Temperature change causes the engine coolant to expand and contract. The coolant expansion tank gives the expanding and contracting fluid somewhere to go. It is quite common for the plastic tank to split, crack or even burst. If your tank fails it can cause coolant loss and result in major engine damage. A faulty cap can also cause the tank to over pressurize and split.
The coolant expansion tank cap maintains an elevated cooling system pressure to raise the boiling point of the liquid coolant, while venting excessive pressure to the atmosphere. These caps have a limited service life; they should be pressure-tested as part of a routine maintenance schedule, and replaced as part of any major cooling system overhaul.
This Kit Includes
Specifications
Expansion Tank - 17137823626
| Material |
Plastic |
| Extra Information |
Without coolant cap |
| Fitting Position |
For small expansion tank mounted to the side of main tank |
Coolant Cap - 17117639024
| Opening Pressure |
1.4 bar / 20 PSI |
| Mounting Type |
Screw connection |
| Thread Type |
Inner thread |
| Fitting Position |
For small expansion tank mounted to the side of main tank |
Part Numbers
Expansion Tank - 17137823626
| BMW, MINI OE Numbers |
17137823626, 17137539267 |
| topran Number |
502 920 |
| EAN |
4063926066181 |
| Barcode |
1222530000018 |
Coolant Cap - 17117639024
| BMW, MINI OE Numbers |
17117639024, 17132754264 |
| topran Number |
723 102 |
| EAN |
4063926065252 |
| Barcode |
1087040000015 |
Additional Information
Expansion Tank - 17137823626
| Brand |
topran |
| Quality |
Aftermarket + topran parts are quality inspected at HANS PRIES GMBH & CO. KG in Germany in accordance with DIN ISO 9001:2015
|
| Origin |
Made in China |
Coolant Cap - 17117639024
| Brand |
topran |
| Quality |
Aftermarket + topran parts are quality inspected at HANS PRIES GMBH & CO. KG in Germany in accordance with DIN ISO 9001:2015
|
| Origin |
Made in China |
Fitment
| BMW i3 I01 (2013-2021) E 125kW | Electric |
| BMW i3 I01 (2013-2021) 0.6L 125kW | Range Extender |
| BMW i3 I01 (2013-2021) E 135kW | s Electric |
| BMW i3 I01 (2013-2021) 0.7L 135kW | s Range Extender |
| MINI Roadster R59 (2011-2015) 1.6L 155kW | John Cooper Works |
| MINI Roadster R59 (2011-2015) 1.6L 135kW | Cooper S |
| MINI Roadster R59 (2011-2015) 1.6L 90kW | Cooper |
| MINI Paceman R61 (2012-2016) 1.6L 160kW | John Cooper Works |
| MINI Paceman R61 (2012-2016) 1.6L 135kW | Cooper S |
| MINI Paceman R61 (2012-2016) 1.6L 82kW | Cooper D |
| MINI Paceman R61 (2012-2016) 1.6L 90kW | Cooper |
| MINI Coupe R58 (2010-2015) 1.6L 155kW | John Cooper Works |
| MINI Coupe R58 (2010-2015) 1.6L 135kW | Cooper S ! Fitment Restriction: Code: CooperS
|
| MINI Coupe R58 (2010-2015) 1.6L 90kW | Cooper |
| MINI Convertible R57 (2007-2015) 1.6L 155kW | John Cooper Works |
| MINI Convertible R57 (2007-2015) 1.6L 128kW | Cooper S ! Fitment Restriction: Code: CooperS
|
| MINI Convertible R57 (2007-2015) 1.6L 88kW | Cooper |
| MINI Countryman R60 (2010-2016) 1.6L 160kW | John Cooper Works |
| MINI Countryman R60 (2010-2016) 2.0L 105kW | Cooper SD |
| MINI Countryman R60 (2010-2016) 1.6L 135kW | Cooper S |
| MINI Countryman R60 (2010-2016) 2.0L 82kW | Cooper D |
| MINI Countryman R60 (2010-2016) 1.6L 82kW | Cooper D |
| MINI Countryman R60 (2010-2016) 1.6L 90kW | Cooper |
| MINI Clubman R55 (2007-2014) 1.6L 155kW | John Cooper Works |
| MINI Clubman R55 (2007-2014) 1.6L 128kW | Cooper S ! Fitment Restriction: Code: CooperS
|
| MINI Clubman R55 (2007-2014) 1.6L 90kW | Cooper |
| MINI Clubman R55 (2007-2014) 1.6L 88kW | Cooper ! Fitment Restriction: Code: Cooper
|
| MINI Hatchback R56 (2006-2013) 1.6L 72kW | One |
| MINI Hatchback R56 (2006-2013) 1.6L 160kW | John Cooper Works GP ! Fitment Restriction: Code: CooperS JCWN18
|
| MINI Hatchback R56 (2006-2013) 1.6L 155kW | John Cooper Works |
| MINI Hatchback R56 (2006-2013) 1.6L 128kW | Cooper S ! Fitment Restriction: Code: CooperS
|
| MINI Hatchback R56 (2006-2013) 2.0L 82kW | Cooper D |
| MINI Hatchback R56 (2006-2013) 1.6L 82kW | Cooper D |
| MINI Hatchback R56 (2006-2013) 1.6L 88kW | Cooper ! Fitment Restriction: Code: Cooper
|
