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The BMW 540 windshield washer fluid reservoir usually cracks due to the high heat in the engine compartment. The BMW dealer usually wants a very high price for the basic piece of plastic that should last more than a few years. In most cases we sell the factory BMW 540 updated washer fluid reservoirs that are more resistant to cracking.
The BMW 540 washer pump can fail, and when it does, you will need to replace it immediately as it is considered a safety item for your BMW 540. Most washer pumps are easily replicable by removing the reservoir. We carry the same BMW 540 windshield washer pumps as you would get at the dealer; we also carry the OE and aftermarket brands.
Replace your BMW 540 wiper blades every year or 15,000 miles. You should replace the BMW 540 wiper blades in sets and typically the Fall is the best time of the year for installing new BMW wiper baldes
The BMW 540 wiper motor is located just in front of the windshield, in the heater wiper motor tray. The BMW 540 wiper motor typically fails due to moisture getting into the stator mechanism and rusting the contacts. As a BMW 540 wiper motor is starting to fail you will see the wiper blades intermittently stop across the windshield.