Audi Resource - Level Control

Reading measured value block

Measured value block 001:

Voltage term.15 in Volts

Voltage term.30 in Volts

Vehicle speed in km/h

Term. 50 on or term.50 off (starting; starter active)

Measured value block 002:

Door closed/door open/door locked (door status)

Tailgate open/tailgate closed (tailgate status)

Voltage supply right (0-10 Volts)

Voltage supply left (0-10 Volts)

Measured value block 003:

Pressed/unpressed (higher level selected)

Vacant

Pressed/unpressed (lower level selected)

Relay on/relay off (compressor run status)

Measured value block 004:

Deviation from standard level FL or default position not learned (height deviation front left from standard level in mm)

Deviation from standard level FR or default position not learned (height deviation front right from standard level in mm)

Deviation from standard level RL or default position not learned (height deviation rear left from standard level in mm)

Deviation from standard level RR or default position not learned (height deviation rear right from standard level in mm)

Measured value block 005:

Not relevant to service

Measured value block 006:

Compressor temperature in °C

Pressure sensor signal in bar

Drain valve on/off (drain solenoid valve status)

Pressure accumulator valve on/off (pressure accumulator valve status)

Measured value block 007:

Transverse lock-up FL on/off (front left air spring valve status)

Transverse lock-up FR on/off (front right air spring valve status)

Transverse lock-up RL on/off (rear left air spring valve status)

Transverse lock-up RR on/off (rear right air spring valve status)

Measured value block 008:

Not relevant to service

Measured value block 009:

Not relevant to service

Measured value block 010:

Vehicle level deviation FL in mm

Vehicle level deviation FR in mm

Vehicle level deviation RL in mm

Vehicle level deviation RR in mm

Measured value block 011:

Damper valve current FL in mA

Damper valve current FR in mA

Damper valve current RL in mA

Damper valve current RR in mA

Measured value block 012:

Signal body acceleration front left in Volts (specification 2.4-2.6 Volts)

Signal body acceleration front right in Volts (specification 2.4-2.6 Volts)

Signal body acceleration rear in Volts (specification 2.4-2.6 Volts)

Vacant

Measured value block 013:

Damper velocity front left

Damper velocity front right

Damper velocity rear left

Damper velocity rear right

Measured value block 014:

Not relevant to service

Measured value block 015:

Steering angle in degrees

Vehicle speed in km/h

Weighted braking signal in %

CDC emergency running ( 32=CDC emergency running A; 16=CDC emergency running B; 8=CDC emergency running C; 4=CDC emergency running D;

2=CDC emergency running E; 1=no emergency running

Measured value block 125:

CAN message brake control unit

CAN message engine control unit

CAN message steering angle sender

CAN message elec. ignition lock

Possible readouts: 1 or 0; if "1" OK; if "0" n.OK

If a 1 is displayed, a CAN message is sent from the relevant control unit.

If the tester shows a 0, the CAN message is interrupted.

In such cases read the fault memory of the relevant control unit.

Measured value block 126:

CAN message from Gateway

Vacant

Possible readouts: 1 or 0; if "1" OK; if "0" n.OK

If a 1 is displayed, a CAN message is sent from the relevant control unit.

If the tester shows a 0, the CAN message is interrupted.

In such cases read the fault memory of the relevant control unit.

Final control element test

Test step 1 Components involved: Short description of function

Air spring valve FL Air spring valve FL, drain valve, Open air spring valve & drain valve,

height sensor FL, pressure sensorpressure readout, height value as delta to

learned default position Lower to -20mm

below standard level

Test step 2

Air spring valve FL Air spring valve FR, drain valve, Open air spring valve & drain valve,

height sensor FR, pressure sensorpressure readout, height value as delta to

learned default position Lower to -20mm

below standard level

Test step 3

Air spring valve RL Air spring valve RL, drain valve, Open air spring valve & drain valve,

height sensor RL, pressure sensorpressure readout, height value as delta to

learned default position Lower to -20mm

below standard level

Test step 4

Air spring valve RR Air spring valve RR, drain valve, Open air spring valve & drain valve,

height sensor RR, pressure sensorpressure readout, height value as delta to

learned default position Lower to -20mm

below standard level

Test step 5 Compressor , drain valve,

Pressure accumulator test pressure sensor

6. Compressor test Compressor , drain valve Actuation of compressor relay, Open

drain valve

7. CDC valve FL CDC valve FL 2-stage current application to valves

Maximum current approx. 1.8 A

Minimum current approx. 0.05 A

8. CDC valve FR CDC valve FR 2-stage current application to valves

Maximum current approx. 1.8 A

Minimum current approx. 0.05 A

9. CDC valve RL CDC valve RL 2-stage current application to valves

Maximum current approx. 1.8 A

Minimum current approx. 0.05 A

10. CDC valve RR CDC valve RR 2-stage current application to valves

Maximum current approx. 1.8 A

Minimum current approx. 0.05 A

Activating/deactivating loading mode

Function description:

The vehicle suspension is set to LIFT mode. As soon as the vehicle suspension is in LIFT mode the vehicle level is locked, and can no longer be changed on the MMI.

Procedure:

Activation:

Self-diagnosis

Address word 34 (adaptive suspension)

· Function 16 Access authorisation

· Key-in code 10273 and confirm with Q key

The yellow fault lamp on the dash panel insert lights and

fault 00219 Loading level active is entered in the fault memory.

Deactivation:

Self-diagnosis

Address word 34 (adaptive suspension)

· Funktion 16 Access authorisation

· Key-in code 41172 and confirm with Q key

The yellow fault lamp on the dash panel insert goes out and

fault 00219 Loading level active is automatically cleared from the fault memory.

J197- Adaptive suspension control unit

Fitting location: The control unit is fitted behind the glove box on the front bulkhead.

Determining the height x:

The height x is the value in mm between the centre of the wheel and the bottom edge of the wing (see documents).

Dimension a: Rim diameter

Dimension b: Top edge of rim to bottom edge of wing

The height which must subsequently be entered is produced as follows:

x = a:2 + b

Standard running gear (1BK):

Specification, front axle = 416 mm

Specification, rear axle = 398 mm

Sports running gear (2MA):

Specification, front axle = 396 mm

Specification, rear axle = 378 mm

Sports running gear S8 (2MB):

Specification, front axle = 396 mm

Specification, rear axle = 378 mm

The MMI operating unit is located on the high centre console between the gearshift and the centre console.

-1- Joystick: The subfunctions are selected and activated by turning and pressing the joystick control.

-2- CAR function button: Pressing the CAR function button calls up the adaptive air suspension menu, from which the various vehicle levels can be selected;

see picture.

-3- SETUP function button:

Pressing the SETUP function button again in CAR

mode toggles between

I trailer mode (On/Off) and

I jack mode (On/Off).