BMW 1 Series M 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

(278)

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

(278)

Spark Plug Replacement Service

How much does a Spark Plug Replacement cost?

On average, the cost for a BMW 1 Series M Spark Plug Replacement is $320 with $187 for parts and $133 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2011 BMW 1 Series ML6-3.0L TurboService typeSpark Plug ReplacementEstimate$535.15Shop/Dealer Price$663.69 - $970.57
Show example BMW 1 Series M 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

(278)

Rating Summary
267
4
1
1
5
267
4
1
1
5

Chris

16 years of experience
419 reviews
Chris
16 years of experience
BMW 330Ci L6-3.0L - Spark Plug Replacement - San Francisco, California
For the better part of a month, I’d been panicking over my 2002 BMW 330ci, which had basically lost all power, so it was just sitting in my garage. Towing it to a shop for diagnostic testing was an option, but then I’d be stuck in the event projected repair costs exceeded the car’s worth (or even half of its worth). Being stuck sucks, so I decided on exercising another option. After reading a bunch of reviews and doing some research on Your Mechanic and their team of mechanics, I decided on giving them a try. I am so glad that I did. What an outfit! Great concept, great execution ... The people in the office are wonderful at keeping you informed, answering questions, from beginning to end. Their online presence and transparency dismisses any weirdness customers may feel about the whole inviting strangers over thing, too. And Your Mechanic delivers, by connecting top-tier mechanics with people who need their help. That’s exactly what Your Mechanic did for me, by introducing me to Chris M. He came to my rescue. What a pleasant polite young gentleman, Chris is. And Boy oh boy!, does he know his stuff! With patient professional confidence and calm, Chris ably diagnosed my car’s problems, tested the hypothesis, and retested too. The problems weren’t easy to find or common whatsoever. Thanks to diligence and expertise, however, Chris M. identified the issues. It wasn’t piston rings or the catalytic converter, as I’d feared, but a faulty engine coil. Chris explained the issue, actually showed me what was going on in the engine compartment, provided me with a detailed quote that I knew was fair and reasonable (talk about a mind Blow!), and then he even offered to come back and do the work, if I wanted. Heck Yes! Chris came back the very same day to render the fixes, all from inside of my garage. No tow trucks, no queue of customers waiting, no worries about surprisingly huge repair bills, and no concern about strangers coming over, or anxiety about non-OEM parts. I have a brand new engine coil, new spark plugs, a clean gas line, clean oil – and a renewed confidence in my automobile’s reliability. Presto! My car runs like a charm. Chris M. earned my confidence, my trust, and my respect – and that’s an amazing feat. Having a qualified, knowledgeable professional come to my home, diagnose my car’s troubles, and even render repairs on site, using manufacturer-recommended parts, sounds like a luxury I couldn’t afford. Turns out I was wrong. No doubt, from here on out, I will be recommending Chris M. and Your Mechanic to anyone and everyone.

Jonathan

35 years of experience
483 reviews
Jonathan
35 years of experience
BMW 740iL V8-4.4L - Spark Plugs - Tampa, Florida
Jonathan was very knowledgeable and professional. He arrived on time, instantly diagnosed the problem and quickly fixed it

Chris

16 years of experience
324 reviews
Chris
16 years of experience
BMW 325i L6-3.0L - Spark Plugs - San Diego, California
Mr. Aquino told me I purchased the wrong coils and therefore couldn't complete the original work I needed. He also found several gasket leaks which he recommended I fix before installing the correct coils at a later time. I followed up by completing further research and was shocked when I discovered the coils I purchased were, in fact, the correct coils.

Manuel

32 years of experience
580 reviews
Manuel
32 years of experience
BMW 328i L4-2.0L Turbo - Spark Plugs - Riverside, California
Knowledgeable and given great advice on how to continue with maintenance. Very productive, worked fast. Has the right tools for the job. Clean job with not 1 drop of fluid on the floor.

Excellent Rating

(278)

Rating Summary
267
4
1
1
5
267
4
1
1
5
Number of BMW Spark Plug Replacement services completed
3058+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform

Recent articles & questions

How to Remove Gas from the Fuel Tank
It It is often necessary to drain the fuel from a car’s gas tank (https://www.yourmechanic.com/article/3-essential-things-to-know-about-your-car-s-gas-tank) in some of the following situations: If you run out of gas while far away from a gas station, you may want to siphon gas...
How to Prevent Spills in Your Trunk
The The purpose of a car trunk (https://www.yourmechanic.com/article/how-long-does-a-trunk-latch-last) or hatch is simple. Its purpose is to carry or store items securely, including groceries, large items, and spare fluids. There is virtually no limit to what you can carry in your...
How to Install a Tachometer in Your Car
A tachometer gauge allows the driver to see the engine's RPM. Some may install tachometers for performance, looks, or to simply monitor engine speed.

How do I use the power door locks?

Both front doors have a Power Door Lock switch. Press the lock icon on either of these switches to lock all of the vehicle’s doors, including the trunk. Press the unlock icon on either of these switches to unlock all...

Engine froze up

Hi there. If the engine will not crank over even with a fully charged battery, then there is another problem. If it is suspected that the engine is frozen then a mechanic would typically try turning over the engine by...

Heater and transmission fluid

The cabin heating system and the automatic transmission have no connection. Faults in one do not affect the other. The transmission fluid leak is possibly in the tubing and/or rubber hoses through which transmission fluid flows to the radiator and...

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