AUDI A6 ALLROAD 1999 C5 / 2.G Pneumatic Suspension System

AUDI A6 ALLROAD 1999 C5 / 2.G Pneumatic Suspension System https://www.carmanualsonline.info/img/6/840/w960_840-0.png AUDI A6 ALLROAD 1999 C5 / 2.G Pneumatic Suspension System

Page 11 of 44

AUDI A6 ALLROAD 1999 C5 / 2.G Pneumatic Suspension System  
11 
Motorway mode 
If the vehicle travels for longer than 
30 seconds at over 120 km/h (vehicle is 
already at normal level), it will automatically 
be lowered to low level.
This reduces air resista

Page 12 of 44

AUDI A6 ALLROAD 1999 C5 / 2.G Pneumatic Suspension System  
12  
Control strategies 
The vehicle rises automatically to high level 1 
at the following speeds and time thresholds:
If the system has lowered the vehicle to low 
level (motorway mode), it will au

Page 13 of 44

AUDI A6 ALLROAD 1999 C5 / 2.G Pneumatic Suspension System  
13 
If, for example, the vehicle is at high level 2 
with active ESP influences and the driver 
accelerates sharply on a very winding route, 
speeds of > 35 km can be achieved in high 
level 2. In

Page 14 of 44

AUDI A6 ALLROAD 1999 C5 / 2.G Pneumatic Suspension System  
14 
The air springs 
The front air spring is a new design.
As on the rear axle, the air springs are combined 
coaxially with the dampers as a suspension strut. 
The rear air springs are identical in

Page 15 of 44

AUDI A6 ALLROAD 1999 C5 / 2.G Pneumatic Suspension System  
15 
Rear suspension strut 
The bayonet connection must be absolutely 
clean and is greased with a special lubricant 
before installation (see Workshop Manual).
For installation, the air spring is pu

Page 16 of 44

AUDI A6 ALLROAD 1999 C5 / 2.G Pneumatic Suspension System  
16 
System components 
243_006
243_007 
WrongCorrect 
Air springs must not be moved when 
pressureless because the air bellows 
cannot unroll on the piston and would 
be damaged.
In a vehicle with d

Page 17 of 44

AUDI A6 ALLROAD 1999 C5 / 2.G Pneumatic Suspension System  
17 
Air supply 
The compressor 
The construction and function of the 
compressor corresponds largely to the unit 
described in the self-levelling suspension of 
the A6. The following is a descriptio

Page 18 of 44

AUDI A6 ALLROAD 1999 C5 / 2.G Pneumatic Suspension System  
18 
System components 
A special mounting consisting of spiral 
springs and rubber damping elements 
prevents the transfer of vibrations to the 
bodywork.
You can find a description of the design a

Page 19 of 44

AUDI A6 ALLROAD 1999 C5 / 2.G Pneumatic Suspension System 19
Pressure accumulator
The pressure accumulator allows the vehicle 
level to be raised more rapidly with minimal 
noise as the pressure accumulator is only 
filled while the vehicle is in driving op

Page 20 of 44

AUDI A6 ALLROAD 1999 C5 / 2.G Pneumatic Suspension System 20
System components
p
Pneumatic diagram
1 Additional noise damper
2 Non-return valve 1
3 Air dryer
4 Non-return valve 3
5 Non-return valve 2
6 Discharge throttle
7 Pneumatic discharge valve
8 Compres
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