BMW E36 Radiator Cap 140 Degrees - BMW 17137639023 Bmw E46 R
💳6 taksit vade farksızBilgi alBMW E46 Radiator (Expansion Tank) Cap - 140
Original BMW (17137639023) | 1.4 Bar Pressure Valve | Branded Product
This is an original BMW (17137639023) branded radiator spare part water reservoir cap designed for the cooling system of BMW 3 Series E46 Chassis (1998-2005) vehicles (especially those with M47/M57 diesel engine versions). This part is not just a plastic cap that holds water inside; it is a precise 1.4 Bar (140) pressure adjustment valve that maintains the temperature balance of your engine and prevents the system from bursting. Over time, caps that lose their function due to spring fatigue or hardening of the o-ring gasket can cause water to evaporate secretly or hoses to swell excessively. It offers 100% original BMW assurance for those who do not want to leave the cooling system to chance.
- 100% Original Branded Part: Completely eliminates the risks of "opening at the wrong pressure" or "premature failure" commonly encountered with aftermarket caps. Restores the quality and reliability of your vehicle to that of the day it left the factory.
- Vital 1.4 Bar (140) Valve: Safely releases excess air when the system pressure exceeds 1.4 bar (when it reaches a dangerous limit) and reseals the system when the pressure returns to normal, preventing the coolant from boiling.
- Sealed Original Gasket: Thanks to the original rubber gasket that withstands the constantly changing temperatures (expansion/contraction) under the hood, it effectively prevents the water in the system from evaporating and escaping.
- Hidden Water Loss and Overheating Solution: If your E46 is constantly losing water but you cannot find any physical dripping (leak) in the hoses or radiator, you can solve the problem by replacing your faulty and steam-leaking old cap with this original part.
Technical Details
| Brand | BMW (Original Branded Product) |
| Product Code | 17 13 7 639 023 |
| Opening Pressure (Valve Value) | 1.4 Bar (Marked 140 on the cap) |
| Compatibility | BMW E46 Chassis (Typically Diesel Engines and 1.4 Bar System Vehicles) |
Frequently Asked Questions (FAQ)
This product is equivalent to the following OEM/original part numbers. You can search by your vehicle's original part number.
Compatible vehicle information not yet added.


