e46 radiator upgrade

Discussion in 'General maintenance, upgrades and modifications' started by tonybolony, Sep 11, 2019.

  1. 11 Sep 2019 at 1:33 PM #1
    tonybolony

    tonybolony A mere Chipper

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    so my M3 likes to get hot when stood about , but is cool as when my foot is down on open road motorway etc, so i am thinking a new radiator Aluminium maybe may help me .

    so can anyone recomend radiator upgrade, that doesnt cost the earth , dont need anything amazing, just better than stock would be helpful

    thanks
     
  2. 11 Sep 2019 at 1:49 PM #2
    M3SFY

    M3SFY Wearing official underwear

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    Mishimoto and CSF are very expensive but fit properly ideal for serious track set ups

    If you are just road user then I'de replace with OEM as you know it will fit

    Other ebay specials are a lottery you get what you pay for
     
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  3. 11 Sep 2019 at 8:46 PM #3
    m3rosco

    m3rosco Achieved official socks

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    Does your auxiliary fan work? It’s not uncommon for them to pack up.
     
  4. 12 Sep 2019 at 10:28 AM #4
    M3SFY

    M3SFY Wearing official underwear

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    I removed my AUX fan and oem clutch fan on engine and fitted a Mishimoto fan

    This Works off aux fan switch and frees up front of radiator for better air flow

    All works fine in hot / stationary conditions never beyond half way on temp gauge
     
  5. 15 Sep 2019 at 6:09 PM #5
    Bluem3

    Bluem3 A mere Chipper

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    Check it’s not clogged up with debris. I’ve just changed my condenser and was shocked how much dirt was between radiator and condenser.
     
  6. 15 Sep 2019 at 8:50 PM #6
    klan8456

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    You don’t need anything more than the stock radiator unless you’re tracking it (hard). Something else is up with yours - stuck thermostat, clogged radiator, worn viscous coupling, failed aux fan etc. You should be able to idle all day in 45 degree traffic with no dramas - remember these cars when new were sold to Australia, the Middle East, California etc and can handle such conditions capably when in good condition.
     
  7. 15 Sep 2019 at 8:53 PM #7
    paul46

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    Nothing wrong with you radiator if it cools as soon as you move. Sounds like you aux fan or viscous is packed up
     

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