Do you mean the fan(s) that blow air into the cabin?
If so, this works totally independently of the AC as it's used for heating
- or just fresh air. If it's not running at all, it's likely the final
stage resistor burnt out, and any dealer should have got this immediately
as it's a *very* common fault on an E39. Costs about 50 quid for the part
and is DIY possible, although slightly fiddly.
*If you don't pay your exorcist you get repossessed.*
Dave Plowman email@example.com London SW
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