Serpentine/Drive Belt Replacement at your home or office.

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Serpentine/Drive Belt Replacement Estimate for BMW 635CSi

BMW 635CSi Serpentine/Drive Belt Replacement costs $95 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$92 to $105
Labor: $70 -$80
Parts: $22 -$25
Average Dealer price
$136 to 143
Average Shop price
$110 to 115
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Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
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CarServiceYourMechanic PriceShop/Dealer Price
1989 BMW 635CSiL6-3.5LService typeSerpentine/Drive Belt ReplacementYourMechanic Price$97.22Shop/Dealer Price$129.43 - $168.91
1986 BMW 635CSiL6-3.5LService typeSerpentine/Drive Belt ReplacementYourMechanic Price$96.72Shop/Dealer Price$128.93 - $168.11
1985 BMW 635CSiL6-3.5LService typeSerpentine/Drive Belt ReplacementYourMechanic Price$92.90Shop/Dealer Price$124.07 - $160.33
1988 BMW 635CSiL6-3.5LService typeSerpentine/Drive Belt ReplacementYourMechanic Price$96.72Shop/Dealer Price$128.88 - $168.04
1987 BMW 635CSiL6-3.5LService typeSerpentine/Drive Belt ReplacementYourMechanic Price$97.22Shop/Dealer Price$129.45 - $168.94
Show example BMW 635CSi Serpentine/Drive Belt Replacement prices

Serpentine/Drive Belt Replacement Service & Cost

What is the Serpentine/Drive Belt all about?

The serpentine/drive belt or v-belt is a rubber belt that connects the alternator, power steering, and AC to the part of the engine (crankshaft) which transfers the power from the engine to those components. Without this belt, the battery will not get charged and none of the electrical accessory components in the car will work. The serpentine belt and v-belt are also known as "drive belts."

Because of the high amount of heat in the engine, the belt can develop cracks over time and eventually break. If the belt breaks, the steering wheel will be difficult to turn and driving will be hazardous.

In some cars, water pumps are driven by the drive belts. If the belt breaks, water and coolant needed to keep the engine cool will not properly flow to the engine. The engine will overheat, potentially causing severe damage.

Belts

Keep in mind:

A car will either have a serpentine belt(s) or v-belt(s). Cars that have a serpentine belt will have one or two belts. Most modern cars have only one belt, driving all the engine accessory components. If the car has v-belts, it will most likely have four belts.

How it's done:

  • Inspect the belts for cracks.
  • Remove and replace any damaged belts.
  • Inspect pulleys and bearings.

Our recommendation:

A mechanic should inspect the drive belts during oil changes. If you hear a squealing noise from the engine, it is likely that the drive belts need adjustment or replacement.

What common symptoms indicate you may need to replace the Serpentine/Drive Belt?

  • Squealing noise coming from engine if the belt is loose or worn out.
  • Lack of steering if the belt is broken.
  • Battery Warning Light is on.
  • Engine overheats.

How important is this service?

The drive belts connect the engine to the alternator, air conditioning, power steering, and sometimes the water pump. These belts are how power is transferred from the engines to these other systems. When the belts break, the engine will be unable to transfer power to the alternator, air conditioning, and power steering. Since the alternator is responsible for charging your battery, a broken drive belt means that the electrical components won’t work in your vehicle. The power steering also will fail, which makes it difficult and dangerous to steer. If your car’s water pump is also connected to the drive belt then the engine will not have a properly functioning cooling system, and your vehicle will be likely to overheat.

Fast and easy Serpentine/Drive Belt Replacement service at your home or office.

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Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

331 reviews
Jamahl
15 years of experience
I needed a Pre-purchase Inspection on a BMW E85 Z4 3.0si, and since the top motor was being replaced it needed to be a the dealership where the car is located. Jamahl called to say he arrived early, but I missed the call. He called me again after it was completed, and basically confirmed my thoughts on the car, besides cosmetic things it was in very good condition. It's getting new tires and softtop motor, and Inspection II is due which I already due. The dealership tech said he was cordial, efficient and professional. Those are hallmarks of an excellent technician. At the end my phone consult with Jamahl, I asked him if I can request him going forward to work on my Z4, he agreed and told me the steps required for it. I will request his services going forward. Excellent service.
2007 BMW Z4 - PRE-PURCHASE CAR INSPECTION
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283 reviews
Patrick
27 years of experience
He seems professional. I paid for the lights to be addressed and they are all still on including a low engine oil light. He said he would return to check it out further after his next appointment but I did not hear back from him. I was told by BMW that the power steering fluid needs to be drained, flushed and refilled. He sucked it out with a hose twice and this will not ensure that the oil that was accidentally placed in there would be completely removed. I am no mechanic but I am going off of what BMW told me. I wanted to get a lot more work done. I want all the lights to be addressed and fixed so I started with the check engine lights to be looked at and not just reset. I want everything to be fixed. Thank you
2005 BMW 645CI - OIL CHANGE
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282 reviews
Mark
6 years of experience
Mark did a full inspection and took time to explain everything that he is going to perform on the car and answered patiently to all my questions, did the repair on time. Definitely he saved me a lot of dollars..Great price. Informed me of every change in the estimate..He is very honest and trustworthy..I will continue to be a customer of Mark and will tell everyone about the YourMechanic experience..
2008 BMW 335I - SERPENTINE/DRIVE BELT REPLACEMENT
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54 reviews
Peter
22 years of experience
Just paid him for basically something I already knew , waste of time and money, save ur money !?
2008 BMW X5 - POWER STEERING FLUID IS LEAKING INSPECTION
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Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
1989 BMW 635CSiL6-3.5LService typeSerpentine/Drive Belt ReplacementYourMechanic Price$97.22Shop/Dealer Price$129.43 - $168.91
1986 BMW 635CSiL6-3.5LService typeSerpentine/Drive Belt ReplacementYourMechanic Price$96.72Shop/Dealer Price$128.93 - $168.11
1985 BMW 635CSiL6-3.5LService typeSerpentine/Drive Belt ReplacementYourMechanic Price$92.90Shop/Dealer Price$124.07 - $160.33
1988 BMW 635CSiL6-3.5LService typeSerpentine/Drive Belt ReplacementYourMechanic Price$96.72Shop/Dealer Price$128.88 - $168.04
1987 BMW 635CSiL6-3.5LService typeSerpentine/Drive Belt ReplacementYourMechanic Price$97.22Shop/Dealer Price$129.45 - $168.94
Show example BMW 635CSi Serpentine/Drive Belt Replacement prices

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