The average cost for a Mercedes Benz CLA 250 (117.344) Alternator Pulley / Clutch Replacement is between $56 - $104. Get an instant quote with our AI repair estimator.
An alternator pulley clutch, also known simply as an alternator clutch or one-way clutch pulley, is a component within the automotive charging system. It is attached to the alternator and helps manage the belt-driven alternator's operation. The primary function of this clutch is to allow the alternator to continue spinning freely when the engine speed decreases, such as during deceleration or when shifting gears in a manual transmission vehicle. This functionality helps reduce stress on the drive belt and the alternator itself, minimizing vibrations and increasing the lifespan of the alternator and the serpentine belt. By enabling smoother transitions in power delivery, it contributes to overall vehicle efficiency and longevity.
When an alternator pulley clutch is failing, several symptoms may arise. Initially, drivers might notice unusual noises such as whining or grinding sounds from the engine bay, particularly when the engine is idle or during acceleration. This is often due to increased tension and friction as the faulty clutch disrupts the normal motion of the belt system. Additionally, the serpentine belt might show premature wear or signs of slippage, as the failing clutch cannot absorb speed variations effectively. Another common symptom is inconsistent electrical performance. Since the alternator is responsible for charging the battery and powering electrical systems, a malfunctioning pulley clutch could lead to undercharging or fluctuating electrical outputs, which might manifest as dimming headlights or erratic functioning of electrical accessories such as the dashboard lights and infotainment system. If the clutch fails completely, it could lead to the alternator not functioning properly, eventually resulting in battery drain and vehicle malfunction.
Replacing a faulty alternator pulley clutch should be considered a moderately urgent task. While it may not cause immediate vehicle breakdown, neglecting replacement could lead to further complications. A damaged pulley clutch can accelerate wear on the serpentine belt and cause inefficient alternator operation, compromising battery health and leading to potential electrical failures. In extreme cases, it might result in a complete alternator failure. To maintain vehicle performance and avoid more costly repairs, it's advisable to address the issue at the earliest convenience.
The cost of replacing an alternator pulley clutch can vary depending on the make and model of your vehicle and the cost of labor. On average, the part itself can range from $30 to $70. However, labor costs tend to be a larger component of the expense, potentially reaching $100 to $150, depending on the vehicle’s layout and accessibility of the alternator. In total, the replacement might cost between $150 and $250 at a professional repair shop. It's always a good idea to get multiple quotes from different service providers to ensure a fair price.
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2016 Mercedes Benz CLA 250 (117.344) L4-2.0L Turbo (270.920) - Alternator Pulley / Clutch Costs
Parts: $11.00Labor: $17.00{ "partPrice": 11, "laborPrice": 17, "alldata_id": 55868, "alldata_vehicle_id": 55868, "title": "Alternator Pulley / Clutch", "parts": { "qualifiers": [ { "name": "Alternator", "qualifiers": [ { "name": "Pulley", "part": [ { "name": "2 - Pulley", "price": "200.00", "pricecode": "", "partnumber": "2701550315" } ] } ] } ] }, "labors": { "operations": [ { "operation": "Remove & Replace", "qualifiers": [ { "name": "Alternator", "qualifiers": [ { "name": "Pulley, R&R", "labor": { "skill": "C", "standardtime": "0.7", "warrantytime": "0.0" }, "qualifiers": [] } ] } ] } ] }, "year": 2016, "make": "Mercedes Benz", "model": "CLA 250 (117.344)", "engine": "L4-2.0L Turbo (270.920)" }2015 Mercedes Benz CLA 250 (117.344) L4-2.0L Turbo (270.920) - Alternator Pulley / Clutch Costs
Parts: $62.00Labor: $69.00{ "partPrice": 62, "laborPrice": 69, "alldata_id": 55263, "alldata_vehicle_id": 55263, "title": "Alternator Pulley / Clutch", "parts": { "qualifiers": [ { "name": "Alternator", "qualifiers": [ { "name": "Pulley", "part": [ { "name": "2 - Pulley", "price": "200.00", "pricecode": "", "partnumber": "2701550315" } ] } ] } ] }, "labors": { "operations": [ { "operation": "Remove & Replace", "qualifiers": [ { "name": "Alternator", "qualifiers": [ { "name": "Pulley, R&R", "labor": { "skill": "C", "standardtime": "0.7", "warrantytime": "0.0" }, "qualifiers": [] } ] } ] } ] }, "year": 2015, "make": "Mercedes Benz", "model": "CLA 250 (117.344)", "engine": "L4-2.0L Turbo (270.920)" }2014 Mercedes Benz CLA 250 (117.344) L4-2.0L Turbo (270.920) - Alternator Pulley / Clutch Costs
Parts: $54.00Labor: $23.00{ "partPrice": 54, "laborPrice": 23, "alldata_id": 54050, "alldata_vehicle_id": 54050, "title": "Alternator Pulley / Clutch", "parts": { "qualifiers": [ { "name": "Alternator", "qualifiers": [ { "name": "Pulley", "part": [ { "name": "2 - Pulley", "price": "200.00", "pricecode": "", "partnumber": "2701550315" } ] } ] } ] }, "labors": { "operations": [ { "operation": "Remove & Replace", "qualifiers": [ { "name": "Alternator", "qualifiers": [ { "name": "Pulley, R&R", "labor": { "skill": "C", "standardtime": "0.7", "warrantytime": "0.0" }, "qualifiers": [] } ] } ] } ] }, "year": 2014, "make": "Mercedes Benz", "model": "CLA 250 (117.344)", "engine": "L4-2.0L Turbo (270.920)" }