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Audi A4 Climate Control Removal
 
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Pelican Technical Article:

Audi A4 Climate Control Removal

Steve Vernon

Time:

1 hour1 hr

Tab:

$1400

Talent:

*

Tools:

Radio removal tools

Applicable Models:

Audi A4 (2002-05)
Audi A4 Cabriolet (2003-06)

Parts Required:

Climate control unit

Hot Tip:

Do not try and remove the radio without the proper tools

Performance Gain:

Working climate control system

Complementary Modification:

Clean air vents

The climate control unit in the Audi A4 is not a high failure item, which is good because it is NOT cheap, but some of them do eventually wear out. You will also need to remove the climate control unit if you are removing the center console for work or replacement.

The radio will need to come out first and you will need the special radio removal tools to get the radio out without causing damage to the interior or possibly the electronics of the vehicle. You will need four VAG T10057 radio removal tools or four pry hooks that will work with the Symphony radio in the vehicle.

Begin by disconnecting the ground strap (red arrow) from the battery's negative terminal (red arrow).
Figure 1

Begin by disconnecting the ground strap (red arrow) from the battery's negative terminal (red arrow). Please see our article on battery tending and removal for further assistance.

You will need the special radio removal tools to get the radio out without causing damage to the interior or possibly the electronics of the vehicle.
Figure 2

You will need the special radio removal tools to get the radio out without causing damage to the interior or possibly the electronics of the vehicle. You will need four VAG T10057 radio removal tools or four pry hooks that will work with the Symphony radio in the vehicle. This is not the special tool from VAG but an aftermarket one (red arrow)

Insert the four hooked tools with the hooks facing inward.
Figure 3

Insert the four hooked tools with the hooks facing inward. There are four access slots that the tools slip into (red arrows).

You will hear the clips snap into place and release the holding mechanism.
Figure 4

You will hear the clips snap into place and release the holding mechanism. Then gently wiggle and pull the radio straight out (red arrow).

Remove the three wiring connections on the left side of the rear of the unit (red, yellow and green arrows).
Figure 5

Remove the three wiring connections on the left side of the rear of the unit (red, yellow and green arrows).

Remove the antenna and amp connections (red and yellow arrows).
Figure 6

Remove the antenna and amp connections (red and yellow arrows). Installation is the reverse of removal. Make sure to remove the tools before installing. Then slide the unit into the dash until it locks in place.

With the radio removed, reach into the opening above the climate control unit with your hand and gently push the unit forward (red arrow).
Figure 7

With the radio removed, reach into the opening above the climate control unit with your hand and gently push the unit forward (red arrow).

Tilt the unit forward so you can have access to the wiring on the rear (red arrow).
Figure 8

Tilt the unit forward so you can have access to the wiring on the rear (red arrow).

Disconnect the wiring harnesses by pushing in the small clips and then wiggling the connections out.
Figure 9

Disconnect the wiring harnesses by pushing in the small clips and then wiggling the connections out. The clips are small (red arrows), so use care not to break them.

The wiring connections will only fit one way into the rear of the unit, so you do not need to worry about mixing them up.
Figure 10

The wiring connections will only fit one way into the rear of the unit, so you do not need to worry about mixing them up. Installation is the reverse of removal.
Picture 6:

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Comments and Suggestions:
Rob Comments: Thanks for the prompt reply. I tried to remove the unit from the car but couldn't get it out. It is different from the one you picture with your removal instructions in that it has two small hex head screws holding it in. I removed those but it seems to have some clips? holding in the bottom that I couldn't seem to negotiate.
Rob
November 18, 2016
  Followup from the Pelican Staff: if different I am not sure. I would grab a repair manual. It will have the procedure, special tools and torque specs.


Give our parts specialists a call at 1-888-280-7799. - Nick at Pelican Parts
 
Rob Comments: If I replace the climate control # 4B0 820 043AD with a # 4B0 820 043L will it work? or need re-coding?
2002 Audi A6Q 3.0
Thanks,
Rob
November 18, 2016
  Followup from the Pelican Staff: You won't know unless you read the coding numbers out of it to see if they match. it will at the minimum need coding. - Nick at Pelican Parts  

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