all wheel drive, servicing
- Wheel bearing (with wheel bearing housing (steel) installed - all wheel drive), removing and installing
- Bolted wheel bearing unit, removing and installing
- Wheel bearing housing (aluminum) - all wheel drive, removing and installing
- Light weight wheel hub
- Transverse link
- Trapezoidal control arm
- Rear subframe
- Tie rod
- Stabilizer bar
- Diagonal braces
- Rear drive axle, servicing
- Rear axle component allocation
- 43 - Self-leveling suspension
- 44 - Wheels, tires, vehicle alignment
- Wheels, tires
- Tire Pressure Monitoring System
- General information
- Tire Pressure Monitoring System, component overview
- Wheel electronics, assembly overview
- Changing tires
- Metal valve body, removing and installing
- Tire Pressure Monitoring Control Module J502 , removing and installing
- Rear Tire Pressure Monitoring System antenna, removing and installing
- Tire Pressure Monitoring System, system usage
- Wheel alignment
- General information
- Test Requirements:
- Specifications for wheel alignment
- Measurement preparations
- Application of adapters to suspension for measurement
- Mechanical steering rack center position, checking
- Front axle camber, checking and adjusting if necessary
- Rear axle camber, adjusting
- Toe at rear axle, adjusting
- Front axle toe-in curve, adjusting
- Vehicle, bringing into initial position for measurement
- Vehicle, lifting with suspension 1BA, 1BR, 1BE, 1BV, 1BD, 2MC, 2ME
- Toe constant "S" , adjusting
- Front axle toe, adjusting
- 48 - Steering
- Steering wheel with airbag
- Steering column
- Power-assist steering gear
- Power steering gear, adjusting
- Servotronic steering gear
- Tie rod ball joint and tie rod
- Checking oil level, bleeding steering system, checking for leaks
- Power steering pump, reservoir and hydraulic lines, assembly overview
- Power steering pump delivery pressure, checking
- Power steering pump, removing and installing
- Intake hose
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.