logo

BMW 840i Adjust Drive Belts 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

(6,667)

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.

See availability

Customer Ratings

(6,667)

Adjust Drive Belts Service

How much does a Adjust Drive Belts cost?

On average, the cost for a BMW 840i Adjust Drive Belts is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2020 BMW 840iL6-3.0L TurboService typeAdjust Drive BeltsEstimate$114.99Shop/Dealer Price$124.99 - $132.49
2021 BMW 840iL6-3.0L TurboService typeAdjust Drive BeltsEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2022 BMW 840iL6-3.0L TurboService typeAdjust Drive BeltsEstimate$94.99Shop/Dealer Price$105.01 - $112.52
Show example BMW 840i Adjust Drive Belts prices

What are drive belts all about?

The drive belts are connected to the crankshaft (a part of the engine), as well as to the alternator, air conditioning, and power steering system. The belts are responsible for transferring power from the crankshaft to these other systems. Over time, and especially if multiple systems that put stress on the belts are being used, the belts can grow loose, or unaligned. When this happens the belts will need to be adjusted so that they can return to their normal, optimal position.

Keep in mind:

  • If the drive belt is at all frayed or cracked it should be replaced instead of adjusted.
  • When the drive belt is adjusted, the drive belt tensioner and idler pulley should both be inspected.

How it's done:

  • Adjust the drive belts

Our recommendation:

Your drive belts should always be checked during tuneups and maintenance. During any kind of servicing your drive belts should be checked to see if they need to be replaced or adjusted.

What is a common symptom indicating you need to adjust the drive belts?

  • Squealing noise from the engine

How important is this service?

Your alternator, power steering, and air conditioning are all powered by your drive belt. The belt is connected to the crankshaft, and transfers power to these systems. As the belt is used and wears, it can grow lose, or begin to become unaligned. If the drive belt becomes loose, it won’t move as efficiently, and it won’t transfer power as efficiently. If the belt becomes unaligned, it can come into contact with parts of the engine, which can cause damage.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee

Number of BMW services completed
73337+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(6,667)
Rating Summary
6,214
206
60
44
143
6,214
206
60
44
143

Robert

20 years of experience
1104 reviews
Request Robert
Robert
20 years of experience
Request Robert
by Karolis
BMW 335i xDrive L6-3.0L Turbo - Adjust Drive Belts - Denver, Colorado
Robert Helped on our BMW. He arrived on time, had a variety of tools to complete the job. I got a lot of questions answered and he managed to complete the job in no time. Would definitely recommend and will use Robert's service in the future!

Jason

32 years of experience
527 reviews
Request Jason
Jason
32 years of experience
Request Jason
by Aliyah
BMW 325Ci L6-2.5L - Fuel Filter - Union City, California
Great person.

Emmette

36 years of experience
282 reviews
Request Emmette
Emmette
36 years of experience
Request Emmette
by Anthony
BMW X3 L6-3.0L - Oil Filter Housing Gasket - Annandale, Virginia
I was a little skeptical at first having never used this type of service before. But now I can't say enough good things. He was on time and very knowledgeable. He had zero issues and obviously knew his way around the BMW which made me feel comfortable. The overall experience was great and I enjoyed the personal aspect rather than just dropping the vehicle off and hanging out in a waiting room. Job well done!! If I come across a repair that is a little over my head and/ or just don't have the time to do, I would def consider Emmette.

Pardeep

21 years of experience
1090 reviews
Request Pardeep
Pardeep
21 years of experience
Request Pardeep
by DOUGLAS
BMW 428i Gran Coupe L4-2.0L Turbo - Oil Change - Milpitas, California
Pardeep is excellent in his craft and he was able to point out that I also needed to have a brake fluid flush for my car and able to have that taken care of both in the same time slot . Extremely fast and very friendly . Highly recommend

Excellent Rating

(6,667)
Rating Summary
6,214
206
60
44
143
6,214
206
60
44
143
Number of BMW services completed
73337+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Recent articles & questions

Symptoms of a Bad or Failing Valve Cover Gasket
Common signs of a faulty gasket include a burning oil smell, dirty valve cover, oil leaks, low engine oil, and a rough-running engine that misfires.
Read more
The Traveler’s Guide to Driving in Austria
Austria Austria has some truly remarkable scenery, and it is one of the most beautiful countries in Europe. You will find plenty of things to see and do (http://www.lonelyplanet.com/austria/things-to-do) while you are in Austria. You could spend most of your...
Read more
How to Replace a Differential Output Seal
Differential output seals prevent fluid from leaking out of the differential, causing the differential to overheat and cause damage to your car.
Read more

Rear windshied shattered, how does this happen?

This is absolutely not a normal thing; however, it is not a first occurrence for a Ford Escape. In fact, this event has happened enough times that the National Highway Traffic Safety Administration (NHTSA) began an investigation involving 2010-2011 Ford...
Read more

Truck won't start even with new battery.

The antitheft system needs a proper code key in order to turn off the antitheft system. If you have a different key then try that. If this does not work then try to disconnect the battery and reconnect it after...
Read more

ABS brakes lock up

Your traction control and anti-lock braking system work together to control the car in adverse conditions such as snowing conditions. The traction control system monitors the steering stability of the vehicle and engages when loss of traction has been detected....
Read more
  1. Home
  2. Estimates
  3. BMW
  4. 840i
  5. Adjust Drive Belts

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

Read FAQ
GET A QUOTE