Rear brake job the whole brake assembly on both sides. They called my extended warranty company…read moreand a 1200.00 job was done very professionally! I very impressed with the work and the time frame was quick! Thank you Chris and all of your mechanics who work there!

PLACE IS A SCAM. PLEASE DO NOT GO TO THIS SHOP. The staff is incompetent and they will charge…read moreridiculous prices. Please read other customers reviews if you arent sure. Took my car here for a check engine light after pep boys told me a solenoid needed to be replaced and they couldnt do it. The owner Chris re-diagnosed the the problem and agreed a solenoid needed to be replaced. He charged me almost $800 dollars and when I picked the car up the check engine light was still on and I now had a completely flat tire. Chris tried to tell me the tire was probably already leaking before I dropped it off despite me having driven hundreds of miles with no issues over the last several weeks. We then discovered there was a nail now in the tire that one of his employees had driven over in their parking lot. They patched the tire and told me they would fix the problem. Chris calls me 2 days later saying now he thinks its just the wiring but it will cost another $600 dollars to fix. He stated its not his fault he didnt fix the problem correctly the first time since "I told him to fix the solenoid" even though he called me and said he diagnosed that as the problem as well. He finally fixed a wiring issue after a week of working on the car and charged an additional $600 because he could figure out the problem the first time. The professional thing to do would have been to correctly diagnose and fix the problem the first time like a competent mechanic instead of becoming defensive and blaming the customer and the charging them twice for your own incompetence. If I could give 0 stars I would TLDR: I asked this guy to fix a check engine light. He couldnt figure out the problem, blamed me, popped one of my tires and charged me twice. I will never go back. Please do not waste your money here.

I was referred to Melvin's Garage by a friend. I used to use Patriot Auto and when they closed…read morethe Dover Shop I have had a terrible time finding a trustworthy shop. From the minute I walked in, I could see this was a serious shop! They put all my info in their system and the computer will automatically send me a text when it's time for service and it calbrates it's notifications when it understands it's waiting too long or not long enough It learns to adjust. Work I needed was carefully explained especially when there is a cheaper route that they didn't recommend, and I was explained why the more expensive route was best and offered ways to complete the work over time, at my own pace if I didn't want to spend that much at once. I don't know much about rotors and even after just 1 visit, I had no doubt that what he was recommending was for value over cost and without hesitation, I went with their recommendations. That is what Ilike best! service is fast, and they are all super friendly and courteous and the prices are correct.

They are very versatile. The estimate was very fair and they stuck to it. Great Serviceread more

When I picked up my car it was running and overheating. I spent a lot of money getting my T/A fixed…read moreup. I think it was around $1700. It cost about the same to replace the head gasket. Not sure why they did that. We were friends I thought.

I took my car here for a exhaust manifold gasket. I was quoted $480. I said great lets do it. The…read moremechanic looks the car over calls me to say the one bolt broke and he may need some extra time to get it off. I say sounds ok. I come to pick up my car and the bill is for $800. I ask why and the lady says we didnt even charge you the full price for the extra time it took to get the rusty bolt off. Anyways I paid and drove off. car still seemed loud i look under the car and the exhaust pipe is dangling from near the rear muffler. I look under the hood and my exhaust manifold heat shield is also missing. This guy couldnt bother to tell me the exhaust pipe also needed a weld. It gets even better the work he did didnt even last a month. Car now sounds worse then when I gave it to him except now hes broken my manifold bolts, destroyed my heat shield and charged me $800 for the work. Dont be fooled by him calling you multiple times to tell you what hes doing...hes actually just making sure he informs you he will be charging extra. If you want a mechanic who will just do the bare minimum work on your car that it needs this guy can do it and will be ok to use your parts. If you want a mechanic who will look your car over as a courtesy and let you know what else is an obvious problem and build a long term relationship with you then this is NOT the place you are looking for. Hes also very expensive for what he does. There are other options in Dover

Amazing service Mary answered my call and made easily feel at home. I came in for an emergency oil…read morechange and the treated me like family. Chris took the car into his care and had me feeling like I just drove out of the lot. I have been to many shops in the area but this was a wholesome personal experience. Fun fact hey have a their own 3D printer.

Impressive! I needed some work done on my vehicle and was blessed to meet an honest mechanic. The…read morefirst miracle was actually getting someone to see me the same day! Within 30 minutes, he knew my issue and explained options. Unfortunately, it's an older vehicle and a cracked frame ( he showed me) wasn't worth the additional repairs. The next day, I referred them to my daughter in law and they were able to fix her vehicle the same day (struts and axle), with a nice discount! Please patronize this new business because honest mechanics are rare these days!!!

I contacted World Transmission & set an appointment to drop off my 2007 Chevy Avalanche to have a…read moreRear Main Seal replaced. It was a big job and I knew labor intensive so it was going to be a good bill. They performed the work very timely and certainly within the range of what I expected, even doing a couple of extra things while the transmission was out. Thoroughly impressed with the work and professionalism. They even asked me to bring it back in a couple weeks just to check it out and make sure it was good, no leaks. That impressed me. Thank you guys and I will be back. Jim K.

they fixed my miata multiple times over the years and were even nice enough to let me play with the…read morelittle gears toys. lol =)

Did not try to upsell me to more expensive tires. Did have great prices, friendly and informative…read morestaff, and quick service. A great experience.

I needed new tires badly. I called them around noon on a Monday and told them what I was looking…read morefor and the price i was wanting to be around. I chose a tire and dropped the vehicle off at 1 the same day. Got a call less than an hour later telling me that it was done and ready for pickup. It cost under $600 for 4 new tires mounted and balanced on short notice. I will definitely go back when I need tires again

Fair prices. Efficient service. Very nice front desk staff. **Popcorn machine in the waiting room!**read more

Put car in shop 1 month 2wk ago for a thermostat added 9 different things charged and still haven't…read moreworked on it and im working on getting a lawyer now do not go here for nothing

recently purchased an old rv camper and knew it needed repairs on the engine, thank god i found…read moremaster diagnostics on line to service it. John is the most experienced tech. i have seen down here in delaware. He even comes to you personally so there is no waiting in a dealer for hours. now i use him for all my trucks and cars, he is a godsend... Chris P.

After driving 6 hours of an 8 hour drive thru several states....having a serpentine belt come off…read moretrack and breaking down less than 2 hours away from home was the last thing on my mind. And to add insult to injury doing so about 10 minutes after most shops closed up for the day. **ENTER INTO THE PICTURE: John and Master Automotive Diagnostics** After giving John a run down of my problem over the phone, he was able to quickly troubleshoot the problem to include identify the root cause (a bad tensioner), call several stores to confirm availability of parts and provided SUPERIOR & QUALITY service. Not only was the service quick (considering working away from the comforts of a garage) but it was thorough, cost efficient, affordable and above all else, his customer service and communication skills were unparalleled. He was able to ease ALL worries, fears, and concerns within 10 mins of talking with him. He reassured me that I'd be home with my family within no time and that was warmly felt and received. I hope to never break down on the road again but he is HIGHLY RECOMMENDED and the FIRST call to make for anyone needing car repairs or is stranded on the road.