Only mechanic I will let work on my vehicles. Helped me out with a dead secondary battery. Sim came out and replaced quickly. I asked him to look over the rest of the car as it was a new purchase and battery should have been good. He was meticulous and gave me a few suggestions on what to look for in the future but for now it was good. Thank you MMM peace of mind is everything. read more

By far the best experience with a mobile mechanic I have ever gotten. Thorough, skilled, dedicated, flexible and good communicator Look no further .. you've found your guy read more

Great service. On time and such a time saver to have him come to my house. Price was comparable to going to a shop so definitely got my moneys worth. Came and quickly diagnosed the car and provided a solution. So happy and will definitely use again and refer to friends and family. read more

Communication is on point, fast, honest and passionate about his business! The labor is affordable and he is knowledgeable about the automotive industry. Thanks Sam read more

We picked up some sort of debris on the 580 freeway only a few miles from home in Tracy. By the time we pulled into the driveway our Jeep rear tire was hissing its way flat real quick. It was almost 7pm on a Saturday and going into the 4th of July holiday week. I jumped on Yelp and found Sim, called and after a few text exchanges to verify if the spot of the puncture allowed the tire to be serviceable, Sim was out front of our house and servicing the flat. I couldn't believe it, this was after 8pm and he had the flat fixed in about 30 minutes and for an incredible price. Incredible service, quick response time--I wouldn't hesitate for a second to recommend Sim for any auto flat repair needs. Thank you!! read more

See all

Sim is very knowledgeable, he knows his stuff and does a great job. Will for sure use him for all my auto repair needs in the future!

Great service! Diagnosed another check engine for misfires. Cleaned injectors and replaced plugs. He also pointed in the right direction on another car repair. Thanks Sim! read more

Great communication, fair pricing and very thorough. Highly recommended. Had oil change, fuel filters, CCV and transmission fluid service done on my f350 diesel truck. Quick and convenient. read more

Amazing service with great communication. Sim was very efficient and thorough. My sensor issue was a quick fix! Highly recommend.

Great communication, fair pricing, and honest! I will continue to use his services for all my future vehicle needs.

Great service, fair pricing, prompt and was able to come to my home to complete the work.

So I discovered the latch to my fuel door had broken - at the gas pump - after hours - with the gas light on. Couldn't open the door to save my life. Google, YouTube and AAA all couldn't get it working either. I had a super busy day the next day and was STRESSED about how I'd get my kids to school, get my car fixed and get to work. I called Mobile Master Mechanic the next morning and Sim responded right away. I was able to transition my first meeting of the day to a zoom call which of course I was in the middle of when Sim arrived - in the rain (of course). Sim was super kind. He took my keys freeing me up to finish my call and had the door open in a matter of minutes. He charged me a fair rate, and gave me a work around as well as the repair cost for a permanent fix. He was honest, efficient and provided just an over all a great experience. I can't rave enough about this service. A thousand stars!! read more

Great communication, showed up on time, and got right to work. His customer service skills were on point. He was professional and thorough. I have already recommended Mobile Master Mechanic to my neighbors. The best part is the convenience of having them come to you. Thanks for getting my vehicle back up and running at a reasonable price! 5 stars for sure!!! read more

Great and quick work. Sim got my van back up and running after changing the fuel pump and at an affordable price which after speaking with other mechanics I was so grateful to come across him will definitely use again and recommend. read more

The guys were great and quick. Very professional and knew what they were doing. Will definitely be using them for the future.

If you need a mechanic, call Sim! He replaced my belt tensioner, upper and lower pulley's in my BMW X5! Fast efficient, professional. I found myself a new mechanic! read more

love love love ! as a single mom, being trapped on the side of the road with no idea what's going on and no one to call is so overwhelming and terrifying. the first time i broke down ,, my friend had just told me about sim replacing her brakes at her house so i got his number and gave him a call. he showed up right away and truly saved us! he quickly found the issue and had everything he needed in his truck, he assessed and solved our problems in no time ! sim was very professional and was able to quickly get me and my son back on our way without killing my savings. he also truly was our hero!! would absolutely recommend! read more

Noah came out to replace my battery and I called him two days later and had my alternator put in my truck. Very professional did an awesome job. Thank you, Noah. read more

Sim is amazing! Knowledgeable, responsive and priced very well. He also was the first to respond to my request and which he responded fairly quick. He provided a detailed diagnosis of what my car needed and got it done right away. I'm very happy overall and have already recommended to family and friends. He'll be my go to guy with all my vehicle needs! Thanks Sim!! read more

Sim was quick to respond with a quote for my brakes and rotors. He ordered the parts and showed up to my house. The whole thing took 40 min. He was very professional and I can't wait to use him again! read more

AMAZING!!! Simply amazing Home and work are an hour apart and my temp gauge went up drastically 3/4 of the commute to work. I pulled over and noticed a coolant leak. I added water and barely made it to work. I was in a huge dilemma and called shops to see if they can get my car back on the road so I can make it home. They all wanted an arm and a leg and I had to get the car towed there. Plus I'd have to miss time off of work. A buddy of mine referred sim and said he was mobile and can come to me. I called sim and explained what happened and he showed up while I was at work and fixed the issue and had me up and running to make it back home. It was so convenient of having him show up to my work place and I didn't have to take time off for this matter. He was super friendly and professional. I'd recommend sim to everyone for their car needs. read more

Sim is the man! He is not only competent in finding the issue but also fair and honest with pricing and diagnosing.

I just wanted to say thank you to Sim for being reliable, trustworthy, and very knowledgeable. My car would only go in reverse and I was pretty sure the transmission went out but wasn't 100% sure. I didn't want to have it towed to the shop. He came out the next day and was able to do a full diagnostic on my car, find the problem, and leave me with valuable information. I plan on using him again. read more

I'm so happy I was able to find this mechanic! Sim did a great job at a great price. My car had a electrical issue and Sim was able to fix it no problem! I appreciate him coming to my home to service my car. Definitely will be recommending his services and do business with him again. Thank you so much for coming to fix my car! read more

Sim exceeded expectations, offered less expensive options on ac condenser replacement. Had oil changed on other car while he was here. Sim did a great job ,my go to mechanic. read more

Sim with Mobile Master Mechanic deserves a 5 star rating. No complaints in every category. Sim is honest, punctual, knowledgeable and affordable. We are so glad we called. Thank you Sim! read more

Sim responded quickly to my questions and came out the same week to check out my car. He was able to pinpoint my issue and gave me the details to follow up with the dealership to fix since he was not able to. He was very friendly, helpful, and even filled my low tire without it being asked. Would recommend for sure! read more

I got brake pad and rotor replaced by them for two of my cars. Both times Sim provided overview of the fix, time estimate and quote before starting the job and got service done on time within budget. With mobile service option, there is no hassle of waiting or dealing with shuttle/ ride share, all fixes were done at my driveway. Happy to recommend them to anyone and definitely call them for any future auto repair/service needs. read more

I would recommend using Mobile Masters. Very quick to respond. Service was a bit pricey but the convenience was what you pay for. I would definitely use this business again. read more

My car was in bad shape but sam came to our rescue and not only saved me but my daughter as well i'm so honored to have meet you and i will not let you go anywhere he's quick reliable and works with budget Thanks for being so hones... read more

12/10 recommend Sim! I posted a project I needed done to my car (crankshaft relearn) after a quick call the next morning he was the only responder that offered the service or knew what I was talking about. He came to me in stockton. Was done within 20 mins. Told me what I needed to do to get my engine light off. Thanks to Sim my car is safely on the road again. I'll be calling him for all my projects from now on read more

Fantastic service! My car's a/c stopped blowing cold air and was in need of troubleshooting/repair. I sent a quote request through yelp and Sim got back to me very quickly. He was on time, came out to my apartment & finished everything in 30 mins for a very reasonable price. I work from home, so it was incredibly convenient to not need to take time off from work to take my car in for repair. I highly recommend him, and he will be top of mind for anything else that comes up for my car. Thank you Sim! read more

My former mechanic had me quoted at $600 for new rotors and brake pads and told me my compressor was dead and needed replaced for $1500. I got a second opinion from Sim. He took off the tires and informed me I had 60% pads left in the back and 80% in the front and the rotors were still good. So my former mechanic was lying about the brakes. Sim looked at the AC system and informed me the vehicle was low on refrigerant. He flushed the system, checked for leaks, No leaks so he added new refrigerant. The compressor fired back up. My old mechanic was trying to con me out of $2,100. Sim saved me hundreds of dollars. He's a very honest mechanic. read more

I contacted Sim to obtain a quote to replace the battery on my BMW. He promptly provided me with different battery/warranty pricing options. I agreed and set a date for install. He arrived on time and went to work. The battery was installed and the car was reprogrammed within the estimated time given. Pricing was very reasonable (especially compared to BMW's rates!) I highly recommend Sim and would definitely consider him for any future mobile auto repairs. read more

Had Sim come down to replace my BMW right low beam bulb replacement. Lowest quote amongst many including some really interesting ones that suggested unnecessary work involved like bumper removal. Arrived on time was done with the job in no time. No drama quick execution great manners reasonable pricing. Couldn't ask for more. read more