"Beware of the ECC Fan" - Growls at Me

rayspurgeon · Jan 21st, 2003, 16:45

The ECC ventilation fan on my classic V70 has started to make a growling-like noise when running. Was previously almost inaudible. Pollen filter has been changed but problem/annoyance persists. Suggestions as to possible cause and remedy would be appreciated.

jaytee · Jan 21st, 2003, 21:53

The fan in my Merc van got really noisy last year and 'growled' I removed it as I was sure it was just dry bearings/bushes, I lubricated it with super-duper teflon lube and it was silent for about six weeks, then the growl returned, so I took it out and fitted a new fan/motor unit, about £75.00. You may get off with lubricating yours, but it's probably harder to access, certainly to get at both ends, maybe a long thin tube would work. I'm sure someone has more info.

Jim - 850 Tdi

Andy Mcl · Jan 22nd, 2003, 14:42

My 97 V70 Tdi is doing the same.
Have spent some time with the dealer and it turns out to be a servo motor controlling the recirculation flap and as fan speed builds up the flap seems to resonate. It is going in tomorrow to have new motor fitted hopefully will sort problem.
Test yours,
Turn the ECC off (fan auto to 0) wait a few moments and try slowly into manual it should go quiet if it does this means that the recirc flap servo motor is tired as it is not closing properly.
This also costs, the motor is £100 and the installation is about 2+hrs it will cost in the region of £250 to put right- ouch
SH*T happens!!
Cheers
Andy

rayspurgeon · Jan 27th, 2003, 13:37

Thanks Jim and Andy for your advice. It is very helpful. As you may guess local main dealer seems to find nothing to be concerned about.Perhaps that's because a few months left on warranty! Ray

Jan 21st, 2003, 16:45	#1
rayspurgeon VOC Member Last Online: Nov 8th, 2013 10:16 Join Date: Nov 2000 Location: Wiveliscombe	"Beware of the ECC Fan" - Growls at Me The ECC ventilation fan on my classic V70 has started to make a growling-like noise when running. Was previously almost inaudible. Pollen filter has been changed but problem/annoyance persists. Suggestions as to possible cause and remedy would be appreciated.

Jan 21st, 2003, 21:53	#2
jaytee Jim Last Online: Nov 30th, 2023 12:28 Join Date: Dec 2001 Location: Edinburgh	RE: "Beware of the ECC Fan" - Growls at Me The fan in my Merc van got really noisy last year and 'growled' I removed it as I was sure it was just dry bearings/bushes, I lubricated it with super-duper teflon lube and it was silent for about six weeks, then the growl returned, so I took it out and fitted a new fan/motor unit, about £75.00. You may get off with lubricating yours, but it's probably harder to access, certainly to get at both ends, maybe a long thin tube would work. I'm sure someone has more info. Jim - 850 Tdi

Jan 22nd, 2003, 14:42	#3
Andy Mcl Member Last Online: Apr 7th, 2024 16:50 Join Date: Nov 2001 Location: Ross-on-Wye	RE: "Beware of the ECC Fan" - Growls at Me My 97 V70 Tdi is doing the same. Have spent some time with the dealer and it turns out to be a servo motor controlling the recirculation flap and as fan speed builds up the flap seems to resonate. It is going in tomorrow to have new motor fitted hopefully will sort problem. Test yours, Turn the ECC off (fan auto to 0) wait a few moments and try slowly into manual it should go quiet if it does this means that the recirc flap servo motor is tired as it is not closing properly. This also costs, the motor is £100 and the installation is about 2+hrs it will cost in the region of £250 to put right- ouch SH*T happens!! Cheers Andy __________________ Cheers Andy Mcloughlin V70tdi 173bhp 277ft/lb IPD anti - roll bars Diesel power!!

Jan 27th, 2003, 13:37	#4
rayspurgeon VOC Member Last Online: Nov 8th, 2013 10:16 Join Date: Nov 2000 Location: Wiveliscombe	RE: "Beware of the ECC Fan" - Growls at Me Thanks Jim and Andy for your advice. It is very helpful. As you may guess local main dealer seems to find nothing to be concerned about.Perhaps that's because a few months left on warranty! Ray

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