For replacement parts, we only use the best – typically Genuine BMW or OEM Manufacturers.

We tend to be quite particular about the aftermarket parts we install on customer’s vehicles. There are far too many poorly engineered “upgrades” available that often times adversely affect the driving experience. We have the experience to steer customers in the right direction when it comes to choosing how to modify their vehicles. And sometimes when NOT to modify their vehicles!

Years of experience and building relationships with manufacturers has put us is the position to take on projects that most shops would turn away. Engine swaps, manual transmission conversions, full-on track car builds – we can do it all.

That being said, no job is too small for us. We take great pride in servicing and maintaining all BMWs. From changing the oil in the daily driver 328xi to the last minute brake flush and tech inspection for this weekend’s track day.

We use nothing but the best when it comes to engine oil and oil filters. For most vehicles, we use Liqui Moly Leichtlauf 5W-40 or Liqui Moly Race Tech 10W-60, depending on BMW’s original specification. We also use Motul and Redline oils in different viscosities for certain track or race applications. We use only OEM Mann, Mahle, or Hengst filters or Genuine BMW oil filters.

Your vehicle’s service reminder, as well as your BMW dealer, have probably told you that you can go as far as 20,000 miles between oil changes. We feel that is far too long to run for any engine. For most street-driven vehicles we recommend changing the engine oil and filter every 6,000 miles or 12 months.

If you really want to know how you engine oil is performing, we can send a used oil sample to Blackstone Laboratories, who will send us a report detailing the oil condition, as well as any contaminants found in the sample that may point to any issues.

BMWs, especially M cars or those with modified suspensions, are extremely sensitive to wheel and tire balance. In addition to a smooth ride, a good balance will help your tires wear evenly without “cupping”. Of course, wheel alignment is also critical to even tire wear – we have the equipment and knowledge to get your car dialed-in.

At Turner Service we recommend balancing your tires every 6,000-7,000 miles. If your BMW has the same size wheels and tires on all 4 corners (normally referred to as “square”), we’d recommend rotating the tires at the same time. If your BMW comes with different size front and rear tires (normally referred to as “staggered”), you will be unable to rotate the wheels front to back, but balancing and wheel alignment becomes even more important in preventing uneven wear and/or vibrations.


Wheel and tire upgrades
After years of testing different wheel and tire combinations on all BMW’s we have a good idea of what works and what doesn’t. Bigger isn’t always better, and lighter isn’t all that matters with a race wheel. How is upgrading from a 17” wheel to a 19” wheel going to effect the handling of your BMW?

From expensive custom wheels with ultra-low profile performance tires, to super stiff R-compound and run flat tires, we can handle wheel and tire combinations that your local tire shop will not touch, and without damaging them!

At Turner Service we use state of the art equipment including our Hunter Hawk-Eye alignment rack. Keeping your BMW aligned is incredibly important in preventing premature tire wear and costly tire replacement bills. Even if your BMW isn’t “pulling” to the left or the right, it doesn’t mean that your car is aligned properly.

There are multiple adjustments (camber, caster, and toe) that can be made during a 4 wheel alignment that help provide you with the ultimate driving experience for your ultimate driving machine, as well as get the best wear for your tires. Each BMW comes from the factory with different amounts of adjustment (some of the newer cars don’t have a factory camber adjustment). If any of these adjustments are out of BMW spec, it could make your car drive funny, wear the inside edge of your tire(s), wear the outside edge of your tire(s), make the vehicle pull to the left or the right, make the car uneasy at high speeds, make the car hard to turn, prematurely wear some (or all) of your tires, and many other things.

At Turner Service we recommend getting at least 1 alignment every 10,000 miles or 12 months. If you have a track driven vehicle or a race car, you might do as many as 3-4 alignments during the “season” for a variety of reasons. Ultimately, it’s important to maintain your BMW’s tire maintenance, especially in New England given the HUGE potholes that we have!

If you’ve heard the name Turner Motorsport before, then you’re likely familiar with what we do. Will Turner started Turner Motorsport back in 1993 out of the trunk of his E30... selling brake pads at the race track, so he could continue to pursue his dream of driving on a race track. Fast forward to 2019, and that dream has been more than realized with over 375 professional races and 7 championships.

What this adds up to is that the expert technicians at Turner Service have the skills, knowledge, and experience to help you with your BMW.

Whether this is a car that is raced at the amateur level, professional level, or a car that is used for BMWCCA driver schools (or similar), we have the ability to make that car the best it can be. From building roll bars and roll cages, performing engine swaps, installing custom suspensions, installing race seats and harnesses, installing aero components, installing fire suppression systems, corner balancing, custom alignments, and more, our technicians are up for the challenge.

At Turner Service, you can bring your car to us as a bone stock car looking to be built to a full-on track machine, or you can bring your already full-on track machine to us for routine service/check-ups. You can find our service manager, shop foreman, and other employees at the track throughout the summer months. You’ll also find numerous Turner Service maintained race/track cars throughout the country. Like everything Will Turner has done in the past, he demands perfection of our team, meaning you can be sure that no corners are cut and we’re treating your car like it’s one of ours.

We offer 2 types of track inspections:

The standard inspection is free for all BMW of Boston CCA members and is a basic visual inspection closely following the tech inspection checklist. We recommend this one for newer, unmodified cars that may be going to their first track event.

The second, more thorough inspection we offer is better suited to older and/or modified vehicles that see multiple events per year, as well as full-blown race cars. This service includes a full nut and bolt of chassis components, with the application of marking compound to help quickly visually inspect for loosening components.

On E36 and E46 chassis vehicles (including Z4s) we lower and inspect the trailing arm pockets for fractures and excessive rust build up. Front lower control arms will be closely inspected for worn ball joints. Failures of these components on track can be catastrophic, so it is important they are inspected by someone with years of experience.

E9x M3 vehicles, especially those using R-compound tires, should have their rear toe arm bolts replaced and upgraded on a regular basis. The single-shear design is inherently weak and can fail without warning under the extreme loads seen during track use.

This inspection service includes a custom alignment to maximize performance for the usage of the vehicle, whether it is a trailered track car or a daily driver that is used for a few events per year.