How to handle a mechanic who messed up brake repairs
Bad mechanics often leave safety hazards like air in brake lines or incorrectly installed shocks that cause new noises and loose bolts. When you have to keep returning for the same unverified fix, it destroys your trust and forces you to drive an unsafe car.
What the numbers show
Counted from the threads quoted below. How we count
- The most recent one is from October 2026.
- This comes up 11.4× more often in r/autorepair than across the site as a whole.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Taking the car to a different shop for inspection2 people mentionedDid this help you?
- 2Towing the vehicle back to the same shop for inspection2 people mentionedDid this help you?
- 3taking more photos of the breaksDid this help you?
- 4gathering more information on mileage and when work was doneDid this help you?
- 5Contacting media consumer advocate shows like Tom MartinoDid this help you?
- 6Finding independent mechanics through trusted referralsDid this help you?
- 7idling the car at night to cool off despite knowing it worsens fuel consumptionDid this help you?
- 8calling the dealership to request a callback from the managerDid this help you?
- 9attempting to negotiate for a free oil change or discounted installation laborDid this help you?
- 10Hiring another roofing company to inspect the work and suggest alternative solutions like rubber coating.Did this help you?
- 11adding coolant back into the systemDid this help you?
- 12keeping an eye on the temperature gaugeDid this help you?
- 13bringing the car back to the shop to be checked with a funnelDid this help you?
- 14Contacting a lawyerDid this help you?
- 15Requesting a full or partial refundDid this help you?
- 16Negotiating parts at cost and waived labor from the shopDid this help you?
- 17Paying the new mechanic shop to fix the damage and replace the componentsDid this help you?
- 18Cutting losses and deciding whether or not to notify the original mechanicDid this help you?
- 19paying for additional repairsDid this help you?
- 20yelling back at the shopDid this help you?
- 21asking for advice onlineDid this help you?
- 22Consulting a lawyerDid this help you?
- 23Looking around the area for low walls or curbs that could have caused the damageDid this help you?
- 24Filing a claim under garagekeeper's insuranceDid this help you?
- 25Taking the vehicle to the dealership and waiting while driving a rentalDid this help you?
- 26Letting the dealership technicians do their own troubleshooting processDid this help you?
- 27Gathering pictures and treating the situation as a legal matterDid this help you?
- 28Questioning the shop's assessment or seeking alternative mechanicsDid this help you?
- 29seeking a second opinion from knowledgeable communitiesDid this help you?
- 30inspecting parts visually for paint or wear indicatorsDid this help you?
- 31Demanding a brand new or replacement engineDid this help you?
- 32Insisting on an independent teardown inspection or oil analysisDid this help you?
- 33Threatening legal action or a media campaignDid this help you?
- 34Negotiating an extended warranty covering future catastrophic failuresDid this help you?
- 35Calling emergency roadside assistanceDid this help you?
- 36Taking the car to a new independent mechanic for a second opinion and repairDid this help you?
- 37seeking second opinions on mechanic diagnosesDid this help you?
- 38inspecting replaced parts visually for wearDid this help you?
- 39Taking the car to a different mechanic for diagnosisDid this help you?
- 40Waiting for a professional diagnosis to determine the exact cause of failureDid this help you?
- 41Avoiding driving the vehicle muchDid this help you?
- 42Switching away from the dealership shop to local independent shopsDid this help you?
- 43Calling local shops for an estimate and towing the vehicle in for inspectionDid this help you?
- 44getting a second opinion on the issueDid this help you?
- 45Asking online communities for advice on mechanic pricing and diagnosisDid this help you?
- 46Driving to an auto parts store to buy new lug nuts and putting them onDid this help you?
- 47Calling the shop the next day to ask what they can doDid this help you?
- 48Confronting the mechanic to negotiate responsibilityDid this help you?
- 49Arguing fairness in business to avoid paying for subsequent damageDid this help you?
- 50getting a lawyer to send a demand letterDid this help you?
- 51taking the shop to small claims courtDid this help you?
- 52having the shop tow the car back to their locationDid this help you?
- 53Taking the car to roadside assistance or a second mechanic for diagnostics, and paying for unneeded parts and servicing recommended by the original shop.Did this help you?
- 54doing your own repairs and installationsDid this help you?
- 55checking the fuses firstDid this help you?
- 56bringing your own equipmentDid this help you?
- 57Calling out roadside assistance or towing the car to a dealership and aa garage for inspection.Did this help you?
- 58Asking online communities for opinions before complainingDid this help you?
- 59Leaving the repair alone if it does not leakDid this help you?
- 60Taking the vehicle to a different shop to cut lossesDid this help you?
- 61asking friends for advice on whether to refuse payment for what the shop brokeDid this help you?
- 62waiting weeks for the shop to diagnose or throw random parts at the issueDid this help you?
- 63having to text the shop first to get any status updatesDid this help you?
- 64Checking the suspension components yourselfDid this help you?
- 65Lifting the car up to rotate wheels by handDid this help you?
- 66Returning to the repair shop to have them fix their mistakeDid this help you?
- 67Getting written documentation and inspection notes from a dealershipDid this help you?
- 68Filing a claim with the shop's customer care team or corporate insuranceDid this help you?
- 69Demanding a written extended warranty or financial settlementDid this help you?
- 70Consulting a lawyer to draft a demand letterDid this help you?
- 71Doing online research to diagnose the vehicle yourselfDid this help you?
- 72Confronting the mechanic with previous service receiptsDid this help you?
- 73Taking the vehicle to a different mechanic for a second opinionDid this help you?
- 74Using starter fluid or mist to locate vacuum leaks independentlyDid this help you?
- 75Paying another reliable shop to diagnose and fix the damageDid this help you?
- 76Requesting a refund or compensation from the original shopDid this help you?
- 77Paying the disputed fee under threat of a mechanic's lienDid this help you?
- 78Considering filing a bank chargeback or going to small claims courtDid this help you?
- 79Doing the automotive work yourselfDid this help you?
- 80Taking the vehicle to a specialized performance shop insteadDid this help you?
- 81Driving the car to see if it seems fineDid this help you?
- 82Waiting until something breaks or further issues ariseDid this help you?
- 83Asking the dealership to put their statements in writingDid this help you?
- 84Having the garage clean up the mess and top off the oil rather than replacing the engineDid this help you?
- 85Checking under the hood before driving off to ensure caps are tight and levels are correctDid this help you?
- 86Asking for a refundDid this help you?
- 87Demanding they recheck the carDid this help you?
- 88Calling the shop to ask for the correct printoutDid this help you?
- 89Specifying the checklist items multiple times to the shopDid this help you?
- 90Shopping the car around to various different shopsDid this help you?
- 91Calling the shop dailyDid this help you?
- 92Showing up in person at the shopDid this help you?
- 93Towing the car to a different shopDid this help you?
- 94Asking auto repair forums for a second opinionDid this help you?
- 95Flushing the coolant system daily at homeDid this help you?
- 96Finding a new mechanic to properly diagnose and finish the jobDid this help you?
- 97Seeking third-party mechanical advice online to understand if the damaged part is related to the repair before returning to the shop.Did this help you?
- 98Refusing to accept the vehicle from the shop.Did this help you?
- 99Complaining directly to the auto insurance company if they recommended the shop.Did this help you?
- 100Forcing the body shop to take the car back and redo the defective work.Did this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“Anyone ever had similar damage and how did it happen mechanic saying he left it on the road and maybe a car crashed into but I don’t believe him”source ↗
“I brought 2020 VW Jetta into the dealership I purchased it from for an oil change (free oil changes for life).”source ↗
“I drove a total of 17 miles away from the dealership, and the low oil pressure light turns on, I hear a knocking sound from the engine, and the error stop start light turns on.”source ↗
“Popped the hood and the car was bone dry of oil, and there was oil all over the splash guard of my car and all over the car and engine bay.”source ↗
“Towed it back to the dealership, and they determined the tech installed the wrong oil filter and it failed!”source ↗
“They are having me speak first with what I would like the resolution to be but I can’t think of any other resolution than a new engine. Who knows what could be damaged internally.”source ↗
“Yesterday when i picked it up, there was a whining noise coming out near serpentine belt when i started car in front of the mechanic shop.”source ↗
“Then when i drove home before i even reach home 5 min away the car started overheating.”source ↗
“So i called mechanic but i also told him that i see there was no coolant in the tank”source ↗
“I took my Toyota Corolla 2021 to car maintenance shop for misfiring. He changed 3 parts which were the same. My check engine light turned off. He charged me 640$. Now he is asking to change the fuel injectors. Is it a good price or do I need to change the fuel injectors?”source ↗
“I feel annoyed to have spent the money when the car was diagnosed wrong, but also it’s probably now not even fixable,”source ↗
“Today I was told my calipers were wound up to retract the piston(is that the right term) rather than put in service mode to electronically retract the piston(not sure I’m using the right terms) when looking at the calipers the rubber that goes over the piston is all chewed up. There’s junk and metal flakes all in the piston jamming it up. I’m being told I need new calipers now because of all of this and it’s expensive.”source ↗
“Would you just pay the new shop to do the work or should I mention to the high school friend that one shop is saying the brake job was done wrong and parts now have to be replaced.”source ↗
“What are my options as I feel like I was scammed.”source ↗
“I was driving normally when I suddenly heard a massive grinding noise from the right rear wheel, and the brakes essentially locked up.”source ↗
“The roadside technician removed the wheel and found that the lower guide pin bolt on the brake caliper was missing (either fell out or sheared off).”source ↗
“However, I had the car checked in a new independent mechanic to fix the recent breakdown. The new mechanic showed me the old pads and discs: the pads were completely worn down to the bare metal backing plate, and the brake disc was heavily scored and completely destroyed.”source ↗
“He explicitly stated that there is absolutely no way these pads and discs were changed or properly serviced 40 days ago, given the catastrophic level of wear.”source ↗
“Hit a curb, got a bunch of stuff replaced yesterday, tried to drive today and the front driver side is wobbling, what’s wrong?”source ↗
“I’ve had too many friends get caught in their scam during their time of need and without the knowledge to know CB are wolves in sheep clothing.”source ↗
“After they looked at it, they said it was the rear differential that was acting up. He quoted me two prices ~$1700 for parts that have a 75% of fixing the problem or $5100 for a whole new rear differential that would definitely fix it. I didn’t want to gamble, so I opted for the higher price.”source ↗
“I picked it up after a few days, 15 minutes into driving it I had the exact same issue.”source ↗
“He said it was probably the tires being worn down. Paid $500 for new tires. The issue still wasn’t fixed.”source ↗
“I feel like I was kind of being taken advantage of.”source ↗
“Don’t think it’s covered it’s cowboy garage I gave the car in for inspection test. He’s not owing up regardless I gave him the car and keys so it should be his responsibility”source ↗
“Everything ran smoothly for about a week. Then, when I started the car up to go out, a cascade of dashboard warning lights suddenly came on simultaneously”source ↗
“Your balljoint is half-out of it's socket. The bolt that clamps it in place is absent.”source ↗
“They probably forgot to put the bolt back when they replaced your balljoint, it's a dangerous mistake...”source ↗
“Problem is same check engine light and dash lights come up again a week later for the 8/14 issue and we get the same codes.”source ↗
“I feel like knowing he replaced the gasket just over a year ago it most likely wouldn't be that again and should have found this "new" issue already.”source ↗
“He's also charging for the hose he said is leaking. Does any of this seem unreasonable?”source ↗
“He's guessing on your dime and that's some pricey guessing, I'd take it somewhere else for a second look before throwing more cash at it”source ↗
“She said he told her this might not fix it either.”source ↗
“The shop stripped some of the bolts and did a piss poor sealant job so next to all of my 5 quarts leaked out.”source ↗
“Would you just ask for the $150 back for the original botched job, or ask for $500 to clear all of this up?”source ↗
“I call everyday and they give me the same bullshit “were in the process of looking at it, we’ll give you and update by the end of day” and that “update” never happens…”source ↗
“As soon as I left the shop my dash wash throwing a tighten gas cap warning with P0455 codes.”source ↗
“The shop has asked me to bring it back to look at it to determine fault. My question is, does this look like something they should be accountable for?”source ↗
“I don’t think it would have broke if nobody touched it.”source ↗
“I recently got all 4 brake pads and rotors replaced. The service advisor was somewhat very hesitant to replace the rotors and he said only brake pads needs replacement.”source ↗
“In the service record I see a note that my rotors were resurfaced but I was charged for the rotors.”source ↗
“Advisor says it’s replaced but wanted a second opinion from folks who are more knowledgeable.”source ↗
“I am getting suspicious because the service team called for a feedback after a week and when I asked them they said the rotors were resurfaced.”source ↗
“I got this professionally done and I got in my car and all I heard was sizzling and then popping and my amp was smoking like a chimney”source ↗
“well 2 weeks have gone and my car is still in the same parking spot the tow truck driver left it, this place hasn’t called me once with an update and when I call them their receptionist just gives me the run around”source ↗
“It’s not like they’re doing the repair they haven’t even diagnosed it YET.”source ↗
“I recently had a catalytic converter replaced at a shop and noticed the welding afterward. I’m not very experienced with welding, so I’d like to get some opinions from people who work on exhaust systems or weld regularly.”source ↗
“Does this weld look acceptable to you, or does it look like something that should be redone? I’m considering going back to the shop and asking if they can redo it, but I don’t want to complain about something that is actually normal or good enough.”source ↗
“Does Valvoline owe me a new transmission?”source ↗
“I recently went for an oil change at a local Valvoline... it was confirmed they did in fact drain my transmission fluid and just fill my oil on top of the old oil (double filling).”source ↗
“I have people in my personal life that are mechanics for a profession and have advised me that there certainly will be damage to my transmission, even if it is not showing right this second.”source ↗
“Should I demand a replacement transmission? I'm really worried because I don't want to buy a new one in a few years due to this issue.”source ↗
“Car was pulling weakly in lower gears, dealership said it's because of a worn clutch and replaced it.”source ↗
“It drove fine for about 80 miles after the service was performed, but all of a sudden I lost the ability to accelerate forward while driving.”source ↗
“I had my mechanic do a drain and fill on my transmission fluid, and now my car won't accelerate and makes a horrible and loud grinding noise when I shift gears.”source ↗
“I bring my car in to a family owned tire shop to get my tires balanced and rotated (just did an oil change, little wobble at 55-60mph).”source ↗
“Left at 5 and got my car up to 40mph and my steering wheel starts shaking like crazy.”source ↗
“I pull over to check/tighten them and I’m actually missing two lugs on my back passenger tire.”source ↗
“My steering wheel still violently shakes at over 40mph.”source ↗
“Changed oil on my 2024 hyunday venue 20k miles, the mechanic did not screw the oil cap on the engine, I found the cap in the engine bay with 1-2 liters of oil spilled all over the place.”source ↗
“The camshaft have two odd wear mark on it right under the cap, its damaged right?”source ↗
“This means I should have the garage at least replace the engine right?”source ↗
“They did nothing to your car… I would go back and demand either a refund or for them to try again”source ↗
“2 days after, I notice a yellow marking on my tire around a bulge.”source ↗
“If they would have told me about it when they called when it was ready for pickup or when I got there. I would have just decided to get a new tire or drive 2 blocks down the street to the tire shop the same day on my own acknowledging the risk.”source ↗
“When I need an alignment, I have to specify multiple times to get these things done, so I'm frustrated.”source ↗
“all of them have failed in one or several of these points above.”source ↗
“She is now experiencing issues with her 2016 Honda Civic car an it makes a lot of banging and scratching sounds.”source ↗
“I dont trust him because he did this job and shes now going back for the 3rd time.”source ↗
“He first left air in the break lines he said by mistake and now hes claiming shocks he installed are rubbing on the top peice of steel you see in the photo cause the bolt came loose in the trunk he said”source ↗
“When I first got it a full tank got me around 400 miles, but now it's about half that, and it genuinely feels like on the distance to empty screen whenever I drive a mile it drops 2 miles.”source ↗
“I've taken this vehicle to the dealership and I'm driving a rental for work. It's been a week and so I checked with the dealership and they said they are throwing spark plugs and ignition coils in.”source ↗
“I call b******* and think that they have no idea what they're doing.”source ↗
“If this were my personal car I would be livid. It's at the dealership because they are supposed to be familiar with these issues. Otherwise I could've just gone to express oil. Or pep boys. Or meineke.”source ↗
“I have a 2020 GX460 and took it to Firestone for a lifetime alignment. they only adjusted camber and toe and didn’t adjust caster. it was out of spec but said caster is not adjustable.”source ↗
“I've been avoiding driving it much because after I got it back from the shop last it vibrated alarmingly and I assumed the tow truck guy had messed something up. It also started wearing out tires pretty quickly”source ↗
“The mechanic kind of struck me as possibly not that sober so it makes sense he would've missed it, luckily I'm no longer obligated to use the dealership shop”source ↗
“Right now our car is undrivable at the Acura dealership and we are holding a $7000 quote.”source ↗
“the garage is stating that they used the correct oil and that the Acura dealership is scamming us.”source ↗
“The oil change receipt we have from the garage last month shows that they used the wrong oil, but they said that is just what their computer populates, not the oil they used at the time.”source ↗
“I'm not sure what it is, neither are they. I think they believe me that they blew it into my intake when they took it off. I am concerned about that damage, their lead mechanic said he wouldn't expect any further issues. They're not willing to move further at this time.”source ↗
“Yeah I'm definitely a little paranoid right now. But I don't think there's much I can do unless something happens”source ↗
“lol no they lie to you. Just ask for a refund”source ↗
“Former tech here. Done hundreds of alignments. They didn’t do an alignment on your car. Literally everything is the same.”source ↗
“Mechanic said they had to cut in order to get the bolts out that were spinning in order to change the alternator and replace the belts.”source ↗
“Used zip ties to re secure one of the motor mounts and welded another to the frame.”source ↗
“Also did it without telling me or my consent.”source ↗
“I drove the car 20 minutes had gas leaking from a gas line and stopped at a shop and that’s how I found out.”source ↗
“the mechanic proceeds to jump the vehicle immediately even after we pointed out the warning.”source ↗
“as i pull out, the clutch has completely failed and the car will NOT go into gear and all of the screens were completely malfunctioning throwing up all kinds of errors and nonsense.”source ↗
“I took my car to a reputable mechanic in my area to get a general check up... The guy called me and said they fixed everything but now my car won’t start.”source ↗
“At this point it has already been a week with no answers.”source ↗
“At this point I’m still waiting to hear back from them, at this point I don’t know what to do. Also they will only update me when I text them first asking about an update.??”source ↗
“Recently took my 1999 Honda Civic SI to a local shop to have coil-overs installed.”source ↗
“There wasn’t much I thought I could do at this point so I went to the shop to get my car back and he slaps down a bill for $600. told me he would put a lien on my car if I didn’t pay. so I paid and left.”source ↗
“ON TOP of ALL OF THAT… when I inspected the car theres now a new, large, dent by the gas cap and a massive scratch along the drivers side that continues across all panels.”source ↗
“ALSO, the strut was reinstalled incorrectly with the cross beam being installed backwards, the shock absorber decompressed as well as missing parts.”source ↗
“I really need advice as to how to proceed. Is this enough to file a dispute with my bank? or should I go to small claims court?”source ↗
“When I got the car back he told me that they changed the coolant cap but that I’ll need to flush the coolant with water for about a week and everything should be fine.”source ↗
“I’m learning that a milky coolant means that there’s something wrong and my coolant has been looking milky even after flushing with water daily.”source ↗
“My oil looks fine and my mechanic is telling me this milky coolant is ok as long as I flush it till I see clear fluid. What do you guys think?”source ↗
“Our 1995 barn roof started leaking in 2021. Had two roofers for advice—both said the first step was to replace the screws. We went with a highly-rated local roofer and they replaced the screws in 10/2024 for $4K. Leaks persisted.”source ↗
“The guy who checked the roof showed me the photos you see—there’s an empty hole next to every screw over the entire roof (27 squares.) He said that this wasn’t normal.”source ↗
“I contacted the original roofer. His exact response was—“all our crew attempted to do was replace the old screws with new ones. Is this a situation where our company is trying to be blamed for a very old roof leaking after a repair was attempted at fixing it?””source ↗
“None of the gaps in the body panel line up correctly and are totally uneven. They didn't replace the ring on the proximity sensor. The paint is bubbly, if that's the right word, on the side of the bumper.”source ↗
“I need to get hard with them on this without it turning into a full blown row because they were good enough to take it in almost instantly to do the job”source ↗
“Had the body shop respray my tailgate on my ‘21 4Runner because it was all orange peel and they got it back and had it another three days and detailed the car for the trouble.”source ↗
“they are going to charge me for this claiming it’s wear and tear, surely this is on them with my thinking being they triggered this whilst reassembling the clutch???”source ↗
Where this came up
People with this problem also raised
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