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-   -   To Change Radiator Or Not When Doing Cooling System Maintaince? (http://forum.e46fanatics.com/showthread.php?t=966704)

adaseb 01-20-2013 05:23 PM

To Change Radiator Or Not When Doing Cooling System Maintaince?
 
A lot of confusion regarding the radiator when it comes to doing the cooling system.

Some say that radiators are usually built for the life of the car while others say since they aren't too expensive and are made out of brittle plastic they should be replaced along with everything else.

I always done a coolant changed with BMW coolant and distilled water, so I am pretty sure my radiator passages aren't clogged.

Also in Canada a new radiator made by Nissens costs about $200. No idea how much an OEM radiator costs probably $350-400.

I think its better to keep the old OEM radiator than replace it with a non-OEM radiator.

Solidjake 01-20-2013 05:25 PM

OEM radiator is Behr.

What mileage you have? I personally wouldn't change it unless it is damaged by the fan blades or if the bottom is expanded so much it's bent.

dmax 01-20-2013 05:28 PM

My radiator failed at 185K miles or so. My Behr replacement has been fine for 60K miles.

daves325in2012 01-20-2013 05:38 PM

In to hear about longevity!

Sent from my DROIDX using Bimmer App

Zchild 01-20-2013 06:02 PM

My OEM radiator failed at 210,000 miles...

Stinger9 01-20-2013 06:13 PM

Depends on so many variables, including what you expect from your car in terms of reliability.
New Behr delivered in the USA for under $150US.

Some last long time. Others leak at gasket where plastic joins metal.

Yours probably not clogged depending upon duty cycles.
Do we know your mileage?

E46@46 01-20-2013 06:14 PM

1 Attachment(s)
Mine was still working at 155k miles. No leaks but very inefficient and was running hot (not enough to overheat). Changing it made a big difference for me even though it "did not fail". Here is what it looked like. I vote to change it.

Mouf 01-20-2013 06:15 PM

Mine started leaking at the tank seem around 110k. It was just a seap, but I changed it anyway.

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adaseb 01-20-2013 06:18 PM

Quote:

Originally Posted by Solidjake (Post 15079103)
OEM radiator is Behr.

What mileage you have? I personally wouldn't change it unless it is damaged by the fan blades or if the bottom is expanded so much it's bent.

Currently I have 115K miles

Zell 01-20-2013 06:20 PM

If leaking, yes. If not leaking, no.

When it starts leaking, it'll be a slow leak and won't be catastrophic, so you can wait on it. It's a crap shoot on how long the radiator will last. Some people still have them OEM, others needed a replacement. I had to replace mine at 100k due to a small leak.

adaseb 01-20-2013 06:20 PM

The cheapest price for the Behr w/ shipping to Canada was around $250

Solidjake 01-20-2013 06:20 PM

Eh, I guess if you have the cash go for it.

Here's an example of what you would pay

http://www.ebay.ca/itm/OEM-BEHR-BMW-...#ht_881wt_1271

MercForHire 01-20-2013 06:23 PM

change it when it leaks/fails

2003 325i 01-20-2013 06:28 PM

What Merc said.

Also, what is this cooling system maintenance/overhaul you're talking about? I change my fluid every 50000 kms but haven't found need to change any parts yet...

adaseb 01-20-2013 06:35 PM

Quote:

Originally Posted by 2003 325i (Post 15079305)
What Merc said.

Also, what is this cooling system maintenance/overhaul you're talking about? I change my fluid every 50000 kms but haven't found need to change any parts yet...

Basically everything.

Water pump, Thermostat, Rad hoses, ET, ET Bracket, Auto tranny thermostat, ET Cap, etc.

Don't want the car to break down and have to pay extra to get it towed and pay premium prices at the dealership because I can't wait for parts.

Solidjake 01-20-2013 06:37 PM

Like I said, you have the cash do it and it will be good for another 100k miles.

Zell 01-20-2013 06:43 PM

What's the point of changing the ET bracket? Doesn't it just sit on the radiator, and that's it? Or does it actually connect to the radiator for autos? I don't remember seeing a connection on my manual.

2003 325i 01-20-2013 06:44 PM

Quote:

Originally Posted by adaseb (Post 15079323)
Basically everything.

Water pump, Thermostat, Rad hoses, ET, ET Bracket, Auto tranny thermostat, ET Cap, etc.

Don't want the car to break down and have to pay extra to get it towed and pay premium prices at the dealership because I can't wait for parts.

Hmmm, how often do you have to do this?

Stinger9 01-20-2013 06:50 PM

Quote:

Originally Posted by adaseb (Post 15079280)
The cheapest price for the Behr w/ shipping to Canada was around $250

Can't get somebody here to deliver up to you for cheaper?

www.furiousmethod.com

helalo 01-20-2013 06:53 PM

mine failed at 95k ( leakage) but that was on my Z4, dont E46 and e85 z4 share the same cooling system?


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