2016-2025 Audi A4 4 Door Starting and driving -> Driving dynamics User Manual
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Starting and driving -> Driving dynamics for Your Audi A4 4 Door Fifth Generation (2016-2025)

Sitting correctly and safely  
Deactivating or activating the belt retractor lock  
Safety belt monitoring system  
ðpage 82.  
- If the indicator light turns on or flashes, a  
front safety belt is not fastened or it has been un-  
fastened while driving. There may be additional  
audio warning signals.  
Safety belt retractor  
The safety belts are equipped with an automatic  
belt retractor. This automatic retractor allows the  
safety belt to be pulled all the way out when the  
belt is pulled slowly. However, the automatic re-  
tractor locks during sudden braking maneuvers.  
It also locks the belts when accelerating, driving  
uphill, and driving around curves.  
Adjusting the height of the safety belt  
Belt force limiter  
Safety belts with belt force limiters reduce the  
force placed on the body by the safety belts dur-  
ing a collision.  
Safety belt pretensioners  
Fig. 70 Belt height adjustment for the front seats - safety  
belt relay  
In certain driving situations, safety belts may be  
tightened with reversible belt tensioners when  
you start driving. If the safety belt is too loose, it  
will be tightened so that the belt will rest closer  
to the body.  
To move the belt higher, slide the safety belt re-  
lay 2 upward.  
To move the belt lower, press the release but-  
ton 1 and slide the safety belt relay 2 down-  
ward.  
To check if the safety belt relay is securely  
locked in place, pull firmly on the belt.  
In some collisions, pyrotechnic belt tensioners  
may secure the safety belts so that they cannot  
loosen. This reduces forward movement of the  
persons in the vehicle.  
Tips  
WARNING  
You can also adjust the height of the front  
seats to change the position of the safety  
belts.  
The pyrotechnic system can only provide pro-  
tection during one collision. If the pyrotechnic  
belt tensioners deploy, the pretensioning sys-  
tem must be replaced by an authorized Audi  
dealer or authorized Audi Service Facility.  
Additional safety belt functions  
Belt retractor lock  
Tips  
The safety belts on the rear seats and on the  
front passenger seat are equipped with a belt re-  
tractor lock.  
Smoke may be released when pyrotechnic belt  
tensioners deploy. This is not a sign of a vehi-  
cle fire.  
If you secure a child safety seat with a safety  
Memory function  
belt, the belt retractor lock on the safety belt  
may need to be activated. Follow the instruc-  
tions from the child safety seat manufacturer.  
General information  
Applies to: vehicles with memory function  
When a person in the vehicle has fastened a  
With the memory function, you can save and call  
up seat profiles using the memory buttons in the  
door trim panel.  
safety belt, the belt retractor lock should not  
be activated. If the belt retractor lock has been  
activated unexpectedly, deactivate it.  
73  

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