bcredliner- where did you get your switched power source from, or is it entirely controlled by the thermoswitch? I usually find a non-critical power source underhood (switched on by ignition in acc, run, or start)(85) to power the relay, and I'll use the jumper posts already there for the main power(30) and ground(86).

The optional override switch(also 85), will be tied to the cigarette lighter (which powers off, "sleeps", after 16 minutes, so if I choose to, I'll switch it on to let the fan run 16 minutes after the engine's off.

So, if I can't find a switched power source underhood, I'll tie (85) back into (30), and let the thermoswitch control it all by temperature (but I'm fearful that it might fail, and leave the fan running for hours). I've always been able to locate switched power underhood before, but it's obscured in the X5.

UPDATED WIRING: Top drawing is info that came with the relay kit, second drawing is how I first installed it (bad manual switch was replaced), and third drawing shows the final wiring with switched power and adjustable thermostatic switch added.

Attached Images

   

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01 BMW X5 E53,3.0i-5L40E, 7/13/01
topas-blau,Leder-grau,"resto-project car"

Here:
14 Lexus ES350,3.5L-U660E
09 HHR Panel,2.2L-4T45E
04 Chevy 2500HD,6.0L-4L80E
98 GMC Sierra 1500,5.7L-4L60E

Gone:
66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake
08 Cobalt Coupe,2.2L-4T45E
69 & 75 C10s,350c.i.-TH350
86 S10,2.8L-700R4
73 Volvo 142,2.0L-MT4
72 & 73 VW SuperBeetles,1.6l-MT4
64 VW,1.2l-MT4
67 Dodge Monaco 500 2dr ht.,383c.i.-A727
56 Chevy 210 4dr,265c.i.-PGlide