Mercedes-Benz Repair & Maintenance Services

Mercedes-Benz Maintenance

We have the tools and expertise required to perform maintenance on all Mercedes-Benz models, from oil changes to transmission services.

Lowering Spring Installs

All Mercedes-Benz Maintenance
- Oil changes, various fluid services, etc
- Tire swaps, mount and balances
- Brakes
- Electrical such as lights, alternators, spark plugs, coil packs & distributors
- Belts & timing chain

Mercedes-Benz Repairs

We have the hands on industry experience required for any Mercedes-Benz repair with a team of 310S licensed technicians.

Mercedes-Benz Repair

All Mercedes-Benz Repairs
- Engine swaps, transmission swaps, driveline repairs
-Bearings, ball joints
- Valve covers, valve adjustments etc
- Cooling such as radiators, water pumps, thermostats etc

Warranty Approved

All of our repairs and regularly scheduled maintenance is BMW warranty approved giving you peace of mind knowing your original warranty is intact. 

Mercedes Repair

On top of our OEM warranty approved services, all of our repairs come with standard 1 year warranty on the labour.

Most parts also come with a standard 1 year warranty meaning you can drive confidently knowing you're covered at all times.

Our Locations

Want to get in touch or book an appointment? Use the buttons below!

See what our customers have to say!

Parts Plug Oshawa4.8
Based on 270 reviews
dante cuadrossegovia
Service is excellent, inspection is thorough, service is delivered promptly and pricing is reasonable. Also, their staff is gentle, friendly and patient with customers with no technical knowledge. My wife is a bit skittish when visiting mechanics in general, I advised her to take her car to Parts plugs due to engine light on, she did it today and loved the attention, she is changing mechanic moving forward!
Response from the owner:Always happy to help Dante!
Scott Everett
Best place in Durham Region to get e98 fuel. Great guys and service. Be back for more!
Photo From Customer Review
Response from the owner:See you next season Scott!
Yen Tso
Aiden diagnosed and repaired a tricky issue with my Mazda3 Sport. I’m so impressed with his expertise!
Khurd Dhapia
Great experience! Very helpful and honest people. You saved me from spending a lot of money and from so much stress. My car is scheduled for repair under extended warranty. Thank you so much! I highly recommend Parts Plug ❤️
Response from the owner:Fantastic, i'm happy Subaru did the right thing and i'm glad we saved you some money!
Malique Taylor
Highly recommend this repair shop, reliable and knowledgeable staff. Thank You Nick & Ammar for your help once again!
Response from the owner:Always here to help!
Temur Khan
Was at the track mosport for the weekend. Needed to reset my steering wheel sensor to get back on the track. They let me use their autel scan tool and saved my weekend trip. Nice guys huge shoutout from washington DC 🙂
Response from the owner:Glad we could save your weekend on the track, hope you guys had fun!
C hill
I've been having a very good experience with them. Very patient and knowledgeable .They Changed my 2012 Honda Civic SI clutch at a reasonable price.Definitely trying to do all my mechanical repairs with them Thanks parts plug 🙏
Response from the owner:Always happy to help!
s m
Very quick and timely service, phone call updates throughout, same day repairs
Russell Percival
Absolutely fantastic service. Answered my questions and addressed my concerns. These guys know there stuff. I got a PRL high volume air intake installed in my 2024 Honda Civic sport sedan. "Yeah yeah I know." Wasn't chasing gains or trying to make my car super fast because it's not. Although after the installation the car sounds fantastic. I'm extremely happy with the noise it makes now. Sounds sportier with a little angry growel. Like I said I'm not chasing gains or trying to race anybody. These guys did a fantastic job and it was a comfortable experience. There is a difference and it's noticeable no huge power gain but is a bit peppier sounds great. Thanks to the guys at parts plug
Response from the owner:Always happy to help Russel, thanks!
Yuwen Wu
All the employees are very nice and very professional.
ItzRoy K
Amazing service—fast, thorough, and reasonably priced. I went in for brake work and issues with my turbo and power loss, and they fixed everything perfectly. The team was professional, kept me updated throughout, and delivered high-quality results. Highly recommend for any car repairs!
Haris Hussain
Amazing Service. I come all the way from Halton just to get my car serviced by them. They treat your car as one of your own.
Karl Boco
My experience at Parts Plug was outstanding! The group is very professional, well-informed, and effective. The staff is amiable and made sure I understood the job being done by taking the time to thoroughly explain everything to me. For anyone looking for trustworthy maintenance I definitely recommend Parts Plug. I will most certainly be coming back for any of my future performance needs!
Response from the owner:Thanks Karl!
Khuram Khan
These guys are solid. I took my BMW X7 here and the entire process was seamless from start to finish. They provided a detailed quote by email beforehand, and there were no surprises, hidden fees, or unnecessary upselling. Honest, professional service and a great overall experience. Highly recommended.
Response from the owner:Happy to help Khuram, hope to see you and your X5 soon as well!
Julio Antonio
I needed to change my car battery last minute and they were able to fit me in and help me out. Fast friendly and honest service, highly recommend!
Alex Beckman
Great shop great prices 👍
Response from the owner:Thanks Alex glad to help!
Ka Po Tsang
I just called if it’s time to replace brake pads and rotor since I heard strange sound when I braked. They are so efficient to tell me to come right away to check and get quotation. They are very nice and helpful with my car issue.
Response from the owner:Always happy to help!
Lee Robb
Just had a small part install on my car and I’m definitely happy with was done. Guys are knowledgeable and I’ll definitely be back to get more work done on my car.
Tmhlc94
Brought my truck in to change the exhaust so i could get a deeper sound and a little louder . Amar listened to what i wanted and ordered what was needed . Part took a little longer but no worries they were prompt in keeping me informed . Sounds amazing and the decimal level comes in a little louder . I could not be happier . Amazing service very polite from all employees that i interacted with , i actually felt like they cared about what i wanted. Also as i was leaving i was told to see if its the sound im looking for as they could make it louder . These guys a great. Highly recommend. Been back for headlight and taillight install . Again they did a fantastic job
Response from the owner:Thank you Lorne i'm glad you're liking the exhaust! – Amar
Sky Gallagher
I had my Jettas engine replaced by these guys a few years ago. I always send anyone I know with big issues to them to fix it up for an affordable price. Figured I should write a review about my experience. Thank you's again 👏
Response from the owner:Thanks for your confidence Sky!
Ian Akam
I brought in my 2013 Audi with 230K on the odometer. They listened to my concerns, and were happy to explain my options to me. They kept to their schedule and did the job (quite a big one) in record time. They even had me come back in 2 wks to ensure all was still well. They did a great job at a great price and were a pleasure to work with. Thank you Parts Plug team!
Keaton Booth
Tuned my car and fixed my exhaust leak while I waited. Very quick, friendly, and local! 100% recommend
Photo From Customer Review
Response from the owner:Glad we could help you out and fix the S3! – A
Daljit
2024 updated I have been their customer for 2-3 years and i have never been to any other shop. One of the best in business. No other shop in the GTA can beat their price and quality. They changed the clutch and rear main seal on my car in no time. I would recommend them 100% eyes closed to anyone looking to get their repaired from them. BEST IN BUSINESS
Photo From Customer Review
Response from the owner:Thanks Daljit!
Taylor Oake
Quick turnaround and great service will be going back for all my needs
M Stephens
Great guys. Great service. They truly care about what they do
Response from the owner:Always happy to help! -J

Mercedes-Benz vehicles are engineered to deliver a refined balance of performance, comfort and technology. Maintaining that experience requires more than basic automotive service—it requires technicians who understand Mercedes-Benz systems, service requirements and common repair concerns.

Parts Plug provides comprehensive Mercedes-Benz service, Mercedes-Benz repair, diagnostics, maintenance and performance upgrades for a wide range of Mercedes-Benz models. Whether your vehicle needs routine maintenance, a warning light diagnosed, a complex mechanical repair or carefully selected performance modifications, our team can help keep it operating at its best.

We service daily driven Mercedes-Benz sedans and SUVs, luxury models, performance-oriented Mercedes-AMG vehicles and platforms ranging from older enthusiast cars to current-generation models. Our approach combines accurate diagnostics, quality parts and clear recommendations based on the condition and needs of your vehicle.

Need Mercedes-Benz service or repairs? Contact Parts Plug today to request an appointment.

Complete Mercedes-Benz Maintenance and Repair

Your Mercedes-Benz is made up of interconnected mechanical, electrical and computer-controlled systems. When a problem develops, replacing parts without properly identifying the cause can lead to unnecessary expense and repeat repairs. We take a methodical approach to Mercedes-Benz diagnostics and service so that the work we recommend addresses the actual condition of the vehicle.

Our Mercedes-Benz services include:

  • Mercedes-Benz oil changes and scheduled maintenance

  • Mercedes-Benz brake service, brake pad replacement and brake rotor replacement

  • Mercedes-Benz diagnostics, warning-light diagnosis and electrical repair

  • Mercedes-Benz engine repair, oil-leak repair and cooling-system service

  • Mercedes-Benz 9G-TRONIC, 7G-TRONIC and automatic transmission service

  • Mercedes-Benz 4MATIC and all-wheel-drive service

  • Mercedes-Benz suspension, steering and wheel-bearing repair

  • Mercedes-Benz battery replacement, registration and charging-system diagnosis

  • Mercedes-Benz air-conditioning and climate-control service

  • Mercedes-Benz exhaust repair and custom exhaust fabrication

  • Mercedes-Benz tire installation, balancing, rotation and seasonal service

  • Mercedes-Benz performance upgrades, tuning support and modifications

  • Pre-purchase inspections and comprehensive vehicle inspections

Mercedes-Benz Oil Changes and Scheduled Maintenance

Regular maintenance is one of the most effective ways to protect the performance, reliability and value of your Mercedes-Benz. We provide Mercedes-Benz oil changes and scheduled maintenance using service procedures and fluids selected for the vehicle’s specific requirements.

Depending on your Mercedes-Benz’s model, age, mileage and service history, maintenance may include:

  • Engine oil and oil-filter replacement

  • Engine air-filter replacement

  • Cabin air-filter and microfilter replacement

  • Spark-plug replacement

  • Brake-fluid service

  • Engine coolant service

  • 9G-TRONIC, 7G-TRONIC, automatic transmission and differential-fluid service

  • 4MATIC differential and driveline service where applicable

  • Belt, hose and fluid inspections

  • Mercedes-Benz Service A and Service B maintenance

  • Service-interval display review and maintenance reset

We can also review the vehicle’s current condition and available maintenance history to help prioritize services. Instead of treating every Mercedes-Benz the same, we consider how the vehicle is driven, its mileage and any known issues that may require attention.

Mercedes-Benz Brake Service and Repair

Your Mercedes-Benz’s braking system plays a major role in both safety and driving feel. If you notice squealing, grinding, vibration, a soft brake pedal, reduced braking performance or a brake warning message, the system should be inspected.

Our Mercedes-Benz brake services include:

  • Mercedes-Benz brake inspection

  • Front and rear brake-pad replacement

  • Brake-rotor replacement

  • Brake-fluid flushes

  • Brake-caliper diagnosis and replacement

  • Brake-hose and brake-line repair

  • Parking-brake service

  • ABS and brake warning-light diagnosis

  • Performance brake upgrades

We assess the condition of the relevant components before recommending repairs and can provide suitable options based on the vehicle and how it is used. Whether you need everyday replacement brakes or an upgraded braking setup for a performance build, Parts Plug can help.

Mercedes-Benz Diagnostics and Check Engine Light Repair

A Mercedes-Benz warning light tells you that a control module has detected a fault, but a fault code alone does not always identify the failed component. Proper diagnosis may require testing circuits, sensors, mechanical systems, live data and the conditions under which the fault occurred.

We provide Mercedes-Benz diagnostics for concerns including:

  • Mercedes-Benz check engine lights

  • Engine and emission-control warnings

  • Rough running, misfires and loss of power

  • No-start and intermittent starting concerns

  • Battery discharge and charging problems

  • ABS, traction-control and chassis warnings

  • Airbag and restraint-system warnings

  • Electronic and communication faults

  • Overheating and cooling-system warnings

  • Transmission and 4MATIC faults

Our goal is to identify the underlying problem before recommending a repair. This diagnostic-first approach is especially important on modern Mercedes-Benz vehicles, where many systems communicate with one another and a single fault can trigger several warning messages.

Mercedes-Benz Engine Repair and Oil-Leak Diagnosis

Mercedes-Benz engines deliver excellent performance, but age, mileage, heat and maintenance history can contribute to oil leaks, cooling-system concerns, ignition problems and other mechanical issues. Early diagnosis can often prevent a manageable repair from becoming a more serious failure.

Our Mercedes-Benz engine repair services include:

  • Valve-cover and valve-cover-gasket replacement

  • Oil-filter housing and oil-cooler leak repair

  • Oil-pan gasket and oil-leak repair

  • Cooling-system pressure testing

  • Water-pump and thermostat replacement

  • Radiator, coolant-hose and expansion-tank replacement

  • Ignition-coil and spark-plug replacement

  • Fuel-system and injector diagnosis

  • Turbocharger and boost-leak diagnosis

  • Intake and vacuum-leak testing

  • Intake-valve carbon cleaning for applicable direct-injection engines

  • Timing-chain, timing-belt and timing-system diagnosis

  • Crankcase ventilation system repair

  • PCV and oil-separator diagnosis

  • Engine mount replacement

  • Compression, leak-down and mechanical engine testing

If your Mercedes-Benz is leaking fluid, overheating, misfiring, smoking, making an unusual noise or displaying a check-engine or engine warning, contact us to arrange an inspection.

Mercedes-Benz 9G-TRONIC, 7G-TRONIC, Transmission and 4MATIC Service

Smooth power delivery depends on the condition of the transmission, differentials, all-wheel-drive system, axles and related driveline components. Mercedes-Benz vehicles use several transmission and 4MATIC system configurations, so the correct service procedure depends on the exact model and drivetrain. Symptoms such as harsh shifting, delayed engagement, vibration, shuddering, clunking or fluid leaks should be investigated before the concern becomes more severe.

Our Mercedes-Benz transmission and driveline services include:

  • 9G-TRONIC and 7G-TRONIC fluid and filter service

  • Automatic transmission-fluid and filter service

  • Transmission pan and gasket replacement

  • Transmission leak diagnosis

  • Transmission fault diagnosis

  • Valve-body, conductor-plate and shift-quality diagnosis

  • Manual transmission and clutch service

  • Differential-fluid service

  • 4MATIC driveline service where applicable

  • 4MATIC and all-wheel-drive diagnosis

  • Driveshaft and centre-support-bearing repair

  • CV axle and wheel-bearing replacement

  • Differential and driveline diagnosis

We determine the appropriate service or repair based on the Mercedes-Benz model, transmission type, symptoms and condition of the fluid and related components.

Mercedes-Benz Suspension and Steering Repair

Mercedes-Benz vehicles are known for controlled handling and responsive steering. Worn suspension or steering components can cause clunking, looseness, vibration, uneven tire wear and a noticeable decline in ride quality.

Our Mercedes-Benz suspension and steering services include:

  • Control-arm and bushing replacement

  • Ball-joint and tie-rod replacement

  • Shock and strut replacement

  • Coil-spring replacement

  • AIRMATIC air-strut and air-spring replacement

  • AIRMATIC compressor, valve-block and leak diagnosis

  • Adaptive suspension warning diagnosis

  • Wheel-bearing replacement

  • Sway-bar link and bushing replacement

  • Steering-system diagnosis and repair

  • Suspension-noise diagnosis

  • Lowering springs, coilovers and performance suspension upgrades

  • Ride-height and fitment consultation

After identifying the worn components, we can recommend an appropriate repair for a comfortable daily driver or a more performance-focused suspension setup.

Mercedes-Benz Battery, Electrical and Charging-System Service

Modern Mercedes-Benz vehicles rely on battery-management and energy-control systems that require the correct battery type and installation procedure. Some applications also require battery adaptation, system resets or auxiliary-battery diagnosis.

We provide:

  • Mercedes-Benz battery testing and replacement

  • Battery adaptation and system reset where required

  • Auxiliary-battery diagnosis and replacement

  • Alternator and charging-system testing

  • Parasitic battery-drain diagnosis

  • Starter and no-start diagnosis

  • Lighting and electrical repair

  • Sensor, switch and wiring diagnosis

  • Control-module and network fault diagnosis

If your Mercedes-Benz displays a battery discharge warning, has difficulty starting or develops intermittent electrical problems, our team can test the system and identify the source of the concern.

Mercedes-Benz Air Conditioning and Climate-Control Repair

If your Mercedes-Benz’s air conditioning is not cold, airflow is weak or the climate-control system behaves inconsistently, we can inspect and diagnose the system.

Mercedes-Benz climate-control services may include:

  • Air-conditioning performance testing

  • Refrigerant leak detection

  • A/C recharge service where appropriate

  • Compressor, condenser and evaporator diagnosis

  • Blower-motor and resistor repair

  • Heater and climate-control diagnosis

  • Cabin air-filter and microfilter replacement

Rather than simply adding refrigerant to a leaking system, we work to determine why performance has declined and recommend the appropriate repair.

Mercedes-Benz Tires and Wheels

The correct tires play an important role in Mercedes-Benz handling, braking, comfort and 4MATIC operation. We provide tire services for factory and modified Mercedes-Benz vehicles, including:

  • Summer, winter and all-season tire installation

  • Tire mounting and balancing

  • Tire rotation

  • Flat-tire assessment and repair

  • Wheel and tire fitment guidance

  • Performance tire recommendations

  • Tire-pressure monitoring system service

  • Inspection of uneven or abnormal tire wear

For 4MATIC vehicles, tire size, tread depth and overall rolling diameter require particular attention. We can help select a suitable tire setup for the vehicle and its intended use.

Mercedes-Benz Performance Upgrades and Customization

Parts Plug is both an automotive repair facility and a performance-focused shop. That means we can consider reliability, maintenance and supporting components when planning your Mercedes-Benz upgrades.

Mercedes-Benz performance services may include:

  • Engine and ECU tuning support

  • Intake and charge-pipe upgrades

  • Intercooler and cooling upgrades

  • Downpipes and exhaust upgrades

  • Custom exhaust fabrication

  • Turbocharger and supporting modifications

  • Suspension and handling upgrades

  • Performance brake upgrades

  • Wheel and tire fitment

  • Maintenance and inspections for modified Mercedes-Benz vehicles

Every build should be planned around the driver’s goals, budget and intended use. Whether you want a refined daily driver, improved sound and response or a more extensive performance package, we can help create a practical upgrade plan.

Mercedes-Benz Models We Service

We work on a broad range of Mercedes-Benz cars, coupes and SUVs, including:

  • Mercedes-Benz A-Class, B-Class and CLA

  • Mercedes-Benz C-Class, E-Class and S-Class

  • Mercedes-Benz CLE, CLS and SL

  • Mercedes-Benz GLA, GLB, GLC, GLE and GLS

  • Mercedes-Benz G-Class

  • Mercedes-AMG models

  • Mercedes-Benz 4MATIC vehicles

  • Older and newer turbocharged Mercedes-Benz platforms

  • Selected hybrid and electric models for supported services

Service availability can vary by model, system and repair. Contact us with your Mercedes-Benz’s year, model and concern so our team can help determine the next step.

Why Mercedes-Benz Owners Choose Parts Plug

Mercedes-Benz-Focused Knowledge

We understand the maintenance needs, common concerns and performance potential of Mercedes-Benz vehicles. That familiarity helps us approach each service or repair with the platform in mind.

Diagnostics Before Parts Replacement

Modern Mercedes-Benz vehicles require more than basic code scanning. We take the time to investigate the cause of the concern and provide repair recommendations based on our findings.

Quality Parts and Fluids

We use appropriate fluids and quality components selected for the application. Available options may include OEM, original-equipment-supplier and proven aftermarket parts depending on the repair and the customer’s goals.

Maintenance and Performance Under One Roof

Because we handle both repairs and modifications, Mercedes-Benz owners do not need to choose between a general repair shop and a performance shop. We can maintain a stock vehicle, troubleshoot a modified Mercedes-Benz or help plan a complete build.

Clear Recommendations

We explain what we find, identify urgent concerns and help prioritize additional maintenance or repairs. Our goal is to give you the information needed to make a confident decision about your Mercedes-Benz.

Book Your Mercedes-Benz Service

Whether you searched for a Mercedes-Benz mechanic, Mercedes-Benz repair shop, Mercedes-Benz oil change, Mercedes-Benz brake service, Mercedes-Benz diagnostics, Mercedes-Benz transmission service or Mercedes-AMG performance shop, Parts Plug is ready to help.

Contact us today to request an appointment. Tell us your Mercedes-Benz’s year and model, the service it needs and any symptoms or warning messages you have noticed.

Request your Mercedes-Benz service appointment with Parts Plug today.

Frequently Asked Questions About Mercedes-Benz Service

Do you service Mercedes-Benz vehicles outside the dealership?

Yes. Parts Plug provides maintenance, diagnostics and repair services for Mercedes-Benz cars and SUVs. We can review the service your vehicle requires and document completed maintenance.

How often should I service my Mercedes-Benz?

Service intervals depend on the model, engine, mileage, driving conditions and maintenance history. Mercedes-Benz’s onboard maintenance system can provide useful reminders, but vehicle condition and time-based service requirements should also be considered. We can inspect your Mercedes-Benz and recommend an appropriate maintenance plan.

Can you diagnose a Mercedes-Benz check-engine or engine warning?

Yes. A check-engine or engine warning can be caused by several engine, fuel, ignition, boost, emissions or electrical concerns. We perform testing to determine the cause before recommending repairs.

Do you replace Mercedes-Benz main and auxiliary batteries?

Yes, for supported applications. We can test and replace main or auxiliary batteries and perform applicable adaptations or system resets.

Do you service Mercedes-Benz 9G-TRONIC, 7G-TRONIC and 4MATIC systems?

Yes. We offer 9G-TRONIC and 7G-TRONIC fluid service, automatic transmission service, transmission fault diagnosis, differential service and applicable 4MATIC driveline maintenance.

Can you work on modified Mercedes-Benz vehicles?

Yes. We service, diagnose and upgrade modified Mercedes-Benz vehicles. Please tell us about any existing modifications when booking so we can evaluate the vehicle accurately.

Do you install Mercedes-Benz performance parts?

Yes. We can assist with selected intake, exhaust, cooling, suspension, brake, wheel, tire and power-related upgrades. Recommendations depend on the model, current modifications and intended use.