i have two m103 (190E 2.6 & a 300SE). How does one know when the fan clutch is going or has died?

__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k

Hi
Engine starts to heat up in traffic (>100C), even at moderate temperatures and AC off.
Bruno

__________________
_
1992 300TE 160 kmiles

turn engine off.... radiator fan should stop almost immediately.. if it spins.. it is going or on its way.

__________________
1989 300ce 129k
( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone)

1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus

1994 e320 Cabriolet 108k



1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it


[/SIGPIC]

Lee, the fan clutch on my '91 has always had the following characteristics:
- Engine cold before cranking - resistance in clutch, when you spin it by hand it will stop within 1/8 of a turn.
- Engine fully warm, between 80-95 degrees. Very easy to turn, will spin at least one revolution if you spin it by hand. You think it's bad it's so loose.
- Engine hot, 100 or above. Tightens up again, similar to when cold.

The fan is very quiet at normal operating range, but when the engine gets up near 100 degrees C, you can hear the fan howl as you accelerate. the electric fans come on about 110 and off again at 100.

DG

I'm just going to have to up load some videos i guess..im very confused about these fans. I'll post up later on tonight. Expect 1-2 m103's and two 617s.

Thanks for the diagnostic assistance gents.

__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k

I've had the same observations as S-Class Guru.

If your motor is good and warmed up from a fairly long drive and you've just pulled in the drive way, leave it idling, pop hood and have someone turn off ignition while you watch the fan. If the clutch is doing it's job, the fan will stop spinning pretty quick.

__________________
Mike Murrell
1991 300-SEL - Model 126
M103 - SOHC
"Fräulein"

ok got the vid:



compared to my two 617's (both stop almost at the same time as the engine is turned off maybe 1second after) this looks shot.

am i right?
sorry bout the crap quality

__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k

If they are not fairly stiff cold, the fluid has all leaked out and they won't work. You CAN refill them, Toyota has the fluid, but the easy thing to to put a new one on.

Peter

__________________
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!

You sir, have a dead clutch there.

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]