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New Location: 105 Daniel Webster Highway Merrimack NH 03054


Check engine light

If the check engine light is illuminated, it can only mean one thing – your engine is likely in trouble. Many BMW owners in Merrimack, NH, dread this indicator because it may mean dozens of possible issues. If this dashboard light is turned on, do not delay and call us right away. Otherwise, you are risking lasting and expensive damages to your luxury vehicle.

Ultimate Bimmer Services is your premier auto repair center in New Hampshire. Our certified specialists will expertly diagnose your check engine light and perform the necessary procedures to get your BMW back on the road. Moreover, we offer transparent and effective services at very competitive prices.

Check Engine Light and Diagnostic Experts in Nashua, NH

Check Engine Light and Diagnostic Experts in Merrimack, NH

Drivers in Merrimack and the rest of New Hampshire say that we are the best car repair center in town – and we agree. We are a team of highly-experienced professionals who share a passion for automotive care – and we have the same goal of providing you only the best service possible.

Additionally, we use factory-grade and cutting-edge equipment for BMWs. These include the latest onboard diagnostic scanners (OBD-2) to determine what triggered your check engine light. Where most repair shops can tell the general location of the issue, we can provide the exact location of the problem with your BMW.

Why choose us for Check Engine Light services?

Your onboard error codes and check engine light may seem cryptic and confuse a novice. Some problems may not be too threatening, so you can still drive your BMW with these lights illuminated. However, forcing to use it in such a condition might be bad for the engine.

The check engine light is connected to your engine control module (ECM). This component controls various features inside your vehicle. Moreover, the ECM is the main technological apparatus that controls your engine’s performance, horsepower output, transmission fluidity, and fuel efficiency.

That’s why an illuminated check engine light may be caused by any faulty part linked to the ECM. This may be a crucial component like the transmission system control or the catalytic converter.

As such, you should call Ultimate Bimmer Services ASAP as soon as your check engine light illuminates. Our techs in Merrimack, NH, will find the issues without fail and prevent expensive engine replacement as much as possible.

As noted by our happy customers in New Hampshire, here are the key benefits that you will get from a check engine light service with us:

  • Smoother rides and better vehicle control
  • Improved engine performance
  • Better fuel efficiency
  • Consistent valve and ignition timing
  • Maintained reliability and resale value of your vehicle
  • Early detection and prevention of engine problems
  • More savings in the long run and many more

Loose or damaged radiator cap replacement

A broken or loose radiator cap may trigger the check engine light since it prevents pressurizing the system. This may also result in overheating, melting your head gasket, and causing damage to the engine.

Oxygen sensor repair and replacement

Another common culprit behind the check engine light is a faulty O2 sensor. This can negatively affect the timing of the engine and combustion intervals. Getting this service from us will prevent stalling and unexpected power losses while driving.

Spark plug replacement and auto electrical diagnostics

Busted spark plugs, corroded wiring, and other electrical issues can also trigger your check engine light to illuminate. Using state-of-the-art inspection tools, our skillful techs will correctly identify the issue and fix it.

Check Engine Light Service in Merrimack, NH

We strongly advise that you take the check engine light on your BMW seriously. When it does illuminate, do not hesitate to call Ultimate Bimmer Services. We will definitely find the issues that cause it and ensure that your vehicle stays reliable for many years to come. 

Just schedule an appointment online or visit our auto repair shop at 105 Daniel Webster Highway in Merrimack NH, NH 03054. Our friendly and seasoned technicians are looking forward to helping you!

Check Engine Light Services Offered in Merrimack, NH

Our BMW service shop in Merrimack offers a wide array of repair and maintenance services. In addition to accurate check engine light diagnostics, we perform various procedures to restore or keep your vehicle in its best condition. Here are some of the most popular check engine light-related services availed by our customers:

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Based on 50+ reviews

and WE couldn’t
be happier.


112 reviews on
Skyla King
Skyla King
Dan and everyone at ultimate bimmer took amazing care of my f10 and getting it back on the road! I am definitely using them for all of my services
T E Pete
T E Pete
Seemed like everyone I talked to there, knew about anything I'd ask. Looking forward to keeping my decade old 5- series running for another ten with the help of UBS!
Tim Callaghan
Tim Callaghan
Nothing but first-class and friendly service!
Charles Kickham
Charles Kickham
Amazing service and attention to detail.
Keith Knight
Keith Knight
The team here is great, and the new shop is clean, bright, and well organized. They did a great job with the air ride suspension on my Range Rover.
ellen w
ellen w
Highly recommend Ultimate Bimmer Services!! Recently purchased a 20 years old BMW and brought in for overall inspection. They provided very detailed review of all systems and addressed concerns. Very professional and knowledgeable! Topnotch evaluation and repair....would highly recommend to any BMW owners!
Fern Getto
Fern Getto
They know how to keep my old girl humming!
Very accommodating, and explains in understandable words/terms what’s wrong. And they did an amazing job with the work that they did
David Campbell
David Campbell
Dan and team are the absolute best for BMWs. Won’t take my 328xi anywhere else. Dare I say, better than the dealership?


Become a part of our Team, Team Bimmer. We look forward to being your BMW Specialists!








READY TO Get The UBS Advantage?

Our team knows that your BMW is a precious investment that you want to stay reliable for a long time. That’s why we believe you should entrust it only to qualified and experienced luxury vehicle experts in Merrimack, NH.

For all your BMW repair and maintenance needs, just call Ultimate Bimmer Services. We will get your vehicle back on New England highways quickly and safely. Please schedule a service online or visit our automotive repair facility at 105 Daniel Webster Highway in Merrimack NH 03054.