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Old 06-07-2011, 11:02 AM   #1
kimodo
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cooling system overhaul, replace radiator as well?

I'm at 100,000 and getting ready to do cooling system overhaul. From your experiences should I replace the radiator since i'm going to have everything apart? I don't want to replace the radiator, if it is a quality part.. that isn't susceptible to premature failure. Replacing radiator @100k cheap insurance or pissing away $, Advice?
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Old 06-07-2011, 11:06 AM   #2
Solidjake
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No, radiator is not necessary unless it's leaking.
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Old 06-07-2011, 11:57 AM   #3
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I replaced my at 100K since I had everything torn apart. It's a simple job and good insurance for $100. Old radiator can start leaking at anytime.
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Old 06-07-2011, 12:29 PM   #4
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new oem radiator is 100 bucks?
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Old 06-07-2011, 12:34 PM   #5
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$140 at autohausaz.com
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Old 06-07-2011, 02:28 PM   #6
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I replaced my radiator at 116K when I did my cooling system overhaul. I don't recall the cost off the top of my head. But I primarily did it for peace of mind. Plus I was still spending just about the same amount in parts it would have cost me to just have the thermostat replaced at the dealer. Good luck.
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Old 06-07-2011, 02:38 PM   #7
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No, radiator is not necessary unless it's leaking.
Quote:
Originally Posted by rollingstone View Post
I replaced my at 100K since I had everything torn apart. It's a simple job and good insurance for $100. Old radiator can start leaking at anytime.
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Originally Posted by Chris C View Post
I replaced my radiator at 116K when I did my cooling system overhaul. I don't recall the cost off the top of my head. But I primarily did it for peace of mind. Plus I was still spending just about the same amount in parts it would have cost me to just have the thermostat replaced at the dealer. Good luck.
+1 bought for 150 behr not needed but good peace of mind
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Old 06-07-2011, 02:40 PM   #8
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Mine started leaking at something like 190K miles and I replaced it maybe 2 months later after I decided it wasn't healing itself. It failed slowly on me...a leak between plastic and aluminum where they're crimped together. Not sure they don't explode, but don't recall hearing of one do that...that's what the ET is for!

YMMV, of course, but I did get ample warning and just needed to add maybe a few ounces/week until the rate of loss increased and I replaced it...as Jake said, for $140.
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Old 06-07-2011, 02:40 PM   #9
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I kept the old one.
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Old 06-07-2011, 03:11 PM   #10
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I wouldn't replace it as a matter of maintenance. Maybe at 200k, but not 100k.
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Old 06-07-2011, 04:05 PM   #11
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I replaced my radiator at 116K when I did my cooling system overhaul. I don't recall the cost off the top of my head. But I primarily did it for peace of mind. Plus I was still spending just about the same amount in parts it would have cost me to just have the thermostat replaced at the dealer. Good luck.
Yeah no kidding. Thermostat housing + antifreeze = 500+ at dealer! (100 ish for part and 400+ for labor)

For all those recommending not to do radiator, does that mean radiator is not the weak link and overhaul refers mainly to water pump?

If so, why even replace pipes? Doesnt it make sense to just replace water pump and deal with stuff as it breaks? Just wondering...

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Old 06-07-2011, 04:09 PM   #12
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Yeah no kidding. Thermostat housing + antifreeze = 500+ at dealer!

For all those recommending not to do radiator, does that mean radiator is not the weak link and overhaul refers mainly to water pump?

If so, why even replace pipes? Doesnt it make sense to just replace water pump and deal with stuff as it breaks? Just wondering...
Well think about it, the radiator is pretty much all metal so it can withstand the heat and coolant running through it. My radiator hoses at 90k all had bad bubbling on the inside of them. So it would make sense to change those rubber/plastic parts. Water pump has to be done because bearings can fail at any point and the expansion tank is known to blow up at any given second.
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Old 06-07-2011, 04:23 PM   #13
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OP,
Overall, the radiator unit itself holds up pretty well under normal daily driving, even at 100K.
And, Especially in San Diego's beach weather.

Unless there is some damage ie: rocks or known leaks... you would be wasting money. Also, the time it takes to get to the radiator later on (especially after you done a cooling system refresh) will be a lot quicker (due to said experience) So, I would let it be. Our radiators can last up to 180+K, like Dmax stated.

Mine's currently at 117K in Texas Heat.

Just make sure you replace Everything else relating to the cooling system.

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Old 06-07-2011, 04:44 PM   #14
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Well think about it, the radiator is pretty much all metal so it can withstand the heat and coolant running through it. My radiator hoses at 90k all had bad bubbling on the inside of them. So it would make sense to change those rubber/plastic parts. Water pump has to be done because bearings can fail at any point and the expansion tank is known to blow up at any given second.
Thanks, well said and good to know.
(I guess lay off the radiator on mine for a while)
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