BMW 525xi Spark Plug 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

(13)

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

(13)

Spark Plug Replacement Service

How much does a Spark Plug Replacement cost?

On average, the cost for a BMW 525xi Spark Plug Replacement is $596 with $288 for parts and $308 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2007 BMW 525xiL6-3.0LService typeSpark Plug ReplacementEstimate$917.86Shop/Dealer Price$1075.94 - $1518.98
2006 BMW 525xiL6-3.0LService typeSpark Plug ReplacementEstimate$898.04Shop/Dealer Price$1049.31 - $1487.25
Show example BMW 525xi Spark Plug Replacement prices

What are spark plugs and how do they work?

Spark plugs are one of the key components of your vehicle’s ignition system. They ignite gasoline and air inside of your engine. This gives your engine the power to propel you down the road. The spark plug takes high voltage electricity from the ignition coil and creates a spark at just right moment during the engine’s combustion cycle. This gives the engine the best mix of power, fuel economy and low emissions. However, the electrode at the end of the spark plug eventually wears out and can cause performance issues.

Spark plugs-MATROX-1

When should you replace spark plugs?

Replacement should follow the vehicle maintenance schedule. This will be listed in the vehicle’s owner’s manual. Some cars require regular replacement at 30k, 60k or 100k miles. It is possible in some cases that a spark plug might fail before the service schedule, but it’s not typically common.

Avoiding spark plug replacement can cause:

  • Difficulty starting your car.
  • Check engine light for a misfire code.
  • Flashing check engine light during acceleration for misfire, this can cause engine damage.
  • Reduced fuel economy and/or power.
  • Rough idle and/or unexplained engine vibration.
  • Failed State emission testing.

Even if only one spark plug is found to be faulty, they should always be replaced in sets. Most engines will require 4,6, or 8 spark plugs.

How do mechanics replace spark plugs?

Spark plugs are threaded into the engine’s cylinder head(s). Most cars have one plug per cylinder, so a four-cylinder engine will have four plugs, a six-cylinder engine will have six plugs, and so forth. The mechanic will:

  • Have the correct spark plugs on hand for your vehicle
  • Pull any diagnostic trouble codes that may be related to worn spark plugs.
  • Remove the original spark plugs and look at removed spark plugs for any clues indicating engine mis-operation exists; such as oil burning, excessively rich mixture, pre-ignition damage etc. Inform owner of any found unusual conditions.
  • Install new plugs using a torque wrench.
  • Finally, a road test of the vehicle to confirm normal operation.

Is it safe to drive with worn spark plugs?

Yes, but spark plugs that are worn enough to cause engine-misfiring have the potential to cause engine damage and overheating of the catalytic converter. Regardless of the age of the plugs, or mileage, if the engine misfires or runs poorly, the plugs should be inspected for defects. Generally, spark plug failure will not keep the engine from running, but in cases of extreme wear, you may experience a limitation in the speed at which you can drive the car. If the maintenance schedule says the plugs should be replaced, it is best to do so promptly.

When having spark plugs replaced keep in mind:

  • High-speed driving may accelerate spark plug wear. Consider earlier than required inspection and tune-up if you operate the car in severe conditions.
  • Plugs should always be promptly replaced per the manufacturer maintenance schedule even if they appear to be working perfectly.
  • If your vehicle is equipped with spark plug wires (as opposed to a coil-on-plug system), the wires should be replaced at the same time. This may increase the cost of your repair.
  • It is possible that when doing a spark plug replacement, your vehicle may also need additional parts like ignition coils, this will add to the repair cost.
  • Some engines require that the intake manifold be removed while replacing spark plugs. This may increase the parts and labor cost for the repair.
  • Leaking valve cover gaskets, which have let oil get in contact with the spark plugs, coils or wires, may be the cause of ignition system issues. Valve cover gaskets will need to be replaced in addition to the spark plugs, wires or coils. This will add to the repair cost.

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

(13)

Rating Summary
12
1
0
0
0
12
1
0
0
0

Keith

19 years of experience
406 reviews
Keith
19 years of experience
BMW 525xi L6-3.0L - Valve Cover Gasket - Orlando, Florida
The price quoted was $741.34, why was I charged $$827.19, what caused the change in service.

Matthew

10 years of experience
38 reviews
Matthew
10 years of experience
BMW 525xi L6-3.0L - Brake Pads Replacement (Front) - Denver, Colorado
I highly recommend this service! Was a great experience.

Willie

25 years of experience
158 reviews
Willie
25 years of experience
BMW 525xi L6-3.0L - Steering wheel is hard to turn - Anaheim, California
Willy was great, very knowledgeable and great energy.

Danny

12 years of experience
269 reviews
Danny
12 years of experience
BMW 525xi L6-3.0L - Serpentine/Drive Belt - Philadelphia, Pennsylvania
Excellent service

Excellent Rating

(13)

Rating Summary
12
1
0
0
0
12
1
0
0
0
Number of BMW 525xi services completed
143+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1200+
experts on our platform

Recent articles & questions

How Headlights Are Tested and How Yours Can Be Improved
According According to the Insurance Institute for Highway Safety (IIHS) (http://www.iihs.org/iihs/ratings/ratings-info/headlight-evaluation), about half of fatal roadway crashes happen in the dark, with about a quarter of those happening on unlit roads. This statistic makes it more important than ever to...
4 Essential Things to Know About Running Out of Gas
While it would be nice if it wasn’t so, every vehicle can run out of gas. The good thing, however, is...
Top 5 Reasons Automobile Handling is Important
Good car handling means a car’s suspension system is working properly and is important to safe and efficient driving.

Car smoking and shaking

Depending on what kind of smoke will determine what the shaking could be. There are 3 basic types of smoke. Black smoke is raw fuel. Raw or unburnt fuel can foul spark plugs causing a misfire. A misfire will seem...

The new ignition is locked, cannot turn over

Hello. When you install a new ignition and a new computer, it needs to be reprogrammed to communicate correctly. This can usually only be done at the dealer. If they are not programmed correctly then the computers will not communicate...

How to get rid of gasoline odor?

Hi there: You can read this article to give you some good tips on removing odors (https://www.yourmechanic.com/article/how-to-remove-odors-from-your-car) from a vehicle. The best process is to remove the carpet, fully clean underneath, shampoo the carpet and repeat a few times as...

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