BMW bulletin B612315

"The Low Washer Fluid Warning Light is illuminated when the Washer Fluid Tank is Full. INFORMATION The use of a ""non-approved"" washer fluid can cause the low fluid warning light to come on even when the reservoir is full. An analysis of parts returned to warranty has shown the sensor is operating correctly. Do not replace the reservoir with integrated sensor for these situations. We recommend using ""BMW Group approved"" washer fluid when servicing the vehicle or performing repairs on the windshield washer system. Refer to ISTA document ""FB-GZ-B17A-F20 Washer fluid level sensor"" for information on how this capacitive sensor operates. If the correct washer fluid is being used, diagnose the system using normal troubleshooting with ISTA. A fault code may be stored if an electrical fault occurs in the circuit. PARTS INFORMATION Part NumberDescriptionQuantity83 19 2 406 220BMW WWS Cold Weather Concentrate 35% 55 GalAs needed83 19 2 361 205BMW Windshield Washer Concentrate 1 GalAs neededNote: As applicable, do not exceed your state's maximum for the allowable amount/percentage of ""Washer Concentrate"" that can be used when mixing the windshield washer fluid solution. WARRANTY INFORMATION The issue described in this bulletin is not a vehicle-related defect in materials or workmanship. If a vehicle repair is required as a result of this issue, it is are not claimable under a BMW limited warranty."