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    Contra Costa Auto Service

    4.5 (143 reviews)
    Closed Closed

    Services - Contra Costa Auto Service

    Check engine light

    Engine oil light diagnosis

    Auto general diagnosis

    20 More Services

    Auto noise diagnosis

    Tire Pressure Monitoring System diagnosis

    Auto no-start diagnosis

    Auto vibration diagnosis

    Auto diagnosis or inspection

    Auto pre-purchase inspection

    Auto maintenance

    Auto fluids and filters maintenance

    Oil changes

    Auto repairs

    Auto battery or electrical system repair

    Auto brake repair

    Auto engine repair

    Auto HVAC repair

    Auto light repair

    Auto steering and suspension repair

    Auto transmission repair

    Auto wheel and tire repair

    Routine automotive maintenance

    Transmission leak inspection

    Contra Costa Auto Service Auto Repair Photos

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    Recommended Reviews - Contra Costa Auto Service

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    Reviews With Photos

    Conway S.

    Came here to get my water pump and timing belt replaced, their team did an excellent job at a fair price (much cheaper than dealership) after the replacement the next day I heard a squealing sound coming from my Serpentine belt and took it back to them today. They replaced the belt at no cost, they document everything and take pictures as they're replacing things which is great. Very honest and nice people here, I plan on exclusively using this company for all my auto repair needs. Great work guys!

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    Photo of James A.
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    10 months ago

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    19 days ago

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    8 months ago

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    9 months ago

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    8 months ago

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    10 months ago

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    1 year ago

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    1 year ago

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    3 years ago

    I recently had a great experience after having car transmission issues. Brandon and Justin were so helpful!

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    2 years ago

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    2 years ago

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    2 years ago

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    2 years ago

    Great service at a fair price. They were definitely lower than the dealership. If my other car has a problem, I'll go back to them.

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    3 years ago

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    3 years ago

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    5 years ago

    Business owner information

    Photo of Adrian R.

    Adrian R.

    Thanks Markus. We look forward to saving our customers time and money.

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    6 years ago

    Business owner information

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    Adrian R.

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    4 years ago

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    6 years ago

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    Adrian R.

    Thank you Jennifer! We're here whenever you need us.

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    3 years ago

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    3 years ago

    Great service with fair and reasonable pricing

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    3 years ago

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    Photo of John Y.
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    7 years ago

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    Adrian R.

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    12 years ago

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    Adrian R.

    Tim, we look forward to taking care of all of your needs!

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    5 years ago

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    7 years ago

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    Adrian R.

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    5 years ago

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    5 years ago

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    Adrian R.

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    5 years ago

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    6 years ago

    My first time here to service my car. They gave great service! I will return in the future all of my maintenance.

    Business owner information

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    Adrian R.

    Thanks Tammy! We're here when you need us.

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    6 years ago

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    Adrian R.

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    6 years ago

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    Adrian R.

    Thanks Brandon! Lets keep you on the road for years to come.

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    7 years ago

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    Adrian R.

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    Page 1 of 4

    Ask the Community - Contra Costa Auto Service

    I want to make stage 3 a bmw e60 550i 2008 how much does it cost?

    Hey Gerardo, thanks for reaching out. Are you referring to the Dinan Stage 3 package? If so, unfortunately we are no longer a Dinan dealer, so we do not offer those upgrades.… Read more

    View All 4 Questions

    Review Highlights - Contra Costa Auto Service

    Bill has helped repair multiple vehicles for me and he has ALWAYS been truthful and provided honest services.

    Mentioned in 20 reviews

    Read more highlights

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    Walnut Creek Transmission - Inside the shop

    Walnut Creek Transmission

    (73 reviews)

    I was a bit in-shock today that Jim and Karen retired, and their business has changed ownership to…read morewhat is now called Main Street Automotive. I will always be thankful for both of them, as well as Brian, for all the care and consideration. They will be missed. I was a bit uneasy when I dropped-off my car this morning by not seeing familiar faces anymore, but that quickly melted away. The receptionist was cordial, easy to work with, and was careful with everything. To my surprise, I received a text message about what was going on with the car outside of needing an oil change and the incurred charges. When I authorized it, I got a phone call later on that it would need a new engine air filter, too, and once again, was given a price quote up-front, and said they'll order the part and it will be installed in ASAP. I received both a text message AND a phone call that the car was ready, which was super nice that they covered both bases. When I arrived and was being charged out, I was happy to see that Tim is still working in the shop, and he recognized me. They lucked out that he stayed on-board, as he did amazing work with my previous car. I will say I was fortunate that they took care of my car, as they wanted to reschedule my appointment for another time, but they were kind enough to look at it anyways because I was about to do a road trip to Southern California to visit my mom. I appreciate they were still able to do the work, and I have peace of mind I can travel safely. I am impressed with the level of service and care I received today, and I know Jim would be proud knowing that the new ownership has not tainted his shop's reputation. My family will keep supporting them with maintaining our cars, as the competency beat keeps on with this establishment. Thank you!

    They did the requested work. They're no longer really a transmission shop, they're focusing in…read moreEVs, which apparently break a lot.

    AAMCO Transmissions & Total Car Care - No oil in the engine

    AAMCO Transmissions & Total Car Care

    (122 reviews)

    Excellent customer service. Mechanic detailed the process and appeared genuine…read more To no fault of his own the parts were difficult to obtain requiring the vehicle to stay lol ver than expected. The technicians communicated and the cars "noises" and issues repaired. We were skeptical at first due to the minima ratings but service and work great. Give them a try.

    Absolute scam beware! We got a diagnostic saying our car had an issue on the transmission speed…read moresensor and we made an appointment with AAMCO. After agreeing to the $125 price for a diagnostic they said they would call us early in the afternoon, they actually waited until a day later to call! They could not give us a diagnostic and kept suggesting a transmission repair worth thousands of dollars or have their guys explore what's wrong with the car for $450 more. They said $125 for a diagnostic, yet they did not provide one and wanted $450 for a proper one after a day!! They charge a $60-80 fee for each day they hold your car, so they held the car as long as possible for a reason! They purposely called at 4:30 (30 minutes before closing) on a holiday weekend about the car a thinking I wouldn't have enough time to pick it up before the holiday weekend and they could get extra money out of me for storing for multiple days. I live nearby and told them I'd be there in 10 minutes. Their website and storefront state that they close at 5 PM, I showed up at 4:40 to them locking up trying to leave early, so they could keep the car and charge me. I called them out, got my car out, and went to another shop! I went to another shop who confirmed the speed sensor diagnostic and the car now runs like brand new! This place is a scam and should be shut down!

    Contra Costa Auto Service - autorepair - Updated June 2026

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