How long are LR3 radiators good for?

Discussion in 'LR3' started by SoCal LR3, Apr 23, 2010.

  1. SoCal LR3

    SoCal LR3 Full Access Member

    Posts:
    57
    Likes Received:
    0
    Joined:
    Sep 10, 2009
    i've owned bmws for a long time. a while back bmw went from all metal radiators to plastic ones. the metal ones would last a long time; the plastic ones crap out around 100k miles.

    what's the story on LR3 radiators? last forever or change out on a preventative basis?
     
  2. kwlr3

    kwlr3 Full Access Member

    Posts:
    168
    Likes Received:
    0
    Joined:
    Dec 31, 2005
    Good question. I have been on this forum since Nov. 2005 ('05 HSE) and have never heard of a radiator going bad. But, every other vehicle (Maza, Isuzu, BMW) that I have owned with a plastic/aluminum unit has gone bad at about 100,000 miles or six years.

    A good way to see what parts are going bad on LR3's is to look at the catalogues of the aftermarket suppliers. If they are stocking it, someone is buying it. By that line of reasoning, you'll replace your thermostat before the radiator, and air compressor before the air springs and a transfer case or differential before the engine or transmission.

    Let's cross our fingers that no one has had to replace one and this is the end of this thread. (Ha!)
     
  3. Disco Mike

    Disco Mike Full Access Member

    Posts:
    1,949
    Likes Received:
    3
    Joined:
    Jun 20, 2009
    If you use distilled water and good coolant, maybe a bottle of Water Wetter or Purple Ice, you shouldn't have a blockage issues, then all you have to worry about is the heat fatigue on the plastic.
     
  4. hell pie

    hell pie Full Access Member

    Posts:
    203
    Likes Received:
    2
    Joined:
    Aug 23, 2008
    An old thread, but...

    I put in a new radiator last weekend at 160,000 miles. The radiator had developed some stress cracks where the upper radiator hose connects. Coolant had been leaking there for at least a few thousand miles. The plastic that the hoses attach to had gotten brittle way before that, to the point of crumbling. All that plastic in the engine bay constantly heating up and cooling down is not good. A couple of weeks ago I needed to change one of the turn indicator bulbs in the headlight assembly, which involves removing the grill. When I squeezed the plastic tabs to remove the grill, most of them snapped in half!
     
  5. Houm_WA

    Houm_WA Full Access Member

    Posts:
    3,392
    Likes Received:
    58
    Joined:
    Jan 6, 2006
    ....are the plastic hose-connects part of the radiator? Can they be replaced with brass ones?
     
  6. hell pie

    hell pie Full Access Member

    Posts:
    203
    Likes Received:
    2
    Joined:
    Aug 23, 2008
    Yes, the plastic hose connects are part of the radiator. I don't think they could reasonably be replaced with brass ones. They are located too close to the edge of the radiator. One fellow on the disco3 site did this to the expansion tank hose connect to provide additional support:

    [​IMG]

    Oddly enough, the transmission fluid hose connects on the radiator are made of metal.
     
  7. Houm_WA

    Houm_WA Full Access Member

    Posts:
    3,392
    Likes Received:
    58
    Joined:
    Jan 6, 2006
    So to your original question, I don't know how long the radiators last, but yours got 160,000 miles, and mine has 126,000 on it. So those are a few data points....
     
  8. SoCal66

    SoCal66 Member

    Posts:
    17
    Likes Received:
    5
    Joined:
    Jul 3, 2017
    Location:
    Orange County
    My radiator has 132,000 miles on it if that helps (2006 LR3).
     
  9. catman

    catman Full Access Member

    Posts:
    375
    Likes Received:
    42
    Joined:
    May 4, 2015
    Location:
    The Relay Shack, Parts Unknown USA
    I have 151,000 on my original 08 LR3 radiator, but my wife's 08 FFRR is on its third radiator and she has 122,000 miles....
     

Share This Page