I had this happened to me a few times already, during slow traffic, the temp would raise to just a bit before overheating (red zone) before the auxilary fan would kick in, but once it kicked in, it operates normally afterwards for the rest of the trip even in stop and go traffic.
Does this sound normal or is my auxilary fan fan is about to go? Should the temp be stay rock solid at the middle range???
i'd say there is something wrong. My temp gauge is pretty steady except under extreme conditions. After 6 or so hard laps at buttonwillow chasing a porsche in 106F heat, my temp gauge started climbing. When it's warm, or i'm in traffic, the aux fan seems to be running more often than not.
Mike
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Mike
91 M5 Alpine White II, Silver Gray 3/90 production
17x8/17x9 M system with PS2, 20mm touring roll bar; Ground Control Coilovers; EAT Chip, CD43; bmw/nardi blackline steering wheel, 3.8 Cam Gears
08 535i / 6 speed
Space Gray; Gray; Sport/Premium/Nav
00 M5 Ti Silver; Imola/black sportiv --Sold
Engine:
Supersprint Headers, Dinan CAI kit and MAFS, Throttle Bodies, Cams, Ported heads, Exhaust, Custom dinan software, Evosport Pullies, Dinan clutch and lightened flywheel; Ignition solutions plasma coils
Suspension:
Dinan Stage 3 with front and rear Strut Tower Braces, Beastpower Sway bar brackets, Dinan Wheels with 275/285 PilotSport, X5 Thrust arm bushings, Stoptech 355mm 4 piston front, 355mm 2 piston rear brake kit, Dinan 3.45 diff
Interior/Misc:
Eurodash, updated steering wheel, Bluetooth retrofit, Sirius Retrofit, hardwired V1, Widescreen Mk4 nav, M audio retrofit, Ice Link, BSW Stage 1 speaker upgrade, bmw towbar
I have the same problem from time to time, seems to happen when I am extremely gentle with the car while it is still warming-up (stuck in traffic). Its gets to a bit over 3/4 on the temp. gauge.
I have the same problem from time to time, seems to happen when I am extremely gentle with the car while it is still warming-up (stuck in traffic). Its gets to a bit over 3/4 on the temp. gauge.
Thermostat would be my guess?
Is it possible what you are really seeing is the thermostat initially opening on a warming up engine? On many cars, the gauge will get a little over normal because no water is flowing. Once water starts to flow, gauge comes down within seconds. I wouldn't expect the aux fan to kick on when the thermostat first opens since the car is really not hot yet. Admittedly, I have not noticed it in the Beast, but I have seen this on my other vehicles.
Regards,
Jerry
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'01 Black/caramel
Dinan Stage 3 suspension, SS jet coated headers, ESS SC kit, open brake ducts, Hamann front splitters, TEC cupholder, U.S.(Euro style) tilt/slide armrest, 6k HID fogs, 6k super white low beams, V1/Stealth1, dual head LI, 2.65 diff w/40% lockup/2x dynamic, compact spare, Euro trailer hitch, Mocal oil cooler, ACS type rear spoiler, Rogue custom SSK and tranny mounts, ST 355 BBK (fronts), BP sway bar brackets, Bluetooth retrofit
On a somewhat related note, I dont have problems with my temp spiking, but my aux fan turns on as soon as I start the car (even in the morning). Anyone else have an overeager fan?
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Sean
02 996TT Cargraphic Exhaust (Loud)
02 M5 - Titanium Silver (Sold to Brother) UUC V12 Clutch Conversion Bilstein PSS9 Coilovers Eibach Sway Bars (front and rear) Tranny Mounts Pinnacle Ceramic Tint Britalman Exhaust Icelink iPod BSW Stage 1 (Rainbow) BSW Rear-deck Sub Powerchip Gold 91 Ground Control Adjustable Camber Plates Strong Strut Front Brace (Silver with holes)
On a somewhat related note, I dont have problems with my temp spiking, but my aux fan turns on as soon as I start the car (even in the morning). Anyone else have an overeager fan?
I'll have to check mine in the morning, but I think it runs if the AC is on.
Regards,
Jerry
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'01 Black/caramel
Dinan Stage 3 suspension, SS jet coated headers, ESS SC kit, open brake ducts, Hamann front splitters, TEC cupholder, U.S.(Euro style) tilt/slide armrest, 6k HID fogs, 6k super white low beams, V1/Stealth1, dual head LI, 2.65 diff w/40% lockup/2x dynamic, compact spare, Euro trailer hitch, Mocal oil cooler, ACS type rear spoiler, Rogue custom SSK and tranny mounts, ST 355 BBK (fronts), BP sway bar brackets, Bluetooth retrofit
they aux fan should run at varying speeds. It goes on with the ac, but kicks into high speed when the temp gets above a certain level. There have been issues and possibly a recall for 01 model years fans.(not sure, might want to search)
Mike
__________________
Mike
91 M5 Alpine White II, Silver Gray 3/90 production
17x8/17x9 M system with PS2, 20mm touring roll bar; Ground Control Coilovers; EAT Chip, CD43; bmw/nardi blackline steering wheel, 3.8 Cam Gears
08 535i / 6 speed
Space Gray; Gray; Sport/Premium/Nav
00 M5 Ti Silver; Imola/black sportiv --Sold
Engine:
Supersprint Headers, Dinan CAI kit and MAFS, Throttle Bodies, Cams, Ported heads, Exhaust, Custom dinan software, Evosport Pullies, Dinan clutch and lightened flywheel; Ignition solutions plasma coils
Suspension:
Dinan Stage 3 with front and rear Strut Tower Braces, Beastpower Sway bar brackets, Dinan Wheels with 275/285 PilotSport, X5 Thrust arm bushings, Stoptech 355mm 4 piston front, 355mm 2 piston rear brake kit, Dinan 3.45 diff
Interior/Misc:
Eurodash, updated steering wheel, Bluetooth retrofit, Sirius Retrofit, hardwired V1, Widescreen Mk4 nav, M audio retrofit, Ice Link, BSW Stage 1 speaker upgrade, bmw towbar
If its during warmup I would think its the thermostat just opening a bit on the late side, so water is not circulating to the radiator. The aux fan could already be running (depending on where the temp. sensor is), but no coolant to cool. Once the thermostat cracks open, all systems go. Slight mechanical delay from the thermostat.
Linear Mode
