BMW Cooling Overhaul Kits for BMW 3 Series E30 (1984-1991)

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If you are the type of person who, rather than fixing individual components as they break, likes to refresh everything at once to make sure your cooling system is stout, then you're in the right place. Our overhaul kits give you the option to purchase everything you need to get your cooling system back in check at once. Our overhaul kits generally include thermostat, water pump, radiator, hoses, and expansion tanks.
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Comprehensive Coolant Hose Kit - E30 M20
For vehicles with production date from 09/1987
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:41897490
Part#: E30M20HSTKT
Back Ordered
Sale - Save 2% $ 338.99

This product was last offered at the strikethrough price on
05-03-2026

$ 332.66 USD
Free Shipping on orders $49 and up
Sale - Save 2%
$ 338.99

This product was last offered at the strikethrough price on
05-03-2026

$ 332.66 USD
Free Shipping on orders $49 and up
This Comprehensive Coolant Hose Kit – E30 is a must-have for any BMW M20 enthusiast looking to maintain cooling efficiency and avoid future breakdowns. Restore your classic E30’s performance and reliability with a hose kit built to last.
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Complete Cooling System Overhaul Package - 1988-1991 E30 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:338650
Part#: TMS16418
Ships in 2 Business Days
Starting at $ 708.99 USD
Starting at $ 708.99 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.

Top Turner Tip 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
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Basic Cooling System Service Kit - E30 M20 2.5L 2.7L (up to 09/1987) ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:557223
Part#: E30M20BCKT
Back Ordered
$ 433.99

This product was last offered at the strikethrough price on
04-21-2026

$ 423.99 USD
Free Shipping
$ 423.99 USD
Free Shipping

Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

See kit contents below for all included components.

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Cooling System overhaul Kit - E30 325i/is/ix/e From 1988
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:554135
Part#: 11531722218KT3
Back Ordered
Sale - Save 1% $ 653.99

This product was last offered at the strikethrough price on
04-21-2026

$ 650.25 USD
Sale - Save 1%
$ 653.99

This product was last offered at the strikethrough price on
04-21-2026

$ 650.25 USD

This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the E30 325 with the M20 engine. 

A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts. 

This water pump fits the following BMWs: 
1998-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix 

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Complete Cooling System Overhaul Package - 1988-1992 E30 325i/is/ic ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:339938
Part#: TMS16415
In Stock
$ 314.99

This product was last offered at the strikethrough price on
05-17-2026

Starting at $ 308.98 USD
Starting at $ 308.98 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 (manual: 17112241912; automatic: 17112241913)
Upper (#11531722218) and lower (#11531718980) hoses to thermostat.
Thermostat with o-ring and housing gasket (#11531713040).
Water pump with timing belt and tensioner (#09-9320-000).
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
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Basic Cooling System Service Kit - E30 M42 1.8L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:557225
Part#: E30M42BCKT
Ships in 10 Business Days
Sale - Save 2% $ 194.99

This product was last offered at the strikethrough price on
05-03-2026

$ 191.24 USD
Free Shipping
Sale - Save 2%
$ 194.99

This product was last offered at the strikethrough price on
05-03-2026

$ 191.24 USD
Free Shipping

Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

See kit contents below for all included components.

Show More Show Less

Cooling System overhaul Kit - E30 318i 318is
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:554545
Part#: 17111712835KT5
Ships in 7 Business Days
Sale - Save 2% $ 356.99

This product was last offered at the strikethrough price on
05-03-2026

$ 349.75 USD
Free Shipping
Sale - Save 2%
$ 356.99

This product was last offered at the strikethrough price on
05-03-2026

$ 349.75 USD
Free Shipping

This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the E30 with the M42 engine. 

A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts. 

 

This kit fits the following BMWs:

318i 318is M42

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Complete Cooling System Overhaul Package - 1987 E30 325i/is/ic ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:340132
Part#: TMS16413
Ships on Aug 6, 2026
$ 283.99

This product was last offered at the strikethrough price on
05-17-2026

Starting at $ 272.98 USD
Starting at $ 272.98 USD
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 (manual: #17111468074; automatic: #17111468075)
Upper (#11531286914) and lower (#11531279895) hoses to thermostat.
Thermostat with o-ring and housing gasket (#11531713040).
Water pump (#11519071562)
Timing belt and tensioner (#09-9320-000).
Associated hoses with each of the above.
 - hose from water pump to thermostat (#11531287651)
 - hose from expansion tank to water pump (#11531289257)
 - hose from throttle body to thermostat (#13541705568)
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
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Basic Cooling System Service Kit - E30 M20 2.5L 2.7L (09/1987+) ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:557228
Part#: E30M20BCKT2
Back Ordered
Sale - Save 3% $ 309.99

This product was last offered at the strikethrough price on
04-21-2026

$ 300.32 USD
Free Shipping
Sale - Save 3%
$ 309.99

This product was last offered at the strikethrough price on
04-21-2026

$ 300.32 USD
Free Shipping

Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

See kit contents below for all included components.

Show More Show Less

Cooling System overhaul Kit - E30 325i/is/ix/e upto 1988
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:554131
Part#: 11531286914KT2
Back Ordered
$ 957.99

This product was last offered at the strikethrough price on
05-17-2026

$ 951.99 USD
$ 951.99 USD

This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the E30 325 with the M20 engine. 

A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts. 

This water pump fits the following BMWs: 
1986-1988 E30 BMW 325e 325es 325i 325ic 325is 325ix 

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