Tensioner belt and pulley system - E90

Aaron_BMW · May 26, 2014

Dear all,

Just for sharing this belt which is rather important.

The function of this belt is to to allow the engine to drive the air-con compressor and the alternator which generates electrical power for our car and charges the battery.

Should this belt breaks while driving, the engine might over heat and we might experience no power nor air-con.

I heard recommendation to change this every 50KM mileage but some of us will change upon the visible signs of worn off.

View attachment 61439

View attachment 61440

I got my parts from the Kakit Bukit stockies as usual and bring to the any workshop to fix.

Cheers!

Jackiejb · May 26, 2014

Re: Tensioner belt and pulley system - E90

It cost less than 20 for this belt... wise to change instead for physical wear and tear to be visible..

Vansoh · May 26, 2014

Re: Tensioner belt and pulley system - E90

Jackiejb;1085573 said:
It cost less than 20 for this belt... wise to change instead for physical wear and tear to be visible..

the belt itself is cheap. but since its been change, it would be prudent to also change out also the pulley and tensioner.
labour cost would not go up too much.
but the pulley & tensioner cost abit more.
total should be around 200++ to 300+ for supply & install the 3 item you see in Aaron's picture.

Aaron_BMW · May 27, 2014

Tensioner belt and pulley system - E90

Vansoh;1085611 said:
the belt itself is cheap. but since its been change, it would be prudent to also change out also the pulley and tensioner.
labour cost would not go up too much.
but the pulley & tensioner cost abit more.
total should be around 200++ to 300+ for supply & install the 3 item you see in Aaron's picture.

Ya... Items are cheap.
Install also not that ex
I think can be done around $100 ++

Vansoh · May 27, 2014

Re: Tensioner belt and pulley system - E90

Argh!! stop it. your making my heart ache. :biggun:

tensional bearing / idle bearing / fan belt are the names of the parts.

Aaron_BMW;1085658 said:
Ya... Items are cheap.
Install also not that ex
I think can be done around $100 ++

kenntona · May 27, 2014

Re: Tensioner belt and pulley system - E90

These are items checked by a good workshop when you do your regular servicing, assuming you do your servicing regularly in the first place.

Vansoh · May 27, 2014

Re: Tensioner belt and pulley system - E90

kenntona;1085727 said:
These are items checked by a good workshop when you do your regular servicing, assuming you do your servicing regularly in the first place.

I agree. But most workshop would proberly say that it was checked then and show you the "checklist" done.
Followed by saying these belt thing sometimes just snap as and when they like. Which does make some sense to me.
No problem is too big as long as it can be solved the first time around.

Aaron_BMW · May 27, 2014

Re: Tensioner belt and pulley system - E90

kenntona;1085727 said:
These are items checked by a good workshop when you do your regular servicing, assuming you do your servicing regularly in the first place.

Yes,

this is why I am buying the belt and changing it after the mechanic told me it's worn off.

Workshop should check and we should also do our own checks and note our maintenance too.

My post is good reminder for our forum members to take note of the condition of their own car's belt vs the risk of belt breaking up.

kenntona · May 27, 2014

Re: Tensioner belt and pulley system - E90

Vansoh said:
I agree. But most workshop would proberly say that it was checked then and show you the "checklist" done.
Followed by saying these belt thing sometimes just snap as and when they like. Which does make some sense to me.
No problem is too big as long as it can be solved the first time around.

To be honest, I truly wonder what kind of workshops have you guys been going to?

For the last 12 years in this forum, I have been treated well by the majority of the panel of workshops here - from BVO to R2D. All professionals, no hanky-panky and no bulls.

Nowadays I still go to R2D and Rod is still the same.

davidtch · May 27, 2014

Re: Tensioner belt and pulley system - E90

The last time my belt snapped is water pump bearing seize.

Vansoh · May 27, 2014

Re: Tensioner belt and pulley system - E90

kenntona;1085735 said:
To be honest, I truly wonder what kind of workshops have you guys been going to?

For the last 12 years in this forum, I have been treated well by the majority of the panel of workshops here - from BVO to R2D. All professionals, no hanky-panky and no bulls.

Nowadays I still go to R2D and Rod is still the same.

Please dont take this the wrong way. Im not complaining about workshop or anything.
Just that i acknowledge that good, if not most, ws will check for such wear and tear parts. (Its good for them to be able to spot such potential failure and tell the owner, who will most likely choose to change it there and there which translate to additional sale for the workshop), but at the same time, these belt do snap whenever they feel like it.

Cruzer · Oct 2, 2014

Re: Tensioner belt and pulley system - E90

Hi Aaron,

How are you? Can I check with you the shop you bought the whole set above and how much. Much appreciated!

Aaron_BMW · Oct 3, 2014

Re: Tensioner belt and pulley system - E90

Cruzer;1101636 said:
Hi Aaron,

How are you? Can I check with you the shop you bought the whole set above and how much. Much appreciated!

Forgot the price,
Can u please call up the stockies to check?

Cruzer · Oct 3, 2014

Re: Tensioner belt and pulley system - E90

Thank you! I got it fixed! Cheers

diesel78sg · Sep 25, 2015

Re: Tensioner belt and pulley system - E90

What is the average mileage to change the pulleys and belt?
Mine millege is abt 128K km.
Belt seems ok, not sure abt condition of pulleys though.

Aaron_BMW;1085734 said:
Yes,

this is why I am buying the belt and changing it after the mechanic told me it's worn off.

Workshop should check and we should also do our own checks and note our maintenance too.

My post is good reminder for our forum members to take note of the condition of their own car's belt vs the risk of belt breaking up.

Eng Soon Auto · Sep 25, 2015

Re: Tensioner belt and pulley system - E90

Hi Average replacement of this parts are 80K km, do drop us a PM if you need a quote for parts !

diesel78sg · Sep 29, 2015

Re: Tensioner belt and pulley system - E90

Hi Eng Soon,

Can you give me a quote for the parts needed?
Any mechanics to recommend?
Thanks.

Eng Soon Auto;1126821 said:
Hi Average replacement of this parts are 80K km, do drop us a PM if you need a quote for parts !

Eng Soon Auto · Sep 29, 2015

Re: Tensioner belt and pulley system - E90

diesel78sg;1126994 said:
Hi Eng Soon,

Can you give me a quote for the parts needed?
Any mechanics to recommend?
Thanks.

List of common parts normally changed sent ! Thanks

Ahbengdriver · Sep 30, 2015

Re: Tensioner belt and pulley system - E90

Eng Soon Auto;1126821 said:
Hi Average replacement of this parts are 80K km, do drop us a PM if you need a quote for parts !

These are E90 parts. Are there similar parts on an E92 Coupe 335i that should be replaced?

lylcnn · Oct 3, 2016

Eng Soon Auto said:
Re: Tensioner belt and pulley system - E90

List of common parts normally changed sent ! Thanks

hi Eng Soon, pls PM the list of common parts normally changed...thanks...

Tensioner belt and pulley system - E90

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