Bay Diagnostic

1717 Gravesend Neck Rd.
Brooklyn, NY 11229 US
16 Reviews
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Our state of the art auto service facility in Brooklyn, NY has been in business for over 25 years. Bay Diagnostic is fully equipped with dealer level equipment, information and original factory parts. This enables us to provide the same quality repairs, service and maintenance you get at a BMW dealer with the convenience of dealing with a local repair shop. Our professional Brooklyn BMW auto facility also specializes in Mini Cooper repair, service and maintenance.

Our loyal customers will tell you there is no comparison for hassle free, honest service. Our master technicians, along with our friendly service department, provide quality work and exceptional customer service at affordable prices. We'll even pick up and deliver.


  • After Hours Drop-Off
  • Hand Sanitizer
  • Masks Required
  • Pick Up & Delivery
  • Vehicle Sanitizing
  • Cable TV
  • Customer Lounge
  • Free Wifi
  • Magazines
  • Refreshments
  • Transit Accessible
  • Walkable Area


  • Jordan and the guys at Bay are legit. Wouldn’t have a functioning vehicle without them. Trust them with anything on my 325xi.

    Jim A., via Google
  • Great shop, honest and helpful. They went above and beyond to make sure my car ran well.

    Eugene P., via Google
  • This shop is like no other, perfectly clean and organized, the staff is professional and the prices are right. They really do take pride in what they do.

    Dimitri S., via Google
  • The guys here are great, had my oil changed and inspection done. Have used them before, brought them and issue, they looked at it, fixed it quickly and did not even charge me. Highly recommended.

    Eddie S., via Google
  • The guys that work here are friendly, hardworking and so courteous. Highly recommend for all your car needs.

    Jeanelle S., via Google
  • I've been a customer of Bay Diagnostic for years and am extremely pleased with services. The guys are amazing, professional, they take their time explaining car problems, always courteous.

    Hilel H., via Google
  • I’ve been a customer for over 35 years. Outstanding work and Jordan stands behind all of it.

    Mike D., via Google
  • This is an awesome and reliable shop. My cars have been serviced here many years, from car maintenance to inspections and never had a problem. Would recommend everyone to try their amazing services.

    Christian S., via Google
  • Well, I think this is the best auto service in Brooklyn. Friendly stuff, great service, professionalism. Thank you guys. It was my first visit but now I know exactly where I come when something happens with my car.

    Maksym M.
  • Honest. Caring. Personable.

    Chani K.
  • Excellent customer service, and very qualified team of mechanics.

    Luis D.
  • I visited Bay Diagnostic on 2/1/20 for an alignment issue created by the BMW dealership I went to this past Oct. I was greeted by Keith who was more than happy to open the garage earlier than they opened. He explained everything involved in the alignment process and best of all they have the state of the art equipment required by BMW to do the work properly. Suffice it to say they corrected the problem. And the most pleasing part is that the steering wheel is actually straight. Take it from a guy with OCD, a straight steering wheel is beyond important. As soon as the maintenance warranty expires with BMW I'll be bringing my car to Bay. And they are located 35 minutes from my house.

  • Great pro service.

    Ireneusz K.
  • Very friendly and most importantly honest! Very hard to find a trustworthy mechanic. I encourage you to give this shop a visit! Even did my spark plugs for free!

    Haleem A.
  • Been going to Bay Diagnostic for several years. The crew are polite, attentive, explain in lay language what needs to be done and it's cost, the waiting area is clean. I have recommended them to my friends.

    Susan F.
  • Keith is the man!

  • Looking for an honest mechanic is very difficult in New York. But these guys 100% honest, fast and professional. Best customer service I've had in a mechanic's shop.

  • For many years I have been operating German cars. My choice is the Bay Diagnostic for the service. Best mechanics, best prices. Impeccable service. I recommend to all owners of European cars.

    Borys P.
  • Great experience with Bay Diagnostics. Service team is knowledgeable and prices are reasonably below dealer pricing.

    Kent J.

16 Reviews

  • James K. Eng
    James K. Eng7 years ago

    I just had my car serviced at Bay Diagnostic and was presently surprised. The shop was clean and very orderly. The service was very very friendly from the owner Jordan and the workers. I was apprehensive when I first got there, but they put my fear to rest as soon as I got there. They do not sell you products or service you do not need. They are honest and efficient with all their customer. While waiting for my car, I spoke a few of their customers. They all had high praise for Bay Diagnostic. They do the job right and they stand by their repairs or services. I must agree with them,I am a believer.

    2009 BMW 528xi
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  • Roam
    Roam8 years ago

    Been here for awhile but they took my BMW right in. Friendly service, will more then likely bring my baby back to Bay Diagnostic.

    2008 BMW 535xi
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  • Mitch Primack
    Mitch Primack8 years ago

    These guys were just great. Had a check engine light on, and needed oil change. They came to my house in Greenpoint, picked up my BMW, diagnosed the warning light, did some other scheduled maintenance and did the front brakes. Rates were very reasonable and then they brought my car back the next night. They were honest and pleasant to deal with. I will go back to Bay Diagnostic.

    2007 BMW 328xi
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  • J. Dean Chavooshian
    J. Dean Chavooshian9 years ago

    I am particularly concerned with ensuring that my BMW is cared for and mechanically perfect. I have used Bay Diagnostic for several years and trust them completely. For sure, prompt, courteous and knowledgable service, I highly recommend them.

    2001 BMW 530i
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  • Day
    Day10 years ago

    Since the Manhattan dealer's service, in my opinion, has deteriorated in recent years, I thought I would give Bay Diagnostic a try. As a former professional mechanic who still personally maintains three cars, I was very impressed. Spacious, clean shop, knowledgeable, friendly people and fair prices. I will definitely go to them in the future.

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  • Steve
    Steve10 years ago

    I bought in my 2006 BMW x5. Had some dashboard error. These guys checked it out fast and fixed it without a hassle and explained the issue. Great shop. I will def come back to Bay Diagnostic if I ever need anything done to my car.

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  • Ron
    Ron11 years ago

    Bay Diagnostic is a professionally run shop, staffed with curtious and knoledgable people. Jordan and Al are honest, sharp and capable guys who will assess, advise and repair any and all the needs of your vehicle. Even though my stage 2 Dinan - 2008 335xi is still under "Factory Warrenty", I had the rear sway bar replaced with the Dinan sway bar at Bay Diagnostic's. Perfect job! Also, my son's 2007 GTI had some work done there, with a scheduled AWE cat-back exhaust upgrade. All the customers I've ever met that come here are totally happy with their work and have nothing but possitive comments about Bay Diagonostic.

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  • Nolan
    Nolan11 years ago

    Good shop, straightforward honest guys with very reasonable labor rates. I will be bringing my zhp back to Bay Diagnostic. Car runs great, especially with the Dinan stage 2 software and intake.

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  • Raymundo
    Raymundo11 years ago

    Found Bay Diagnostics through a Roundel Magazine ad they placed, good place to have Bimmers repaired/diagnosed. I had a 2006 525i and I now own a 2011 535i (Sport Package) they change the oil and charge a good price/ they give you an estimate before working on the car. I recommend them to anyone with an Ultimate Driving Machine :-)

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  • Monique
    Monique12 years ago

    I am completely satisfied with the service I received from Bay Diagnostic. Great customer service, well knowledgeable about the car, and good prices. I will always bring my 645 there!

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  • Greg
    Greg12 years ago

    Called the shop to get a price quote on my e39 subframe bushing change. They where unequipped & unable to help me out.


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  • Dean
    Dean12 years ago

    I take great pride in my 530i - hand polish twice a year, check the tire pressure regularly, park indoors, avoid the rain when possible, etc. and I'm happy to have found Bay Diagnostic as my new independent mechanic. Friendly, knowlegable, on time, fair and recommended.

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  • Fercor
    Fercor12 years ago

    Simple...just get a quote on the service you need/want....wait 3 or 4 up with your car....they are happy to see you, even if you show up too early...then they charge you exactly what they quoted you a while back and they even offer to wait for your if you are running late to pick up your car!!!....That is service and HONESTY....with a smile, which is not necessary but it helps....thanks guys...will be back soon. Impeccable service, Impeccable shop and office.

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  • Michael
    Michael12 years ago

    I went to Bay Diagnostics for oil change and transmission fluid check for my BMW 740iL. The service was prompt and my receipt showed "oil change, all fluid checked". However my transmission fluid was never ckecked as I found out later when I took my car to another repair shop. They added 2.5 quarts of the special Shell oil.which I supplied and I was present when they put it in. They also showed me a small leak from the rear transmission seal.

    Bay Diagnostics did not check my transmission fluid, did not mentioned anything about oil leak eventhough they had the car on the lift and now I wonder about my $100 oil change.

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  • Lacey
    Lacey12 years ago

    When the battery on my Land Rover failed to start my car, my dealer suggested a lot of different things. I had a brand new battery put in, the radio checked for drains and the alternator replaced. The battery still would not last over night. A friend recommended Bay Diagnostics for their careful and honest service.

    They found the problem, a rare glitch in my AC wiring was draining the battery. It was quickly repaired by the no nonsense, friendly staff. If I had known about them sooner I would have never dealt with the dealer, but I am glad to know of them now!

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  • Dan
    Dan13 years ago

    I was referred to this shop from my mechanic due to an issue with my supercharger system which we couldn't diagnose. We finally determined my fuel trims needed to be reset before we could move forward but there aren't many shops which can do this. I found a few shops with Snapon Motivs but they could only read my trims (1996 M3) but not reset them. Finally the guys here at Bay Diagnostic did exactly that. Friendly, quick service and it's a nice, clean shop to boot. They definitely gave me a good deal and I'd certainly recommend them to anyone, especially if you need higher end diagnostic and ECU work done which they can do using their BMW-specific equipment like the Autologic and BMW GT1, not many shops have this equipment so they're definitely an asset to the Long Island/NYC BMW community.

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