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Even the smallest problem can be fatal
Give Us a Call, Toll-Free
We’ll schedule a convenient appointment
Take it In, We’ll Take a Look
Our experts will run precise diagnostics
Experienced Mechanics Repair the Vehicle Quickly
We’ve seen it all, no problem is unsolvable
Thorough and Effective Repair
You’ll get your vehicle back in no time
 Count On Us For All Your Vehicle’s Needs
Whether it is an oil change or a serious mechanical problem, we got it covered


Our auto repair shop is conveniently located in Sussex, Wisconsin. Our quality ASE (Automotive Service Excellence) certified mechanics at Paul's Certified Auto Repair LLC employ today’s latest automotive technology and are equipped to handle all major and minor auto repair services on foreign and domestic vehicles. Below are some of the many auto repair services that we offer:  

  • Air Conditioning
  • Air Filter Replacement
  • Axle Replacement
  • Battery Replacement
  • Belts & Hoses
  • Brake Systems
  • Classic Vehicles
  • Clutch Repair
  • Computer Diagnostics
  • Custom Brake Lines
  • Custom Fuel Lines
  • Electrical
  • Exhaust System
  • Fuel Injection
  • Light Replacement
  • Oil Change
  • Power Steering
  • Preventative Maintenance
  • Radiator Service
  • Restoration Projects
  • Suspension Work
  • Tire Pressure
  • Wheel Alignment


  • Computerized Engine Diagnostics
  • Fuel System Diagnostics
  • Wisconsin Emission Diagnostics


  • Major and Minor Engine Repair
  • Steering and Suspension Repairs
  • Tire Replacement or Repairs


  • Computerized Wheel Alignment
  • Expert Brake Service


Oil and Oil Filter Service
Experts recommend changing the oil and oil filter in your vehicle every 3 months or 3,000 miles, whichever is first. It’s an essential way to maximize engine protection.

Cooling System Service
Our team will flush the cooling system, conduct a pressure test, check hoses and cap and check connections.

Air Conditioning Service
One of our trained air conditioning specialists will inspect your car’s air conditioner, all AC lines, evaporator and compressor for leaks and wear.

Driveline Service
We will remove old worn-out gear oil from the front and rear differential and transfer case.

Fuel/Air Induction Cleanup
Using specialized equipment, our technicians will quickly and effectively clean intake manifolds, ports, intake valves and combustion chambers and install injector cleaning additives in tanks. This service will restore lost power and performance and will reduce harmful exhaust emissions.

Power Steering Flush
Our technicians use a powerful cleaner to dissolve gum and varnish in your car’s power steering unit. Next, we will flush old, worn-out contaminated fluid and install fresh new fluid fortified with a special antioxidant and anti-wear ingredients to prevent expensive mechanical failure.

Factory -Scheduled Maintenance
We perform complete maintenance inspection as per the manufacture’s recommendations.

Ignition tune-ups as well as fuel injection tune-ups to insure maximum fuel economy and drivability.

Computerized Engine Diagnostics
We perform diagnostics and optimize emissions stability for safe, clean driving.

Fuel System Diagnostics and Repair
Diagnostics as well as repairs to keep your vehicle operating as long and safely as needed.

Major and Minor Engine Repair
Includes repairing or replacing parts as needed or requested.

Expert Brake Service
Hydraulic and mechanical brake repairs performed as needed.

Heating and Air Conditioning Repairs

Computerized Wheel Alignment
Proper alignment of your vehicle’s steering and suspension will increase the longevity of your tires.

Wisconsin Emission Diagnostics and Repairs
Our experts in diagnostics and repairs will satisfy your emissions concerns. We have a 100% first time pass rating with the State of Wisconsin.

Exhaust System Repairs and Replacement

Tire Replacement or Repairs
We have the capability of getting most major brands and a great number of 2nd line tires. We mount and balance all sizes.

Coolant Flush and Repairs
This area of repair is very important in maintaining the correct engine temperature of your vehicle to extend its lifespan.

Transmission Flush and Repairs
Flushing transmission systems is typically a neglected area of maintenance. Ignoring the need for this service may result in transmission failure – one of the most expensive breakdowns any car can face.

Steering and Suspension Inspection and Repairs
Steering/Suspension and safety/stability go hand in hand with your vehicle. We are extremely knowledgeable in this area and can help ensure the safety of you and those around you on the road.