Volvo S40 V40 Hazard / Warning Light Switch 1996-2004 in perfect working order.

See below my guide of how to replace the Hazard Light Switch. It is the same for all Phase 2 cars from 2000-2004. The process is slightly different on the Phase 1 models from 1996-2000.

There are 2 ways to remove the Hazard Light Switch. I have followed both ways and posted photos so you can choose whichever you think is easier to follow


First of all remove the fascia form the heater control panel. I use my Leatherman blade to prise it off from one side and then the other.


Undo all four screws


The Heater Control Unit is also secured by this clip on that slot. To remove the Heater Control Unit you need to push it in slightly and it will prise off easily. Pay attention when you put everything back together as you must make sure you secure it back the correct way.


There are two connectors plugged in the Heater Control Unit. Best way to remove it is to push it in diagonally and unclip the first connector.


You can then remove the Heater Control Unit partially outwards and unplug the second connector


Now here is where there are two ways to do it. I personally use the first method, as I am used to it and I know where and what the parts look like.


Method 1

Put your hands in there and try to feel the two clips securing the Hazard Light Switch. See the next two images to get an idea of what you should be feeling for.


You need to push the two clips gently inwards and push the Hazard Light Switch inwards


A close up:


You will need to wiggle out the switch so it is in this position. Then you can easily unclip it and replace it with your new switch. 



Method 2


This is the method I used the very first time I had to replace my Hazard Light Switch. It is a lot more trickier in my opinion and you face a small risk of breaking something, or losing small bits. 

You will need to remove both vents. Again, I used my trusted Leatherman to prise off each vent. 



This is a bit tricky too if it is the first time you have ever tried it. You need to push those clips downwards. See also next photo. The best way I found out is to do the right side one first and pull the fascia outwards and then do the left hand side one




Then you just pull out the fascia outwards and very easily disconnect the Hazard Light Switch and replace it with the new one


JOB DONE


And here are some close up images of the switch. If you want to take it apart to try to repair it, you need to push in this clip and do the same on the other side




This small metal bit is the one moving from left to right locking and unlocking the Hazard Light Switch. The tip of it moves in some grooves which makes it move from left to right. I have tried in the past to repair an old Hazard Light Switch I had but had no luck whatsoever with it. 
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