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Brake Light Switch Replacement
 
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Pelican Technical Article:

Brake Light Switch Replacement

Jared Fenton

Time:

2 hours2 hrs

Tab:

$10

Talent:

**

Tools:

your fingers

Applicable Models:

Audi A6 (1997-04)
Audi A6 Quattro (1997-04)
Audi S6 (2002-03)

Parts Required:

Brake Light Switch

Hot Tip:

Use care when fitting the switch, it's a little tricky

Performance Gain:

Working brake lights

Complementary Modification:

Replace courtesy light bulb

The C5 A6 uses a pushrod style brake switch to activate the brake lights. Over time, the plastic pushrod can wear and the switch can fail. In this article, I'll go over the steps involved with replacing the switch.

The first step is to remove the lower dashboard panel for access. See our article on Lower Dashboard Panel Removal for more information. Note that you'll also need to measure the distance between the switch pushrod and the mounting plate. The new switch needs to be adjusted to the same length.

NOTE: Please be aware that Audi did a VIN split on this particular switch. Some of the cars require a 4 pin connector version of this switch. For the purposes of this article, our project car did not come equipped with the 4 pin version. The procedure is the same, only the connector switch is different. 

Our vehicle may vary slightly from yours as models do change and evolve as they grow older. If something seems different, let us know and share your info to help other users. Questions or want to add to the article? Leave a comment below. When leaving a comment, please include your vehicle information.

You'll need to remove the lower dashboard panel to gain access to the brake light switch.
Figure 1

You'll need to remove the lower dashboard panel to gain access to the brake light switch. See our article on Lower Dashboard Panel Removal for more information.

Pull the electrical connector off the back of the brake light switch (green arrow).
Figure 2

Pull the electrical connector off the back of the brake light switch (green arrow).

Unscrew the brake light switch from the mounting plate (green arrow).
Figure 3

Unscrew the brake light switch from the mounting plate (green arrow). Make sure to measure the distance beforehand.

Shown here is a new switch.
Figure 4

Shown here is a new switch. Note the threaded portion. This needs to match the old switch. Once adjusted, put the electrical connector back on and re-fit the lower dashboard panel.

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