If you own one of these cars long enough there is a good chance that someday you’ll experience a failed ignition switch. When the switch fails it typically sticks in the ‘start’ position which will keep the starter engaged and cause things such as your power windows, radio, and climate control to stop functioning.
If you look in the factory repair manual it will tell you to remove the entire steering wheel and instrument cluster. While that would make access easier it is not essential to do so. For the process detailed below both the steering wheel and instrument cluster were left in the car. The cluster will be repositioned in order to allow for access to the switch however it was not unplugged or removed from the car.
OK, so what will you need for this operation?
- Small flat screwdriver (see photo for an idea on the size)
- Medium Phillips screwdriver
- Small towel to cover top of steering wheel switch panel (to avoid scratching it with instrument cluster once moved out of the way)
- Telescoping mirror (comes in very handy although not essential)
- Light. A small fluorescent work light worked well for my purposes. Just don’t use anything HOT as you don’t want to melt any of the wiring harnesses in the dash.
- Thread locker (Loctite etc.)
- A few cotton swabs (Q-tips)
- New Ignition Switch. Audi Part Number 4A0 905 849B
- Patience.. and smaller hands help too. 😉
- A telescoping magnet retrieval tool may come in handy as well… in the event you drop something in the dash. Let’s hope for the best however!
- Time: If you are new to this sort of thing allocate about 2 hours start to finish. If all goes in your favor and you’re a handy individual I suspect it could be done in about 45 mins.
Let’s get started… step by step:
- Remove the lower instrument cluster bezel trim. There are two Phillips type screws that you will need to remove first. one is up from the ignition itself and the other is on the opposite side of the steering wheel. once the screws are out pull the bezel from the far left (USA driver side) out and toward the left. There is a small peg that goes into the passenger side of the dash that helps hold the trim piece in place. That part was simple enough right?
- Now we need to get the instrument cluster out of the way. It is held in place by three more phillips type screws located along the bottom of the cluster. These screws go through clips that help hold the cluster in place.
- Drop your steering wheel to the lowest position and then cover the top portion of the wheel and stalk with your towel.
- Time to pull the instrument cluster out a bit. Grab it at the bottom and pull out… these can be a bit snug so be forewarned! I generally find that pulling and wiggling a bit more from the passenger side helps it slide out. We’re not pulling it all the way out, we’re just going to reposition it so we can get at the switch. (While the cluster is in this state it might be a good time to replace or upgrade your cluster illumination as well.)
- Now we need to remove the switch itself. Keep in mind we’re only going to be doing the electrical portion of the switch and not the entire lock cylinder. Make sure your ignition switch is in the OFF position. (Being left handed I found that working from the passenger seat suited me better but your preference may differ.) There is a small relay box looking part to the upper right of the switch… it has a clip that just slides on to part of the car. Slide it off and set it to the side for extra room. There are two small flat screws that must be loosened before you can remove the switch assembly. You can spot these screws because they are typically visible as two small red dots. The red dots are the thread locker used at the factory once the switch was installed. You now have the rather tedious task of removing the thread locker in oder to get at the screws. I was able to do this with a little force and repitition with my small flat screwdriver. Just keep at it and use a damp swab to clean the area as you work. Don’t get too crazy here as you don’t want to end up stripping out