300 ? Gearbox, Drive Shafts and Ancillary Components for Your Audi R8 2 Door Second Generation (2016-2024)

300 Gearbox, Drive Shafts and Ancillary Components  
300 Gearbox, Drive Shafts and Ancillary  
Components  
a) Technical data  
1.  
2.  
3.  
Type  
6-speed sequential  
65 kg  
Weight  
Transmission ratio  
FIA homologated  
Image 10: Gearbox FIA Homolagated Gear Ratios  
b) Gearbox Oil  
Castrol SAF XJ 75W-140 or Castrol Syntrax Longlife 75W-140 (previously known  
as SAF XJ)  
Part number V31 748 005 01L --> 1 litre bundle  
It is recommended that only gearbox oil approved by Audi Sport customer racing  
is used.  
Differences in the quality of gearbox oil influence significantly the wear of the  
idler and fixed gears as well as the crown wheel and pinion.  
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c) Oil Quantities  
3.2 litres when oil cooler and oil pipes empty (initial fill when new or after  
rebuild).  
2.9 litres when oil cooler and oil pipes full (service and maintenance work).  
Changing the filter and oil is mandatory after 500 km with a new car and with a  
new gearbox. Otherwise, oil and filter change during service or after a maximum  
of 6,000 km.  
d) Oil Level Measurement  
1.  
2.  
Position the car on a level, flat surface  
To measure the oil level, remove the oil dipstick, wipe dry with a  
clean cloth. Afterwards, screw the oil dipstick by hand to the final  
position, then remove and check the oil level.  
3.  
After the warming up procedure (tgear 60°C), the oil level should  
be immediately below the ‘MAX’ mark on the oil dipstick.  
Attention  
If the oil level is too high and/or the car is driven when the gearbox oil  
temperature is too low, it is possible that a significant amount of oil will be  
discharged from the gearbox breather!  
e) Inspection  
There are four inspection openings available (A/B/C/D).  
The condition and wear of the dogs on the gears and dog rings, and the teeth on  
the fixed gears, idler gears, crown wheel and pinion can be checked visibly.  
The wear of the above-mentioned components should be checked regularly.  
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Image 11: Gearbox Clutch Bleed Nipple, Oil Level Check, Inspection Openings  
f) Service and Maintenance  
1.  
Please refer to PDM 4SA 300 001 for 902 Service and  
Maintenance Contacts  
2.  
3.  
Gearboxes should be returned for a rebuild after 6,000 km  
Alternatively, a training course at HÖR-Technologie can be  
attended, which enables customers to carry out rebuilds and  
maintenance work (special tools required)  
4.  
Rebuilds and training courses are implemented and coordinated in  
conjunction with Audi Sport customer racing. Please contact  
Kurt Gräfenstein  
+49 (0) 151 / 421 340 05  
g) Differential  
1.  
2.  
Preload fully adjustable between 50 and 300 Nm (hot)  
Adjustment is made via the bolt on the differential housing cover –  
remove screw plug in casing turn the output flange until the  
adjustment bolt is visible. Depress preload bolt with special tool  
(V03 862 291 AC) and increase preload in clockwise direction. 1 Nm  
on the ratchet equals approx. 10 Nm differential preload.  
Caution: depending on the oil level and position of car, oil can  
escape when the screw plug is removed.  
3.  
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Image 12: Screw Plug, Adjustable Differential Preload  
Image 13: Adjustable Preload  
Attention  
The preload is approx. 100 150 Nm at delivery and with new gearbox. It  
should be noted that the preload changes significantly before a certain distance  
is covered with new clutch discs. Preload must always be adjusted when the  
gearbox is warm.  
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