Checking and topping up fluids -> Brake fluid for Your Audi Rs Q8 SUV First Generation (2020-2026)

Checking and topping up fluids  
qualified workshop without delay and have  
the fault rectified. If the warning lamp   
comes on again, stop the vehicle and switch  
off the ignition. Seek professional assis-  
tance.  
The brake fluid level is also automatically moni-  
tored.  
Driver messages  
The following driver messages may appear, de-  
pending on the equipment installed in your vehi-  
cle:  
Applies to coolant expansion tank for com-  
bustion engine: If too much coolant has  
been added to the coolant expansion tank,  
drive to a qualified workshop soon and have  
the coolant level corrected.  
Brakes: stop vehicle and check brake fluid  
level  
Stop the vehicle and check the brake fluid level.  
Seek professional assistance.  
If you use non-distilled water, the chemicals  
that it contains can cause serious corrosion  
damage to the engine – risk of engine dam-  
age!  
Having the brake fluid changed  
The brake fluid must be changed at regular inter-  
vals by a qualified workshop. The workshop can  
inform you about the service intervals for the  
brake fluid change.  
If you have used a large quantity of non-dis-  
tilled water (more than 0.5 ltr.) in an emer-  
gency, drive directly to a qualified workshop  
and have the coolant changed.  
WARNING  
Brake fluid  
If the brake fluid level is under the MIN  
mark, the effectiveness of the brakes and  
therefore the safety of the vehicle may be  
impaired – risk of accident! Do not drive on.  
Seek professional assistance.  
Heavy use of the brakes may cause a vapour  
lock if old brake fluid is left in the system.  
This would seriously impair the effective-  
ness of the brakes and the safety of the car –  
risk of accident!  
Fig. 204 Engine compartment: Cap of brake fluid reservoir  
The brake fluid in your vehicle must comply  
with the VW 501 14 standard. If this brake  
fluid is not available, it is permissible to use  
an alternative high-quality brake fluid com-  
plying with the U.S. Federal Motor Vehicle  
Standard (FMVSS) 116 DOT 4, Class 6  
(ISO 4925).  
Please refer to the safety information  
ðpage 320, General information.  
Checking the brake fluid level  
The brake fluid reservoir is located underneath a  
cover in the engine compartment on the driver's  
side.  
If used brake fluid or brake fluid not ap-  
proved for your vehicle is used, the effective-  
ness of the brakes will be seriously impaired  
and the brake system could even fail com-  
pletely. The vehicle manufacturer will accept  
no liability for faults or damage which occur  
as a result. In addition, no warranty claims  
will be accepted.  
Park the vehicle on a level surface.  
Slide the cover, which is located under the  
windscreen wiper on the driver's side, towards  
the windscreen and detach it.  
Read off the brake fluid level on the brake fluid  
reservoir ðpage 323, Fig. 200. The brake fluid  
level must be between the MIN and MAX marks  
ð
.
Replace the cover.  
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