BMW 525iT 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

(310)

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

(310)

Spark Plug Replacement Service

How much does a Spark Plug Replacement cost?

On average, the cost for a BMW 525iT Spark Plug Replacement is $262 with $66 for parts and $196 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1993 BMW 525iTL6-2.5LService typeSpark Plug ReplacementEstimate$348.88Shop/Dealer Price$390.67 - $496.20
Show example BMW 525iT 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

(310)

Rating Summary
298
4
1
1
6
298
4
1
1
6

Duane

26 years of experience
589 reviews
Duane
26 years of experience
BMW 325i L6-2.5L - Spark Plugs - San Diego, California
Duane was very helpful and informative. He made sure that I understood what needs to get done with the car and showed me additional problems he found. Would definitely recommend

Tavaris

15 years of experience
93 reviews
Tavaris
15 years of experience
BMW 325i L6-3.0L - Spark Plugs - Loganville, Georgia
Very professional and knowledgeable!!

Luis

10 years of experience
140 reviews
Luis
10 years of experience
BMW M5 V10-5.0L - Spark Plugs - New City, New York
Luis was a wonderful person that was very knowledgeable and friendly. He did an amazing job servicing the vehicle even when the car itself was a pain, he didn't lose courage and he kept on working and even finding new and creative ways to get the job done when the car didn't want to cooperate. I really like the fact that he was willing to teach me about the car and have knowledge on howt to fix things. I would recommend him him to anyone and would definitely work with him again.

Tien

24 years of experience
903 reviews
Tien
24 years of experience
BMW 325i L6-3.0L - Spark Plugs - Castro Valley, California
Tien is great and helpful. Gives me advice on how to maintain the car in good shape.

Excellent Rating

(310)

Rating Summary
298
4
1
1
6
298
4
1
1
6
Number of BMW Spark Plug Replacement services completed
3410+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1200+
experts on our platform

Recent articles & questions

Top 10 Scenic Drives in Rhode Island
Although Rhode Island is the smallest U.S. state, there is far more to explore than the uninitiated may suspect. About 14% of its area abuts saltwater, earning its nickname of the “Ocean State,” and those meetings of land and sea...
How to Replace an Evaporative Emission Control Canister
Emissions are regulated by the EVAP emission control canister which fails when the fuel tank gauge does not work or you fail an emissions test.
P2648 OBD-II Trouble Code: A Rocker Arm Actuator Control Circuit Low Bank 1
P2648 means there is a problem with a short or open electrical circuit in rocker arm actuator control circuit A due to low oil or a faulty oil valve.

Rough idle and hiccup back threw throttle body and causes smoke out breather

This is a common issue when what is called the idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement) is not working properly. This regulates air flow into the throttle body at idle speeds as it is mixed with fuel prior to being injected...

I have a 2010 Camaro RS with an llt engine. How exactly would I take the thermostat housing off to replace the gasket & o-ring ?

The coolant pipe near thermostat cover will need to be removed for access to thermostat. If you have an aftermarket cold air intake plenum then you may have to remove upper and lower housing thermostat housing to get to the...

My car starts but it wont move when i put it in any gear

Hi There, It sounds like your car may be low on transmission fluid (https://www.yourmechanic.com/services/transmission-fluid-service) or the fluid may need to be changed. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is...

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 (844) 997-3624 · hi@yourmechanic.com