Original BMW Windshield Washer Reservoir Hose for E39 BMW 525i, 528i, 530i, 540i, and M5 (1997–2003)

Washer fluid travels from the reservoir to the hood nozzles through this Original BMW windshield washer reservoir hose, part number 61-66-8-361-041, built for the E39 BMW 525i, 528i, 530i, 540i, and M5 from 1997 to 2003. On any washer system, the pump at the reservoir pushes fluid through lines like this one to the spray jets. BMW names it the reservoir hose, gives a weight of 13 g (0.46 oz), and shows production starting in September 1995. With age this line turns brittle and begins to leak, losing washer fluid instead of delivering it to the nozzles. It is made in Germany and sold as a single piece.

Original BMW Parts carry a 24-month parts warranty.

BMW applies this single hose number across the E39 range, from the M52 and M54 six-cylinder cars to the M62 V8 in the 540i and the S62 engine in the M5. Because the number is shared across those engines, there is no version to choose between for the models covered here. BMW shows no replacement number for it, and the same hose has stayed in production since September 1995.

Technical Details

• Manufacturer: BMW (Original BMW Parts)
• Part number: 61-66-8-361-041
• BMW part name: Reservoir hose
• Function: carries washer fluid between the reservoir and the hood nozzles
• Chassis: E39 5 Series
• Weight: 13 g (0.46 oz)
• Production start: September 1995
• Sold as: single piece
• Country of manufacture: Germany
• Warranty: 24 months

Common Questions

What happens to the factory hose over time?
It becomes brittle and tends to leak washer fluid.

Does the same hose fit both the 540i and the M5?
Yes. BMW uses this one number on the M62 540i and the S62 M5, as well as the six-cylinder cars.

Is this a genuine BMW part?
Yes. It is an Original BMW hose made in Germany.

PMB ships Original BMW parts for E39 owners who want their cars kept factory correct.

Fitment & Compatibility

Check the table below for the exact year, model, submodel, and any listed notes. PMB Performance can confirm this against your VIN, backed by more than 20 years of parts and fitment work.