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.

Note: If your car is from 1995 to 2000, with the round three big knobs on the heater, you’ll need to remove them first, by just pushing them firmly.

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

This tutorial was contributed to by it’s author “gatos”.. Original posted in Volvo Owners Club Forum


The instructions in this tutorial will work in the following models / years:

– 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 and 2004 Volvo S40
– 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 and 2004 Volvo v40

  1. Ed says:

    I Love Volvo’s, they are like LEGO-toys, elegantly heartwarming straightforward and honest. Thanks for the time patience and effort!

  2. Joao Carvalho says:


    Is it possible to change the older unit with the 3 big knobs (and the temperature switch between the vents) to these “newer”, cleaner ones?

    Thanks in advance.

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