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BMW Specialists · Snellville, GA · Since 2010

BMW Repair in
Snellville, GA

Most people find us because something on their BMW is behaving oddly and the last shop wanted to start replacing parts to find out why. We diagnose first, using the same software the dealer runs, and tell you what we actually found.

CARFAX 2025 Top-Rated Service Center: German Performance
  • 4.8-star CARFAX rating
  • 180+ Google reviews
  • 15+ years in business
  • Genuine BMW parts and fluids
Why people call us

WHAT USUALLY BRINGS
A BMW IN

Almost everyone who calls is somewhere in one of these three situations.

01

A warning you can't interpret

BMW dashboards report symptoms, not causes. A drivetrain malfunction message can mean a coil, a fuel injector, a boost leak or a timing issue, and a generic code reader will not tell them apart.
02

A repair bill that keeps growing

The expensive version of a cheap diagnosis is paying for two or three parts before the right one gets replaced. That is the pattern we most often hear about from people calling us second.
03

Nobody explaining the why

Being told a car needs a part is not the same as understanding what failed and what happens if it waits. You should get both.
BMW services

WHAT WE DO
ON YOUR BMW

Every job on a BMW starts on ISTA, the factory software, and ends with a written 12-month, 12,000-mile warranty.

01

Diagnostics, electrical and the battery

Every job starts on the factory software. ISTA talks to every control module, shows live data and walks the technician through BMW's own test plan for the fault, which is how a drivetrain malfunction gets traced to one coil, one injector or one boost leak rather than a parts list. Electrical faults get the same treatment: a parasitic-draw test when the battery keeps dying, and a new AGM battery of the correct rating registered to the Intelligent Battery Sensor, because an unregistered battery is overcharged as if it were the old one and dies early. You get a written report with photographs before anything is approved. Check Engine Light for every German make →
02

Oil service to the Longlife approval

BMW's Longlife specifications are not interchangeable: LL-01 for most of the older gasoline range, LL-04 for the diesels and many turbocharged engines, LL-17 FE+ for the newest B-series. We fill the approval BMW lists for your engine code, fit an OEM cartridge filter with new O-rings, set the level electronically with the engine warm, check the three leaks these engines are known for, and reset Condition Based Service properly. The turbocharged N20, N55, B48, B58 and every M engine are better served at 7,000 to 10,000 miles than the 15,000 the reminder will stretch to. German Car Oil Change for every German make →
03

Cooling system: pump, thermostat, tank

Plastic is the weak point. The electric water pump on the N52, N54 and N55, the map-controlled thermostat, the expansion tank and the radiator end tanks all age on a schedule and fail gradually, then suddenly. We pressure-test the system cold to find a seep before it is a puddle, replace the pump and thermostat together when one has failed, and fill with the BMW-specification coolant, never a universal product mixed into it.
04

Suspension: thrust arms, EDC, air springs

On the E-chassis 3 and 5 Series the hydraulic thrust arm bushings fail with a shimmy under braking; on the F and G cars the tension struts do the same. Cars with Electronic Damper Control need the correct adaptive damper and, on some models, coding afterwards. The rear air springs on the X5 and X6 crack with age and a car that sits low at the back overnight is telling you. Every repair ends with a four-wheel alignment to BMW's figures.
05

Transmission service on the ZF 6HP and 8HP

The fluid BMW once called lifetime is not. We drain, inspect the pan for debris, replace the filter and gasket, refill with the ZF-approved fluid and set the level at the specified temperature, then reset the adaptations so the car relearns its shifts. Harsh or delayed shifts are tested at the mechatronic unit and solenoids before anything is condemned; a valve body repair is often the answer, a rebuild rarely the first one. German Car Transmission Repair for every German make →
06

Spark plugs, coils and misfires

A misfire is diagnosed on live data before anything is replaced, because plugs, coils, injectors and compression all produce one. The N20, N54, N55, B58 and S55 each take a different plug and heat range; we fit the OEM specification, test every coil while the cover is off, check the valve cover gasket and plug tubes for the oil that kills coils, and road-test before the car leaves. German Car Tune-Up for every German make →
Known weak points

WHAT WE LOOK FOR
ON A BMW

Every marque has its own failure patterns. Knowing them is the difference between diagnosing a car and experimenting on it.

01

Cooling system failures

Plastic thermostat housings, water pumps and expansion tanks are a known weak point across the N-series and B-series engines. They tend to fail gradually and then suddenly, which is why we pressure-test rather than wait for a leak to be visible.
02

Oil leaks from the valve cover and filter housing

The gaskets harden with heat and age. Oil dripping onto a hot exhaust is the burning smell owners usually describe, and catching it early keeps it a gasket job rather than a contaminated belt or damaged sensor.
03

Timing chain concerns on N20 and N26 engines

Chain guide wear on certain model years produces a distinctive rattle on cold start. This is worth diagnosing promptly, because the failure mode is severe.
04

Carbon buildup on direct-injection engines

No fuel washes the back of the intake valves, so deposits accumulate and cause rough idle, misfires and lost power. Walnut blasting removes them without damaging the port.
05

Electrical faults and battery registration

A new battery must be registered to the charging system or the car will overcharge it and shorten its life. It is a coding step, not a parts step, and it is routinely skipped.
Reviews

WHAT PEOPLE
ARE SAYING

4.8 stars on CARFAX. 4.5 stars across 180+ Google reviews.

Nageeb Alghoul

Local Guide · 25 reviews · 34 photos

Great price

I bought my BMW secondhand and it came with a whole list of issues, so I brought it to Zayd and his team and I'm so glad I did. They fixed my bumper, took care of some engine repairs, and even helped me install customizations including a new steering wheel, front lip, bumper, and side skirts. The whole team was great to work with from start to finish. Honest, skilled, and they clearly take pride in their work. Anytime I need anything for my car, this is where I'm going. Highly recommend!

Nageeb’s white BMW with a cat on the hood Nageeb’s BMW parked beside a lit bridge at night Nageeb’s white BMW at a coastal overlook

Sahir Razi

8 reviews · 1 photo

I had an excellent experience at this shop. I brought my car in, and from start to finish the service was outstanding. The team was professional, honest, and took the time to explain everything they were doing. They did an absolute 10/10 job, and the quality of the work exceeded my expectations. Their pricing was also very fair, especially considering the level of service and attention to detail. It’s hard to find a shop you can truly trust, but these guys definitely earned my business. I highly recommend them to anyone looking for reliable, high quality work on their German vehicle. I’ll definitely be coming back!

Common Questions

BMW REPAIR
FAQ

Do I have to take my BMW to the dealer for service?

No. Under the Magnuson-Moss Warranty Act a dealer cannot void your factory warranty because an independent shop performed routine maintenance or repairs, provided the work is done correctly with appropriate parts. We document everything so your records are dealer-presentation ready.

Do you use the same diagnostic software as a BMW dealer?

Yes. We run ISTA, which gives us access to every control module, live data, adaptations and coding, rather than the generic fault codes a basic OBD-II scanner reads.

What is the drivetrain malfunction message on my BMW?

It is the car protecting itself after detecting a fault it considers serious enough to reduce power. The underlying cause varies widely -- ignition, fuel delivery, boost control and sensors are all candidates -- so it needs a proper scan rather than a guess.

How often does a BMW need an oil change?

Condition Based Service will stretch the reminder toward 15,000 miles. On the turbocharged N20, N55, B48 and B58 engines and on every M engine we recommend 7,000 to 10,000 miles or once a year, because oil that has spent a year in a hot turbocharged engine is not the oil that went in. We set the reminder to the interval we recommend and tell you why.

Why does a new BMW battery need to be registered?

The Intelligent Battery Sensor tracks the battery's age and adjusts the charging strategy to it. Register the new battery and the car charges it correctly; skip it and the alternator treats the new battery as an old one and overcharges it, which shortens its life. Registration is done through ISTA and is part of every battery we fit.

Can you reset the BMW service indicator?

Yes. Every BMW service we perform includes the correct Condition Based Service reset, so your dashboard reflects what has actually been done.

NOT SURE WHAT'S WRONG?
THAT'S THE POINT OF CALLING.
Describe what the car is doing. We'll tell you what we'd check first.
Service My Car
4.8-Star on CARFAX
15+ Years in business
1-Year service
warranties
Any German make

THE SERVICES
WE PERFORM

Models we service: 1, 2, 3, 4, 5, 6, 7 and 8 Series, X1 through X7, Z4, and the full M range.

BMW guides

FROM THE
TECHNICIANS

What we have learned on the BMWs that come through the shop, written down: what to maintain, how we diagnose a symptom, what moves a bill, and jobs from our own bays. All repair guides →

Get Started

SNELLVILLE'S BMW
SPECIALISTS

German Performance has worked only on German cars since 2010, more than 10,000 of them through this shop. The technicians are ASE-certified and Mercedes-Benz factory-trained, one an ASE Master Technician with the advanced engine diagnostics certification, and every BMW repair leaves with a written 12-month, 12,000-mile parts-and-labor warranty. Serving Snellville, Loganville, Grayson, Lawrenceville and all of Gwinnett County. German Performance is an independent German auto repair shop in Snellville, GA that works on BMW and four other German makes, and nothing else.