Audi Q5: General Information
Tire Pressure Monitoring System General Information
Follow the information in the Owner's Manual.
If the vehicle has a tire pressure monitoring system display, it will be documented on the vehicle data label or in ELSA in Vehicle-Specific Information under "Vehicle Data" by the PR number.
With the help of the ABS speed sensor, the tire pressure monitoring system compares both the rolling circumference and the vibration behavior of the individual tires. The instrument cluster display shows if there are any changes to one or more wheels. If only one wheel is affected, the location of the wheel will be indicated.
The tire pressure monitoring system is a software module in the ESP/ABS control module for detecting slow losses of pressure at a wheel location. With the help of the ABS speed sensors, the TPMS compares the speed and rolling circumference of the individuals tires. If the rolling circumference of a tire changes, the tire pressure monitoring system indicator lamp turns on in the instrument cluster. Rolling circumference of tire may be change if:
- the tire pressure is too low.
- the tire has structural damage.
- the tire or the pressure was changed and the tire pressures were not saved.
- the vehicle is loaded on one side.
- the tires on one axle are loaded more heavily (e.g. when towing a trailer or driving up and down inclines).
- Snow chains are installed.
- the spare tire is installed.
- one tire per axle was changed (or if the tires were rotated from front to back or the other way around).
- The left and right wheels drive on different surfaces for an extended period of time.
Tire pressure monitoring display appearing
The tire pressure monitoring display in the instrument cluster informs the driver if the tire pressure is too low or if there is a system malfunction.
System fault in the TPMS display (TPMS Display +)
If the indicator lamp blinks for approximately 1 minute after switching the ignition on and then stays on continuously, there is a system malfunction. "TPMS" is also displayed in the instrument cluster.
A fault in the system is stored in the ABS/ESP control module event memory and is indicated by a flashing yellow TPMS+ lamp in the instrument cluster (1 minute after the ignition is switched on). The tire pressure monitoring system lamp cannot be switched off by pressing the Multimedia System Control Head -E380- button. Proceed as follows if there is a fault stored in the DTC memory.
- Select the "Guided Fault Finding" using the Vehicle Diagnostic Tester.
- Select the corresponding program in "Guided Functions".
- Follow the prompts on the screen.
Perform calibration: (readapt tire pressure)
The tire pressures must be saved in either the radio or MMI (depending on equipment) each time the pressure or a tire is changed.
- Switch the ignition on, select the "CAR" function button and select the tire pressure monitoring system using the Multimedia System Control Head -E380- knob and save the tire pressure by pressing the rotary knob.
Tire Pressure Monitoring System (TPMS) General Information
Observe notes about usage in your Owner's Manual.
If the vehicle has a tire pressure monitoring system display, it will be documented on the vehicle data label or in ELSA in Vehicle-Specific Information under "Vehicle Data" by the PR number.
The tire pressure monitoring system monitors the pressure of the four tires while driving.
Damaged Tire Pressure Monitoring Sensors should be replaced for safety reasons.
Do not clean the Tire Pressure Monitoring Sensors with steam blasting or strong compressed air.
For safety reasons, replace the Tire Pressure Monitoring Sensortire pressure monitoring sensor and clean the rim after using tire sealant.
The tire pressure monitoring system consists of a control module, a central antenna integrated in the control module and one Tire Pressure Monitoring Sensor in each of the four wheels.
If wheel positions on the vehicle are changed, tires are changed, Tire Pressure Monitoring Sensors are replaced or pressures are changed, control module must be readapted.
Note
When changing a tire with Tire Pressure Monitoring Sensors (summer/winter tires), check the tire pressure and adapt the sensor to the control module.
A fault may be saved in the DTC memory if:
There is a system malfunction.
When installing less than four wheels with Tire Pressure Monitoring Sensors.
When installing tires or incorrect Tire Pressure Monitoring Sensors. (If this is the case, the yellow warning lamp in the instrument cluster "system malfunction diagram" illuminates and cannot be deactivated by the system.)
The system has detected new sensors but the Multimedia System Control Head -E380- button was not been pressed to confirm the current tire pressures. (In this case, the system malfunction is erased by pressing the button.)
Driveshaft General Information
The wheel bearing must not be under a load while the driveshaft threaded connection on the wheel side is loose.
If the bearings are loaded by the vehicle weight the wheel bearing will be damaged. This reduces the service life of the wheel bearings. Therefore observe the following:
- Procedure for loosening driveshaft to wheel hub bolted connection. Refer to → Chapter "Drive Axle Threaded Connection, Loosening and Tightening".
Vehicles without a driveshaft must not be moved, otherwise the wheel bearing will be damaged. If vehicle does have to be moved, always note the following points:
- Install an outer joint in place of the drive axle.
- Tighten the outer joint to 200 Nm.
Do not let the driveshaft hang down. The inner joint could be damaged if it is bent too far.
WARNING
There is a risk of injury if the engine starts automatically in vehicles with the Start/Stop System.
- For vehicles with an activated Start/Stop System (recognizable from a notification in the instrument cluster), the motor can be started automatically if needed.
- Make sure that the start/stop system is deactivated when working on the vehicle (turn off the ignition, turn on the ignition when necessary).
WARNING
Handling the high voltage cables:
- Do not support yourself on or place tools on the high voltage cables and their components. This causes damage to the insulation.
- Do not sharply bend or kink high voltage cables as this causes damage to the insulation.
- The round high voltage connectors are color coded with an exterior colored ring and mechanically coded with guide or code tabs. The codes must be observed when connecting the round high voltage connector to avoid mechanical damage to the high voltage connector.
WARNING
The engine could start unexpectedly.
For general work performed on the high voltage vehicle, the ignition must be switched off and the key must be kept outside of the vehicle interior.
DANGER!
There is extremely dangerous voltage if high voltage components are damaged
Note the following when working near high voltage components and high voltage cables:
- Cutting, deformed, and sharp edged tools or heat sources such as welding, solder, hot air and thermal glue are forbidden.
- Visually inspect the work area before working on high voltage components.
- Perform a visual inspection of the Electric Drive Power and Control Electronics -JX1-, the Electro-Drive Drive Motor -V141-, the Electrical A/C Compressor -V470- and the high voltage cables when working in the engine compartment.
- Visually inspect the high voltage cables and the covers when working on the underbody.
- Visually inspect the high voltage cables and the E-box with the High Voltage System Maintenance Connector -TW- when working in the luggage compartment.
- Visually inspect all potential equalization cables.
Observe the following when performing the visual inspection:
- None of the components have any external damage.
- The insulation on the high voltage cables and the potential equalization cables is not damaged.
- The high voltage cables must not have any unusual deformations.
- Each high voltage component must be marked with a red warning label.
DANGER!
When working on vehicles with the ignition switched on or with ready mode activated, there is a risk of the engine starting unexpectedly and of gas poisoning in enclosed areas. Risk of body parts and/or clothing being pinched or pulled.
Perform the following before switching on the ignition:
- Move the selector lever into P.
- Activate the parking brake.
- Turn off the ignition.
- Open the hood
- Connect the charger, such as the Battery Charger -VAS5095A- to the jump start point on the 12V vehicle electrical system.
- Switch the ignition on.
Dynamic Steering General Information
In conventional steering system, there is a direct mechanical connection between the steering wheel and the steering gear. That means there is a constant, specific relationship between the angle of the steering wheel and the angle of the wheels. In this version, only one ratio can be used in a vehicle. Selecting the appropriate ratio is a compromise because the different and somewhat contradictory requirements must be satisfied as best as possible.
The important requirements can only be fulfilled optimally by a variable ratio. Such a ratio changes the actual steering angle of the wheels depending on the vehicle speed and steering angle. Dynamic steering generally implements two variable ratios with comfortable and sporty characteristics.
The variable ratios are implemented by an additional electromechanical steering pinion actuator that superimposes the driver's steering movement. In emergencies such an actuator malfunction, the steering functions exactly like conventional steering. The mechanical connection between the steering wheel and the front axle is not disconnected.
The advantages of dynamic steering are even more extensive. The system is also activated in conjunction with the ESP and its sensors under poor driving conditions. Through selective variation of the front wheel steering angle, the dynamic steering supports the ESP within dynamic driving limits.
The "actuator" located on the steering column is a fixed component of the column. If the "actuator" is faulty, the entire steering column must be replaced.
The "valve" located on the power steering pump is a fixed component of the pump. If the "valve" is faulty, the entire power steering pump must be replaced.
Correct basic setting is required for proper dynamic steering function.
Note
To successfully perform the basic setting, the Steering Angle Sensor -G85- must first be calibrated using the Steering Wheel Scales -VAS6458-.
A basic setting is necessary if:
- the Active Steering Control Module -J792- is replaced.
- the front axle toe is adjusted.
- the rear axle toe is adjusted.
- the vehicle suspension was changed, for example, changing from standard to sport suspension.
- the Steering Angle Sensor -G85- was calibrated.
- the steering column was replaced.
- the steering wheel is at an angle when driving straight.
Note
Before performing a basic setting on the dynamic steering, check the event memory and correct any faults. A basic setting to the dynamic steering must only be performed using alignment equipment approved by VW/Audi.
Adaptive Cruise Control (ACC) General Information
Distance Regulation Sensor and Distance Regulation Control Module -J428- are installed in one housing. If sensor/control module is faulty, entire unit must be replaced.
In the following description, the sensor/control module unit is identified as the "sensor".
The sensor is located behind the front bumper right air intake grille.
Malfunctions can occur due to contamination on the sensor. Remove the air intake grille in front of the sensor according to the repair manual and clean the sensor.
Before performing ACC adjustment, DTC memory must be interrogated and malfunctions corrected.
ACC control module "measured value block 2" shows whether sensor is only slightly misaligned.
The ACC adjustment may only be set using a VW/Audi-approved wheel alignment tester and adjustment device!
A correct adjustment is required for perfect ACC function.
Note
- A new adjustment is necessary if:
- The rear axle toe was adjusted.
- The complete Adaptive Cruise Control Sensor -G550- was replaced.
- Alignment work performed on the right longitudinal member.
- The lock carrier was loosened or adjusted.
- There is damage to the lock carrier.
- The adjustment angle is greater than -0.8º to +0.8º.
Lane Assist, General Information
Lane assist helps the driver keep the vehicle in its lane. If the system is in operation and the vehicle approaches a recognized boundary line and will leave the lane, the driver is notified by a vibration in the steering wheel. If the system is in operation and the turn signal is activated before driving over a recognized boundary, the warning is not given because the system assumes it is an intentional lane change.
The steering wheel is equipped with a vibration motor to create the steering wheel vibration. The vibration motor is encased in foam in the lower right spoke of the steering wheel. The steering wheel vibrations are generated by a rotating weight installed on the motor. It cannot be replaced separately. The entire steering wheel motor must be replaced if the vibration motor is faulty. Refer to → Chapter "Steering Wheel, Removing and Installing". The duration of the steering wheel vibration depends on the driver reaction and generally lasts about one second.
The camera and Directional Stabilization Assistance Control Module -J759- are installed in one housing. The entire unit must be replaced if the camera or control module is faulty.
The Directional Stabilization Assistance Control Module -J759- is installed at the center of the top edge of the windshield at the level of the interior rearview mirror. It is secured in a bracket that is bonded to the windshield.
Changes that restrict the visual area of the camera (such as applying labels, stone damage) can lead to malfunctions.
The button for the Directional Stabilization Assistance -E517- is integrated in a mount with the turn signal lever. Pressing the button switches the system on and off. If the Directional Stabilization Assistance Button -E517- is faulty, the mount must be completely replaced along with the Cruise Control Switch -E45- and the Windshield Wiper/Washer Switch -E22-. Refer to → Electrical Equipment; Rep. Gr.94; Steering Column Switch Module; Steering Column Switch Module, Removing and Installing.
Note
The message "Audi lane assist not available: no sensor range at this time" appears if the camera function is no longer available due to ongoing poor visibility of the lane lines. It may be due to the following causes.
- The camera visual field is dirty or icy. If that is the problem, it should be corrected.
- There is condensation on the camera visual field. If this is the case, wait until the condensation disappears.
- Lane lines are not visible for an extended period of time due to road conditions (such as snow on the road surface).
If the condensation does not clear on its own or if there is heavy dirt on the inside of the lens (in the camera visual field), the camera visual field must be cleaned by hand. To do this, remove the control module and the lens hood and clean the windshield using Cleaning Solution. Control Module and Lens Screen, Removing. Refer to → Chapter "Directional Stabilization Assistance Control Module -J759- and Lens, Removing and Installing".
The calibration must be correct for proper lane assist function.
Calibration is necessary if:
- "No or incorrect basic setting/adaptation" is stored actively in the DTC memory.
- the Directional Stabilization Assistance Control Module -J759- is replaced.
- The windshield is replaced or removed.
- the rear axle toe is adjusted.
- the vehicle suspension was changed, for example, changing from standard to sport suspension.
- The level control system sensor on vehicles with electronically controlled damping was adapted.
Note
Before calibrating the lane assist, check the event memory and correct any faults. To calibrate the lane assist, the vehicle driving direction must be specified and serves as the reference position for the Setting Device Basic Set -VAS6430/1A-. The lane assist must only be calibrated using alignment equipment approved by VW/Audi. Only use the Setting Device Basic Set -VAS6430/1A- to calibrate the lane assist.
