BMW 650i Serpentine/Drive Belt Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(62)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(62)

Serpentine/Drive Belt Replacement Service

How much does a Serpentine/Drive Belt Replacement cost?

On average, the cost for a BMW 650i Serpentine/Drive Belt Replacement is $173 with $33 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2008 BMW 650iV8-4.8LService typeSerpentine/Drive Belt ReplacementEstimate$245.02Shop/Dealer Price$273.83 - $346.07
2007 BMW 650iV8-4.8LService typeSerpentine/Drive Belt ReplacementEstimate$236.01Shop/Dealer Price$261.72 - $331.65
2012 BMW 650iV8-4.4L TurboService typeSerpentine/Drive Belt ReplacementEstimate$446.35Shop/Dealer Price$471.51 - $527.94
2013 BMW 650iV8-4.4L TurboService typeSerpentine/Drive Belt ReplacementEstimate$455.81Shop/Dealer Price$483.33 - $546.85
2006 BMW 650iV8-4.8LService typeSerpentine/Drive Belt ReplacementEstimate$236.01Shop/Dealer Price$264.34 - $336.23
2010 BMW 650iV8-4.8LService typeSerpentine/Drive Belt ReplacementEstimate$236.01Shop/Dealer Price$262.01 - $332.15
2014 BMW 650iV8-4.4L TurboService typeSerpentine/Drive Belt ReplacementEstimate$455.81Shop/Dealer Price$483.40 - $546.97
2016 BMW 650iV8-4.4L TurboService typeSerpentine/Drive Belt ReplacementEstimate$446.35Shop/Dealer Price$471.50 - $527.93
Show example BMW 650i Serpentine/Drive Belt Replacement prices

What is a serpentine belt and how does it work?

A serpentine belt is a relatively long, flat, multi-ribbed belt that is driven by the engine’s crankshaft pulley. The belt drives many, and often all, of the engine accessories such as the alternator, air conditioning compressor, power steering pump, water pump, and air pump. The serpentine belt is tensioned by a hydraulic or spring-loaded automatic tensioner. Some older cars use a serpentine belt to drive most accessories but will also have a shorter v-style belt to drive, for example, the power steering pump.

Belts

When to consider replacing the serpentine belt:

  • Regularly scheduled maintenance. Typically, belt manufacturers recommend belt replacement at 90,000 miles. However, the belt must be inspected for wear or damage at regular intervals prior to this high mileage.
  • Squealing noise, belt slippage, visible belt damage. Should the belt fail or wear out prematurely, you may hear noise or you may see visible signs of deterioration such as missing chunks of rubber, excessive cracking, or a shredded appearance on the edge of the belt.
  • Battery Light. A loose belt, perhaps caused by a defective tensioner, may not drive the alternator at adequate speed and thus the battery may discharge, causing the warning light to illuminate.
  • Engine overheating. Often, the serpentine belt drives the water pump. In those applications, if the belt breaks the engine will overheat in seconds to minutes. If the belt is inadequately tensioned, you may notice higher-than-normal engine operating temperature.

How do mechanics replace the serpentine belt?

  • Prior to removing the belt, the mechanic must run the engine to determine if the idler pulley and the belt tensioner are noise-free. Those rotating components have grease filled bearings and are subject to wear. In addition, the mechanic will ensure that all pulleys and accessories are turning in the same plane. These steps help make sure your new belt will operate trouble-free for its full-service life.
  • The belt’s routing path through the various components is noted. The belt tensioner is released, usually with a wrench or lever, to release the tension from the belt. With the tension off, the belt slides off the pulleys.
  • All rotating components — that is the alternator, air conditioner compressor, etc. — are checked for smooth operation and no noise.
  • If everything checks out, the new belt is slipped over all of the pulleys while holding the tensioner away from the belt. Once the belt is centered on all pulleys, the tensioner is released and the installation is complete. The engine is run to ensure normal operation.

Is it safe to drive with a serpentine belt problem?

No. Should the belt have visible damage, you risk unexpected and sudden breakage that could potentially leave you stranded. Serpentine belt problems that result in the alternator not charging may cause the battery to discharge, which will result in loss of electrical power to the vehicle. Additionally, if a deteriorated belt breaks and that belt drives the water pump, the engine will overheat in a matter of seconds.

When replacing the serpentine belt keep in mind:

  • On many cars, the expected service life of a serpentine belt is around 90,000 miles. Should the belt fail well prior to that, a very careful inspection should be performed to check for out-of-alignment pulleys, a possibly out-of-position crankshaft harmonic balancer on which the drive pulley is mounted, binding pulleys, or a defective belt tensioner.
  • Attention should always be given to serpentine belt routing, since proper routing is critical to proper belt tension, and function of the driven components.
  • Sometimes it is difficult to distinguish serpentine belt related noise from other engine noises. In these cases, a mechanic will determine the origin of the noise by momentarily running the engine without the serpentine belt attached.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(62)

Rating Summary
58
0
3
0
1
58
0
3
0
1

Eddie

39 years of experience
28 reviews
Eddie
39 years of experience
650i 2008 - Thermostat - Eagle, ID
Eddie was great showed up in time, let me know everything that was going on. Took the time to get everything replaced correctly, cleaned up afterwards and pleasant person to talk to. Will definitely use this service again if I need it. Will ask for Eddie

Maurice

20 years of experience
39 reviews
Maurice
20 years of experience
650i 2007 - Oil Change - Johns Island, SC
Very professional and personable manner. Maurice went right to work got the job done quickly and through. I was very pleased with the work and his knowledge of my BMW 650i.

Jeffrey

14 years of experience
83 reviews
Jeffrey
14 years of experience
650i 2007 - Fuel Pump - Dunedin, FL
Awesome. Very professional

Rafael

25 years of experience
65 reviews
Rafael
25 years of experience
650i 2008 - Coolant is leaking - Pittsburg, CA
Great experience, very knowledgeable, and good recommendations.

Excellent Rating

(62)

Rating Summary
58
0
3
0
1
58
0
3
0
1
Number of BMW 650i services completed
682+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1200+
experts on our platform

Recent articles & questions

A Buyer’s Guide to the 2012 Chevrolet Silverado
While While the Ford F-150 is still the best-selling pickup truck in the US, the 2012 Chevrolet Silverado is one of the finest half-ton pickups available today. In fact, the Silverado and the GMC Sierra are actually the same vehicle...
How to Replace a Refrigerant Pressure Sensor
The air conditioning system has a refrigerant pressure sensor that goes bad when the air conditioning does not work or only works intermittently.
The Best Used Cars to Buy for Families
If If it’s time for you to search for the top used cars specifically for families, check out the list we’ve put together of the top five. The list of must-haves Typical items that families are looking for in their...

What does the charging system Warning Light mean in a 2012 Ford Explorer?

The charging system Warning Light is located on the instrument panel. This light illuminates when your vehicle’s battery is not charging properly. It’s important to have this issue resolved quickly, or else your battery may not be able to charge,...

Advice on how to become a mechanic

I learned from my grandfather who was a mechanic. I started when I was 14, but he wouldn't teach me anything, he'd only let me watch. Over time I practiced and figured things out myself. Today, you can learn a...

I put a cold air intake on my car I have replace the O2 sensor that is failing area code p0151 I'm not sure what to do mass is new

Hello. If the P0151 (https://www.yourmechanic.com/article/p0151-obd-ii-trouble-code-o2-sensor-circuit-low-voltage-bank-2-sensor-1-by-jay-safford) code persists after replacing the oxygen sensor, then it may be possible that the issue is with the wiring. If there is any damage or wear to the oxygen sensor connector or wiring there may...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com