What are LEMFORDER Front Upper & Lower Control Arms for Audi A6 C7 4G and what is their function?
Audi A6 C7 4G Front Upper & Lower Control Arms are important components of the front multi-link suspension system that help guide the front wheels through controlled suspension movement while supporting stable steering, correct wheel positioning and predictable road handling. This complete LEMFORDER set of 8 includes 38965 01, 38964 01, 37486 01, 37487 01, 35685 01, 35686 01, 35687 01 and 35688 01 with OEM references 4G0407693J / 4G0407694J / 8K0407151F / 8K0407152F / 8K0407505M / 8K0407506M / 8K0407509M / 8K0407510M. The Audi A6 C7 4G uses several individual suspension links at the front axle rather than depending on one simple control arm on each side, so different upper and lower arms work together to control wheel movement. Catalogue data identifies 35685 01 as the left upper front arm and 35686 01 as the corresponding right upper front arm, while 35687 01 and 35688 01 cover the left and right upper rear positions. The 37486 01 and 37487 01 references correspond to left and right lower front positions, while the remaining lower suspension links complete the multi-link arrangement. These position-specific components are therefore not interchangeable and must be installed in their intended locations. During everyday driving, the suspension constantly moves as the tyres follow the road surface. Potholes, speed breakers, broken roads and uneven surfaces create stronger movement and impact forces through the control arms, bushes and joints. During braking, vehicle weight transfers towards the front axle, while cornering creates lateral forces through the tyres and suspension. Correctly functioning upper and lower arms help control these movements and maintain predictable wheel guidance. As bushes, joints or mounting areas deteriorate, excessive movement can develop and may contribute to knocking, clunking, steering vibration, vague steering, reduced stability or irregular tyre wear. Other front suspension components should also be inspected because similar symptoms can originate from steering tie rod ends, shock absorbers, wheel bearings or other bushes and joints. Sway bar links, Sway links, Anti roll link rods and Stabiliser sway links should also be checked when rattling or knocking occurs. Before ordering, verify all eight LEMFORDER references and OEM numbers against the VIN and original components. Professional installation followed by wheel alignment is recommended.
Are LEMFORDER 38965 01, 38964 01, 37486 01, 37487 01, 35685 01, 35686 01, 35687 01 and 35688 01 suitable for Audi A6 C7 4G?
LEMFORDER 38965 01, 38964 01, 37486 01, 37487 01, 35685 01, 35686 01, 35687 01 and 35688 01 are supplied together in this Audi A6 C7 4G Front Upper & Lower Control Arms set of 8, and the current product catalogue lists this combination for Audi A6 C7 (4G) with a 2011–2018 compatibility range. The supplied OEM references are 4G0407693J / 4G0407694J / 8K0407151F / 8K0407152F / 8K0407505M / 8K0407506M / 8K0407509M / 8K0407510M. Exact compatibility should still be confirmed using the individual vehicle VIN, existing suspension components and required OE references before ordering because vehicle configuration and suspension specifications can vary. This is particularly important with the Audi A6 C7 4G multi-link suspension because the complete kit contains several position-specific components rather than eight identical arms. Catalogue information identifies 37486 01 as front axle left lower front and 37487 01 as front axle right lower front. It also identifies 35685 01 as front axle left upper front and 35686 01 as front axle right upper front, while 35687 01 and 35688 01 correspond to the upper rear pair. Correct identification of every arm is therefore essential before installation. When correctly matched, these suspension links work together to guide the front wheel assemblies and help maintain controlled suspension geometry. If bushes or joints become worn, the driver may experience knocking, vibration, vague steering response, reduced directional stability or abnormal tyre wear. However, these symptoms should not automatically be attributed to the control arms because steering tie rod ends, wheel bearings, shock absorbers and other suspension components can produce similar problems. Sway bar links, Sway links, Anti roll link rods and Stabiliser sway links should also be inspected if knocking occurs over uneven roads. Tyres should be checked for abnormal wear and correct pressure, while wheel balancing should be considered if vibration is speed-related. If professional inspection confirms that the corresponding eight upper and lower suspension arms require replacement and the references match the vehicle, this LEMFORDER package provides the required components together. VIN and OEM verification should always be completed before purchase.
Why does this Audi A6 C7 4G Front Upper & Lower Control Arms kit contain a set of 8?
This Audi A6 C7 4G Front Upper & Lower Control Arms package contains a set of 8 because the front suspension uses multiple individual links positioned around the left and right front wheel assemblies, with separate upper and lower arms helping guide wheel movement through the suspension’s operating range. This LEMFORDER package combines 38965 01, 38964 01, 37486 01, 37487 01, 35685 01, 35686 01, 35687 01 and 35688 01 into one complete set, together with OEM references 4G0407693J / 4G0407694J / 8K0407151F / 8K0407152F / 8K0407505M / 8K0407506M / 8K0407509M / 8K0407510M. Available catalogue data confirms that these references cover different left/right and upper/lower positions; for example, 37486 01 is left lower front, 37487 01 is right lower front, 35685 01 is left upper front and 35686 01 is right upper front. This arrangement allows several suspension links to work together rather than placing all front-wheel control through a single arm. When the vehicle travels over normal roads, each wheel needs to move vertically while remaining controlled in relation to the chassis. Braking, acceleration, cornering, potholes and uneven roads introduce forces from different directions, so the multi-link layout uses multiple arms and bushes to manage those movements. The advantage of an eight-piece set becomes particularly relevant when professional inspection identifies significant deterioration across several corresponding links. Because the arms operate through similar mileage and road conditions, multiple bushes or joints may eventually require attention, although they do not necessarily wear at exactly the same rate. Therefore, the existence of a set of 8 does not mean all eight components must automatically be replaced whenever one arm develops a fault. Each component should be inspected individually. If the complete corresponding group is worn, replacing the diagnosed arms during one repair can provide a more comprehensive suspension refresh and may reduce the need for repeated dismantling. Other components should still be inspected, including steering tie rod ends, shock absorbers and wheel bearings. Sway bar links, Sway links, Anti roll link rods and Stabiliser sway links should also be checked. After installation, professional wheel alignment is recommended to check suspension geometry and tyre alignment.
What are the common symptoms of worn upper and lower control arms on an Audi A6 C7 4G?
Common symptoms of worn Audi A6 C7 4G Front Upper & Lower Control Arms may include knocking or clunking from the front suspension, rattling over rough roads, steering vibration, vague or loose steering response, reduced straight-line stability, unusual movement during braking and irregular tyre wear, although these symptoms should always be properly diagnosed before replacing parts because several suspension and steering components can produce similar problems. This LEMFORDER set contains 38965 01, 38964 01, 37486 01, 37487 01, 35685 01, 35686 01, 35687 01 and 35688 01 for the corresponding front suspension positions when the supplied references match the vehicle. The Audi A6 C7 4G front multi-link suspension contains several bushes and joints that are repeatedly subjected to compression, twisting, braking forces, cornering loads and road impacts. Over time, rubber bushes may deteriorate, crack, deform or develop excessive movement, while joints and mounting areas can also wear. Early deterioration may produce only an occasional knocking sound when crossing a pothole or speed breaker. As wear becomes more significant, the driver may notice increased suspension noise, reduced steering precision or a less controlled feeling from the front axle. Excessive suspension movement may also influence wheel positioning and contribute to abnormal wear across the tyre tread. The vehicle may feel less settled under braking because braking forces place additional load through the front suspension. However, these symptoms are not exclusive to control-arm failure. Steering tie rod ends can produce looseness and steering play. Wheel bearings may produce noise or vibration. Shock absorbers with reduced damping performance can make the vehicle feel unstable over uneven roads. Sway bar links, Sway links, Anti roll link rods and Stabiliser sway links can produce knocking or rattling, particularly over smaller road irregularities. Tyre defects, incorrect pressure and wheel imbalance can also cause vibration. A complete workshop inspection should therefore be performed before deciding whether individual arms or the complete eight-piece set requires replacement. If several corresponding suspension links are confirmed as worn, verify all LEMFORDER references and OEM numbers against the VIN before ordering. Correct installation and wheel alignment should follow replacement.
What are the benefits of replacing Audi A6 C7 4G Front Upper & Lower Control Arms as a complete set of 8?
Replacing Audi A6 C7 4G Front Upper & Lower Control Arms as a complete set of 8 can provide a comprehensive approach when professional inspection confirms significant deterioration across the corresponding front multi-link suspension components. This LEMFORDER package includes 38965 01, 38964 01, 37486 01, 37487 01, 35685 01, 35686 01, 35687 01 and 35688 01, together with OEM references 4G0407693J / 4G0407694J / 8K0407151F / 8K0407152F / 8K0407505M / 8K0407506M / 8K0407509M / 8K0407510M. The complete set is currently listed for Audi A6 C7 (4G) 2011–2018. Because the front suspension uses several individual links, wear may eventually develop across multiple bushes and joints. If several corresponding arms are already significantly worn, replacing the complete diagnosed group during one repair can bring those suspension components to a more consistent mechanical condition. This can reduce the possibility of replacing one heavily worn component and then needing another major suspension repair shortly afterwards because other already-deteriorated links were left in place. New correctly matched suspension arms can remove excessive movement associated with the worn bushes or joints they replace and help restore controlled wheel guidance. When suspension wear is responsible for knocking, vague steering or abnormal tyre wear, replacing the diagnosed components can address the mechanical source of those symptoms. Purchasing the eight arms as one package can also simplify parts sourcing compared with ordering several position-specific links separately. However, replacing the entire set should be based on actual component condition rather than assuming that every arm must be replaced whenever one component fails. The workshop should inspect the complete front axle and determine which parts require replacement. Steering tie rod ends, wheel bearings and shock absorbers should also be checked. Sway bar links, Sway links, Anti roll link rods and Stabiliser sway links should be inspected for play when suspension noise is present. Tyres should be checked for abnormal wear that may have developed before the repair. When all corresponding arms are confirmed as worn and the supplied references match the VIN, fitting the complete set followed by professional wheel alignment can provide a comprehensive front suspension repair.
Why choose this LEMFORDER set of 8 for Audi A6 C7 4G front suspension replacement?
Why are Audi A6 C7 4G Front Upper & Lower Control Arms important for steering, suspension and road stability?
Audi A6 C7 4G Front Upper & Lower Control Arms are important parts of the front multi-link suspension because they help guide the front wheel assemblies, maintain controlled suspension movement and support predictable steering, braking stability and road handling. This complete LEMFORDER set of 8 includes 38965 01, 38964 01, 37486 01, 37487 01, 35685 01, 35686 01, 35687 01 and 35688 01 with OEM references 4G0407693J / 4G0407694J / 8K0407151F / 8K0407152F / 8K0407505M / 8K0407506M / 8K0407509M / 8K0407510M. The Audi A6 C7 4G uses multiple suspension links around each front wheel rather than relying on one simple control arm. Each upper and lower arm therefore has a specific function and installation position within the suspension system. During everyday driving, these components continuously guide the wheels as the suspension moves over smooth roads, potholes, speed breakers and uneven surfaces. When the driver applies the brakes, additional vehicle weight transfers towards the front axle and creates greater loading through the suspension links, bushes and joints. During cornering, lateral forces act through the tyres and wheel assemblies, while changes in road level continuously move the suspension through its operating range. Correctly functioning control arms help manage these forces while limiting unwanted wheel movement. When a control-arm bush, joint or mounting area becomes significantly worn, the wheel may gain unwanted movement relative to the chassis. Depending on the affected component, the driver may notice knocking or clunking, vague steering response, vibration through the steering wheel, reduced straight-line stability or irregular tyre wear. The vehicle can also feel less controlled during braking or when changing direction. Because several components work together in the Audi front suspension, these symptoms should be properly diagnosed rather than automatically attributed to one arm. Steering tie rod ends, ball joints, shock absorbers and wheel bearings should also be inspected. Sway bar links, Sway links, Anti roll link rods and Stabiliser sway links should be checked when rattling or knocking is heard over uneven roads. Tyres should be inspected for pressure, damage and unusual tread wear. When professional inspection confirms deterioration across multiple corresponding suspension links, replacing the worn components can remove excessive movement associated with those parts. All eight LEMFORDER references and supplied OEM numbers should be verified against the vehicle VIN before ordering, and professional wheel alignment is recommended after installation.
Is wheel alignment required after replacing LEMFORDER Front Upper & Lower Control Arms on Audi A6 C7 4G?
A professional wheel alignment check is strongly recommended after replacing Audi A6 C7 4G Front Upper & Lower Control Arms because the upper and lower suspension links participate in controlling the position and movement of the front wheel assemblies, and replacing several components within the multi-link suspension can affect or reveal changes in wheel geometry that should be measured after installation. This complete LEMFORDER suspension set contains 38965 01, 38964 01, 37486 01, 37487 01, 35685 01, 35686 01, 35687 01 and 35688 01, with OEM references 4G0407693J / 4G0407694J / 8K0407151F / 8K0407152F / 8K0407505M / 8K0407506M / 8K0407509M / 8K0407510M. Old suspension bushes and joints can develop excessive movement after prolonged use. When these components are worn, the wheel assemblies may no longer remain as controlled as intended under braking, cornering and changing road loads. Replacing the diagnosed worn arms removes the unwanted movement associated with those components, but fitting new parts does not automatically confirm that the final wheel alignment is correct. A professional alignment machine allows the technician to measure the wheel geometry and determine whether adjustments are required where the vehicle design permits. Correct wheel alignment helps maintain predictable steering, straight-line stability and balanced tyre wear. Incorrect alignment may contribute to the vehicle pulling towards one side, an off-centre steering wheel, reduced directional stability or accelerated wear on the inner or outer sections of the tyres. Alignment becomes particularly important after a large suspension repair involving several upper and lower links. Before completing the alignment, the technician should inspect the remaining steering and suspension components because excessive play elsewhere can affect accurate measurement. Steering tie rod ends should be checked carefully because they influence wheel direction and toe. Shock absorbers should be inspected for leakage, physical damage and damping condition. Wheel bearings should be examined when unusual noise or wheel movement is present. Sway bar links, Sway links, Anti roll link rods and Stabiliser sway links should also be inspected if suspension noise exists. Tyres should be inflated correctly before alignment, and existing uneven tread wear should be noted because new suspension parts cannot reverse tyre wear that has already occurred. Wheel balancing should be considered separately if vibration mainly appears at particular speeds. Professional installation followed by a complete wheel alignment check is therefore recommended after replacing the required suspension arms.
What problems can occur if worn Audi A6 C7 4G Front Upper & Lower Control Arms are not replaced?
Worn Audi A6 C7 4G Front Upper & Lower Control Arms can contribute to progressively increasing suspension noise, excessive wheel movement, steering vibration, vague steering response, reduced road stability and irregular tyre wear when deteriorated bushes, joints or mounting areas remain in service. This LEMFORDER set contains 38965 01, 38964 01, 37486 01, 37487 01, 35685 01, 35686 01, 35687 01 and 35688 01, together with OEM references 4G0407693J / 4G0407694J / 8K0407151F / 8K0407152F / 8K0407505M / 8K0407506M / 8K0407509M / 8K0407510M. Because the Audi A6 C7 4G uses a multi-link front suspension, deterioration can develop in different upper and lower links and the symptoms may vary according to the position and severity of wear. Suspension bushes are repeatedly compressed, twisted and loaded whenever the wheels travel over changing road surfaces. Potholes, broken roads and speed breakers can create stronger impacts through these components, while braking and cornering generate additional forces through the front suspension. Early deterioration may cause only occasional knocking or clunking. As the wear becomes more significant, unwanted movement may increase and the vehicle can begin to feel less precise through the steering. If worn components allow wheel geometry to change excessively while driving, irregular tyre wear can develop. The driver may notice increased wear on particular sections of the tyre tread, although incorrect alignment and other faults can cause similar patterns. Ignoring significant suspension wear can therefore allow the symptoms associated with those worn parts to become more noticeable and may contribute to additional tyre expense. However, a complete diagnosis remains important because the control arms are only part of the front suspension. Steering tie rod ends can cause loose steering or unwanted wheel movement. Worn shock absorbers can reduce suspension control. Wheel bearings can produce noise or vibration. Sway bar links, Sway links, Anti roll link rods and Stabiliser sway links can create knocking or rattling over rough roads. Tyre defects, incorrect pressure and wheel imbalance can also produce vibration. If professional inspection confirms that multiple upper and lower suspension arms are significantly worn, replacing the diagnosed components should not be unnecessarily delayed. Verify all supplied LEMFORDER and OEM references against the VIN before ordering, and complete professional installation followed by wheel alignment.
Why is replacing all 8 Audi A6 C7 4G upper and lower control arms together beneficial when all eight arms are worn?
Replacing all eight Audi A6 C7 4G Front Upper & Lower Control Arms together can be beneficial when professional inspection confirms significant deterioration across the complete corresponding suspension group because the front multi-link system relies on several separate upper and lower links working together to guide the left and right wheel assemblies. This LEMFORDER package provides 38965 01, 38964 01, 37486 01, 37487 01, 35685 01, 35686 01, 35687 01 and 35688 01 together with OEM references 4G0407693J / 4G0407694J / 8K0407151F / 8K0407152F / 8K0407505M / 8K0407506M / 8K0407509M / 8K0407510M. When several bushes and joints have accumulated similar mileage and show significant deterioration, replacing the complete diagnosed group during one repair can bring those suspension components to a more consistent mechanical condition. This approach can also reduce repeated workshop labour where several other already-worn arms would otherwise require replacement soon after an initial repair. Correctly matched new suspension links can remove unwanted movement caused by deteriorated bushes, joints or mounting areas. When those worn components are responsible for knocking, vague steering, reduced stability or irregular tyre wear, replacement can address the mechanical source of the problem. Purchasing a complete set also simplifies parts sourcing because the eight corresponding suspension arms are grouped into one package rather than being purchased individually. However, the availability of an eight-piece set does not mean that every arm should automatically be replaced whenever a single component develops wear. Each suspension link should be inspected individually and replacement should be based on actual condition. If only one or two arms are worn while the others remain serviceable, a workshop may recommend a more targeted repair depending on the vehicle's overall condition. If all eight corresponding arms show significant deterioration, completing the replacement together can provide a more comprehensive front suspension refresh. Related components should also be inspected during the same repair. Steering tie rod ends, ball joints, shock absorbers and wheel bearings should be checked. Sway bar links, Sway links, Anti roll link rods and Stabiliser sway links should be examined for worn joints or play. Tyres should be checked for abnormal wear. Once the correct LEMFORDER parts are installed in their intended positions, professional wheel alignment should be completed to check suspension geometry and support predictable steering and balanced tyre wear.
Why is LEMFORDER a premium German-quality suspension choice compared with FEBI, Meyle, TRW and other established brands for Audi A6 C7 4G?
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