400 ? Front Axle, Anti-Roll Bar, Dampers and Steering -> 400 ? 2.4 Damper / Ride Height Adjustment for Your Audi R8 2 Door Second Generation (2016-2024)

400 Front Axle, Anti-Roll Bar, Dampers and Steering  
400 2.4 Damper / Ride Height Adjustment  
Bump Stops and Packers  
The following packers are available:  
Thickness  
2 mm  
Form  
slotted  
full  
3 mm  
slotted  
full  
5 mm  
5 mm  
To install bump stops and packers, the push rod (part with external hex) must  
be removed from the piston rod. Procedure as follows:  
1.  
2.  
Clean the piston rod thoroughly with iso-propanol  
Clamp the piston rod using aluminium clamp blocks V03 862 342  
AB (Öhlins part number 00727-05, sold in pairs)  
3.  
Before removing the push rod, heat it with a hot air gun.  
First mount the bump stops (material: foam) on the side of the damper body. A  
full packer should always be mounted between the bump stops and the slotted  
packers (material: POM, polyoxymethylene).  
To refit the push rod, the threads on the piston rod must be cleaned, apply  
Loctite 270 and tighten the push rod to 60 Nm torque.  
Damper lengths and static ride height adjustment  
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400 Front Axle, Anti-Roll Bar, Dampers and Steering  
The following images show the fully extended dampers. The lengths can be set  
using the push rods.  
Front  
Rear  
Listed in the following table are the maximum and minimum adjusted damper  
lengths as well as the default setting for the ride heights at design level.  
Front  
Rear  
Extended length minimum  
adjustable length  
452 mm  
515 mm  
Extended length default  
length at design level  
465 mm (for 55 mm  
ride height)  
530 mm (for 75 mm  
ride height)  
Extended length maximum  
adjustable length  
478 mm  
557 mm  
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400 Front Axle, Anti-Roll Bar, Dampers and Steering  
Attention  
-
It must always be guaranteed that the ride-height is within the permitted  
range when measured at the FIA measurement points!  
-
The maximum adjustable extended damper length must not be exceeded!  
A groove on the push rod thread marks the maximum permitted position  
(see Image 14). The groove must remain within the lower damper eye!  
Image 14: Push Rod Thread With Groove  
Marking  
Image 15: Lower Damper Eye in Maximum  
Permitted Position  
The maximum droop travel can be adjusted using the spring platform on the  
damper body. The thread pitch of the spring platform and locking nut is 1.5  
mm.  
Front axle spring platform  
Rear axle spring platform  
On damper  
On damper On wheel  
On damper  
On damper On wheel  
1.00 turn  
1.500 mm 1.80 mm  
1.00 turn  
1.500 mm 1.86 mm  
0.56 turns  
0.835 mm 1.00 mm  
0.54 turns  
0.808 mm 1.00 mm  
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400 Front Axle, Anti-Roll Bar, Dampers and Steering  
The ride height can be set on the push rod. The thread pitch on the push rod is 1  
mm.  
Front axle pushrod  
Rear axle pushrod  
On damper  
On damper On wheel  
On damper  
On damper On wheel  
1.00 turn  
1.000 mm 1.20 mm  
1.00 turn  
1.000 mm 1.24 mm  
0.84 turns  
0.835 mm 1.00 mm  
0.81 turns  
0.808 mm 1.00 mm  
The static corner weights can be adjusted on the spring platform on the damper  
body or on the push rod.  
Damper Adjustment  
The compression setting is adjusted on the gold wheel  
marked with ‘COMP’. The rebound setting is adjusted on  
the black wheel marked with ‘REB’. Rotate clockwise to  
increase the damping forces.  
Rotate anticlockwise to reduce the damping forces.  
To reset the adjustment, the wheel must be rotated  
clockwise to the mechanical stop (position 0). Afterwards,  
rotate anticlockwise click by click to open the valve again.  
Count the clicks until the desired value is achieved.  
Attention  
Do not use excessive force to rotate the adjuster wheels. Sensitive sealing  
surfaces could be damaged!  
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Damper Characteristic Curves  
3000  
2500  
2000  
1500  
1000  
500  
R1  
R5  
R9  
R13  
R17  
R21  
B1  
0
0
50  
100  
150  
200  
250  
300  
-500  
B5  
-1000  
-1500  
-2000  
-2500  
-3000  
B9  
B13  
B17  
B21  
Speed in mm/s  
Image 16: Characteristic Curve Front Damper 4SA 412 019 B  
3000  
2500  
2000  
1500  
1000  
500  
R1  
R5  
R9  
R13  
R17  
R19  
R23  
B1  
0
0
50  
100  
150  
200  
250  
300  
-500  
B5  
B9  
-1000  
-1500  
-2000  
-2500  
-3000  
B13  
B17  
B19  
B23  
Speed in mm/s  
Image 17: Characteristic Curve Rear Damper 4SA 512 019 C  
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