If your vehicle is experiencing cooling issues, chances are the thermostat is the cause. Common symptoms include prolonged warm-up at highway speeds from the thermostat being stuck open, or consistent overheating issues from the thermostat being stuck in the closed position. Either condition can result in poor performance, and potential damage to vital components in your vehicle.

Kit includes

• Wahler Thermostat
• 1 liter of Coolant

This item fits the following BMWs: 
2008-2013  E82 BMW  135i 135is 1M Coupe 
2013+  E84 BMW  X1 xDrive35i 
2011  E90 BMW  335i 335xi 335i xDrive - Sedan 
2011-2013  E92 BMW  335i 335xi 335i xDrive - Coupe 
2011-2013  E93 BMW  335i Convertible 
2011-2013  E70 BMW  X5 xDrive35i 
2011-2013  E71 BMW  X6 xDrive35i

The water pumps in BMW N54 models are known for failure near 80,000 miles. This is a very common issue that often times leaves the owner stranded. This kit provides a single stop for the water pump and thermostat replacement to save the search and get you back on the road.

Included in this kit:

Thermostat
Water pump
Genuine BMW coolant
Mounting hardware required for both the thermostat and water pump

The water pumps in BMW's should be serviced near 80,000 miles and may become an issue often times leaving the owner stranded. The aftermarket kit offered provides a single stop for water pump and thermostat replacement needs to save the search and get you back on the road.

Kit includes:

• Mahle-Behr thermostat
• Geba water pump
• Vaico coolant
• Mounting hardware required for the water pump
• O-rings for the thermostat housing

This item fits the following BMWs:
2005+ E60 BMW M5
2005+ E63 BMW M6

This packages covers the major components you would install along with a new water pump or thermostat. On the N54 cars (135i, 335i, 535i) the water pump and theremostat are mounted together. In fact, to get to the thermostat, BMW expects you to remove the water pump. This package covers the whole job. With the electric water pump now an integral part of the efficiency and performance of the engine, staying on top of its maintenance and replacement is the smart thing to do.

Our water pump/thermostat overhaul includes:

• OEM VDO electric water pump, p/n 11517588885 or 11517632426
• OEM mounting screws for water pump (set of 3), p/n 11517602123
• OEM Behr thermostat, p/n 11537549476
• Original BMW connecting hose from thermostat to water pump, p/n 11537545665
• Original BMW hose clamps for hose (x 2)
  
• BUY AS A PACKAGE AND SAVE $$!
  
  The water pump on the N54 engine has more cooling responsibilities than ever before. Not only must it provide cooling for the engine, but it's also pumping fluid used to cool the turbocharger oil and automatic transmission oil. The good news is that the pump only works when, and only as much, as it needs to. The engine computer dictates how much fluid needs to be pumped through the system depending on the load. That means the system can actually stop the pump when warmer temperatures are needed. No longer is the pump spinning all the time from an engine-driven belt. The bad news is that it's now an electrical part, so a failure is usually immediate and with no warning. And if the electronics are at fault, there is no way to rebuild or repair it. Fortunately, the engine computer will force a shut down or reduce power if a problem occurs, preventing catastrophic engine damage.
  
  How to avoid a water pump failure in the future? Replacing the water pump as part of a regular interval schedule will ensure you always have a functioning pump in place. Since this technology is relatively new for BMW, therefore the lifecycle of the pump isn't yet known, we have been recommending replacement every 80-100k miles. This package of OE/OEM parts covers everything with Original BMW coolant offered to finish off the job. A proper bleeding procedure must be followed with the new electric pump.
  
  This water pump package fits the following BMWs with the N54 engine:
  2007-2010 E60 BMW 535i 535xi 535i xDrive
  2008-2010 E82 BMW 135i
  2011-2012 E82 BMW 1M Coupe
  2006-2010 E90 BMW 335i 335xi 335i xDrive - Sedan
  2007-2010 E92 BMW 335i 335is 335xi 335i xDrive - Coupe
  2007-2010 E93 BMW 335i - Convertible

When it comes time to replace your thermostat, be sure you have everything you need. This kit includes everything you need to replace your thermostat, including the thermostat.

Kit includes:

• Mahle-Behr thermostat with gasket
• Thermostat mounting hardware
• 1 liter of coolant

Applications:
1999-2003 E39 528i, 525i, 530i sedan, touring wagon (M52TU engine, M54 engine)
1999-2005 E46 323, 328, 325, 330 sedan, coupe, cabrio, touring wagon (M52TU engine, M54 engine)
2004-2005 E60 525i, 530i sedan, touring wagon (M54 engine)
2001-2006 E53 X5 3.0 (M54 engine)
2004-2006 E83 X3 2.5i X3 3.0i (M54 engine)
1999-2002 Z3 2.3. Z3 2.5i, 2.8 Z3 3.0i (M54 engine)
2003-2005 Z4 2.5i, Z4 3.0 (M54 engine)

The N54 engine, like many BMW engines, has a reputation for encountering cooling system issues. To address this, Turner Motorsport enthusiasts have curated a comprehensive kit to safeguard your N54 cooling system against potential failures.

Included in the kit:

1. Turner Motorsport Heavy Duty Aluminum Expansion Tank Kit:

Enhances the factory plastic tank design, known for its vulnerability to failure. Maintains original coolant capacity and expansion volume. Features a baffled tank design to prevent air pockets during aggressive driving. Includes a specially designed bleed passage to avoid air introduction during engine cooldown. Constructed with fully-TIG welded 5052 aluminum. Comes with aluminum bleeder screw, OE coolant level sensor, expansion tank cap, flared coolant pressure release line, and all necessary installation hardware. 2. ECS Performance Coolant Outlet Hose Kit:

4-ply reinforced silicone outlet hose. Internal layer lined with Flourosilicone for exceptional chemical resistance. Equipped with billet 6061-T6 outlet adapter. 3. Redline Water-Wetter Coolant Additive - 12 oz:

Lowers coolant temperatures by up to 30*F. Compatible with various cooling system components including aluminum, cast iron, copper, brass, and bronze. For N54 owners seeking enhanced cooling system performance and longevity, especially those pushing significant power, this kit is indispensable.

The cooling system is one of the major weak points on the N62 engine in the 550i/650i. The water pump itself won't last more than 100,000 miles in most cases and the engine itself is prone to coolant leaks from multiple locations. So a major 550i cooling system overhaul should be planned before the 100,000 mile mark. Aside from obvious leaks the 550i water pump will also squeal or screech indicating the bearings inside have worn. This package covers the water pump, thermostat, and radiator for the 2006-2010 E60 550i and E63 650i with a manual transmission.

The entire cooling system on the 550i is susceptible to leaks and poor performance. The condition of the rest of the cooling system should be considered along with the water pump and thermostat. Replacing the water pump will expose the front of the V8 engine where more problem areas may appear so plan accordingly. The biggest problem is the V8 valley pan gaskets and inner coolant tube seals. The tube carrying coolant through the valley is prone to leaking and replacement is a major job (see our valley pan pipe kit here). Additional items recommended to be replaced during the water pump job are: cooling hoses, expansion tank and cap, temp sensors, drive belts, and pulleys and tensioners.

Base 550i/650i Cooling Package includes:

• OEM Behr radiator (17117519210)
• OEM water pump (11517586779)
• water pump pipe (back of pump to engine block) (11511439976)
• OEM thermostat (11537586885)
  
• BUY AS A PACKAGE AND SAVE $$!
  
  This item fits the following BMWs:
  2006-2010 E60 BMW 550i with manual transmission
  2006-2011 E63 BMW 650i with manual transmission

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 2008-2010 E60 528i/528xi models with an automatic transmission (N52 engine).

Much of the later E60 cooling system is strong and reliable compared to the previous generation 5-series models. But there is still the potential for serious cooling system and engine-related failures. On the N52 engine the electric water pump is the weakest link. It will fail without much warning and shut down the engine. Preventative replacement is the best course of action and the water pump and thermostat should be done before they reach 60,000 miles. Several other cooling components are due for replacement by 100,000 miles to prevent other breakdowns. 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 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.

Our base kit comes with the OEM Behr thermostat, Original BMW electric water pump with mounting screws, and the u-shaped hose between the pump and thermostat. From there you can add additional items to complete the overhaul - radiator, expansion tank, cap, and new radiator hoses..

E60 528i Automatic Radiator Options. There are two styles of radiators for the E60 6-cylinder and automatic transmission: original and updated. You can use either radiator as long as you have the correct corresponding parts to go with it. Both radiators are still available from BMW or the OE supplier Behr. If it were up to us we would prefer the updated style because it won't cause any confusion down the road and it reduces the number of potential leak points by eliminating an unnecessary fitting.

• Original, BMW #17117534914. This setup has an extra fitting for the engine oil heat exchanger along with a hose that attaches to the water pump pipe and heat exchanger. In order to use this radiator you must use the corresponding hose. This was the original setup as the car was built at the factory and is pictured in the radiator image to the right. At some point BMW stopped listing this part number in their official diagrams and used the 209 number below.
• Updated, BMW #17117519209. This is the updated style from BMW. If your radiator was replaced at some point after 2010 it most likely has this radiator style. On this radiator they did away with the extra fitting for the heat exchanger. When looking at the ETK or RealOEM diagrams it will only list this radiator but with a note saying you also need two compensators (spacer blocks, #17117520335) and the hose (11537519494).

Click here for diagrams of both E60 radiator options.

E60 528i Cooling Hoses. There are a lot of hoses on the N52 engine. Not all of them need to be replaced during an overhaul but it would be a good idea. The hoses themselves don't wear but the metal spring clips on the connector lose their tension over time and that can lead to a leak. It's worse when re-using a hose after it's already been disconnected. Since our package includes the thermostat, water pump, and radiator we offer all of the hoses related to those components. Use the diagram on the right to see where each is connected in the engine bay. Evaluate your current hoses and then decide which ones to replace. One note about the lower radiator hose: when ordering a new hose you must order a new temp sensor. Do not reuse the original temp sensor as it will leak on the new hose.

This item fits the following BMWs:
2008-2010 E60 BMW 528i 528xi with automatic transmission