3069 State Hwy 83 Hartford, WI 53027 262-670-9800

Service Department of M&J Auto

Welcome to M&J Auto!

At M&J Auto we offer a variety of services, ranging from basic oil changes and recommended maintenance, to complete diagnostic services. Our technicians are experts in their field; you can feel confident in that your repairs are being performed by qualified, ASE Certified automotive professionals. We believe fair prices, superior service and treating people well leads to lifelong relationships. We are committed to earning your business not only for today but for a lifetime. Below is a partial list of the services we offer:

When you need service, feel free to give us a call 262.670.9800, or click here to schedule a service.

Preventative Maintenance Services

We know your vehicle is a major investment, by performing routine maintenance we can keep your car running at it’s best and help you avoid the surprise of costly repair bills.

Things that should be checked regularly include:

  • Belts
  • Fluids
  • Filters
  • Tires

Fluid Services:

Fluids are essential to your vehicle. Keeping them fresh protects vital parts and components from wear or overheating.

  • Oil Changes
  • Transmission Flush
  • Coolant Flush
  • Differential Oil Changes

Tires & Wheels:

Your tires are the most important part of your vehicle when it comes to performance and safety. They are what connect your car to the road. Let our technicians make sure that they are in top condition.

  • Tire Rotation
  • Mount & Balance

Repair Services:

Sometimes it happens, your vehicle breaks down, usually at the most inopportune time. Let us help. With 3 full service repair bays, our skilled automotive technicians will have your car up and running ASAP.


  • Calipers
  • Rotors / Drums
  • Pads / Shoes
  • Hoses


  • Mufflers
  • Catalytic Converters
  • Exhaust Manifolds
  • Exhaust Pipes And Hangers

Steering And Suspension

  • Shocks/Struts
  • Control Arms
  • Ball Joints
  • Tie Rods

Engine Services:

  • Headgaskets
  • Intake Manifold Gasket
  • Complete Rebuilds

Select Diesel Services

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