BMW 633CSi (E24) Brake Master Cylinder Costs
The average cost for a BMW 633CSi (E24) Brake Master Cylinder Replacement is between $56 - $105. Get an instant quote with our AI repair estimator.
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What is a brake master cylinder?
The brake master cylinder is a critical component of a vehicle's braking system, acting as the primary piston that converts the force from the driver's foot pressing the brake pedal into hydraulic pressure. This pressure is then transmitted through the brake lines to the brake calipers or wheel cylinders at each wheel, which in turn squeeze the brake pads against the discs or drums to slow down or stop the vehicle. Typically located in the engine bay adjacent to the firewall, the master cylinder is equipped with a reservoir that holds the brake fluid. This component ensures that hydraulic pressure is evenly distributed, enabling smooth and reliable braking performance.
Symptoms of a failing brake master cylinder
A failing brake master cylinder can compromise the safety and performance of your vehicle’s braking system. One of the most common symptoms is a spongy or mushy brake pedal feel, indicating a potential internal leak or air in the brake lines. Another sign is when the brake pedal slowly sinks to the floor while maintaining constant pressure, which can also suggest a seal failure within the master cylinder. In some cases, you might notice brake fluid leaks around the master cylinder or the reservoir, often resulting in visible fluid on the ground under your vehicle. Additionally, if your vehicle takes longer to stop, or you notice a decrease in braking power, the master cylinder might be failing. Unusual brake warning lights on your dashboard could also point to issues with the brake master cylinder. If you notice any of these symptoms, it's crucial to have your vehicle inspected by a professional mechanic.
How urgent is brake master cylinder repair?
Repairing or replacing a failing brake master cylinder is extremely urgent and should not be delayed. A compromised master cylinder can lead to a significant loss of braking power, thereby increasing the risk of an accident. If you suspect any issues with your brake master cylinder, it is essential to have a professional inspect and address the problem immediately. Driving with a failing master cylinder compromises the safety of not only the driver and passengers but also other road users.
How much does brake master cylinder replacement cost?
The cost of replacing a brake master cylinder can vary depending on the make and model of the vehicle, as well as labor rates in your area. On average, the replacement cost can range from $250 to $550, with parts typically costing between $100 and $300. Labor costs can add another $150 to $250 to the total bill. Always consider obtaining multiple quotes from mechanics to ensure a fair price, and remember that investing in quality parts and skilled labor can ensure the reliability and safety of your vehicle's braking system.
5 FAQs about brake master cylinders
- What causes a brake master cylinder to fail?
The most common causes of brake master cylinder failure include worn out seals, contamination of brake fluid, and normal wear and tear over time. Exposure to moisture can also lead to internal corrosion, affecting the master cylinder's efficiency. - Can I still drive my car if the brake master cylinder is failing?
Driving with a failing brake master cylinder is not recommended due to the increased risk of brake failure. If you suspect any issues, have the vehicle inspected and repaired immediately to avoid dangerous driving conditions. - How often should the brake master cylinder be replaced?
There isn't a specific interval for replacing the brake master cylinder. However, it typically lasts several years under normal conditions. Regular brake system inspections can help identify issues early before they become severe. - What happens if I don't replace a bad brake master cylinder?
Neglecting to replace a failing brake master cylinder can result in a complete loss of braking ability, significantly increasing the risk of an accident. It's crucial to address any brake issues promptly to ensure road safety. - How can I maintain my brake master cylinder?
Regularly checking and replacing brake fluid, avoiding contamination, and ensuring your vehicle gets routine brake inspections can help maintain the condition of the brake master cylinder and the whole braking system.
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1984 BMW 633CSi (E24) L6-3210cc 3.2L SOHC (M30) - Brake Master Cylinder Costs
Parts: $32.00Labor: $32.00{ "partPrice": 32, "laborPrice": 32, "alldata_id": 2798, "alldata_vehicle_id": 2798, "title": "Brake Master Cylinder", "parts": { "qualifiers": [ { "name": "Brake Fluid Reservoir", "part": [ { "name": "Expansion Tank Ate", "price": "693.47", "pricecode": "", "partnumber": "34321151729" } ] }, { "name": "Master Cylinder", "qualifiers": [ { "name": "From 09/82 to 09/84", "part": [ { "name": "Brake Master Cylinder 23.81mm Ate", "price": "1505.41", "pricecode": "", "partnumber": "34311153053" } ] }, { "name": "W/ ABS", "part": [ { "name": "Brake Master Cylinder 23.81mm Ate", "price": "1110.16", "pricecode": "", "partnumber": "34311155270" } ] } ] }, { "name": "Master Cylinder Cap", "qualifiers": [ { "name": "W/Warning Switch ATE", "part": [ { "name": "Cap With Warning Switch Ate", "price": "115.77", "pricecode": "", "partnumber": "34321120841" } ] } ] }, { "name": "Master Cylinder Repair Kit", "qualifiers": [ { "name": "From 09/82 to 09/84", "part": [ { "name": "Repair Kit Brake Master Cylinder Ate", "price": "248.95", "pricecode": "", "partnumber": "34311154030" } ] } ] } ] }, "labors": { "operations": [ { "operation": "Replace", "qualifiers": [ { "name": "Master Cylinder", "labor": { "note": "Includes: Bleed System. ", "skill": "B", "standardtime": "1.2", "warrantytime": "0.7" }, "qualifiers": [] } ] }, { "operation": "Overhaul/Rebuild", "qualifiers": [ { "name": "Master Cylinder", "labor": { "note": "After Master Cylinder Is Removed. ", "skill": "B", "standardtime": "0.5", "warrantytime": "0.2" }, "qualifiers": [] } ] } ] }, "year": 1984, "make": "BMW", "model": "633CSi (E24)", "engine": "L6-3210cc 3.2L SOHC (M30)" }1983 BMW 633CSi (E24) L6-3210cc 3.2L SOHC (M30) - Brake Master Cylinder Costs
Parts: $49.00Labor: $5.00{ "partPrice": 49, "laborPrice": 5, "alldata_id": 2792, "alldata_vehicle_id": 2792, "title": "Brake Master Cylinder", "parts": { "qualifiers": [ { "name": "Brake Fluid Reservoir", "qualifiers": [ { "name": "From 09/78 to 09/82", "part": [ { "name": "Expansion Tank", "price": "693.47", "pricecode": "", "partnumber": "34321151729" } ] }, { "name": "From 09/82", "part": [ { "name": "Expansion Tank Ate", "price": "693.47", "pricecode": "", "partnumber": "34321151729" } ] } ] }, { "name": "Master Cylinder", "qualifiers": [ { "name": "From 09/78 to 09/82", "part": [ { "name": "Brake Master Cylinder D=23.81mm", "price": "419.15", "pricecode": "", "partnumber": "34311120832" } ] }, { "name": "From 09/82 to 09/84", "part": [ { "name": "Brake Master Cylinder 23.81mm Ate", "price": "1505.41", "pricecode": "", "partnumber": "34311153053" } ] }, { "name": "W/ ABS", "qualifiers": [ { "name": "From 09/82", "part": [ { "name": "Brake Master Cylinder 23.81mm Ate", "price": "1110.16", "pricecode": "", "partnumber": "34311155270" } ] } ] } ] }, { "name": "Master Cylinder Cap", "qualifiers": [ { "name": "W/Warning Switch ATE", "qualifiers": [ { "name": "From 09/78 to 09/82", "part": [ { "name": "Cap With Warning Switch Ate", "price": "115.77", "pricecode": "", "partnumber": "34321120841" } ] }, { "name": "From 09/82", "part": [ { "name": "Cap With Warning Switch Ate", "price": "115.77", "pricecode": "", "partnumber": "34321120841" } ] } ] } ] }, { "name": "Master Cylinder Repair Kit", "qualifiers": [ { "name": "To 09/82", "part": [ { "name": "Repair Kit Brake Master Cylinder D=23.81mm", "price": "351.18", "pricecode": "", "partnumber": "34311103743" } ] }, { "name": "From 09/82 to 09/84", "part": [ { "name": "Repair Kit Brake Master Cylinder Ate", "price": "248.95", "pricecode": "", "partnumber": "34311154030" } ] } ] } ] }, "labors": { "operations": [ { "operation": "Replace", "qualifiers": [ { "name": "Master Cylinder", "labor": { "note": "Includes: Bleed System. ", "skill": "B", "standardtime": "1.2", "warrantytime": "0.0" }, "qualifiers": [] } ] }, { "operation": "Overhaul/Rebuild", "qualifiers": [ { "name": "Master Cylinder", "labor": { "note": "After Master Cylinder Is Removed. ", "skill": "B", "standardtime": "0.5", "warrantytime": "0.0" }, "qualifiers": [] } ] } ] }, "year": 1983, "make": "BMW", "model": "633CSi (E24)", "engine": "L6-3210cc 3.2L SOHC (M30)" }1982 BMW 633CSi (E24) L6-3210cc 3.2L SOHC (M30) - Brake Master Cylinder Costs
Parts: $12.00Labor: $69.00{ "partPrice": 12, "laborPrice": 69, "alldata_id": 2786, "alldata_vehicle_id": 2786, "title": "Brake Master Cylinder", "parts": { "qualifiers": [ { "name": "Brake Fluid Reservoir", "qualifiers": [ { "name": "From 09/78 to 09/82", "part": [ { "name": "Expansion Tank", "price": "693.47", "pricecode": "", "partnumber": "34321151729" } ] }, { "name": "From 09/82", "part": [ { "name": "Expansion Tank Ate", "price": "693.47", "pricecode": "", "partnumber": "34321151729" } ] } ] }, { "name": "Master Cylinder", "qualifiers": [ { "name": "From 09/78 to 09/82", "part": [ { "name": "Brake Master Cylinder D=23.81mm", "price": "419.15", "pricecode": "", "partnumber": "34311120832" } ] }, { "name": "From 09/82 to 09/84", "part": [ { "name": "Brake Master Cylinder 23.81mm Ate", "price": "1505.41", "pricecode": "", "partnumber": "34311153053" } ] }, { "name": "W/ ABS", "qualifiers": [ { "name": "From 09/82", "part": [ { "name": "Brake Master Cylinder 23.81mm Ate", "price": "1110.16", "pricecode": "", "partnumber": "34311155270" } ] } ] } ] }, { "name": "Master Cylinder Cap", "qualifiers": [ { "name": "W/Warning Switch ATE", "qualifiers": [ { "name": "From 09/78 to 09/82", "part": [ { "name": "Cap With Warning Switch Ate", "price": "115.77", "pricecode": "", "partnumber": "34321120841" } ] }, { "name": "From 09/82", "part": [ { "name": "Cap With Warning Switch Ate", "price": "115.77", "pricecode": "", "partnumber": "34321120841" } ] } ] } ] }, { "name": "Master Cylinder Repair Kit", "qualifiers": [ { "name": "To 09/82", "part": [ { "name": "Repair Kit Brake Master Cylinder D=23.81mm", "price": "351.18", "pricecode": "", "partnumber": "34311103743" } ] }, { "name": "From 09/82 to 09/84", "part": [ { "name": "Repair Kit Brake Master Cylinder Ate", "price": "248.95", "pricecode": "", "partnumber": "34311154030" } ] } ] } ] }, "labors": { "operations": [ { "operation": "Replace", "qualifiers": [ { "name": "Master Cylinder", "labor": { "note": "Includes: Bleed System. ", "skill": "B", "standardtime": "1.2", "warrantytime": "0.0" }, "qualifiers": [] } ] }, { "operation": "Overhaul/Rebuild", "qualifiers": [ { "name": "Master Cylinder", "labor": { "note": "After Master Cylinder Is Removed. ", "skill": "B", "standardtime": "0.5", "warrantytime": "0.0" }, "qualifiers": [] } ] } ] }, "year": 1982, "make": "BMW", "model": "633CSi (E24)", "engine": "L6-3210cc 3.2L SOHC (M30)" }1981 BMW 633CSi (E24) L6-3210cc 3.2L SOHC (M30) - Brake Master Cylinder Costs
Parts: $51.00Labor: $81.00{ "partPrice": 51, "laborPrice": 81, "alldata_id": 2782, "alldata_vehicle_id": 2782, "title": "Brake Master Cylinder", "parts": { "qualifiers": [ { "name": "Brake Fluid Reservoir", "part": [ { "name": "Expansion Tank", "price": "693.47", "pricecode": "", "partnumber": "34321151729" } ] }, { "name": "Master Cylinder", "part": [ { "name": "Brake Master Cylinder D=23.81mm", "price": "419.15", "pricecode": "", "partnumber": "34311120832" } ] }, { "name": "Master Cylinder Cap", "qualifiers": [ { "name": "W/Warning Switch ATE", "part": [ { "name": "Cap With Warning Switch Ate", "price": "115.77", "pricecode": "", "partnumber": "34321120841" } ] } ] }, { "name": "Master Cylinder Repair Kit", "part": [ { "name": "Repair Kit Brake Master Cylinder D=23.81mm", "price": "351.18", "pricecode": "", "partnumber": "34311103743" } ] } ] }, "labors": { "operations": [ { "operation": "Replace", "qualifiers": [ { "name": "Master Cylinder", "labor": { "note": "Includes: Bleed System. ", "skill": "B", "standardtime": "1.2", "warrantytime": "0.0" }, "qualifiers": [] } ] }, { "operation": "Overhaul/Rebuild", "qualifiers": [ { "name": "Master Cylinder", "labor": { "note": "After Master Cylinder Is Removed. ", "skill": "B", "standardtime": "0.5", "warrantytime": "0.0" }, "qualifiers": [] } ] } ] }, "year": 1981, "make": "BMW", "model": "633CSi (E24)", "engine": "L6-3210cc 3.2L SOHC (M30)" }1980 BMW 633CSi (E24) L6-3210cc 3.2L SOHC (M30) - Brake Master Cylinder Costs
Parts: $34.00Labor: $3.00{ "partPrice": 34, "laborPrice": 3, "alldata_id": 2778, "alldata_vehicle_id": 2778, "title": "Brake Master Cylinder", "parts": { "qualifiers": [ { "name": "Brake Fluid Reservoir", "part": [ { "name": "Expansion Tank", "price": "693.47", "pricecode": "", "partnumber": "34321151729" } ] }, { "name": "Master Cylinder", "part": [ { "name": "Brake Master Cylinder D=23.81mm", "price": "419.15", "pricecode": "", "partnumber": "34311120832" } ] }, { "name": "Master Cylinder Cap", "qualifiers": [ { "name": "W/Warning Switch ATE", "part": [ { "name": "Cap With Warning Switch Ate", "price": "115.77", "pricecode": "", "partnumber": "34321120841" } ] } ] }, { "name": "Master Cylinder Repair Kit", "part": [ { "name": "Repair Kit Brake Master Cylinder D=23.81mm", "price": "351.18", "pricecode": "", "partnumber": "34311103743" } ] } ] }, "labors": { "operations": [ { "operation": "Replace", "qualifiers": [ { "name": "Master Cylinder", "labor": { "note": "Includes: Bleed System. ", "skill": "B", "standardtime": "1.2", "warrantytime": "0.0" }, "qualifiers": [] } ] }, { "operation": "Overhaul/Rebuild", "qualifiers": [ { "name": "Master Cylinder", "labor": { "note": "After Master Cylinder Is Removed. ", "skill": "B", "standardtime": "0.5", "warrantytime": "0.0" }, "qualifiers": [] } ] } ] }, "year": 1980, "make": "BMW", "model": "633CSi (E24)", "engine": "L6-3210cc 3.2L SOHC (M30)" }1979 BMW 633CSi (E24) L6-3210cc 3.2L SOHC (M30) - Brake Master Cylinder Costs
Parts: $54.00Labor: $47.00{ "partPrice": 54, "laborPrice": 47, "alldata_id": 2774, "alldata_vehicle_id": 2774, "title": "Brake Master Cylinder", "parts": { "qualifiers": [ { "name": "Brake Fluid Reservoir", "qualifiers": [ { "name": "From 09/78 to 09/82", "part": [ { "name": "Expansion Tank", "price": "693.47", "pricecode": "", "partnumber": "34321151729" } ] } ] }, { "name": "Master Cylinder", "qualifiers": [ { "name": "From 09/78 to 09/82", "part": [ { "name": "Brake Master Cylinder D=23.81mm", "price": "419.15", "pricecode": "", "partnumber": "34311120832" } ] } ] }, { "name": "Master Cylinder Cap", "qualifiers": [ { "name": "W/Warning Switch ATE", "qualifiers": [ { "name": "From 09/78 to 09/82", "part": [ { "name": "Cap With Warning Switch Ate", "price": "115.77", "pricecode": "", "partnumber": "34321120841" } ] } ] } ] }, { "name": "Master Cylinder Repair Kit", "part": [ { "name": "Repair Kit Brake Master Cylinder D=23.81mm", "price": "351.18", "pricecode": "", "partnumber": "34311103743" } ] } ] }, "labors": { "operations": [ { "operation": "Replace", "qualifiers": [ { "name": "Master Cylinder", "labor": { "note": "Includes: Bleed System. ", "skill": "B", "standardtime": "1.2", "warrantytime": "0.0" }, "qualifiers": [] } ] }, { "operation": "Overhaul/Rebuild", "qualifiers": [ { "name": "Master Cylinder", "labor": { "note": "After Master Cylinder Is Removed. ", "skill": "B", "standardtime": "0.5", "warrantytime": "0.0" }, "qualifiers": [] } ] } ] }, "year": 1979, "make": "BMW", "model": "633CSi (E24)", "engine": "L6-3210cc 3.2L SOHC (M30)" }1978 BMW 633CSi (E24) L6-3210cc 3.2L SOHC (M30) - Brake Master Cylinder Costs
Parts: $22.00Labor: $63.00{ "partPrice": 22, "laborPrice": 63, "alldata_id": 2770, "alldata_vehicle_id": 2770, "title": "Brake Master Cylinder", "parts": { "qualifiers": [ { "name": "Brake Fluid Reservoir", "qualifiers": [ { "name": "From 09/78 to 09/82", "part": [ { "name": "Expansion Tank", "price": "693.47", "pricecode": "", "partnumber": "34321151729" } ] } ] }, { "name": "Master Cylinder", "qualifiers": [ { "name": "From 09/78 to 09/82", "part": [ { "name": "Brake Master Cylinder D=23.81mm", "price": "419.15", "pricecode": "", "partnumber": "34311120832" } ] } ] }, { "name": "Master Cylinder Cap", "qualifiers": [ { "name": "W/Warning Switch ATE", "qualifiers": [ { "name": "From 09/78 to 09/82", "part": [ { "name": "Cap With Warning Switch Ate", "price": "115.77", "pricecode": "", "partnumber": "34321120841" } ] } ] } ] }, { "name": "Master Cylinder Repair Kit", "part": [ { "name": "Repair Kit Brake Master Cylinder D=23.81mm", "price": "351.18", "pricecode": "", "partnumber": "34311103743" } ] } ] }, "labors": { "operations": [ { "operation": "Replace", "qualifiers": [ { "name": "Master Cylinder", "labor": { "note": "Includes: Bleed System. ", "skill": "B", "standardtime": "1.2", "warrantytime": "0.0" }, "qualifiers": [] } ] }, { "operation": "Overhaul/Rebuild", "qualifiers": [ { "name": "Master Cylinder", "labor": { "note": "After Master Cylinder Is Removed. ", "skill": "B", "standardtime": "0.5", "warrantytime": "0.0" }, "qualifiers": [] } ] } ] }, "year": 1978, "make": "BMW", "model": "633CSi (E24)", "engine": "L6-3210cc 3.2L SOHC (M30)" }