Rein CHM0522 Engine Coolant Reservoir Plug
OE Quality 60-Day Returns
Rein

Rein CHM0522 Engine Coolant Reservoir Plug

Brand Rein CHM0522
Application Type ApplicationSpecific
Color Black
Container Type BG
Country of Origin DE
Heat Shield Inc No
Hose Material Plastic
Hose Type Single
Item Qty 5
Item UOM EA
Item Weight Unit UOM LB
Link to Manufacturer Page www.reinautomotive.com
Product Desc Extended 240 Rein OE Quality blind plugs are designed to be direct replacements for OE blind plugs.
Product Desc Invoice 40 Rein Blind Plug
Product Desc Long 80 Rein OE Quality Blind Plug
Product Desc Short 20 Blind Plug
Protective Shield Inc No
Warranty Distance 24000
Warranty Time 24
Fits Rolls-Royce and BMW · 176 vehicles

OE direct replacement. Designed to match the original plug for a straightforward install.

Tight-sealing design. Helps prevent leaks with a secure, reliable fit.

OE quality construction. Made to strict engineering standards with quality materials.

Cross-references 11531436850 for the same application. See all 1.

$12.49Free shipping
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Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Engine Coolant Reservoir Plug options

OE-Style Coolant Reservoir Plug

Rein CHM0522 is an OE-quality engine coolant reservoir plug made for European vehicles that use a direct-fit blind plug at the expansion tank or upper flange. Built to match the original design, it supports a secure seal for BMW and Rolls-Royce cooling system service.

Compatible With select BMW X5, BMW X3, BMW 5 Series, BMW 7 Series, BMW 6 Series, BMW i3, and Rolls-Royce Ghost, Dawn, and Wraith applications where the OE blind plug is specified.

  • Manufactured to strict engineering quality standards
  • Produced using high-quality materials for cooling system use
  • OE-manufacturer produced for original-style fit and function
  • Designed to create a tight seal that resists leakage
  • Black plastic construction
  • Application-specific fitment for direct replacement use

Detailed Product Information

This Rein blind plug is designed as a direct replacement for the original coolant reservoir plug used on select European vehicles. The CHM0522 follows OE dimensions and sealing requirements so it installs in the same location as the factory part, helping maintain proper coolant system closure at the expansion tank to upper flange connection. This part cross-references BMW 11531436850 for the same application.

Use CHM0522 when servicing BMW cooling system components on models such as the 2014-2018 BMW X5, 2015-2017 BMW X3, and 2004-2007 BMW 530i, as well as select Rolls-Royce Ghost, Dawn, and Wraith applications. The part number CHM0522 is also a useful reference when sourcing an OE-style coolant reservoir plug for BMW and Rolls-Royce vehicles.

Common Uses

  • Replacing a cracked or missing expansion tank blind plug
  • Restoring a sealed coolant reservoir opening after service
  • Addressing coolant seepage at the upper flange connection
  • Correcting fitment issues caused by worn OE plastic plugs
  • Maintaining proper closure on BMW and Rolls-Royce cooling systems

Installation Notes

Verify the original plug style and location before installation. This part is application-specific and should be matched to the vehicle’s expansion tank or upper flange design. Inspect the sealing surface for debris, hardened residue, or damage before installing the new plug. For best results, confirm fitment by year, make, model, and cooling system configuration before service.

Quality Assurance

Rein Automotive OE-quality plugs are built to match the original manufacturer’s design standards for European vehicles. CHM0522 is produced in Germany and carries a 24-month or 24,000-mile warranty.

This part fits 176 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelDrive TypeLitersCylindersFuel TypePositionNotes
2025Rolls-RoyceGhost——6.7LV12—N/A—
2024Rolls-RoyceGhost——6.7LV12—N/A—
2023Rolls-RoyceGhost——6.7LV12—N/A—
2022BMWi3s——-L--BATTERY EV (EV/BEV)N/A—
2022Rolls-RoyceGhost——6.7LV12—N/A—
2021BMWi3——-L--ELECTRICN/A—
2021BMWi3——0.6LL2ELECTRIC/GASN/A—
2021BMWi3s——-L--ELECTRICN/A—
2021BMWi3s——0.6LL2ELECTRIC/GASN/A—
2021Rolls-RoyceDawn——6.6LV12—N/A—
2021Rolls-RoyceGhost——6.7LV12—N/A—
2021Rolls-RoyceWraith——6.6LV12—N/A—
2020BMWi3——-L--ELECTRICN/A—
2020BMWi3——0.6LL2ELECTRIC/GASN/A—
2020BMWi3s——-L--ELECTRICN/A—
2020BMWi3s——0.6LL2ELECTRIC/GASN/A—
2020Rolls-RoyceDawn——6.6LV12—N/A—
2020Rolls-RoyceGhost——6.6LV12—N/A—
2020Rolls-RoyceWraith——6.6LV12—N/A—
2019BMW640i Gran Coupe—RWD3.0LL6—N/A—
2019BMWi3——-L--ELECTRICN/A—
2019BMWi3——0.6LL2ELECTRIC/GASN/A—
2019BMWi3s——-L--ELECTRICN/A—
2019BMWi3s——0.6LL2ELECTRIC/GASN/A—
2019Rolls-RoyceDawn——6.6LV12—N/A—
2019Rolls-RoyceGhost——6.6LV12—N/A—
2019Rolls-RoyceWraith——6.6LV12—N/A—
2018BMW640i—RWD3.0LL6—N/A—
2018BMW640i Gran Coupe—RWD3.0LL6—N/A—
2018BMWi3——-L--ELECTRICN/A—
2018BMWi3——0.6LL2ELECTRIC/GASN/A—
2018BMWi3s——-L--ELECTRICN/A—
2018BMWi3s——0.6LL2ELECTRIC/GASN/A—
2018BMWX5——3.0LL6DIESELN/AExpansion Tank To Upper Flange
2018Rolls-RoyceDawn——6.6LV12—N/A—
2018Rolls-RoyceGhost——6.6LV12—N/A—
2018Rolls-RoyceWraith——6.6LV12—N/A—
2017BMW640i—RWD3.0LL6—N/A—
2017BMW640i Gran Coupe—RWD3.0LL6—N/A—
2017BMWi3——-L--ELECTRICN/A—
2017BMWi3——0.6LL2ELECTRIC/GASN/A—
2017BMWX3——2.0LL4DIESELN/AExpansion Tank To Upper Flange
2017BMWX5——3.0LL6DIESELN/AExpansion Tank To Upper Flange
2017Rolls-RoyceDawn——6.6LV12—N/A—
2017Rolls-RoyceGhost——6.6LV12—N/A—
2017Rolls-RoyceWraith——6.6LV12—N/A—
2016BMW640i—RWD3.0LL6—N/A—
2016BMW640i Gran Coupe—RWD3.0LL6—N/A—
2016BMWActiveHybrid 5——3.0LL6—N/A—
2016BMWi3——-L--ELECTRICN/A—
2016BMWi3——0.6LL2ELECTRIC/GASN/A—
2016BMWX3——2.0LL4DIESELN/AExpansion Tank To Upper Flange
2016BMWX5——3.0LL6DIESELN/AExpansion Tank To Upper Flange
2016Rolls-RoyceDawn——6.6LV12—N/A—
2016Rolls-RoyceGhost——6.6LV12—N/A—
2016Rolls-RoyceWraith——6.6LV12—N/A—
2015BMW640i—RWD3.0LL6—N/A—
2015BMW640i Gran Coupe—RWD3.0LL6—N/A—
2015BMW740i——3.0LL6—N/A—
2015BMW740Ld xDrive——3.0LL6DIESELN/AExpansion Tank To Upper Flange
2015BMW740Li—RWD3.0LL6—N/A—
2015BMW750i xDrive—AWD4.4LV8—N/A—
2015BMW750Li xDrive—AWD4.4LV8—N/A—
2015BMW760Li——6.0LV12—N/A—
2015BMWActiveHybrid 5——3.0LL6—N/A—
2015BMWi3——-L--ELECTRICN/A—
2015BMWi3——0.6LL2ELECTRIC/GASN/A—
2015BMWX3——2.0LL4DIESELN/AExpansion Tank To Upper Flange
2015BMWX5——3.0LL6DIESELN/AExpansion Tank To Upper Flange
2015Rolls-RoyceGhost——6.6LV12—N/A—
2015Rolls-RoyceWraith——6.6LV12—N/A—
2014BMW640i—RWD3.0LL6—N/A—
2014BMW640i Gran Coupe—RWD3.0LL6—N/A—
2014BMW740i——3.0LL6—N/A—
2014BMW740Li—RWD3.0LL6—N/A—
2014BMW750i xDrive—AWD4.4LV8—N/A—
2014BMW750Li xDrive—AWD4.4LV8—N/A—
2014BMW760Li——6.0LV12—N/A—
2014BMWActiveHybrid 5——3.0LL6—N/A—
2014BMWi3——-L--ELECTRICN/A—
2014BMWi3——0.6LL2ELECTRIC/GASN/A—
2014BMWX5——3.0LL6DIESELN/AExpansion Tank To Upper Flange
2014Rolls-RoyceGhost——6.6LV12—N/A—
2014Rolls-RoyceWraith——6.6LV12—N/A—
2013BMW535i——3.0LL6—N/A—
2013BMW535i GT——3.0LL6—N/A—
2013BMW535i GT xDrive——3.0LL6—N/A—
2013BMW535i xDrive——3.0LL6—N/A—
2013BMW550i——4.4LV8—N/A—
2013BMW550i xDrive——4.4LV8—N/A—
2013BMW640i——3.0LL6—N/A—
2013BMW640i Gran Coupe——3.0LL6—N/A—
2013BMW740i——3.0LL6—N/A—
2013BMW740Li—RWD3.0LL6—N/A—
2013BMW750i xDrive—AWD4.4LV8—N/A—
2013BMW750Li xDrive—AWD4.4LV8—N/A—
2013BMW760Li——6.0LV12—N/A—
2013BMWActiveHybrid 5——3.0LL6—N/A—
2013Rolls-RoyceGhost——6.6LV12—N/A—
2012BMW535i——3.0LL6—N/A—
2012BMW535i GT——3.0LL6—N/A—
2012BMW535i GT xDrive——3.0LL6—N/A—
2012BMW535i xDrive——3.0LL6—N/A—
2012BMW550i——4.4LV8—N/A—
2012BMW550i GT——4.4LV8—N/A—
2012BMW550i GT xDrive——4.4LV8—N/A—
2012BMW550i xDrive——4.4LV8—N/A—
2012BMW640i——3.0LL6—N/A—
2012BMW650i——4.4LV8—N/A—
2012BMW650i xDrive——4.4LV8—N/A—
2012BMW750iActiveHybrid—4.4LV8—N/A—
2012BMW750LiActiveHybrid—4.4LV8—N/A—
2012BMW760Li——6.0LV12—N/A—
2012BMWActiveHybrid 5——3.0LL6—N/A—
2012Rolls-RoyceGhost——6.6LV12—N/A—
2011BMW528i——3.0LL6—N/A—
2011BMW535i——3.0LL6—N/A—
2011BMW535i GT——3.0LL6—N/A—
2011BMW535i GT xDrive——3.0LL6—N/A—
2011BMW535i xDrive——3.0LL6—N/A—
2011BMW550i——4.4LV8—N/A—
2011BMW550i GT——4.4LV8—N/A—
2011BMW550i GT xDrive——4.4LV8—N/A—
2011BMW550i xDrive——4.4LV8—N/A—
2011BMW750iActiveHybrid—4.4LV8—N/A—
2011BMW750LiActiveHybrid—4.4LV8—N/A—
2011BMW760Li——6.0LV12—N/A—
2011Rolls-RoyceGhost——6.6LV12—N/A—
2010BMW528i——3.0LL6—N/A—
2010BMW528i xDrive——3.0LL6—N/A—
2010BMW535i——3.0LL6—N/A—
2010BMW535i GT——3.0LL6—N/A—
2010BMW535i xDrive——3.0LL6—N/A—
2010BMW550i——4.8LV8—N/A—
2010BMW550i GT——4.4LV8—N/A—
2010BMW550i GT xDrive——4.4LV8—N/A—
2010BMW650i——4.8LV8—N/A—
2010BMW760Li——6.0LV12—N/A—
2010Rolls-RoyceGhost——6.6LV12—N/A—
2009BMW528i——3.0LL6—N/A—
2009BMW528i xDrive——3.0LL6—N/A—
2009BMW535i——3.0LL6—N/A—
2009BMW535i xDrive——3.0LL6—N/A—
2009BMW550i——4.8LV8—N/A—
2009BMW650i——4.8LV8—N/A—
2008BMW528i——3.0LL6—N/A—
2008BMW528xi——3.0LL6—N/A—
2008BMW535i——3.0LL6—N/A—
2008BMW550i——4.8LV8—N/A—
2008BMW650i——4.8LV8—N/A—
2007BMW525i——3.0LL6—N/A—
2007BMW525xi——3.0LL6—N/A—
2007BMW530i——3.0LL6—N/A—
2007BMW530xi——3.0LL6—N/A—
2007BMW550i——4.8LV8—N/A—
2007BMW650i——4.8LV8—N/A—
2006BMW525i——3.0LL6—N/A—
2006BMW525xi——3.0LL6—N/A—
2006BMW530i——3.0LL6—N/A—
2006BMW530xi——3.0LL6—N/A—
2006BMW550i——4.8LV8—N/A—
2006BMW650i——4.8LV8—N/A—
2005BMW525i——2.5LL6—N/A—
2005BMW530i——3.0LL6—N/A—
2005BMW545i——4.4LV8—N/A—
2005BMW645Ci——4.4LV8—N/A—
2004BMW525i——2.5LL6—N/A—
2004BMW530i——3.0LL6—N/A—
2004BMW545i——4.4LV8—N/A—
2004BMW645Ci——4.4LV8—N/A—
2003BMWX5——4.4LV8—N/A—
2003BMWX5——4.6LV8—N/A—
2002BMWX5——4.4LV8—N/A—
2002BMWX5——4.6LV8—N/A—
2001BMWX5——4.4LV8—N/A—
2000BMWX5——4.4LV8—N/A—
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
11531436850