South Florida's Premier European Auto Repair, Performance & Race Facility Since 1978
Foreign Affirs Motorsport
Foreign Affairs Motorsport
(954) 746-0488 Mon-Fri 8am - 5:30pm

Understanding The Risks Of DIY Maintenance On Your BMW

BMW maintenance

BMW has one of the strongest cult followings of any automotive brand. In a world of increased efficiency and cost-cutting front-wheel drive cars, it remains one of the most accessible ways to get your hands on a true rear-wheel drive sports car that’s easy to tune.

Unfortunately, it feels like every generation of BMW is cursed with some kind of fatal flaw, from the E46s cracking subframe mounting points; to the E9x’s problematic engine bearings and excessive carbon build-up; and VANOS failure in almost every other model lineup. Combine this with the “BMW tax” apparent on every repair item, and the urge to tackle some of these issues at home is stronger than ever.

However, you might want to hear why some BMW maintenance and DIY repairs are best left to the professionals

Carbon Clean Up

The internet has countless “home hacks” for cleaning the excess carbon in your BMW’s engine created by the direct port injection system. From spraying the brake clean into the cylinder and scraping the carbon off with a pick, to allowing your engine to ingest water and steam the carbon away, each remedy feels worse than the last.

The inside of your BMW’s engine has a machined surface that actually serves a purpose. The head is machined in such a way as to create smooth airflow passages for air and fuel to enter and exhaust gasses to exit. Etching on the cylinder wall allows oil to sit on the surfaces and keep the engine lubricated.

Using abrasives, such as brake cleaner and picks, can introduce gouges and ruin the finish of these surfaces. This can result in lowering performance and, in really severe conditions, introducing metal shavings into the engine that can cause oil blockages and lead to complete engine failure.

Do we really need to go into why letting your engine suck water into the intake is a bad idea? Your engine was never designed to handle water ingestion, as water does not ignite or compress, which can lead to hydro-locking or bent connecting rods.

bmw maintenance

Bad Guides Online​​​​​​

Sticking with the themes of “home hacks,” we have seen countless well-intended but poorly informed repair guides online. While forums can be great resources for information, they aren’t a substitute for factory repair guides and experience. It’s also important to remember that cars can change dramatically from generation to generation, and even from trim level to level. What may be the right technique for one vehicle may be completely wrong for the next.

Another thing to remember is that online videos are often made by mechanics with experience.They tend to demonstrate one specific use that makes the job seem easy and low risk.But without the same level of experience and access to tools, the repair is most likely going to be far more difficult and risky than portrayed.

Expensive Entry Costs

There has been an increasing trend for automakers to require mechanics to purchase specific tools in order to complete basic service tasks. Almost every manufacturer requires mechanics to have some version of an OBD2 scanner.In some cases, they may even require a proprietary scanner.

German car makers, like BMW, are especially guilty of this.They often require mechanics to buy additional triple square head studs and torx heads for simple tasks. Acquiring all the tools required for repairs often comes with high upfront costs that catch home mechanics off guard, often when it’s too late to turn back.

Before tackling any repair, it’s important to ensure you have all the right tools available: all of which your local BMW specialist will already have.​​​​​​

bmw maintenance

Incomplete Kits

Repair and modification kits online are often incomplete and require additional parts to be ordered or fabricated. That wide-body kit you’ve been eyeing? Chances are it only comes with the widened panels, requiring you to figure out how to mount the panels yourself. That’s before considering the brackets you’ll need to strengthen the panels, extended wheel liners to protect the inner fender, and sealants to prevent water ingressing between the OEM and aftermarket panels.

Without experience and fabrication skills, you might end up with a body kit that will be ruined after a few drives from rocks hitting the underside of the panels or excessive flex. This is also true for performance upgrade kits. An upgraded turbo kit might not come with the required fuel pumps or tune to make the most of it.

Some turbo kits will require stronger internals or adjusted combustion ratios, which can completely grenade an engine if not upgraded. With every upgrade, it’s important to upgrade supporting parts to get the most out of your BMW and maintain its reliability.

Inexperience And Unfamiliarity

The biggest downside of DIY upgrades and repairs is unfamiliarity with the platform. The biggest advantage mechanics have when working on your car is familiarity. The internet might have you believe a component is a smoking gun, which can lead you down a wild goose chase of replacement parts and repairs.

Mechanics will have worked on multiple cars before, and will have experienced every fault possible on your vehicle. They willhave intimate knowledge of how to repair your BMW and what preventative tasks can be done to keep your it running problem-free for years to come.

Just picked up my car yesterday and am blown away by the quality of the work that was completed over the past two weeks. I came to Bobby with a short laundry list of items (mechanical and cosmetic) and he provided me with an honest assessment of the car as well as an action plan. As a newcomer to town, leaving your car in the hands of a new shop represents quite a leap of faith. The friendly staff and customer experience soon put me to ease. My leap of faith was rewarded and can’t say enough about the high quality nature of their work. I didn’t think it could be done but cold air actually blows out of the vents! Well done Foreign Affairs Motorsport! I will be back.
Lisa Roney
Lisa Roney
I want to thank the team at Foreign Affairs (Bobby, Rhonnie, Sean, Patty) for their professionalism and attention to detail on the work performed on my GT4. I've been taking my cars to them for years and they have consistently exceeded my expectations. They've always been very accommodating and make it easy/convenient to drop-off/pick-up the car to fit my schedule. I especially love that they are true enthusiasts, have deep knowledge about how to set the car up to perform at it's best, and are interested in the subsequent results. Thank you!
Leonardo Duarte
Leonardo Duarte
Kuddos to Bobby and the team! I love my restoration work on my 2001 Porsche 911
Randall Sikora
Randall Sikora
Great company!!
Howard Goldfarb
Howard Goldfarb
Fantastic work at a reasonable price. I've used FA for many years and have never been disappointed.
Dan Doyle
Dan Doyle
I have visited reputable shops from Fort Lauderdale to West Palm, but the service from Foreign Affairs is on a different level. They give you options, work with the client and keep a very friendly and professional environment. This is the place for imported cars.
Daniel Doychev
Daniel Doychev
We had an amazing service from the beginning until the end! Very professional and caring. Bobby answered all our questions and did and excellent job on our car. We recommend to everyone!
Location Gesteco
Location Gesteco
This was the third place, including Vista BMW, I took my vehicle to find out why water was leaking into my trunk and they figured it out. The cost was reasonable and Bobby V did a good job explaining the problem and documenting with pictures. This was my first experience with Foreign Affairs and I will be back when my cars need service.
Alan Fishman
Alan Fishman
Foreign Affairs Motorsport Team deserve more than 5 stars. Rhonnie, Bobby, Anthony, Sean and Dante were the best, most informed, experienced, respectful, and knowledgeable when it came to my 997.1. They knew exactly how to the solve the problems, created a concise plan and executed like a pit crew at a race track. I felt my car was well cared for and I was at peace knowing that I would get my car back in better shape. In April 2023, Fort Lauderdale was struck with a deluge out the bible. Flooding was obstructing roads so, not wanting to risk my car, I pulled over to higher ground. Unfortunately, my car stalled anyway. I called AAA but was told the roads were too risky and they could not send a tow out. As a long shot, I called Foreign Affairs hoping they could recommend a tow service. Not only did they call one out for me, but it was a flat bed. The tow driver found me at my car crying. You see, this car was my connection to my Dad. My Dad had taught me how to drive in his 911. He died when I was a kid, so every time I started the engine and heard that roar, I felt that my father was by my side. If my car was totaled then I would fee the pain of losing my father again. My car was a close call but the Foreign Affairs team came through. I am so very grateful to Rhonnie, Bobby, Dante, Sean and Anthony. Thank you. I continue to experience my Dad by my side, and the utter joy of of living the Porsche experience. Ingrid B.
Ingrid Balocco
Ingrid Balocco
I took my Porsche 911 996 in for service recently and was provided impeccable service by Rhonnie, detailing what needed to be done and options available. Between her, David, and Bob, I couldn’t be more satisfied. I’ll definitely be back for any servicing needed. Thanks again!
Sean Spaulding
Sean Spaulding

BMW Maintenance And Repair Center In Pompano Beach

Foreign Affairs Motorwerks has a rich history of maintaining, modifying, and racing German cars. When it comes to looking for the best place to have your BMW serviced or repaired, look no further! Our world-class facilities and team of ASE-certified mechanics will make sure your BMW keeps running like the day it left the factory floor.

So what are you waiting for? Reserve your BMW spot today by calling us at (954) 746-0488.

Spread the love

Schedule an Appointment

    *required fields

    Requested Appointment Time:

    Reason For Appointment:




    Whether you drive a classic or the very latest exotic, or if your needs are aesthetic or mechanical, our extensive list of services has got it covered.

    Give us a call today (954) 746-0488