This Coolant Expansion Tank Cap for BMW 3 4 5 6 7 Series a high-quality OEM-standard replacement designed to maintain proper pressure in the coolant reservoir, prevent leaks, and ensure optimal engine temperature under all driving conditions. Manufactured from durable heat-resistant materials, this cap guarantees long-term reliability and protection for your vehicle’s cooling system.

 

Compatibility:

for BMW 3 Series

• 03.2007 – 12.2011 Sedan (E90) M3
• 03.2007 – 12.2013 Coupe (E92) M3
• 03.2007 – 10.2013 Convertible (E93) M3
• 04.2012 – present (F30 / F80) M3

for BMW 4 Series

• 01.2014 – present Coupe (F32 / F82) M4
• 07.2014 – present Convertible (F33 / F83) M4

for BMW 5 Series

• 09.2007 – 03.2010 Sedan (E60) 520i
• 01.2007 – 03.2010 Sedan (E60) 523i
• 09.2003 – 03.2010 Sedan (E60) 525i
• 10.2004 – 12.2009 Sedan (E60) 525i
• 12.2001 – 02.2005 Sedan (E60) 530i
• 09.2004 – 02.2007 Sedan (E60) 530i
• 09.2006 – 12.2009 Sedan (E60) 530i
• 09.2003 – 03.2010 Sedan (E60) 545i
• 07.2005 – 03.2010 Sedan (E60) 540i
• 07.2005 – 03.2010 Sedan (E60) 550i
• 09.2004 – 03.2010 Sedan (E60) M5

for BMW 5 Touring

• 09.2004 – 02.2007 Touring (E61) 530i
• 01.2007 – 12.2010 Touring (E61) 530i

for BMW 5 Gran Turismo

• 01.2009 – 02.2017 Gran Turismo (F07) 535i
• 08.2009 – 06.2012 Gran Turismo (F07) 550i

for BMW 5 (F10)

• 01.2009 – 10.2016 (F10) 535i
• 09.2010 – 08.2016 (F10) ActiveHybrid
• 01.2009 – 06.2013 (F10) 550i

for BMW 5 Touring (F11)

• 11.2009 – present Touring (F11) 535i

for BMW 6 Series

• 01.2004 – 08.2005 (E63) 645Ci
• 07.2005 – 07.2010 (E63) 650i
• 09.2005 – 07.2010 (E63) M6

for BMW 6 Convertible

• 04.2004 – 08.2005 Convertible (E64) 645Ci
• 07.2005 – 07.2010 Convertible (E64) 650i
• 07.2006 – 07.2010 Convertible (E64) M6
• 03.2011 – present Convertible (F12) 640i
• 03.2011 – present Convertible (F12) 650i

for BMW 6 Coupe (F13)

• 11.2010 – present Coupe (F13) 640i
• 11.2010 – present Coupe (F13) 650i

for BMW 7 Series

• 10.2008 – 12.2015 Sedan (F01 / F02 / F03 / F04) 740i
• 10.2008 – 12.2015 Sedan (F01 / F02 / F03 / F04) 750i
• 09.2009 – 12.2015 Sedan (F01 / F02 / F03 / F04) 760i

for BMW X5

• 02.2006 – 09.2008 (E70) 3.0si
• 09.2010 – 06.2013 (E70) xDrive35i
• 09.2009 – 06.2013 (E70) M
• 02.2007 – 09.2008 (E70) 4.8i xDrive
• 07.2009 – 06.2013 (E70) xDrive50i

for BMW X6

• 06.2007 – 06.2014 (E71 / E72) xDrive35i
• 10.2007 – 06.2014 (E71 / E72) xDrive50i
• 07.2008 – 06.2014 (E71 / E72) M

 

Reference OEM: 17117639021, 17137516004

 

Key Features & Benefits

• Perfect Fit OEM Replacement – designed to meet OEM standards for direct fitment and compatibility for BMW cooling systems.
• Maintains Optimal Pressure – ensures proper pressure balance in the coolant expansion tank, preventing overheating or coolant loss.
• Durable & Heat-Resistant – made from premium reinforced plastic and high-temperature rubber seal for long-lasting performance.
• Leak-Proof Design – advanced sealing technology prevents coolant leaks and maintains system integrity.
• Easy Installation – simple screw-on design; no tools or special skills required.
• Restores Cooling Efficiency – helps keep your engine running at ideal operating temperatures.

 

Specifications:

• Type: Coolant Expansion Tank Cap
• Placement on Vehicle: Engine Bay
• Color: Black
• Material: Reinforced Plastic and Rubber Seal
• Pressure rating: 200 kPa (2 bar)

 

Installation Guide (Quick & Easy)

• Allow the engine to cool completely before opening the cooling system.
• Locate the coolant expansion tank and remove the old cap by turning it counterclockwise.
• Clean the sealing surface of the tank neck if necessary.
• Install the new cap and tighten it clockwise until secure.
• Check for leaks after engine warm-up.

 

Package Includes: Coolant Expansion Tank Cap