BMW 740Li xDrive Adjust Ignition Timing at your home or office.

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Adjust Ignition Timing Service

How much does a Adjust Ignition Timing cost?

On average, the cost for a BMW 740Li xDrive Adjust Ignition Timing is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2013 BMW 740Li xDriveL6-3.0L TurboService typeAdjust Ignition TimingEstimate$114.99Shop/Dealer Price$132.49 - $145.62
2014 BMW 740Li xDriveL6-3.0L TurboService typeAdjust Ignition TimingEstimate$94.99Shop/Dealer Price$112.52 - $125.67
2015 BMW 740Li xDriveL6-3.0L TurboService typeAdjust Ignition TimingEstimate$94.99Shop/Dealer Price$112.52 - $125.67
Show example BMW 740Li xDrive Adjust Ignition Timing prices

What is ignition timing all about?

Your engine relies on perfect timing to work smoothly and efficiently. This requires ideal ignition timing. The ignition system is responsible for creating the spark that combusts the fuel that powers the cylinders and therefore the engine. In order to have your engine run perfectly, the ignition has to create a spark at the optimal time. As miles accumulate, your ignition system may start to spark at the wrong time, and the timing will need to be adjusted.

Keep in mind:

  • Many modern vehicles have ignition timing that automatically adjusts.
  • Whenever the ignition timing is adjusted, the entire ignition system should be inspected.
  • After adjusting the ignition, the vehicle should run for a few minutes to make sure that it works properly.

How it's done:

  • Hook up timing light
  • Check the ignition timing
  • Adjust if needed

Our recommendation:

The ignition system is a pivotal part of your vehicle, and should always be inspected during routine maintenance and service. During all engine tuneups the ignition timing should be checked.

What are the common symptoms indicating you need to adjust the ignition timing?

  • Car stays running when you turn it off
  • Rattling noise from the engine

How important is this service?

Your engine has four basic steps of operation. The first is intake, where fuel is added to the cylinders. The second is compression, where the fuel is compressed in the cylinder. The third is power, where the compressed fuel is combusted, thus firing the cylinders. And the fourth is exhaust.

Your ignition system plays a key role in between the second and third steps. The ignition system sends a strong current to the spark plug, where a spark is created that helps ignite the fuel. This happens immediately after compression; the spark ignites the compressed fuel, which combusts it and creates the power. Over time the ignition timing can be altered, and the spark will not occur between compression and power. As a result, the fuel will have a hard time combusting, the cylinder will not be as powerful, and the engine will have problems.

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6,159
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Eduardo

12 years of experience
41 reviews
Eduardo
12 years of experience
BMW 740Li xDrive L6-3.0L Turbo - Pre-purchase Car Inspection - Villa Park, California
Eduardo is a top rate professional. I had him do a pre-purchase inspection on an out of state BMW 7 series that I am considering purchasing. He is very knowledgable, a great communicator and is willing to go the extra mile to ensure that I understood all aspects of this car, good or bad prior to making a decision to purchase. I will definitely use him again.

Christopher

5 years of experience
11 reviews
Christopher
5 years of experience
BMW 740Li xDrive L6-3.0L Turbo - Trunk Lift Support Shocks - Sacramento, California
Punctual and professional. Christopher is a good mechanic, he explained what he’s working on and how long the work is.

Mohammed

9 years of experience
152 reviews
Mohammed
9 years of experience
BMW 750Li V8-4.8L - Automatic Transmission Fluid Service - Raleigh, North Carolina
This guy knows his job! Did a great job on my wife’s BMW!!

Jason

15 years of experience
344 reviews
Jason
15 years of experience
BMW 535i xDrive L6-3.0L Turbo - Oil Change - Bronx, New York
Good perfection always

Excellent Rating

(6,607)

Rating Summary
6,159
203
60
44
141
6,159
203
60
44
141
Number of BMW services completed
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services done by our mechanics
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