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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 01-12-2013, 03:58 PM   #901
Stinger9
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Originally Posted by caleb6 View Post
Cool, thanks!

I'm looking for a good side by side comparison picture of hydraulic versus mechanical pulley set up - anyone have a link to one??

Also, can the A/C be one, and the main belt be another type - one hydraulic and one mechanical?

Thanks for the info.
No such thing as hydraulic for A/C belt.

Look at the area and you'll see the long snout sticking out if you have hydraulic.
And if you have a hydraulic, I'd consider replacing the whole unit. The pistons do wear out.
I noticed mine was bobbling up and down when idling, so I replaced it.
Runs rock steady once again.


Where the long bolt sticks out from here:

Last edited by Stinger9; 05-08-2014 at 05:40 PM.
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Old 01-12-2013, 04:02 PM   #902
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No such thing as hydraulic A/C

Look at the area and you'll see the long snout sticking out if you have hydraulic.
Where the long bolt sticks out from here:
Thanks. and I found this link for those that follow http://forum.e46fanatics.com/showthread.php?t=790318
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Old 01-12-2013, 04:10 PM   #903
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[QUOTE=Stinger9;15055209]No such thing as hydraulic for A/C belt.


This is the confusing part, as Mango lists on his list an option for hydraulic or mechanical for A/C but not for the main belt.

Searching his part number on realoem for belt tensioner (11281748131) results in a hydraulic tensioner pulley. He then lists the alternator deflector part number, and then two for the A/C - one hydro and one mech.

its confusing - or am i missing something??
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Old 01-12-2013, 04:34 PM   #904
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It's easy.
There is only a mech for the A/C

There is a mech tensioner for the main belt that was replaced early on with hydraulic. Hard to find a new mechanical any longer.
If you replace mech with hydraulic, you need an adaptor kit.

Clear?
Use realoem to research it yourself. Look at the diagrams.

Last edited by Stinger9; 01-12-2013 at 04:35 PM.
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Old 01-12-2013, 04:50 PM   #905
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OK, so the Dayco 89133 for the A/C (which is mechanical always) and then the hydraulic for my main belt tension and the mechanical idler puller. I think I got it. Thanks again.

Last edited by caleb6; 01-14-2013 at 10:34 AM.
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Old 01-14-2013, 10:38 AM   #906
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Does the coolant temp sensor (p/n 13621433077) that goes into the lower radiator hose come with a new hose, or do you have to purchase that separately too?
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Old 01-14-2013, 10:47 AM   #907
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plug your part numbers into www.rmeuropean.com and you'll get pictures of exactly what the part numbers include.
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Old 01-14-2013, 02:25 PM   #908
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Does the coolant temp sensor (p/n 13621433077) that goes into the lower radiator hose come with a new hose, or do you have to purchase that separately too?
Separately.
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Old 01-14-2013, 04:17 PM   #909
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Separately.
Thanks!
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Old 01-14-2013, 09:57 PM   #910
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Is this a good kit if i want to overhaul my cooling system completely? http://www.ecstuning.com/BMW-E46-328...Kit/ES2497307/ And will this kit be cheaper than ordering separate parts from Realoem? I was also thinking about ordering a fan clutch and a new fan blade too!!!
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Old 01-14-2013, 10:24 PM   #911
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Looks like a decent kit 'cause it says all oem parts.

Can't order pars from realoem. Give it a try.

Shop part numbers for price using: www.furiousmethod.com
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Old 01-15-2013, 05:07 AM   #912
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Is this a good kit if i want to overhaul my cooling system completely? http://www.ecstuning.com/BMW-E46-328...Kit/ES2497307/ And will this kit be cheaper than ordering separate parts from Realoem? I was also thinking about ordering a fan clutch and a new fan blade too!!!

Yeah, its a good kit. You are overpaying by at least $400 though. If you shop RMEuropean and BMA Auto Parts you will find the exact products for half the price if you put them together yourself.

I just put together a kit similar to this for my 330XI and the total cost was $550. It takes time to research part numbers, make sure you have everything included, etc, but $400 is $400 if ya know what I mean.

Good luck!

Last edited by caleb6; 01-15-2013 at 05:08 AM.
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Old 01-15-2013, 04:07 PM   #913
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And WOW is BMA fast! Man I ordered my stuff last night at 6PM and it was here at home when I returned from work TODAY! Crazy fast. Still waiting on RMEuropean and BAVAUTO stuff.
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Old 01-15-2013, 08:59 PM   #914
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And WOW is BMA fast! Man I ordered my stuff last night at 6PM and it was here at home when I returned from work TODAY! Crazy fast. Still waiting on RMEuropean and BAVAUTO stuff.
Bavauto will price match anyone who sells the same part.
Something to consider if you're making a separate order because something was cheaper somewhere else.

They always price match my local BMW dealerships online parts prices which makes Genuine parts VERY affordable, and I always feel better using genuine parts.
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Old 01-16-2013, 04:13 PM   #915
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Well I got everything in the mail now, including a new radiator. I know my thermostat is bad as I got the CEL and the car is running cold. I have to admit, I am hesitant now to start replacing everything else as I have ZERO leaks or any other problems with the coolant system or belts or pulleys.

I like to stock up on the parts I may need and replace them when they begin to go. Convince me please why I should do this proactively? I need a nudge in that direction. I mean I want to do it, but I'm a little hesitant as I'm scared that I'll create problems by going in and replacing stuff that ain't broke. I bought this particular car with 107,000 miles (it has 120k now) and came with NO maintenance history - although I know the belts at least were replaced at some point as they are CARQUEST stamped.

Help.
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Old 01-16-2013, 04:17 PM   #916
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Well I got everything in the mail now, including a new radiator. I know my thermostat is bad as I got the CEL and the car is running cold. I have to admit, I am hesitant now to start replacing everything else as I have ZERO leaks or any other problems with the coolant system or belts or pulleys.

I like to stock up on the parts I may need and replace them when they begin to go. Convince me please why I should do this proactively? I need a nudge in that direction. I mean I want to do it, but I'm a little hesitant as I'm scared that I'll create problems by going in and replacing stuff that ain't broke. I bought this particular car with 107,000 miles (it has 120k now) and came with NO maintenance history - although I know the belts at least were replaced at some point as they are CARQUEST stamped.

Help.
Failures don't always come with warnings. If you have no prior history for the car, truth is you don't know how many miles or how much time is on the parts. Given that your engine can be destroyed with an overheat, you'll have to decide whether or not it is worth it to spend $500 now or possibly spend $3,000 + 1 to 2 weeks of down time later.
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Old 01-16-2013, 04:36 PM   #917
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After doing the project last week, I would not recommend that you replace the thermostat without doing the hoses also. How old is the expansion tank, water pump and radiator? The connections on the radiator are plastic, so you need to be gentle when you replace the hoses. You have 120K on a 2005 compared to 118K on my 2001, I see that as more wear in a shorter period of time and think that a overhaul is in order. The cooling system is nothing to tempt to fail, it will make you crazy. Hell, I checked the coolant level every time I went out to drive it for the eight days since doing my refresh. But when you're finished, you shouldn't need to mess with it for 3-4 years. Just move on to other projects.
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Old 01-16-2013, 04:41 PM   #918
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Yeah I hear ya. and the fact that BMW had ZERO history on the car (not even the free maint was done at a BMW shop) and that the PO put on CARQUEST belts - what other shoddy stuff was done - or NOT done in this case. I'm getting ready to crack a Sam Adams and get this thing going...tonight! Thanks for the voice of reason guys!
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Old 01-16-2013, 05:23 PM   #919
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But when you're finished, you shouldn't need to mess with it for 3-4 years. Just move on to other projects.
With parts named

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Old 01-16-2013, 05:41 PM   #920
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Yeah I hear ya. and the fact that BMW had ZERO history on the car (not even the free maint was done at a BMW shop) and that the PO put on CARQUEST belts - what other shoddy stuff was done - or NOT done in this case. I'm getting ready to crack a Sam Adams and get this thing going...tonight! Thanks for the voice of reason guys!
No problem! Having a solid car with parts you installed yourself is always reassuring. I never doubt my car when I open the door and turn the key
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