P/N: 17117573751 Mahle Behr
OEM
OEM
Cross References:
- 376702174
- 70825614NA
- The coolant reservoir on your BMW holds excess coolant until needed by the engine’s cooling system, allows for expansion and contraction of the coolant as it heats and cools, and regulates the overall pressure within the cooling system and the boiling point of the coolant.
- If the coolant reservoir develops a leak, the cooling system will not pressurize and your engine will lose coolant, resulting in your BMW’s engine to overheat.
- The Mahle Behr 70825614NA expansion tank is an original equipment replacement expansion tank for your 2003-2008 BMW Z4 M54 and N52 engines.
- With over 100 years of automotive parts manufacturing experience, Mahle Behr is one of the world’s largest suppliers of original equipment automotive parts with 160 facilities in over 30 countries.
Left = Driver side and Right = Passenger side.
All parts are priced individually unless identified as a set or kit. “Per car” notes identify how many of a given part your car has and
“Left/Right or Front/Rear” notes means the part fits the left or right side of the car. These parts are still sold individually and you’ll
need to select the appropriate quantity if you plan to replace more than one of this item.
“Left/Right or Front/Rear” notes means the part fits the left or right side of the car. These parts are still sold individually and you’ll
need to select the appropriate quantity if you plan to replace more than one of this item.







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