Engine: D5: - whirring esque noise

wg53 · Jul 26th, 2011, 21:29

hi, my 130k miles d5 has just developed a whirring type noise from the pulley side of the engine. Frequency changes with rpm, not road speed.at this mileage is it likely to be the oil or coolant pump, or anything else. thanks richard

Clan · Jul 26th, 2011, 21:33

It is most likely one of the black plasic wheels on the Aux belt driving the alternator ...

wg53 · Jul 26th, 2011, 22:28

thank you, i am away from home on a course at the moment so i cant get it checked for a week or 2, i had it in my head that the worse thing would be bearings in the oil pump. Rich

RAN60 · Jul 27th, 2011, 08:01

Do not let that noise get any worse!!!!

I was lucky i checked mine when it was making the noise as when i was under the bonnet trying to track said "noise" low and behold the tensioner wheel decided to pop off, just in time for me to shut the engine off.

If these pulleys fail while driving they CAN destroy an engine by damaging the timing belt housing and getting all tangled up.

Get it seen to ASAP just as a precaution.

Thassos · Jul 27th, 2011, 09:11

Diagram attached...

wg53 · Aug 5th, 2011, 18:08

Yes it was the tensioners, came to £176 for both tensioners (£51 and £37) and a new belt (£23) and labour (£65), then plus the VAT, total of £211.

many thanks

Jul 26th, 2011, 21:29	#1
wg53 Member Last Online: Oct 13th, 2023 17:44 Join Date: Nov 2006 Location: maesteg	whirring esque noise hi, my 130k miles d5 has just developed a whirring type noise from the pulley side of the engine. Frequency changes with rpm, not road speed.at this mileage is it likely to be the oil or coolant pump, or anything else. thanks richard

Jul 26th, 2011, 21:33	#2
Clan Experienced Member Last Online: Today 00:12 Join Date: Jun 2007 Location: L/H side	It is most likely one of the black plasic wheels on the Aux belt driving the alternator ... __________________ My comments are only based on my opinions and vast experience .

Jul 26th, 2011, 22:28	#3
wg53 Member Last Online: Oct 13th, 2023 17:44 Join Date: Nov 2006 Location: maesteg	thank you, i am away from home on a course at the moment so i cant get it checked for a week or 2, i had it in my head that the worse thing would be bearings in the oil pump. Rich

Jul 27th, 2011, 08:01	#4
RAN60 Master Member Last Online: Jun 12th, 2024 15:00 Join Date: Jul 2009 Location: Wales	Do not let that noise get any worse!!!! I was lucky i checked mine when it was making the noise as when i was under the bonnet trying to track said "noise" low and behold the tensioner wheel decided to pop off, just in time for me to shut the engine off. If these pulleys fail while driving they CAN destroy an engine by damaging the timing belt housing and getting all tangled up. Get it seen to ASAP just as a precaution.

Aug 5th, 2011, 18:08	#6
wg53 Member Last Online: Oct 13th, 2023 17:44 Join Date: Nov 2006 Location: maesteg	Yes it was the tensioners, came to £176 for both tensioners (£51 and £37) and a new belt (£23) and labour (£65), then plus the VAT, total of £211. many thanks

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