Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSBMW2011ALPINA B7LREPAIR AND DIAGNOSISBODY & FRAMEWINDOWSGENERAL VEHICLE ELECTRONICS -- OVERVIEWWIPER/WASHER SYSTEMSYSTEM COMPONENTSINVOLVED COMPONENTSHEATED WASHER JETS

2011 BMW Alpina B7L

Heated Washer Jets

2011 BMW Alpina B7LSECTION Heated Washer Jets

Three heated water jets are used for the windscreen washer. The washer jets have a PTC resistor that automatically limits the power consumption.

Fig 1: PTC Resistor Characteristic Graph

Courtesy of BMW OF NORTH AMERICA, INC.

PTC RESISTOR CHARACTERISTIC

Index	Explanation
1	Characteristic of a resistor
R	Resistance
t	Time

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.