Question about 1998 Volvo S70
1. Has always supplied poor heat flow to the floor area.
2. Has always blown hot air up the windscreen despite correct directional flow settings.
3. Now blowing hot air to the passenger side instead of cold when selected.
4. The temperature dial turning freely instead of with little clicks.
This may be one or two different problems. One could be the climate control unit itself. Surprisingly the problem with the air not changing the source will likely be remedied by a reprogramming by a Volvo dealer. Defrost is the delfault outlet if there is a problem with that system. As for the dial not having detents and the cold instead of hot air in the pass side, that could be programming, a disconnect with the heater door for the passenger side or it could be the control unit. 98 is a difficult year to diagnose and the dealer is likely the only one who can properly diagnose this car. The download at the dealer is an inexpensive fix. If there is a mechanical problem within the air system that could prove more costly. I'm not sure how much the control unit for the climate control system, but there are usually quite a few on ebay. Good luck and I would suggest visiting the dealer first for this one as it is the least expensive fix and could very well be the only problem.
Posted on Feb 20, 2009
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Posted on Jan 02, 2017
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