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Audi A4 Workshop Service and Auto Repair Manuals

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Removing and installing left and right air ducts at drive batteryA2 > < Removing and installing front exhaust air duct for drive batteryA2

Removing and Installing Supply Air Duct for Drive Battery-A2

Removing and installing supply air duct for drive batteryA2
Removing and installing supply air duct for drive battery -A2-
Vehicles with a high-voltage system (hybrid vehicles)
For all work on vehicles with a high-voltage system, pay attention to the additional warnings for such vehicles → Chapter and → Electrical system; Rep. gr.93.
As work in the vicinity of high-voltage system components is necessary for the following sequence of operations, perform „Visual inspection of high-voltage components and cables for damage“ → Chapter and heed the „General warnings for working on high-voltage system“ → Electrical system; Rep. gr.93
  WARNING
Danger from unexpected engine starting
When performing general work on vehicles with a high-voltage system, switch off the ignition and remove the ignition key from the passenger compartment.
  WARNING
Working on vehicles with high-voltage wiring:
l  Do not support yourself or tools on high-voltage wiring or associated components --> this can damage the insulation.
l  High-voltage wiring must not be excessively bent or kinked --> this can damage the insulation.
l  The round high-voltage connectors are colour-coded with an external coloured ring and are provided with mechanical coding or guide lugs. It is important to observe this coding when joining up the round high-voltage connectors, otherwise the connectors can be damaged.
  DANGER!
Risk of fatal injury if high-voltage components are damaged.
Observe the following when working in the vicinity of high-voltage components or wiring:
t  It is not permitted to use cutting or forming tools, other sharp-edged tools or heat sources such as welding, brazing, soldering, hot air or thermal bonding equipment.
t  Before starting work, visually inspect the high-voltage components in the areas involved.
t  Before working in the engine compartment, visually inspect the power electronics -JX1-, electric drive motor -V141-, air conditioner compressor -V470- and high-voltage wiring.
t  Before working on the vehicle underbody, visually inspect the high-voltage wiring and covers.
t  Before working on the rear section of the vehicle, visually inspect the high-voltage wiring and the electro-box with the maintenance connector for high-voltage system - TW -.
t  Visually inspect all potential equalisation lines.
Check the following when making the visual inspection:
t  There must be no external damage on any component.
t  The insulation of the high-voltage wiring and potential equalisation lines must not be damaged.
t  There must be no unusual deformation of the high-voltage wiring.
t  All high-voltage components must be identified by a red warning sticker.
Removing
–  Switch off the ignition.
–  Remove the rear exhaust air duct for the drive battery → Chapter.
–  Remove the front exhaust air duct for the drive battery → Chapter.
   
–  If fitted, screw out the bolts -3, 7- on the left and right.
–  Release the retainer tabs -8- at the front and rear and detach the supply air duct -1- from the battery cooling module -6-.
–  Carefully unclip the supply air duct from the fasteners -4- of the left -2- and right -5- air ducts and detach.
  A87-11134
Installing
Install in reverse order; paying attention to the following:
  Note
If the fasteners no longer hold or if one of the retainer tabs breaks off, the air duct can also be secured with a bolt -5- at the battery cooling module -6- and with bolts -2, 3- at the left -1- and right -4- air ducts.
–  Start by clipping in the supply air duct at the battery cooling module -6--arrow B-. Then clip into the left -1- and right -4- air ducts -arrows A-.
–  Re-install all the other parts removed in reverse order.
  A87-11135

Removing and installing left and right air ducts at drive batteryA2 > < Removing and installing front exhaust air duct for drive batteryA2