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  #1  
Old 02-28-2019, 01:13 PM
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2009 35d Engine Noise

This engine noise on our 2009 35d w/83K miles has been getting louder. Given its age I decided to start by replacing wear items. So I’ve ordered new belts, idler and belt tensioner which should be here by next weekend. But I’m getting concerned that this might more serious e.g. alternator bearings, water pump, etc.



35d Engine Noise.wmv


Is this sound familiar?

Funf Dreisig
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File Type: wmv 35d Engine Noise.wmv (247.7 KB, 199 views)
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  #2  
Old 03-08-2019, 05:53 PM
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This AM I replaced the…



PartsDiagram.jpg


Ribbed V- belt — 11287803476
Mechanical Belt Tensioner — 1128779851
Deflection Pulley — 11287799859

The good news is that the ratchety sound is now gone
The bad news is we don’t have A/C because I couldn’t get the new A/C belt on

Before I started taking it apart, I should have used my inspection camera to check the fasteners on the crankshaft Vibration Balancer to verify that there was an easy way to rotate the crankshaft while installing the A/C belt.



VibrationDamper.jpg


So now I’m trying to find a tool to either:
1- install the A/C belt without rotating the crankshaft or
2 - turn the cranksaft while installing the stretch fit A/C belt.

Any suggestions are welcome — Funf Dreisig
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  #3  
Old 03-08-2019, 06:33 PM
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These are three special tools that claim to install the A/C belt without rotating the crankshaft of an M57 engine. They are listed in increasing cost from roughly $100—$230. Quite a spread for tools that look very similar. Has anyone had personal experience with any of these tools? If so, was it on a 35d?

Kommen — $ 104.99 https://www.kommentools.com/products/bmw-v-belt-installation-tools-110330

KTC — $ 139.99 https://shop.ktcautotools.com/collections/bmw-tools/products/bmw-v-belt-installation-tool-m47t2-m47tu-m57t2-m57tu

AST — $234.5 https://www.pelicanparts.com/More_Info/BMW124057.htm?pn=BMW-124057-M1220&gclid=EAIaIQobChMIlbqiisrz4AIVDNvACh2iWQ4gEA YYAiABEgLvs_D_BwE

Thanks in Advance — Funf Dreisig
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  #4  
Old 03-08-2019, 08:20 PM
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These 2 will get your ac belt back on.

https://www.tunemyeuro.com/m57-tool-...ing-the-crank/
https://www.tunemyeuro.com/lisle-593...l-for-bmw-m57/
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  #5  
Old 03-09-2019, 10:01 AM
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Quote:
Originally Posted by smassey321 View Post
Thanks for your suggestions.

I had found these in my internet search. But I was wary for a couple of reasons.
1 - The Lisle Stretch Belt Tool gets mixed reviews from those who have tried/used them. Did you have any trouble with it?

2 - The photos that accompany the “M57 Tool for rotating the crank” don’t show the “business end” of the tool. Did you use a 1/2” breaker bar, ratchet, ...? And how much clearance is required? IOW can this tool combo be used from below without pulling the fan housing?

Thanks again — Funf Dreisig
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  #6  
Old 03-15-2019, 03:07 PM
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The Kommen BMA1408 AC Belt Install tool arrived yesterday (1st photo ACBeltTool.jpg). I had hoped that I could use the tool from below. But there is simply not enough clearance because of the front sway bar. So I removed the fan housing again to make room to install the AC belt.

The tool fit into the 35d crankshaft damper nicely, after removing the outer ring (2nd photo ACBeltTool2.jpg). The installation was really simple. I just installed the AC belt onto the AC compressor and started the belt onto the damper over the AC Tool (photo 3 Install.jpg). I used a 1/2in ratchet to turn the tool until the friction caused the engine to turn, then continued turning until the belt was fully installed (photo 4 Installed.jpg).

Funf Driesig


p.s. This tool is the same as BMW's special tool 110 330
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  #7  
Old 03-16-2019, 10:50 AM
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Very helpful. Thanks for including pics!
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  #8  
Old 03-22-2019, 04:44 PM
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Does anyone know know if this tool will also work for N52 engine. I have 2 x5, one is a 35D and the other is a 3.0i. They are both due for new belts and tensioner.

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  #9  
Old 05-03-2019, 01:54 PM
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What persuaded BMW to due away with tensioner really boggled me.
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  #10  
Old 05-03-2019, 04:02 PM
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Quote:
Originally Posted by Dieselfan View Post
What persuaded BMW to due away with tensioner really boggled me.
Engineered for lifetime (of warranty).
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