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.
Wiper functions: Washing
Both rear window and windshield washers work in three phases.
- Prewash: the pump is activated for a certain time and the wipers remain in the parking position
- Washing: the pump and wipers are active for as long as the washer switch is actuated
- After washing; the pump is off and the wipers are active for at least two complete strokes, with an extra stroke three seconds later.
With the lever in position 0 and washer function requested, three phases follow.
If speeds 1, 2, or impulse is active and the washer function is requested, the washer pump is engaged for as long as the switch is active. Return takes place to speeds 1, 2, or impulse.
If interval wiping is active when the washer function is requested, then interval wiping is interrupted and the three phases start. After the three phases have been finished interval wiping resumes.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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