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  1. #1
    Rob
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    Changing the WATER PUMP ? Radiator , Hoses ?

    Im ready to change my water pump , ....just to be safe

    What else should be changed ? Belts , Hoses ?

    Will this cost me $500 - $800 at the BMW DEALER ?

    Anyone still running with the orginial water pump , radiator, etc ?

    My car is a 1998 M3 SEDAN

    I guess they changed the water pumps after 96/97 ?

    i dont want to blow my engine ,

    My car has 105k , do I still have some life on my water pump , or is it a ticking time bomb ? :)

    thanks for info , advice


  2. #2
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    Ka-boom...j/p

    Time to change:

    Waterpump - Original BMW part, not Geba crap
    Thermostat
    Thermostat housing
    Radiator
    Radiator hoses

    While your in there type of things:

    main drive belt and A/C belt
    two tensioner and one idler pulley
    radiator expansion tank
    fan
    fan clutch


    That would be my list at your miles. Especially if they are original to the car.

    -WIZ

  3. #3
    TLK
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    You are on borrowed time

    A lot of these parts are not too robust. The water pump, radiator and hoses are dangerous to run that long. The drive belts also don't last very long in my experience. I've changed these due to premature wear several times on cars with less mileage than yours, in my experience, you are on borrowed time.

    The rule of thumb is 60K for major cooling system service, including new pump and new radiator. Some will argue to run them to 100K, but there are plenty of failures earlier than that and you risk being stranded unexpectedly when it blows.

  4. #4
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    pretty easy do it yourself, but yeah do it!!!!soon

    _______
    GC RTAB shims, RSMs, T/S Coilover with Koni DA f/SA R & 450#f/550#r Eibach ERS
    Eyeball Arm CA mounts
    Sunbelt CAMS w chip for 24# injectors, Euro MAF, Conforti/ITG CAI
    96+ exhaust manifolds
    Euro fLoAtErS, Ferodo DS2500
    accessory UDPs
    M roadster lever
    All done in my garage

    corkscrew:Laguna Seca

  5. #5
    HSV-DAN
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    Radiator for sure,

    They are not too expensive aftermarket or even dealer, but the dealer install $$$ will hit hard. Look for an independant if you don't want to do this yourself.

    Most of us have had a radiator neck or water pump let loose on the road or have direct knowlege of one. (both on a 525i for me at 80K mi.)

  6. #6
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    I got lucky: 325i rad blew one block from home

    Right practically at 100K. I shudder to think of breaking down a couple hundred miles from home with the kids and all. My luck was unbelieveable. I parked at the curb, and we walked home. When it had cooled off, my wife and I just pushed it down the street and into our assigned parking space where we lived at the time, where I would do the cooling system overhaul.
    TLK
    '93 325i sedan
    '98 M3 sedan

  7. #7
    DanC-1996M3
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    here's a list of everything.....


    Based on what's been mentioned. Like everyone said, it's all pretty easy do-it-yourself stuff, so if you have basic tools, a free saturday, a place to do the work, and some patience, this should be easy for you. Having a bentley service manual and/or a mechanically gifted friend around never hurts either. Parts and pricing as listed on Turner Motorsport's site, for reference.

    These parts/items would be on my "Definitely do!" list.


    M50/M52 E34, E36 & E39 6 Cylinder Water Pump (Original BMW)
    part# 11517527799 (11 51 7 527 799)
    $78.31


    Radiator - E36 6 cylinder 325/328/323/M3
    part# 17111469179 (17 11 1 469 179)
    $185.00


    E36 Upper Radiator Hose - 6 Cyl, 325/328/323/M3
    part# 11531708499 (11 53 1 708 499)
    $19.95


    E36 Lower Radiator Hose - 6 Cyl, 325/328/323/M3
    part# 11531726344 (11 53 1 726 344)
    $29.95


    Serpentine Drive Belt - Most M50 M52 S50 & S52 6 Cylinder
    part# 11281469266 (11 28 1 469 266)
    $24.50


    Air Conditioning / AC Belt - M52/S52 6 Cylinder
    part# 11281437873 (11 28 1 437 873)
    $14.95


    E34 525i 91-95 (M50 engine), E36 325i/328i/M3 Replacement Thermostat
    part# 11537511580 (11 53 7 511 580)
    $23.25


    M50/M52 Aluminum Thermostat Housing
    part# 11531722531 (11 53 1 722 531)
    $24.95


    BMW Antifreeze Coolant, 1 Gallon Jug
    part# 82141467704 (82 14 1 467 704)
    $19.25


    These are the more optional items, but if you're in there they are easy to renew, and you'll have some peace of mind and potentially save yourself a headache down the road.....


    Fan Clutch - Many 6 Cylinders
    part# 11521719269 (11 52 1 719 269)
    $97.95


    Engine Fan - 11 Blades, 420mm - Many 6 Cylinders
    part# 11521712058 (11 52 1 712 058)
    $44.95


    Coolant Expansion Tank - E36/E39/Z3 6 cylinder 1992-1998
    part# 17111723520 (17 11 1 723 520)
    $64.95


    E36, E46, E39 6-cyl belt tensioner (shock)
    part# 11281717188 (11 28 1 717 188)
    $75.50

    no image
    Idler Pulley for Water Pump/Alternator Belt
    part# 11281748130 (11 28 1 748 130)
    $38.50


  8. #8
    ROB
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    Re:THANKS ! ... here's a list of everything.....

    THANKS for all the help & info , I will start with the Water Pump & Radiator + hoses , cheers - Rob

  9. #9
    M3 Matt
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    Re: Changing the WATER PUMP ? Radiator , Hoses ?

    I know I'm on "borrowed time" but it's been so long now that I have to know how long my radiator/water pump will last! My t-stat was changed two years ago, everything else is at 11 years and 193,000 miles..all original. I was hearing "your crazy" "tick tick tick" "any minute now" Back when Clinton was in office.

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