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    BMW E30 Radiators & Cooling System Overhaul Kits

    We sell only OEM Behr, Original BMW, or approved aftermarket upgrade radiators for your BMW. It seems BMW took some shortcuts when it came to radiator design and used too many weak materials like plastic for critical connections. The core and sizing of the radiators are generally sufficient for the intended application but problems can occur at hose connections, upper or lower necks, and plastic end tanks. The radiators we sell are all OEM designs to keep the quality high. In some cases the OEM has made design improvements to prevent past issues. There are a number of non-OEM replacement radiators that use even cheaper materials and poor workmanship which only leads to more problems. On some models we offer OEM alternatives that perform as upgrades to the original designs and we also offer full race all-aluminum radiator upgrades that solve all of the issues with plastic radiators.
    You're currently viewing parts for your (E30) 3-series 1984-1991. Reset your chassis
    For accurate results, specify your year and model below.
    This Cooling Kit for the 1987 E30 325i covers all of the major replacement parts for the original cooling system. We start with an OEM Behr radiator and then you choose the additional parts you need to replace next. Add hoses, sensors, water pumps, thermostats, gaskets, hose clamps, and more. We also sell the correct Original BMW antifreeze to finish off the job.

    Of the systems in your E30, the cooling system is not where you want to let slide or skip maintenance. Almost nothing will ruin your day more than an overheating engine and it's usually at the absolute worse time. Maintaining the cooling system is easy and you can do most or all of the work yourself with ordinary tools. There's no reason not to address a leaky or out of date cooling system right away.

    Top Turner Tip!
    On the 1987 325i, pay particular attention to the alternator fan blades and the clearance to the lower radiator hose. As the engine shifts on worn motor mounts, and the alternator twists on worn bushings, the cooling blades can slice right through the hose. Replace the alternator bushings and use our motor mount reinforcements. Or convert the whole system to the 1988+ cooling system which moves the lower hose to the other side of the radiator.

    To save you time and money, we recommend replacing major components with related parts.
    Radiator with upper and lower hoses to thermostat.
    Thermostat with o-ring and housing gasket.
    Water pump with timing belt and tensioner.
    Associated hoses with each of the above.
    V-belts with any of the above.

    Use the options below to build your package.

    This cooling package fits the following BMWs:
    1987 E30 BMW 325i 325ic 325is
    Part #: E30-325i-87-COOLING-PACKAGE
    Price: $199.95 (USD) 
    This cooling package for the E30 M3 consists of all of the major components on the S14's cooling system. There are no major weak points to the E30's cooling system, unless you count skipped maintenance. The entire system is serviceable in individual components so you don't need to buy a complete package of parts. Many of the indivdual parts are on our site but we have setup this package to cover all or most of what you would need to perform a major overhaul. This overhaul package consists of an Genuine BMW radiator and then you build the package from there. Add hoses, sensors, water pumps, thermostats, gaskets, hose clamps, and more. We also sell the Original BMW antifreeze to finish off the job.

    Any problems with the cooling system are likely electrical. Sensors become corroded and fail over time which will send the incorrect signal to the corresponding unit, including the engine computer. Diagnosis of electrical type problems is easy and repair with the OEM Bosch or OE BMW sensors is not too expensive for a car like this. Electrical connections, particularly solder joints, can also become brittle and fail. These are not helped by the intense vibrations of the S14.

    Turner's Tips For A Healthy S14:
    E30 M3s always seem to have cooling problems at the most inconvenient time. If the temp gauge starts rising in the summer months first check and make sure your auxiliary cooling fan is working… if it's not – it's most likely the switch or the wiring going to the switch. Also – remember that the E30 instrument conductor plate can make the gauge read whacky – try tapping the gauge if it seems like it's acting up. When it's time to do a water pump (which weeps through a hole on the bottom before it goes completely) take a good look at the radiator too – its not expensive and you have to remove it to install the pump anyway.

    Use the options below to build your package.

    This cooling package fits the following BMWs:
    1988-1991 E30 BMW M3
    Part #: E30-M3-COOLING-PACKAGE
    Price: $338.95 (USD) 
    This Cooling Kit for the 1988-1992 E30 325i covers all of the major replacement parts for the original cooling system. We start with an OEM Behr radiator and then you choose the additional parts you need to replace next. Add hoses, sensors, water pumps, thermostats, gaskets, hose clamps, and more. We also sell the correct Original BMW antifreeze to finish off the job.

    Of the systems in your E30, the cooling system is not where you want to let slide or skip maintenance. Almost nothing will ruin your day more than an overheating engine and it's usually at the absolute worse time. Maintaining the cooling system is easy and you can do most or all of the work yourself with ordinary tools. There's no reason not to address a leaky or out of date cooling system right away.

    To save you time and money, we recommend replacing major components with related parts.
    Radiator with upper and lower hoses to thermostat.
    Thermostat with o-ring and housing gasket.
    Water pump with timing belt and tensioner.
    Associated hoses with each of the above.
    V-belts with any of the above.

    Use the options below to build your package.

    This cooling package fits the following BMWs:
    1988-1992 E30 BMW 325i 325ic 325is
    Part #: E30-325i-88-COOLING-PACKAGE
    Price: $199.95 (USD) 
    This is a new Genuine BMW brand radiator for all 1988 and newer E30 325i, 325is, 325ix, 325e. If your E30's radiator is failed or failing, be sure to get the highest quality Genuine BMW replacement. Alternate part number 1711468079

    This BEHR Radiator fits the following BMWs::
    1988-1991 E30 325i, 325is, 325ix
    1988-1992 E30 325i convertible (325ic)
    1988-1988 E30 325e & 325es

    Automatic Transmission only
    Part #: 17112241913
    Price: $404.95 (USD) 
    Quantity:   
    This radiator fan shroud mounts to the radiator on the e30 M3 with S14 engine and helps to direct airflow through the radiator. It's also the mounting point for the coolant reservoir.

    This item fits the following BMWs:
    1987-1991 E30 BMW M3
    Part #: 17112225348
    Price: $19.95 (USD) 
    Quantity:   
    E30 318i, is, (M42), E36 318i, ti, Z3 1.9 Radiator - original OEM BEHR. Alternate BMW part number 17111728907

    This item fits the following BMWs:
    1990-1991 E30 BMW 318i 318is 318ic
    1992-1998 E36 BMW 318i 318is 318ti 318ic
    1997-2002 Z3 BMW Z3 1.9
    Part #: 17111728907
    Price: $139.95 (USD) 
    Quantity:   
    This is a new OEM Behr brand radiator for all 1985-1987 E30 325's with the "e" (eta) motor, including 325e and 325es, as well as the Euro E30 323i 6 cylinder. Fits all 1985, 1986 and 1987 325e & 325es. If your E30's radiator is failed or failing, be sure to get the highest quality OEM replacement available, which is this one -- Manufactured by Behr, an OEM Supplier to BMW.

    This BEHR Radiator fits the following BMWs::
    1985-1987 E30 325e & 325es
    1983-1987 E30 Euro 323i 6 cylinder

    Please choose your transmission (manual or automatic) below. The manual transmission version is BMW part# 17-11-1-468-068 and the automatic transmission version is BMW part# 17-11-1-468-069
    Part #: 17111468068-069
    Price: $199.95 (USD) 
    This is a new OEM Behr brand radiator for all 1986 and 1987 E30 325i and 325is. Manufactured Behr, an OEM Supplier. If your E30's radiator is failed or failing, be sure to get the highest quality OEM replacement available, which is this one -- Manufactured by Behr, an OEM Supplier to BMW.

    This BEHR Radiator fits the following BMWs::
    1986-1987 E30 325i & 325is

    Please choose your transmission (manual or automatic) below. The manual transmission version is BMW part# 17111468074 and the automatic transmission version is BMW part# 17111468075.
    Part #: 17111468074-075
    Price: $199.95 (USD) 
    This is a new OEM Behr brand radiator for all 1988 and newer E30 325i, 325is, 325ix, 325e. If your E30's radiator is failed or failing, be sure to get the highest quality OEM replacement available, which is this one -- Manufactured Behr, and OEM Supplier to BMW. Alternate part number 17111468078.

    This BEHR Radiator fits the following BMWs::
    1988-1991 E30 325i, 325is, 325ix
    1988-1992 E30 325i convertible (325ic)
    1988-1988 E30 325e & 325es

    Part #: 17112241912
    Price: $199.95 (USD) 
    Quantity:   
    This is a new stock E30 M3 Radiator. We offer both Genuine BMW or Nissens brand radaitors. The Genuine BMW radiator is the highest quality radiator available. The Nissens is a high quality aftermarket radatior.

    This item fits the following BMWs:
    1988-1991 E30 BMW M3
    Part #: 17112225592
    Price: $229.95 (USD) 
    Upgrade the cooling capacity of your E36 323i, 325i, 328i, M3 with the MZ3 S54 radiator. This thicker core radiator - 42mm core vs the stock 34mm core - is an economical way to increase the cooling capacity from the stock unit in your M20, M50, S50 or S52 equipped 3 series. The thicker core radiator has greater surface area for air to flow over, giving additional cooling capacity over the original radiator. This makes it an excellent choice for track cars that need a little extra cooling capacity. Or for supercharged engines where underhood temps can lead to heat soak in the engine compartment. This radiator also has hangers on the bottom that can fit a Euro oil cooler (cooler brackets still required).

    This item fits the following BMWs:
    1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3 with Manual Transmission
    2001-2002 Z3 BMW Z3 M Roadster M Coupe
    Part #: 17112227281
    Price: $199.95 (USD) 
    Quantity:   
    This radiator expansion tank (coolant reservoir) is used on E30 325e 325es 325i 325is 325ic from 1984-1987 and E28 528e 1982-1987.

    This item fits the following BMWs:
    1984-1987 E30 BMW 325e 325es 325i 325is 325ic 325ix
    1982-1988 E28 BMW 528e
    Part #: 17111707540
    Price: $62.95 (USD) 
    Quantity:   
    his high quality BEHR brand expansion tank is used on M42, M44, M50, M52, engines, and is a common failure item on all E36 3 series with 4 cylinder engines (318i/is/ti/ic) 1990-1999, Z3 with 1.9 liter and E34 525i from 1989-1995. BEHR was the original equipment supplier to BMW, so you know the BEHR made expansion tank will be the highest quality available. Be leary of competitors selling this part for less -- is it a BEHR? Probably not. We only carry the BEHR brand expansion tank as it is the only one we use in our own BMWs.

    This item fits the following BMWs:
    1990-1991 E30 BMW 318i 318is 318ic
    1992-1998 E36 BMW 318i 318is 318ti 318ic
    1989-1995 E34 BMW 525i
    1996-1998 Z3 BMW Z3 1.9
    Part #: 17111712835
    Price: $22.95 (USD) 
    Quantity:   
    This Genuine BMW cooling system expansion tank / coolant reservoir is a direct replacement for the factory unit. Replace your cracked or leaking radiator expansion tank today and save your valuable S14 engine for damage.

    This item fits the following BMWs:
    1988-1991 E30 BMW M3
    Part #: 17112225543
    Price: $74.95 (USD) 
    Quantity:   
    This radiator expansion tank cap fits E30 318i 325e 325es 325i 325is 325ix 325ic thru 1987. It is a common failure item. When this item fails, it cannot hold pressure which results in your BMW overheating. If you are overhauling your coolant system, now is the time to consider preventative replacing this cap. It is also referred to as the coolant reservoir cap.

    This item fits the following BMWs:
    1984-1987 E30 BMW 318i 325e 325es 325i 325is 325ic 325ix
    Part #: 17114379047
    Price: $9.95 (USD) 
    Quantity:   
    This radiator expansion tank cap fits E30 325e 325es 325i 325is 325ix 325ic with M20 engine from 1988 . It is a common failure item. When this item fails, it cannot hold pressure which results in your BMW overheating. If you are overhauling your coolant system, now is the time to consider preventative replacing this cap. It is also referred to as the coolant reservoir cap.

    This item fits the following BMWs:
    1988-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
    1989-1990 E34 BMW 525i with M20 engine
    Part #: 17111742232
    Price: $11.95 (USD) 
    Quantity:   
    This radiator expansion tank cap is used most BMW's from 1991-2006. It is a common failure item. When this item fails, it cannot hold pressure which results in your BMW overheating. If you are overhauling your coolant system, now is the time to consider preventative replacing this cap. It is also referred to as the coolant reservoir cap.

    This item fits the following BMWs:
    1990-1991 E30 BMW 318i 318is 318ic
    1992-1998 E36 BMW 318i 318is 318ic 323is 323ic 325i 325is 325ic 328i 328is M3
    1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
    1989-1995 E34 BMW 530i 535i 540i M5
    1991-1995 E34 BMW 525i
    1997-2003 E39 BMW 525i 528i 530i 540i M5
    1989-1994 E32 BMW 735i 735il 740i 740il 750il
    1995-2001 E38 BMW 740i 740il 750il
    2002-2008 E65 BMW 745i 745li 750i 750li 760i 760li
    1990-1998 E31 BMW 840i 840ci 850i 850ci 850csi
    2004-2011 E83 BMW X3 2.5i X3 3.0i X3 3.0si
    2000-2006 E53 BMW X5 30.0i X5 4.4i X5 4.6is X5 4.8is
    1996-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Coupe M Roadster
    2003-2008 E85 BMW Z4 2.5i Z4 3.0i Z4 3.0si M Roadster M Coupe
    2000-2003 E52 BMW Z8 Z8 Alpina
    2007+ E90 BMW 335i & 335xi
    Part #: 17111742231
    Price: $15.75 (USD) 
    Quantity:   
    Replace the flimsy plastic bleeder screw used in the coolant expansion tank or in one of the cooling system hoses with this high quality, durable, brass bleeder screw. This screw will help to prevent sudden failure of the bleeder screw, which can result in immediate overheating of the car. This item fits the following BMWs:
    1990-1991 E30 BMW 318i 318is 318ic
    1992-1998 E36 BMW 318i 318is 318ic 323is 323ic 325i 325is 325ic 328i 328is M3
    1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
    1989-1995 E34 BMW 525i
    1997-2003 E39 BMW 525i 528i 530i 540i M5
    1989-1994 E32 BMW 735i 735il 740i 740il 750il
    1995-2001 E38 BMW 740i 740il 750il
    1990-1998 E31 BMW 840i 840ci 850i 850ci 850csi
    2004-2006 E83 BMW X3 2.5i X3 3.0i
    2000-2006 E53 BMW X5 30.0i X5 4.4i X5 4.6is X5 4.8is
    1996-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Coupe M Roadster
    2003-2006 E85 BMW Z4 2.5i Z4 3.0i M Roadster M Coupe
    2006-2008 E85 BMW Z4 M Roadster M Coupe
    2000-2003 E52 BMW Z8 Z8 Alpina
    2007+ E90 BMW 335d
    Part #: 17111712788B
    Price: $5.95 (USD) 
    Quantity:   
    Hose clamps for radiator hoses, coolant hoses, vacuum hoses, or intake hoses. These hose clamps are the same style as your OEM hoses with a smooth inside band to prevent cutting into the hose material.

    Features:
  • 9mm band width
  • 6mm hex & slotted head
  • Smooth inside of band = optimal hose protection
  • OEM
  • 430 Stainless steel band and housing with zinc plated steel screw
  • Asymmetric housing = even distribution of forces and prevents tilting of the clamp when tightening
  • Screw support = ease of assembly due to the safe guidance of the emerging band
  • Short housing saddle = even contact pressure = improved efficiency

    Part Number Description Clamping Range in MM Clamping Range in Inches
    008-12T 8-12 HOSE CLAMP 8mm-12mm 5/16"-1/2"
    008-16T 8-16 HOSE CLAMP 8mm-16mm 5/16"-5/8"
    012-20T 12-20 HOSE CLAMP 12mm-20mm 1/2"-3/4"
    016-27T 16-27 HOSE CLAMP 16mm-27mm 5/8"-11/16"
    020-32T 20-32 HOSE CLAMP 20mm-32mm 3/4"-1 1/4"
    025-40T 25-40 HOSE CLAMP 25mm-40mm 1"-1 5/8"
    030-45T 30-45 HOSE CLAMP 30mm-45mm 1 3/16"-1 3/4"
    032-50T 32-50 HOSE CLAMP 32mm-50mm 1 3/8"-2"
    040-60T 40-60 HOSE CLAMP 40mm-60mm 1 5/8"-2 3/8"
    050-70T 50-70 HOSE CLAMP 50mm-70mm 2"-2 3/4"
    060-80T 60-80 HOSE CLAMP 60mm-80mm 2 3/8"-3 1/8"
    070-90T 70-90 HOSE CLAMP 70mm-90mm 2 3/4"-3 1/2"
    080-100T 80-100 HOSE CLAMP 80mm-100mm 3 1/8"-4"
    090-110T 90-110 HOSE CLAMP 90mm-110mm 3 1/2"-4 3/8"
    110-130T 110-130 HOSE CLAMP 110mm-130mm 4 3/8"-5 1/8"
  • Part #: Hose-Clamps
    Price: $1.50 (USD) 
    Coolant level sensor for most E30, E32, and E34 cars. Fits E30 M3 and all E30 325's; E32 735, 740, and 750; and E34 530, 535, 540, and M5.

    This item fits the following BMWs:
    1987-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325is 325ic 325xi M3
    1989-1995 E34 BMW 530i 535i 540i M5
    1987-1989 E24 BMW 635csi M6
    1988-1994 E32 BMW 735i 735il 740i 740il 750il
    Part #: 61311378320
    Price: $28.55 (USD) 
    Quantity:   
    Engine radiator double temperature fan switch, 91/99 degree celsius. This switch is designed to activate the auxiliary fan at the specified temperatures. A faulty switch can lead to the auxiliary fan not activating, causing over heating.

    This item fits the following BMWs:
    1987-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is 325ix M3
    1992-1995 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic M3
    1989-1995 E34 BMW 525i 530i 535i 540i M5
    1988-1994 E32 BMW 735i 735il 740i 740il 750il
    1990-1999 E31 BMW 840i 840ci 850i 850ci 850csi
    1996-7/1996 Z3 BMW Z3 1.9
    1996-5/1997 Z3 BMW Z3 2.8
    Part #: 61311378073
    Price: $77.95 (USD) 
    Quantity: