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THE MODERN DIESEL GUARANTEE

We offer a 3 month, 4,000 mile warranty.
We also offer a lifetime warranty on most front end parts.

FROM DIESEL REPAIR TO FLEET SERVICE TO ROADSIDE WE HAVE YOU COVERED

Looking for Austin’s most reputable diesel repair and fleet service? Look no further. Since 2015, Modern Diesel has built an incredible base of customers that span from trucking businesses to pizzerias. 

Hands down, if you have a diesel fleet, you’re going to want to check us out. We even do mobile repair if one of your drivers gets stuck on the road.  

Questions about your vehicles? Talk with an expert, you can reach out to us anytime and live 8-5pm M-F.

The modern diesel guarantee

3 Month / 4,000 Mile Warranty

We offer a 3 month, 4,000 mile warranty. We also offer a lifetime warranty on most front end parts.

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Not sure how this place merits even 1 star. Early 90s Dodge 1st gen Cummins. Brought in in January, finally done in May, after over 10,000 dollars. John would not return calls, texts or emails—always a phone problem. Except if one were to call from a different phone, he’d answer. ?? Admittedly, there was an outside vendor on 1 part, but John would never offer an update. We did the homework to find out what the holdup was. The worse part…the Dodge still has leaks, a front end noise, and wipers that don’t work. I emailed the owner directly, and he has not responded. Supposedly, they intend to repair, but, will we have another 3 months and shoddy work? Don’t be taken by their professional knowledge and demeanor.Update….claim they have 3 year warranty, and stand by their work? That’s a no. 4,000 to repair any leaks as stated above.The leaks not their fault…seriously. How does a reputable, honest mechanic replace gaskets, see it leaks, and not tell the customer before they leave? And when the customer returns, oh, that’s not our fault? Further, the truck went dead a few days before. A reputable mechanic found they used the wrong type of screw to ground the negative cable. Who’s writing these positive reviews?
Cherry Sirisi
Cherry Sirisi
02:55 12 May 22
Heroes work here
Aimable Munezero
Aimable Munezero
20:52 29 Apr 22
Outstanding people right here they actually care for the customer.I will never go anywhere else. If you have any diesel truck problems go see John and the guys at modern diesel they will take good care of you thru and thru
Nathan Jones
Nathan Jones
01:30 15 Apr 22
I took my boyfriends truck in not expecting much from a local mechanic shop and they really surprised me. The guys in the office were extremely helpful and informative. They provided me with a ride home during the repairs and finished the job within a reasonable time and in budget. I would definitely recommend.
Julia Dow
Julia Dow
14:59 01 Apr 22
John and the crew were great, diagnosed the truck, got the parts, and fixed the problem. Solid communication through the process. Very much appreciated gentlemen!
Ibkghost
Ibkghost
00:09 19 Mar 22
Excellent customer service and all around great people. Definitely recommend!
Mary Walls
Mary Walls
04:53 25 Feb 22
Gear place to take you diesel truck quick diagnostic and will even find things wrong that you did not know with there head to toe inspection.
Jonathan DeRocher
Jonathan DeRocher
03:13 08 Feb 22
Nothing was done on my truck, they re just good at changing parts, but not to diagnose and make sure what is been replace fix’s the problem or not. My truck was there for a month spend $4,776. Still have the same problem.I purchase all the parts they requested but still have the same problem. They will never call when they say they gonna call you. Will never go back to this place.
Sumaila Amoah
Sumaila Amoah
22:21 10 Dec 21
Great guys took care of my highly modified f250 before our road trip to North west Oklahoma. Thank John and the rest of the crew at Modern Diesel 👍🏽
Dr. BOWDOIN
Dr. BOWDOIN
09:55 22 Nov 21
Guys are awesome if you need any diesel needs call these guys they the truth!!
Edward Chandler
Edward Chandler
21:42 31 Aug 21
Fast efficient and friendly!!
George Jones
George Jones
23:05 30 Aug 21
Best service in town !
oVidius Villa
oVidius Villa
22:34 26 Aug 21
Sergio Davis
Sergio Davis
23:52 25 Aug 21
If I could give them a zero star I would. They didn’t do the work I pay them to do. My Radiator fan has an issue n I pay them to get the job done, they order the part, put it on, same problem. I call freightliner and ask them about the part. Guess what, these guys order the reverse part, wrong one. I just spend 1300 for nothing. Plus my engine light was on, they told me that problem was also fix, two hrs later, the light came right back on. If you guys cannot get the job done, please do not fool the customer, that’s bad business.
Will Dennis
Will Dennis
14:16 23 Aug 21
Rydatime
Rydatime
17:29 15 Jul 21
Let you know when I get my truck back
Eric Isreal
Eric Isreal
00:27 08 Jul 21
Beautiful assistance
Jose Sanchez
Jose Sanchez
05:44 30 May 21
Great service at a great price! The people there share the passion for diesel performance and have a great sense for the small details that set you apart from others!
Colt Thomas
Colt Thomas
02:25 28 May 21
These guys have worked on multiple vehicles for me, from my company trucks to personal trucks, boat and even dirtbikes. They’ve always treated me right and I recommend my friends and family to them. Good people all around. I came in the other day and they were having a company breakfast while discussing some books they read together. 6 stars for the company who treats customers AND employees with long term relationship goals.
Beau Curtis
Beau Curtis
01:17 03 Mar 21
They have improved a lot now. I like the way the improved their services.
Khurram Riaz
Khurram Riaz
00:43 16 Feb 21
Great experience! 10/10 recommend to anyone.
Codi Irlmeier
Codi Irlmeier
18:14 03 Feb 21
I brought my vehicle to Modern Diesel not expecting much could be done to get it repaired. After talking with the technician I was told its repairable but it will take some time to complete. Honesty and delivering a reasonable expectation for time of completion, what more can you ask for. Oh yah, the price was reasonable as well. I’ll be back the next time my vehicle takes a turn for the worst. Great Guys!… Thank you!!!
Bryan Thompson
Bryan Thompson
16:33 03 Feb 21
I had the guys here help me build a bobbed deuce and a half and I couldn’t be happier with the result. Killer job, finished in the quoted time and the price. If you’re looking for a solid diesel mechanic that follows through, you need to come here. I came from Louisiana because a friend had used them before, and it was worth the extra few hours of driving.
Gavin Jobe
Gavin Jobe
16:19 03 Feb 21
They guys were very professional and worked efficiently. They sorted out my bus quickly. 10/10 will use again.
nicholas campo
nicholas campo
16:05 03 Feb 21
I want to say thanks for Modern Diesel, they have changed the game. They were honest, communicative & did a great job. I will be taking my truck back to them with any services that’s needed from now on. Honest repairs and good people that have treated us like family. Highly recommend.
Shelby Bissen
Shelby Bissen
16:00 03 Feb 21
By far the best automotive service around. I’ve been coming here for years, and each time it’s top notch, high quality service. These guys know what they’re doing, and they’re great at explaining what’s going on. I’ll never go anywhere else for automotive needs.
Tony Silvio
Tony Silvio
15:54 03 Feb 21
Took my friend’s truck there after they had already taken it in for the same repair before. Was baffled by the pricing of their parts and the amount of labor this shop was charging.$2,000 for injectors alone, that’s just the parts? I mean, what? I get that a repair shops add an upcharge to parts, but 100% upcharge? $400 for a starter that costs no more than $100? And 9 hours of labor for a rocker arm and the replacement of said starter? Plus more for several diagnostics?When I asked about these charges and expressed my concern about them, the reply was “why am I talking to you” and “I wasn’t here the previous time”. Hm, seems somebody felt challenged on the validity of these charges.Not only does this shop over charge by a wide margin, the issues were not actually resolved. How about checking the pistons while you’re in there and realizing that one of them is stuck? How about returning the vehicle with all issues fixed, rather than fixing one, putting the top back on and then having to bring it back in again for something that should have been diagnosed the first time.Highly disappointing. I recommend taking your vehicle to a different, more knowledgeable, and friendlier shop.
Welmer van der Wel
Welmer van der Wel
00:32 31 Jan 21
🌟🌟🌟🌟🌟 Excellent Service! Customers are treated nicely and are explained about any parts that need to be fixed or need to be replaced! Learned more about fixing diesel trucks by listening to them than I will ever have going to a class room! If you are not sure of what is wrong with any of your Diesel vehicles this is the place to go! I really recommend for everyone to come to Modern Diesel is the best area where you will get amazing results and great care for your Vehicles! Never going to another shop other than Modern Diesel! Thank you for everything!
Javier Dominguez
Javier Dominguez
00:58 28 Jan 21
Susy Cardona
Susy Cardona
00:56 28 Jan 21
Easy to schedule appointment with this place for my Dodge Ram diesel truck, thorough inspection of my old truck was done without any sales gimmicks. They didn’t try to upsell me and were very specific with billing, no hidden fees or extra charges. All work they recommended was communicated to me before they started working on it. When I picked up my vehicle the mechanic had enough time to go over his work with me and give suggestions as to when to schedule next appointment to keep my vehicle in good running condition. Very impressed! I will be coming back!
Dominique Lawrence
Dominique Lawrence
00:41 28 Jan 21
Excelente trabajo. Sobre todo Roman. Que me arreglo mi carro muy bien. Muy amable el muchacho.
Marisol Cantú
Marisol Cantú
00:37 28 Jan 21
Muy buen trabajo. Los recomiendo. Cobran barato y devolada resolvieron el problema.
Raul Cantu
Raul Cantu
00:33 28 Jan 21
Took all my trucks there great service great prices really good people modern diesel is the way to go !
Jaime Roman
Jaime Roman
00:31 28 Jan 21
Awesome experienced and such sweet people. Highly affordable. Recommend.
Jaycee Jimenez
Jaycee Jimenez
00:29 28 Jan 21
I took my truck to Modern Diesel when it started running poorly, they told me what was wrong and how much it would cost to fix it. It was finished on time, and it actually was cheaper than the estimate they gave me. I would recommend them to anyone.
Diane McClain
Diane McClain
00:28 28 Jan 21
Great customer service. After many attempts on figuring out what was wrong with my truck, they found out the problem & did such a great job. Highly recommend.
Jacqueline Dominguez
Jacqueline Dominguez
00:26 28 Jan 21
Amazing service very hard working people highly recommended for your diesel needs !!!
Jaime Roman
Jaime Roman
00:25 28 Jan 21
Great work preformed on many different makes of vehicles and very friendly staff.
Chance Jones
Chance Jones
00:07 28 Jan 21
Came in on a Friday needing work done same day on my hotshot rig the were able to squeeze me in with amazing service and decent pricing would recommend to anyone
Powerstrokerify
Powerstrokerify
23:39 27 Jan 21
I recently bought a new GMC Duramax, took it too these guys for some upgrades, they gave me a great price and finished my truck faster then they said they would. If you have a diesel take it to MODERN DIESEL. They’re crew is great and they will treat you right.
Ernesto Campos Suarez
Ernesto Campos Suarez
23:38 27 Jan 21
Awesome techs and superior service, they made my denali run like new. I highly recommend them to anyone with a diesel truck.
heath mcclain
heath mcclain
23:35 27 Jan 21
Love the Modern Diesel team! Always go above and beyond to make sure my trucks are taken care of, great communication, & everything is handled quickly & efficiently. Would recommend 100x over.
Deejay Jackson
Deejay Jackson
23:29 27 Jan 21
Kerry came out Dynamic Site Services and diagnosed and set up a convenient time for me to get the truck fixed and I was very impressed with the knowledge and professionalism he showed…….We as a company will be using Modern Diesel as long as they are in business…
Kelly Dorsey
Kelly Dorsey
19:42 22 Dec 20
I’ve had nothing but good experiences with Modern Diesel. From the office manager Ricky to the owner Kary, these people know how to treat folks and their quality of work is second to none. I’ll always bring my diesel needs to these guys.
Reed Curtis
Reed Curtis
17:52 29 Nov 20
Responsive, knowledgeable, great process. Highly recommend.
Brazos Hesskew
Brazos Hesskew
21:31 28 Aug 20
Omar Srour
Omar Srour
19:34 20 Aug 20
Awesome customer service. Took the time to explain what was going wrong with my car and repaired it fast too. Highly recommended.
Andrea L
Andrea L
19:19 12 Jun 20
We called Modern Diesel to do some work on our food truck. It hadn’t been driven in awhile, had a lot of rust and needed some major TLC. These guys were honest, efficient, highly knowledgeable, and got us completely taken care of very quickly and at a reasonable price. It runs like a champ now. We are very happy with the service and will be customers for life! Thanks guys!
Rishi Dhir
Rishi Dhir
17:00 05 May 20
Great place to upgrade my grandfathers diesel!
Chase Mitchell
Chase Mitchell
03:40 03 Mar 20
Very helpful in a time crunch of getting our truck back on the road. Very professional and informative!
Ricki Johnson
Ricki Johnson
14:55 02 Dec 19

TALK WITH AN EXPERT

Call 512-717-2777 or use this contact form.|DIESEL REPAIR