Mercedes Benz 450SL Wiper Relay Costs
The average cost for a Mercedes Benz 450SL Wiper Relay Replacement is between $43 - $80. Get an instant quote with our AI repair estimator.
Image Placeholder
What is a wiper relay?
A wiper relay is an essential electrical component in a vehicle's windshield wiper system. It acts as a switch that modulates the power to the wiper motor, thus controlling the speed and interval of the wipers' operation. The relay ensures that the wipers move across the windshield at the correct speed, whether it's a light drizzle or a heavy downpour. It receives signals from the wiper switch inside the car and transfers these commands to engage the wiper motor effectively. In multi-speed systems, the relay plays a critical role in shifting between various speed settings, thereby enhancing driver visibility and safety in adverse weather conditions.
Symptoms of a faulty wiper relay
A faulty wiper relay can manifest in several noticeable symptoms:
- Non-functional wipers: If the relay fails, the wipers may not activate at all, leaving the windshield uncleared in rain.
- Wipers stuck at one speed: The inability to change wiper speed is a common symptom, regardless of the wiper control settings.
- Erratic wiper behavior: This includes wipers that start and stop unexpectedly, without any input from the driver.
- No intermittent setting: Often, the relay controls the intermittent function, and a fault can cause this feature to stop working.
- Clicking noises from the dashboard: A failing relay could result in audible clicks as it struggles to complete circuits or maintain operation.
How urgent is wiper relay replacement?
Replacing a faulty wiper relay is fairly urgent, especially if you frequently drive in areas prone to rain or snow. Without a functioning relay, your wipers may not operate correctly, severely impacting visibility during adverse weather conditions. This poses a significant safety risk, as clear windshield visibility is critical for safe driving. Immediate attention to a non-functional wiper system helps prevent accidents and ensures the vehicle meets safety standards. Neglecting this repair can lead to more extensive electrical issues that may affect other components of the vehicle.
How much does wiper relay replacement cost?
The cost to replace a wiper relay typically ranges between $50 and $150, depending largely on the make and model of the vehicle and the labor rates in your area. This price includes both parts and labor, as the relay itself is generally inexpensive but can be tricky to access depending on its location in the vehicle's electrical system. Cost can also fluctuate if additional diagnostics are required to confirm the relay is indeed the source of the issue, or if any related components are also in need of repair or replacement.
5 FAQs about wiper relays
- What causes a wiper relay to fail? Corrosion, wear and tear over time, and electrical surges can lead to wiper relay failure. Exposure to moisture or constant toggling of the wiper settings can also contribute to degradation over time.
- Can I replace a wiper relay myself? Replacing a wiper relay can be a DIY task for those familiar with car electronic systems. However, accessing the relay might be challenging in some vehicles, requiring removal of panels or other components.
- How do I know if it's the wiper relay or the wiper motor? While similar symptoms might suggest either component is at fault, testing the relay independently using a multimeter or swapping it with a similar relay from another system can help isolate the fault to the relay itself.
- Are all wiper relays the same? No, wiper relays vary based on the vehicle make, model, and the specific functions of the wiper system. Always ensure you have the correct part by consulting your vehicle's manual or a professional mechanic.
- How often do wiper relays need to be replaced? Wiper relays do not have a set replacement schedule and generally last for many years. Replacement should be based on performance issues rather than a predetermined schedule.
Dev Output
1980 Mercedes Benz 450SL V8-4520cc 4.5L FI - Wiper Relay Costs
Parts: $13.00Labor: $14.00{ "partPrice": 13, "laborPrice": 14, "alldata_id": 25526, "alldata_vehicle_id": 25526, "title": "Wiper Relay", "parts": { "qualifiers": [ { "name": "Impulse Realy - Windshield Wiper", "qualifiers": [ { "name": "450SEL Ch 116.033", "qualifiers": [ { "name": "Chassis 116.033: From Series 012329", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.011", "price": "187.00", "pricecode": "", "partnumber": "1158210063" } ] } ] }, { "name": "California", "qualifiers": [ { "name": "450SEL Ch 116.033", "qualifiers": [ { "name": "Chassis 116.033: to Series 043560", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.011", "price": "187.00", "pricecode": "", "partnumber": "1158210063" } ] }, { "name": "Chassis 116.033: From Series 043561", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.014", "price": "90.00", "pricecode": "", "partnumber": "1238210063" } ] } ] }, { "name": "450SL Ch 107.044", "qualifiers": [ { "name": "Chassis 107.044: From Series 028293", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.014", "price": "90.00", "pricecode": "", "partnumber": "1238210063" } ] } ] }, { "name": "450SLC Ch 107.024", "qualifiers": [ { "name": "Chassis 107.024: From Series 011191", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.014", "price": "90.00", "pricecode": "", "partnumber": "1238210063" } ] } ] } ] }, { "name": "Federal", "qualifiers": [ { "name": "450SEL Ch 116.033", "qualifiers": [ { "name": "Chassis 116.033: to Series 043633", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.011", "price": "187.00", "pricecode": "", "partnumber": "1158210063" } ] }, { "name": "Chassis 116.033: From Series 043640", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.014", "price": "90.00", "pricecode": "", "partnumber": "1238210063" } ] } ] }, { "name": "450SL Ch 107.044", "qualifiers": [ { "name": "Chassis 107.044: From Series 028300", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.014", "price": "90.00", "pricecode": "", "partnumber": "1238210063" } ] } ] }, { "name": "450SLC Ch 107.024", "qualifiers": [ { "name": "Chassis 107.024: From Series 011200", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.014", "price": "90.00", "pricecode": "", "partnumber": "1238210063" } ] } ] } ] } ] } ] }, "labors": { "operations": [ { "operation": "Replace", "qualifiers": [ { "name": "Intermittent Relay", "labor": { "skill": "B", "standardtime": "0.5", "warrantytime": "0.0" }, "qualifiers": [] } ] } ] }, "year": 1980, "make": "Mercedes Benz", "model": "450SL", "engine": "V8-4520cc 4.5L FI" }1979 Mercedes Benz 450SL V8-4520cc 4.5L FI - Wiper Relay Costs
Parts: $29.00Labor: $26.00{ "partPrice": 29, "laborPrice": 26, "alldata_id": 25446, "alldata_vehicle_id": 25446, "title": "Wiper Relay", "parts": { "qualifiers": [ { "name": "Impulse Realy - Windshield Wiper", "qualifiers": [ { "name": "450SEL Ch 116.033", "qualifiers": [ { "name": "Chassis 116.033: From Series 012329", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.011", "price": "187.00", "pricecode": "", "partnumber": "1158210063" } ] } ] }, { "name": "California", "qualifiers": [ { "name": "450SEL Ch 116.033", "qualifiers": [ { "name": "Chassis 116.033: to Series 043560", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.011", "price": "187.00", "pricecode": "", "partnumber": "1158210063" } ] }, { "name": "Chassis 116.033: From Series 043561", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.014", "price": "90.00", "pricecode": "", "partnumber": "1238210063" } ] } ] }, { "name": "450SL Ch 107.044", "qualifiers": [ { "name": "Chassis 107.044: From Series 028293", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.014", "price": "90.00", "pricecode": "", "partnumber": "1238210063" } ] } ] }, { "name": "450SLC Ch 107.024", "qualifiers": [ { "name": "Chassis 107.024: From Series 011191", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.014", "price": "90.00", "pricecode": "", "partnumber": "1238210063" } ] } ] } ] }, { "name": "Federal", "qualifiers": [ { "name": "450SEL Ch 116.033", "qualifiers": [ { "name": "Chassis 116.033: to Series 043633", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.011", "price": "187.00", "pricecode": "", "partnumber": "1158210063" } ] }, { "name": "Chassis 116.033: From Series 043640", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.014", "price": "90.00", "pricecode": "", "partnumber": "1238210063" } ] } ] }, { "name": "450SL Ch 107.044", "qualifiers": [ { "name": "Chassis 107.044: From Series 028300", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.014", "price": "90.00", "pricecode": "", "partnumber": "1238210063" } ] } ] }, { "name": "450SLC Ch 107.024", "qualifiers": [ { "name": "Chassis 107.024: From Series 011200", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.014", "price": "90.00", "pricecode": "", "partnumber": "1238210063" } ] } ] } ] } ] } ] }, "labors": { "operations": [ { "operation": "Replace", "qualifiers": [ { "name": "Intermittent Relay", "labor": { "skill": "B", "standardtime": "0.5", "warrantytime": "0.0" }, "qualifiers": [] } ] } ] }, "year": 1979, "make": "Mercedes Benz", "model": "450SL", "engine": "V8-4520cc 4.5L FI" }1978 Mercedes Benz 450SL V8-4520cc 4.5L FI - Wiper Relay Costs
Parts: $47.00Labor: $51.00{ "partPrice": 47, "laborPrice": 51, "alldata_id": 25394, "alldata_vehicle_id": 25394, "title": "Wiper Relay", "parts": { "qualifiers": [ { "name": "Impulse Realy - Windshield Wiper", "qualifiers": [ { "name": "450SEL Ch 116.033", "qualifiers": [ { "name": "Chassis 116.033: From Series 012329", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.011", "price": "187.00", "pricecode": "", "partnumber": "1158210063" } ] } ] }, { "name": "California", "qualifiers": [ { "name": "450SEL Ch 116.033", "qualifiers": [ { "name": "Chassis 116.033: to Series 043560", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.011", "price": "187.00", "pricecode": "", "partnumber": "1158210063" } ] }, { "name": "Chassis 116.033: From Series 043561", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.014", "price": "90.00", "pricecode": "", "partnumber": "1238210063" } ] } ] }, { "name": "450SL Ch 107.044", "qualifiers": [ { "name": "Chassis 107.044: From Series 028293", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.014", "price": "90.00", "pricecode": "", "partnumber": "1238210063" } ] } ] }, { "name": "450SLC Ch 107.024", "qualifiers": [ { "name": "Chassis 107.024: From Series 011191", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.014", "price": "90.00", "pricecode": "", "partnumber": "1238210063" } ] } ] } ] }, { "name": "Federal", "qualifiers": [ { "name": "450SEL Ch 116.033", "qualifiers": [ { "name": "Chassis 116.033: to Series 043633", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.011", "price": "187.00", "pricecode": "", "partnumber": "1158210063" } ] }, { "name": "Chassis 116.033: From Series 043640", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.014", "price": "90.00", "pricecode": "", "partnumber": "1238210063" } ] } ] }, { "name": "450SL Ch 107.044", "qualifiers": [ { "name": "Chassis 107.044: From Series 028300", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.014", "price": "90.00", "pricecode": "", "partnumber": "1238210063" } ] } ] }, { "name": "450SLC Ch 107.024", "qualifiers": [ { "name": "Chassis 107.024: From Series 011200", "part": [ { "name": "Impulse Relay, Windshield Wiper", "note": "Bosch 0.335.320.014", "price": "90.00", "pricecode": "", "partnumber": "1238210063" } ] } ] } ] } ] } ] }, "labors": { "operations": [ { "operation": "Replace", "qualifiers": [ { "name": "Intermittent Relay", "labor": { "skill": "B", "standardtime": "0.5", "warrantytime": "0.0" }, "qualifiers": [] } ] } ] }, "year": 1978, "make": "Mercedes Benz", "model": "450SL", "engine": "V8-4520cc 4.5L FI" }