
Lowell’s Trusted Shop for Mercedes Engine Maintenance & Repairs
by Gervais Auto Group September 9, 2025Let’s be honest—owning a Mercedes-Benz isn’t simply owning a car. It’s all about precision engineering, smooth-as-silk performance, and a driving experience that’ll make you want to take the long way home. But when something goes wrong under the hood, that luxury experience? It disappears fast.
Perhaps your check engine light just came on, and you’re praying it’s nothing too serious. Perhaps your engine is not as smooth as it once was, or worse — there’s an unusual noise you can no longer ignore. And now you are sitting here with the worst headache of all: finding someone you can trust to make it right again.
Here’s the thing — Mercedes engines are not like any other. You can’t simply bring it into a shop and cross your fingers. These vehicles require specialized care, the appropriate tools, and mechanics who know exactly what they’re doing. That’s where we come in.
At Gervais Auto Group, we are not just one more repair shop but your Mercedes-Benz experts in Lowell. From routine maintenance to major engine repairs, our factory-trained technicians know your car from top to bottom. So, if you want your Mercedes serviced by the pros to keep it running like new, you’ve found the right guy.
Our Services
A Mercedes-Benz is more than a car; it’s an investment. Like any investment, it requires intentional maintenance. Mechanics Direct provides specialized maintenance and repairs for your Mercedes engine beyond the usual.
A. Mercedes Engine Diagnostics
That check engine light isn’t for decoration. It could be a minor sensor issue or something that will leave you stranded. We use Mercedes-certified diagnostic tools to determine the specific issue, so you won’t be left wondering what’s wrong.
B. Oil Changes & Fluid Services
Mercedes-Benz engines are filled with high-performance synthetic oil, but no oil — not even the best — lasts forever. Old oil cannot protect your engine; it leads to wear and overheating — not to mention catastrophic failure.
We don’t cut corners. We only use Mercedes-approved synthetic oils and OEM filters to keep your engine running like new.
C. Timing Chain & Belt Repairs
Many Mercedes models use timing chains rather than belts, which should wear better—but that does not mean they are indestructible. That rattling noise in the engine bay is the timing chain letting you know it’s time for service.
Ignoring this could cause an engine failure with catastrophic consequences. Don’t wait until it’s too late. If you hear abnormal sounds from your Mercedes, bring it to us.
D. Turbocharger Repairs & Replacements
Turbochargers are employed in many of Mercedes’s current models to enjoy power and economy. Turbos, however, go to that great garage in the sky over time—yours could leak oil, lose power, or fail.
Here are the symptoms of a bad turbo:
- Loss of power
- A lot of smoke puffing out the exhaust
- A loud whine or whistle
E. Coolant System & Radiator Services
Mercedes-Benz engines are powerful, and with power comes heat. Failing to maintain your cooling system properly can lead to overheating, blown head gaskets, and potential engine damage.
We check and exchange parts, such as radiators, water pumps, and thermostats, to ensure your engine runs at the correct temperature. If your vehicle operates hotter than usual, don’t wait until it’s too late.
F. Fuel System Repairs
Mercedes engines are very sensitive to fuel delivery. Dirty fuel injectors, clogged filters, or a weak fuel pump can steal performance and increase fuel consumption.
Signs of fuel system problems include:
- Rough idling
- Hesitant on acceleration
- Subpar gas mileage
If your car has become sluggish, stop by, and we’ll restore your fuel system to top condition.
Why Choose or Trust Us?
We understand that it’s not easy finding a mechanic you trust. That is the reason we emphasize transparency, quality, and expertise. This is why you should rely on Gervais Auto Group for your Mercedes:
- We Specialize in Mercedes-Benz: Not all mechanics have the training to work on Mercedes-engine cars. Our factory-trained technicians know these vehicles from bumper to bumper.
- Advanced Diagnostics & Quality Parts: Our Mercedes-certified diagnostic tools— the same ones used at dealerships—allow us to effectively categorize problems. We only replace parts with quality parts to restore your vehicle to factory specifications.
- Honest, Transparent Service: There are no hidden fees or unnecessary repairs. We’ll diagnose exactly what’s wrong with your car and provide upfront pricing so that you can make the best decision for your vehicle.
- Personalized Care for Your Mercedes: At the large dealerships, you’re just a number. Here, we listen to your car’s history, needs, and how it drives. That means improved, more personalized service for your particular make.
- A Less Expensive Alternative to the Dealership: Dealerships mark up repairs—sometimes two times what it actually costs to fix the problem. We provide the same expertise and high-quality service to you for a fraction of the cost.
- Preventative Maintenance: We don’t only solve issues—we help you prevent them. Regular oil changes, inspections, and tune-ups can keep your Mercedes running smoothly and save you money on future repairs.
Get the Best Care for Your Mercedes in Lowell
Gervais Auto Group provides engine maintenance and repair for Lowell, North Chelmsford, Chelmsford, Dracut, Tyngsborough, and Westford.
Do not neglect that warning light. Do not wait for small problems to escalate into major repair bills. Come see us, and keep your car running like a Mercedes should.
Whatever you need, call us today or schedule your service online — we are ready to help!