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Key Diesel and Auto Service

5.0

About this business

We offer full-service auto and light truck repair and maintenance, with dealership level quality at a fair price. Our technicians are ASE Master Certified and are able to get you back on the road with confidence. 

Location details

4838 Dietz Rd, Williamston, MI, 48895, United States

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WeekdayScheduleStatus
Mon8:00 a.m. to 6:00 p.m.
Tue8:00 a.m. to 6:00 p.m.
Wed8:00 a.m. to 6:00 p.m.
Thu8:00 a.m. to 6:00 p.m.
Fri8:00 a.m. to 6:00 p.m.
SatClosed
SunClosed
5.091 reviews
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Shelly Kraatz's profile image
Shelly Kraatz 
recommend  Recommended
5 years ago

We were referred to Matt keys by a friend of my husbands And he (Matt) lived up to everything we were told about him He stands Behind his work he's reliable reasonable on he price and his communication is outstanding We would recommend him and his place of business to anyone especially people that are looking to have diesel work done We can't recommend him highly enough 

Amy Sims's profile image
Amy Sims 
recommend  Recommended
5 years ago

Once again Key Diesel delivers! You never know when your vehicle is going to need service and Key Diesel is so accommodating and flexible. We appreciate the great customer service and friendly welcoming atmosphere. Thanks again! 

Robert Reimbold Jr.'s profile image
Robert Reimbold Jr. 
recommend  Recommended
6 years ago

Had a great experience there. My first time there. They identified two issues with ecm the pcm and the glow plug control module. Witch according to the internet was just to replace glow plug module. They also identified a fuel cooler leak. And a return line for the coolant. They also replaced all the glow plugs. Diagnosed and repaired all in one day. Great job. 

Denise Valo-Rose's profile image
Denise Valo-Rose 
recommend  Recommended
6 years ago

Thank you Key Diesel and Transmission for the amazing generosity you showed New Hope Pet Rescue!!! We appreciate the donation of all new tires and an oil change for our transport van!!!! You are amazing and appreciated!!!! Rescue On 

Linda Otto-Phillips's profile image
Linda Otto-Phillips 
6 years ago

Matt is great! I had a bunch of questions and he happily answered them all. Fixed my 07 Acadia quickly & at a reasonable price. Now I can say "I got a guy for that" 

Michelle Sanford Cozart's profile image
Michelle Sanford Cozart 
recommend  Recommended
6 years ago

Amazing trustworthy mechanic. Would absolutely recommend this shop to anyone!!!! 

Alec Kolenda's profile image
Alec Kolenda 
7 years ago

Matt does a great job for my fleet of 15 trucks. Quality work and timely turn around. 

Ken Kittendorf's profile image
Ken Kittendorf 
7 years ago
Kathy Malone's profile image
Kathy Malone 
7 years ago

Cannot recommend Matthew Key and Key Diesel highly enough. He's been doing the work on all our vehicles for about 2 or 3 years now. Has saved us tons of money, cares about whether your vehicle is safe, and balances whether work needs to be done now, can be put off or whether a less-expensive fix can work. I feel safer everytime I drive my now 328,000 mile Suburban out of the shop after an oil change with the okay that we're good to go for another 3000. I think Key Diesel has been taking care of it since 180,000 miled :-) 

Frequently asked questions about Key Diesel and Auto Service

How is Key Diesel and Auto Service rated?

Key Diesel and Auto Service has a 5 star rating with 91 reviews. 

When is Key Diesel and Auto Service open?

Key Diesel and Auto Service is closed now. It will open at 8:00 a.m. 

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