Questions to Ask a Mechanic in an Interview
Interview questions to ask a mechanic, for shop owners, service managers and fleet supervisors hiring an auto mechanic. The first seven suit any candidate, from a lube tech moving up to a master tech. The rest are grouped by what you are testing: skills, diagnostics, customers, shop habits, then pay and fit. The Skills group closes with nine for a superintendent interviewing a golf course mechanic, whose fleet is reel mowers, utility vehicles and carts. If you are the mechanic getting ready for the interview, read the notes as the answer key: they say what the person across the desk is listening for.
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The questions
Each question, and why to ask it
Start here
How did you get into this trade, and how long have you been working on cars for a living?
Why ask it
The route matters as much as the years. Trade school, a family shop, the military and a quick lube bay each leave different gaps. Ask what they were doing in their first year compared with now: ten years of the same oil changes is one year of experience, repeated.
What kind of shop have you worked in: dealership, independent, chain, or fleet?
Why ask it
Each setting builds different habits. Dealership techs are used to factory procedures and warranty paperwork; fleet techs are used to preventive schedules and downtime pressure; independents are used to deciding what a repair is worth on a used car. Mismatch is trainable, but you should know which one you are hiring.
What certifications do you hold, and when do they come up for renewal?
Why ask it
Which body issues them depends on the country: in the US it is usually ASE, where each test covers one area and lapses unless it is retaken, and elsewhere it may be a trade license or a finished apprenticeship. A candidate who knows their own renewal dates is keeping them current. Ask about factory training too, since it tells you which makes they were taught on.
Which makes do you know best, and which have you hardly touched?
Why ask it
A candidate who claims every make equally is exaggerating or has not yet met a manufacturer-specific quirk. A short, honest list is the stronger answer, and stronger still if it overlaps the cars in your lot. For the rest, ask how they get up to speed on a vehicle they have never seen.
Walk me through the last car you diagnosed. What was the complaint and how did you find the fault?
Why ask it
The story exposes method. Strong answers move from verifying the complaint to narrowing with test results; weak answers move straight to replacing the part that usually gets blamed for that symptom. Ask how long it took and whether that time was paid, which tells you how their last shop treated diagnosis.
Why are you leaving your current shop, or why did you leave the last one?
Why ask it
Pay, hours, a flat rate system that left them standing around, a falling-out with a service writer: all ordinary answers. Listen for whether the story has any part of their own in it, and whether the thing they are leaving is something your shop has too.
Why this shop? What made you apply here?
Why ask it
A good answer has something of your shop in it: the makes you see, a name for diagnostics, a tech they know who works here, a shorter drive. 'I need a job' is honest and should not rule anyone out. Follow it by asking what they would want to know about you before saying yes.
Skills
What fills most of your week right now: maintenance, heavy repair, diagnostics, or a mix?
Why ask it
The word technician covers everything from tires and oil to engine teardown. Match the answer to the work you really have. If they want to move up from what they do now, say plainly whether that work exists in your shop.
Which systems are you strongest on, and which would you rather hand to someone else?
Why ask it
Nearly every tech has a system they avoid, often transmissions, air conditioning or electrical. An honest weak spot lets you plan dispatch around it. A claim to do everything equally well leaves you guessing who gets the next wiring job.
How much diesel work have you done, and on what: pickups, vans, heavy trucks?
Why ask it
Diesel experience is not one skill. Someone who has serviced delivery vans may never have chased an exhaust after-treatment fault or done an injector job. Ask about the last diesel they diagnosed, and if your work is all gasoline cars, say so and move on.
What scan tools and software have you used, and which do you reach for first?
Why ask it
Naming specific platforms and what each is good for shows real use. 'Whatever the shop had' can mean they read the codes and passed the hard diagnostics to someone else. Say what you run, and ask whether they have used it for more than code reads: live data, bidirectional tests, programming.
Where do you look up a procedure, a wiring diagram or a torque spec you don't know?
Why ask it
You want named sources: the manufacturer's service information, a repair database the shop subscribes to, technical service bulletins. Videos and forums are fine for ideas, but a tech who relies on them alone will one day tighten something to a number a stranger guessed.
How comfortable are you with a wiring diagram and a multimeter? Talk me through a voltage drop test.
Why ask it
Electrical work is hard to hire for and hard to fake. Someone who really does voltage drop tests can say where the leads go, that the circuit has to be loaded, and what reading would bother them. A recited definition with no numbers usually means they have watched one.
How much have you worked on hybrids and EVs, and what high voltage training have you had?
Why ask it
A good answer starts with the precautions in the manufacturer's procedure: isolating the battery, insulated gloves and tools, checking the system is dead before touching it. Ask what high voltage training they have had and who gave it, since some employers and some countries require a named qualification. Confidence with no mention of a safety step is the answer to worry about.
Have you calibrated driver assistance cameras or radar, for example after a windshield, a bumper repair or an alignment?
Why ask it
Jobs that used to be simple can now end with a calibration, depending on what the manufacturer's procedure says for that car. Even if you send calibrations out, you need a tech who checks whether one is called for and will not hand back a car with the system quietly out of aim.
What is the biggest job you have done from start to finish on your own?
Why ask it
An engine out and back in, a timing chain, a harness repair: the size of the job shows where their ceiling is today. Follow up with what went wrong partway through, since something always does on a job that long, and the recovery is the interesting part.
How do you keep up with new vehicle technology, and what was the last training you took?
Why ask it
The last course and its date are the checkable part. If there has been nothing for years, find out whether training was never offered or was offered and turned down, because only one of those is about the candidate. Then tell them what your shop pays for.
Are you certified to handle refrigerant, and how much air conditioning work have you done?
Why ask it
Many places require a separate credential before anyone recovers or charges refrigerant, so check what applies where you are and ask to see it. Then ask how they find a leak. Topping up a system and sending it out is the answer you do not want.
Have you done safety or emissions inspections, and do you hold an inspector's license for this area?
Why ask it
Inspection programs and inspector licensing differ by state and country, so ask what they held and where, and confirm what yours requires. A good follow-up: tell me about a car you failed that the owner badly wanted passed.
If the job is on a golf course, which turf equipment have you worked on: reel mowers, rotary mowers, utility vehicles, aerators?
Why ask it
A capable auto tech can still be new to every machine in a golf course shop. Engines, hydraulics and electrical work carry over; cutting units do not. Ask which brands the last course ran and how many machines there were, then set that beside your own equipment list.
Walk me through setting up a reel cutting unit, from the bedknife to the height of cut.
Why ask it
People who have done it describe an order: check the bearings and the reel, set the reel against the bedknife, then set the height with a gauge bar and match both ends. Ask how they test the cut afterward, which is often a strip of paper. 'Sharpening the blades' and nothing more usually means their time has been on rotary decks.
Have you run reel and bedknife grinders, and how do you decide between grinding and backlapping?
Why ask it
Shops and manufacturers disagree on this one, so you are listening for a reason and not a rule. It might be the edge they see, the look of the cut grass or the hours since the last grind. If your course sends its grinding out, or has no grinder, tell them, because that changes the job.
The superintendent says a green is showing streaks after mowing. How do you find out whether the mower is the cause?
Why ask it
Quality of cut is where this job's work shows on the grass. Expect them to walk out and look at the turf, then check the suspect unit for height, contact and a nicked reel or bedknife against the units beside it. Someone who never leaves the shop to see the cut ends up arguing from the bench.
A hydraulic hose bursts on a mower in the middle of a green. What should the operator do, and what do you do afterward?
Why ask it
Hot oil can kill the turf it lands on, so the first minute belongs to the operator: stop, shut down, and get the machine off the green without trailing the leak across it. The mechanic's half is everything before and after. Do they inspect hoses and fittings on a schedule and train the crew for this, or replace hoses as they fail?
How do you fit preventive maintenance around mowers that go out at first light and are needed again tomorrow?
Why ask it
A course fleet has no spare week. Good answers have a system: hour meters, a schedule for each machine, service in the afternoon or on rain days, and the heavy rebuilds saved for the slow season where there is one. Ask to see or hear how the records were kept.
What have you done with golf cart fleets, electric or gas, including batteries and chargers?
Why ask it
On some courses the carts belong to the pro shop or a leasing company and the mechanic never touches them; on others they are half the week. Say which yours is. With an electric fleet, ask how they track down the one weak battery in a pack and what they rule out before blaming the charger.
How do you get the grounds crew to check, wash and report on the machines they run?
Why ask it
Seasonal operators are either the early warning or the cause of the damage, and training decides which. Listen for specifics: a walk-around before starting, grease points, where to write up a machine that sounds wrong. Notice any contempt for the crew, since they are the nearest thing this job has to customers.
Have you kept a parts inventory and a repair budget, and what did you always have on the shelf?
Why ask it
A golf course mechanic is often the whole department: ordering bedknives, filters and belts, and telling the superintendent what an old machine costs to keep alive. The shelf list shows whether they have watched a mower sit for a week over a small part. If purchasing is handled elsewhere at your course, explain how a request works.
Diagnostics
Tell me about a diagnosis you got wrong. How did you find out, and what did you do next?
Why ask it
Everyone with real bench time has replaced the wrong part. The useful half of the story is what came after: who told the customer, who paid for the part that did not fix it, and which test they now run first. A candidate who cannot recall a single miss is either new or not telling you.
A car comes in with an intermittent electrical fault the customer says two other shops missed. Where do you start?
Why ask it
Look for the boring answers: check for stored codes and freeze frame data, verify grounds, inspect connectors, try to reproduce the conditions. A candidate who jumps to a module or a wiring harness replacement without testing will do that on your dime.
A customer says the car makes a noise 'sometimes'. What do you ask before you touch it?
Why ask it
The first test is the conversation with the driver: when it happens, at what speed, hot or cold, turning or braking. Techs who skip it road test blind and bill the time anyway. A candidate who offers to ride along with the customer has done this before.
The check engine light is on and the scan tool shows one code. What happens between reading it and ordering a part?
Why ask it
A code names a circuit or a condition, not a failed part. A good answer has steps in it: freeze frame and live data, the wiring and connector, a search for bulletins. If the story goes straight from an oxygen sensor code to a new oxygen sensor, you will be paying for guesses.
How do you approach a drivability complaint when no codes are stored at all?
Why ask it
With nothing to read, the tech has to reason. Expect fuel trims, a smoke test for vacuum leaks, fuel pressure, perhaps a scope. A long pause followed by 'I would start with a tune-up' tells you the hard cars will stall in this bay or drift to someone else's.
How do you decide when to stop diagnosing and call the customer with what you have?
Why ask it
Diagnostic time is easy to give away. Listen for a budget: an hour approved, a report of what has been ruled out so far, and a call asking for more time before it is spent. The other kind of tech chases the fault until someone interrupts, and the shop absorbs the hours.
When you are stuck on a car, what do you do, and who do you ask?
Why ask it
Good techs get stuck too. They have a routine for it: go back to the last thing they proved, call a technical hotline, walk over to the next bay. Pride that keeps someone silent on one car for two days is expensive, so give credit to the candidate who admits to asking.
After a repair, how do you confirm the fix before the car leaves your bay?
Why ask it
A cleared code and a dark dashboard in the parking lot prove nothing. Look for a road test under the conditions of the original complaint and a second look at the data. Where a monitor needs a few drive cycles to run, the honest move is a note on the repair order saying so.
Customers
How do you explain a needed repair to a customer who thinks you are just upselling them?
Why ask it
The good version involves showing evidence, the worn part, the measurement, the photo, and separating what is unsafe now from what can wait. Techs who get defensive here generate the complaints that reach you.
You find a second problem after the customer already approved the first repair. What do you do?
Why ask it
This happens daily, and in many places a shop needs the customer's approval before going past the estimate, so know the rule where you are. You want to hear that work stops and the customer is called before any additional labor, not that they used judgment and kept going.
Tell me about an angry customer who blamed you for a repair. What did you do?
Why ask it
Follow the order of events. Did they hear the person out and look at the car before defending the work? If the customer is the villain all the way through the story, expect the same conversation at your counter.
How do you handle a comeback, a car returning with the same complaint you already worked on?
Why ask it
Watch for whether they take the car back themselves and recheck their own work before deciding the customer described the problem wrong. Then ask how their last shop paid comebacks. A tech who redid the job for nothing had a reason to argue it was a new fault, and you should know whether that habit is coming with them.
On an inspection you find brake pads that are worn but still within spec. What do you write down, and what do you recommend?
Why ask it
Honesty shows up in small calls like this one. A measurement on paper with 'fine for now, recheck at the next service' builds the trust that sells work later. Calling it urgent is one way to lose a customer; writing nothing because it takes time is the other.
What do you write on a repair order when you finish a job?
Why ask it
Complaint, cause and correction is the usual shape, and warranty and fleet work tend to depend on it. 'Replaced part, OK' is no use to the service writer on the phone or to the next tech who sees that car. Ask them to write up the diagnosis they described earlier.
The customer was promised the car by five and it will not be ready. What do you do, and when?
Why ask it
Early is the whole answer: tell the advisor the moment the job slips, with a new time you actually believe. Saying nothing until five and rushing the last steps to keep the promise are the two outcomes you are trying to screen out.
Shop habits
How do you keep track of a job that is waiting on parts while three other cars are in your bay?
Why ask it
You are hoping for a system that lives outside their head: a tag on the car, a note on the repair order, the parts shelved with the ticket, a line on the whiteboard. Ask what they do when the part arrives and it is the wrong one. That is the day jobs get lost and the customer starts phoning the counter.
What do you check before you raise a car on a lift?
Why ask it
The lift points for that vehicle, the arms and locks, where the weight sits, and a shake test a few inches off the ground. A careful tech lists these in ten seconds. Take a vague answer here more seriously than a weak one on anything technical: this is the mistake that injures people.
What safety gear do you put on without being told, and for which jobs?
Why ask it
A tech with the habit names the job along with the gear: glasses under a car, gloves for brake cleaner and batteries, ear protection near an air hammer. Tell them what your shop requires and what it supplies. Someone who shrugs at glasses is unlikely to be fussier about jack stands.
When do you reach for a torque wrench, and when do you go by feel?
Why ask it
Wheels are the test case. A tech who runs lug nuts on with an impact gun and walks away is one loose wheel from a claim against your shop. Listen for 'anything with a published spec', then tell them your own rule on wheels so there is no doubt later.
Tell me about a time you broke a part or damaged a customer's car during a job. Who did you tell?
Why ask it
Snapped bolts, a scratched fender and a cracked trim panel happen in every bay. You want the person who reported it before the customer found it. Someone who says they have never broken anything has done very little work or told nobody.
You are handed a job another tech started and left half apart. What do you do first?
Why ask it
The careful answer is to stop and find out what was done: read the repair order, talk to the other tech if they can be reached, and check every fastener they touched instead of trusting it. Notice how they speak about the other person's work. Running a colleague down in the interview is a preview of the bay.
Tell me about a time you disagreed with a service writer or a manager about a repair.
Why ask it
The disagreement itself is fine; how it ended is the point. The usual fights are over a repair the tech thought was oversold, or a car going out with something they would not put their name to. Hope for someone who said so once, plainly, and had it written on the repair order; going silent and refusing to release the car are the two bad endings.
Is there any work you will not do on a car, and why?
Why ask it
The best answers describe a line they held when it cost them something: declining to remove emissions equipment, to fit an unsafe part the customer supplied, or to sign for work they had not checked. Ask what happened the last time a customer or a boss pushed. 'I do whatever pays' should slow you down.
Have you trained an apprentice or a lube tech, and how did you go about it?
Why ask it
A senior tech who teaches raises the level of the whole shop, and one who guards what they know leaves you just as short-handed in five years. If you plan to pair them with a junior, say so now. On flat rate, ask who paid for the hours they spent teaching, because that usually decides how willing they were.
How do you feel about another tech checking your brake or steering work before the car goes back?
Why ask it
Some shops put a second set of eyes on anything safety critical, and some techs hear that as an insult. Describe your own check, if you have one, and watch the response. It is a fair preview of how they take correction on everything else.
The lube tech is out and there are six oil changes on the board. How do you feel about taking them?
Why ask it
In a small shop everyone does maintenance sometimes, and on flat rate it usually pays less than the job they were hoping for. A groan is honest and forgivable. A flat no is a look at every slow Tuesday to come.
Pay and fit
How many hours a week have you been billing, and what does a productive day look like for you?
Why ask it
A flat rate tech knows this number without thinking, often as hours flagged against hours on the clock. One who has never tracked it has probably been paid by the hour in a shop that did not measure output, which is a real adjustment if yours does. Ask how busy the shop was behind the number, because nobody bills hours on cars that never came in.
Do you prefer flat rate or hourly, and why?
Why ask it
Flat rate pays the book time for a job however long it takes, so it suits a fast tech in a busy shop and can leave a careful diagnostician short. The reasoning matters more than the preference. Once you have heard it, explain exactly how you pay, including what a slow week looks like and how diagnostic time is paid.
Which tools do you own, and what would you need us to supply?
Why ask it
Shops commonly expect a tech to bring hand tools while the shop supplies the heavy equipment, but the line sits somewhere different in every shop, so say where yours is. Ask about the things that stall a job in the first week: torque wrenches, a multimeter they trust, a scan tool of their own. A thin box is normal for an apprentice; with ten years claimed it needs a story.
What do you need to earn, and what matters to you besides the rate: a weekly guarantee, benefits, a tool allowance, paid training?
Why ask it
Asking what they need keeps you clear of questions about past pay, which some places restrict, so check the rules where you hire. The extras are where a small shop can compete with a dealer: a floor in slow weeks, training on the clock, uniforms, a real lunch break.
Can you work the hours this job needs, including Saturdays or road calls if we have them?
Why ask it
State your real schedule first, then ask. A tech who agrees to Saturdays today and resents them by the second month was usually never told how many there would be. Any on-call, towing or mobile work belongs in this part of the conversation, not in the first week.
Do you have a valid driver's license, and can you drive a manual?
Why ask it
Road tests are part of the job, and your insurer may have its own rules on who can drive customers' cars, so ask them what record they will accept. The manual gearbox half is purely practical: someone has to move the car that arrives with a clutch complaint.
What would your last foreman say you need to work on?
Why ask it
Naming a real person makes a stock answer harder, and you can put the same question to that foreman on the reference call. Honest answers in this trade tend to be concrete: slow on paperwork, leaves the bay a mess, avoids electrical, short with the advisors. 'I care too much about quality' is the candidate managing the interview.
What kind of work do you want to be doing three years from now?
Why ask it
Someone aiming at diagnostics, a foreman's job or their own shop needs different work from someone content with maintenance volume. Say honestly which of those your shop can offer. A tech hired for a path that does not exist tends to find it somewhere else.
What would make you leave a shop in the first six months?
Why ask it
Put plainly, this gets you the deal breakers: an empty bay, equipment that stays broken, an advisor who oversells, pay that does not match what was promised. If one of them describes your shop, it is better that both of you know today.
If we made you an offer, when could you start, and how much notice does your current shop need?
Why ask it
A tech willing to walk out tomorrow with cars half finished may one day leave you the same way. Allow for the toolbox as well: moving a full roll cabinet takes a truck and usually a day off. If their employer does not know they are looking, agree now on when you may call for a reference.
What do you want to ask me about the shop, the equipment or the work?
Why ask it
A good tech interviews the shop back: car count, who dispatches, which lifts and scan tools you have, how comebacks are paid. Answer straight, including the unflattering parts. No questions at all can be nerves, or it can be someone who will take any bay that is open.
Hiring an automotive technician
Practical guidance for the conversation itself
Which questions for which candidate
An apprentice or lube tech
Stay with Start here, the lift, safety gear and torque wrench questions, and the one about who they ask when they are stuck. You are hiring care and attitude, so skip the scan tool and wiring questions they cannot answer yet and ask what they want to learn first.
A general line technician
Spend most of the time in Skills and Customers. The repair order, the worn brake pads and the comeback questions show how the work will look to the people paying for it.
A diagnostic or master technician
Go deep in Diagnostics and let the stories run long. Settle the Pay and fit questions early with this group: billed hours, how diagnostic time is paid and any weekly guarantee tend to decide whether they take the job.
A golf course mechanic
Start here works as written if you say mower where it says car. Then go to the nine turf questions that close Skills, and keep the lift, safety gear and torque wrench questions from Shop habits. In Customers, hear superintendent and crew wherever it says customer: a comeback on a course is a mower that is not ready when the crew arrives. Leave out the questions on road vehicle inspections and driver assistance cameras.
Nobody gets the whole list
Ten to fifteen questions fill an hour once the follow-ups start. Ask every candidate for the same job the same core set, so you are comparing answers and not conversations.
Test the hands, not just the conversation
Use a paid working interview
A few hours on a real car with a real work order shows things no interview question can. Pay for the time, brief them on your safety rules first, and watch how they treat the vehicle and the bay, not just whether they finish. Before you try it, ask your insurer and check local employment rules on having someone who is not yet an employee work in your shop.
Give them a car with a known fault
Set up a vehicle with a fault you have already documented and see how they approach it. The order of their tests matters more than the elapsed time.
Watch the cleanup
Fender covers, seat protection, where the old parts end up, whether the tools go back. These habits show up in customer complaints long before they show up in comeback rates.
What to verify before an offer
- Certification status directly with the issuing body, not from a photo of a card.
- Any refrigerant credential or inspector's license the job depends on, and whether it is valid where your shop is.
- A valid driver's license, and a driving record your insurer will accept, since the job involves road testing customer vehicles.
- Dates of employment with the last two shops, which is often all a former employer will confirm.
- Whether they have signed a non-compete or a customer non-solicit with a previous employer. How far those hold varies by place, so get advice before relying on a guess.
- The tools they said they would bring, and how and when the toolbox will arrive.
Making reference calls useful
Ask before you call the current shop
Many candidates are looking quietly. A call to their present employer without permission can cost them the job they have, so agree which shops you may contact and when.
Ask the foreman, not the owner
The person who assigned work day to day knows the comebacks, the attendance, and whether other techs wanted to work alongside them.
Ask one specific question
Would you put them on your hardest diagnostic job? A reference who will only confirm dates is following policy, but one who is free to talk and still hesitates here is telling you something.
Common hiring mistakes
Hiring on speed alone
A fast tech whose cars come back can cost more than a steadier one who fixes it once: the bay is tied up twice and the customer remembers. Ask about comebacks directly, because nobody volunteers them.
Skipping the customer-facing part
In a small shop the technician often talks to the owner of the car. A tech who cannot explain a repair without talking down to people will lose you customers however good the work is.
Being vague about pay structure
Flat rate or hourly, any weekly guarantee, how diagnostic time is paid and who covers training hours should all be said plainly in the interview and written into the offer. Then nobody is working from memory when the first slow week comes.
Ignoring the tool question
A candidate who arrives with almost no tools cannot work alone until the gaps are filled. That is workable if you plan for it, with shop tools or an allowance, and expensive if you discover it on day one.
Asking what you are not allowed to ask
Questions about age, health, past injuries, family plans, religion or where someone comes from are restricted in many places, and none of them shows whether a person can fix a car. If the job has physical demands, describe them and ask whether the candidate can do them. The exact rules differ by country and state, so check yours before the interview.